Phototransistors
(266)Phototransistors are semiconductor optoelectronic devices. Phototransistors are usually bipolar transistors. The current in the phototransistor depends on the intensity of incident light. With bright lighting, the base-collector voltage is around 0V. In other aspects, phototransistors are similar to conventional transistors, so they are easy to implement and used in many applications.
Construction of phototransistors
A phototransistor has a photodiode at its base-collector junction. The current flow between the collector and the emitter is determined by the current generated by light (photons) falling on the base-collector junction (just like in the case of an ordinary transistor).Since phototransistor are light-sensitive devices, they are packaged in transparent housings and are visually similar to LEDs (3/5mm). A phototransistor can be either a two-lead (emitter-collector) or a three-lead device (where the base lead is brought out). They are available in both through-hole and surface mount (THT, SMT) housings, as well as in a miniature 0805 package.
Applications of phototransistors
Although phototransistors have shorter response time than photoresistors, they are inferior to photodiodes in this respect. They also need relatively intense lighting to work properly. Nevertheless, since they are characterized by their broad-spectrum sensitivity, they are ideal, among other things, as infrared receivers. Phototransistors are used as components of photoelectric sensors, as well as in automation and security systems.Phototransistors are used in optocouplers, i.e. devices that galvanically separates circuits, e.g., in telecommunications equipment or when using microcontroller outputs to control inductive loads (electromagnetic relays etc.). This is why optocouplers have related operating parameters to phototransistors.
Phototransistor parameters
Generally, phototransistors should be selected taking into account electrical parameters of bipolar transistors. Certainly, attention should be paid to the collector-emitter voltage and power (heat dissipation).There are several features specific to phototransistors or optoelectronic semiconductor devices. These include the viewing angle, which allows determining the optimal incident angle in relation to the component face; the dark current, i.e. the leakage current of the collector-base junction when the device is supposed to be off; the peak sensitivity wavelength (here it should be remembered that phototransistors are very sensitive to radiation, and this parameter only determines the peak sensitivity wavelength). In some applications, especially in the field of communication, the switch-on and switch-off times, which determine how long it takes for the phototransistor to reach the nominal conduction for a given light intensity, will be of great importance.Taking into account the specifics of a given project, the dimensions of the PCB, and even aesthetic considerations, attention should also be paid to the mechanical parameters, including the shape, diameter, and colour of the lens (note: it can be used as an IR filter, limiting the amount of light reaching the device). And, of course, assembly method.
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Phototransistor; THT; 75mW; 3mm; λp max: 940nm; 30V; 30°
Manufacturer part number: LL-304PTD4B-1A
Manufacturer: LUCKYLIGHT
Net price for quantities from 5 pcs - 1.02 DKKGross price for quantities from 5 pcs - 1.28 DKK
Net price for quantities from 30 pcs - 0.43 DKKGross price for quantities from 30 pcs - 0.53 DKK
Net price for quantities from 100 pcs - 0.40 DKKGross price for quantities from 100 pcs - 0.50 DKK
Net price for quantities from 500 pcs - 0.35 DKKGross price for quantities from 500 pcs - 0.44 DKK
Net price for quantities from 2000 pcs - 0.32 DKKGross price for quantities from 2000 pcs - 0.40 DKK
92387 in TME stock
No. of pieces (Multiplicity: 5)
Phototransistor; SMD; 580nm; 60V; 120°
Manufacturer part number: KPS-3227SP1C
Manufacturer: KINGBRIGHT ELECTRONIC
Net price for quantities from 1 pcs - 5.08 DKKGross price for quantities from 1 pcs - 6.35 DKK
Net price for quantities from 10 pcs - 3.39 DKKGross price for quantities from 10 pcs - 4.24 DKK
Net price for quantities from 20 pcs - 3.11 DKKGross price for quantities from 20 pcs - 3.88 DKK
Net price for quantities from 30 pcs - 2.97 DKKGross price for quantities from 30 pcs - 3.72 DKK
Net price for quantities from 50 pcs - 2.83 DKKGross price for quantities from 50 pcs - 3.54 DKK
Net price for quantities from 100 pcs - 2.68 DKKGross price for quantities from 100 pcs - 3.35 DKK
Net price for quantities from 200 pcs - 2.56 DKKGross price for quantities from 200 pcs - 3.20 DKK
Net price for quantities from 400 pcs - 2.47 DKKGross price for quantities from 400 pcs - 3.08 DKK
Net price for quantities from 2000 pcs - 2.33 DKKGross price for quantities from 2000 pcs - 2.91 DKK
12134 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 3mm; λp max: 570nm; 6V; 30°; λd: 440÷800nm
Manufacturer part number: TEPT4400
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 2.47 DKKGross price for quantities from 1 pcs - 3.08 DKK
Net price for quantities from 10 pcs - 2.24 DKKGross price for quantities from 10 pcs - 2.80 DKK
Net price for quantities from 25 pcs - 2.13 DKKGross price for quantities from 25 pcs - 2.66 DKK
Net price for quantities from 50 pcs - 2.03 DKKGross price for quantities from 50 pcs - 2.55 DKK
Net price for quantities from 100 pcs - 1.93 DKKGross price for quantities from 100 pcs - 2.42 DKK
Net price for quantities from 250 pcs - 1.80 DKKGross price for quantities from 250 pcs - 2.25 DKK
Net price for quantities from 500 pcs - 1.72 DKKGross price for quantities from 500 pcs - 2.15 DKK
Net price for quantities from 1000 pcs - 1.66 DKKGross price for quantities from 1000 pcs - 2.07 DKK
Net price for quantities from 5000 pcs - 1.53 DKKGross price for quantities from 5000 pcs - 1.91 DKK
Net price for quantities from 10000 pcs - 1.46 DKKGross price for quantities from 10000 pcs - 1.83 DKK
1843 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; 5mm; λp max: 940nm; 30V; 30°
Manufacturer part number: L-53P3C
Manufacturer: KINGBRIGHT ELECTRONIC
Net price for quantities from 1 pcs - 1.36 DKKGross price for quantities from 1 pcs - 1.70 DKK
Net price for quantities from 100 pcs - 1.16 DKKGross price for quantities from 100 pcs - 1.45 DKK
Net price for quantities from 400 pcs - 1.00 DKKGross price for quantities from 400 pcs - 1.26 DKK
Net price for quantities from 1000 pcs - 0.91 DKKGross price for quantities from 1000 pcs - 1.14 DKK
Net price for quantities from 3000 pcs - 0.83 DKKGross price for quantities from 3000 pcs - 1.03 DKK
7380 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; 5mm; λp max: 570nm; 6V; 20°; Lens: transparent
Manufacturer part number: TEPT5600
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 3.89 DKKGross price for quantities from 1 pcs - 4.86 DKK
Net price for quantities from 5 pcs - 3.67 DKKGross price for quantities from 5 pcs - 4.58 DKK
Net price for quantities from 10 pcs - 3.49 DKKGross price for quantities from 10 pcs - 4.36 DKK
Net price for quantities from 25 pcs - 3.21 DKKGross price for quantities from 25 pcs - 4.00 DKK
Net price for quantities from 50 pcs - 2.98 DKKGross price for quantities from 50 pcs - 3.72 DKK
Net price for quantities from 100 pcs - 2.78 DKKGross price for quantities from 100 pcs - 3.47 DKK
Net price for quantities from 250 pcs - 2.55 DKKGross price for quantities from 250 pcs - 3.18 DKK
Net price for quantities from 500 pcs - 2.44 DKKGross price for quantities from 500 pcs - 3.05 DKK
Net price for quantities from 1000 pcs - 2.36 DKKGross price for quantities from 1000 pcs - 2.95 DKK
5393 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; 1206; SMD; 75mW; Dim: 3.2x1.6x1.1mm; λp max: 940nm
Manufacturer part number: LL-S150PTD-1A
Manufacturer: LUCKYLIGHT
Net price for quantities from 4 pcs - 1.28 DKKGross price for quantities from 4 pcs - 1.60 DKK
Net price for quantities from 20 pcs - 0.89 DKKGross price for quantities from 20 pcs - 1.11 DKK
Net price for quantities from 100 pcs - 0.82 DKKGross price for quantities from 100 pcs - 1.02 DKK
Net price for quantities from 500 pcs - 0.71 DKKGross price for quantities from 500 pcs - 0.89 DKK
Net price for quantities from 1000 pcs - 0.67 DKKGross price for quantities from 1000 pcs - 0.84 DKK
12000 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; 5mm; λp max: 570nm; 6V; 50°; Lens: transparent
Manufacturer part number: TEPT5700
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 3.75 DKKGross price for quantities from 1 pcs - 4.69 DKK
Net price for quantities from 10 pcs - 3.37 DKKGross price for quantities from 10 pcs - 4.21 DKK
Net price for quantities from 100 pcs - 3.00 DKKGross price for quantities from 100 pcs - 3.74 DKK
Net price for quantities from 500 pcs - 2.85 DKKGross price for quantities from 500 pcs - 3.56 DKK
Net price for quantities from 1000 pcs - 2.76 DKKGross price for quantities from 1000 pcs - 3.45 DKK
Net price for quantities from 2000 pcs - 2.62 DKKGross price for quantities from 2000 pcs - 3.28 DKK
Net price for quantities from 4000 pcs - 2.38 DKKGross price for quantities from 4000 pcs - 2.98 DKK
Net price for quantities from 8000 pcs - 2.24 DKKGross price for quantities from 8000 pcs - 2.80 DKK
1041 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; 1.8mm; λp max: 825nm; 32V; 24°
Manufacturer part number: BPW17N
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 4.95 DKKGross price for quantities from 1 pcs - 6.18 DKK
Net price for quantities from 10 pcs - 3.00 DKKGross price for quantities from 10 pcs - 3.74 DKK
Net price for quantities from 25 pcs - 2.22 DKKGross price for quantities from 25 pcs - 2.77 DKK
Net price for quantities from 50 pcs - 1.87 DKKGross price for quantities from 50 pcs - 2.34 DKK
Net price for quantities from 100 pcs - 1.71 DKKGross price for quantities from 100 pcs - 2.14 DKK
Net price for quantities from 4000 pcs - 1.59 DKKGross price for quantities from 4000 pcs - 1.99 DKK
4466 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 165mW; 3mm; λp max: 860nm; 35V; 12°
Manufacturer part number: SFH 309-5
Manufacturer: ams OSRAM
Net price for quantities from 10 pcs - 2.19 DKKGross price for quantities from 10 pcs - 2.74 DKK
Net price for quantities from 50 pcs - 1.47 DKKGross price for quantities from 50 pcs - 1.84 DKK
Net price for quantities from 100 pcs - 1.06 DKKGross price for quantities from 100 pcs - 1.32 DKK
Net price for quantities from 200 pcs - 0.98 DKKGross price for quantities from 200 pcs - 1.23 DKK
13310 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; 5mm; λp max: 940nm; 30V; 30°
Manufacturer part number: L-53P3BT
Manufacturer: KINGBRIGHT ELECTRONIC
Net price for quantities from 5 pcs - 1.32 DKKGross price for quantities from 5 pcs - 1.65 DKK
Net price for quantities from 30 pcs - 1.03 DKKGross price for quantities from 30 pcs - 1.29 DKK
Net price for quantities from 100 pcs - 0.83 DKKGross price for quantities from 100 pcs - 1.03 DKK
Net price for quantities from 500 pcs - 0.79 DKKGross price for quantities from 500 pcs - 0.99 DKK
Net price for quantities from 2000 pcs - 0.72 DKKGross price for quantities from 2000 pcs - 0.90 DKK
0 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 3mm; λp max: 940nm; 30V; 30°
Manufacturer part number: L-93DP3C
Manufacturer: KINGBRIGHT ELECTRONIC
Net price for quantities from 1 pcs - 1.20 DKKGross price for quantities from 1 pcs - 1.50 DKK
Net price for quantities from 5 pcs - 1.12 DKKGross price for quantities from 5 pcs - 1.40 DKK
Net price for quantities from 100 pcs - 1.00 DKKGross price for quantities from 100 pcs - 1.26 DKK
Net price for quantities from 1000 pcs - 0.79 DKKGross price for quantities from 1000 pcs - 0.99 DKK
20288 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 165mW; 3mm; λp max: 900nm; 35V; 12°
Manufacturer part number: SFH 309 FA-4
Manufacturer: ams OSRAM
Net price for quantities from 1 pcs - 4.34 DKKGross price for quantities from 1 pcs - 5.42 DKK
Net price for quantities from 5 pcs - 2.53 DKKGross price for quantities from 5 pcs - 3.16 DKK
Net price for quantities from 10 pcs - 2.28 DKKGross price for quantities from 10 pcs - 2.85 DKK
Net price for quantities from 25 pcs - 2.03 DKKGross price for quantities from 25 pcs - 2.54 DKK
Net price for quantities from 50 pcs - 1.88 DKKGross price for quantities from 50 pcs - 2.35 DKK
Net price for quantities from 100 pcs - 1.75 DKKGross price for quantities from 100 pcs - 2.19 DKK
Net price for quantities from 500 pcs - 1.52 DKKGross price for quantities from 500 pcs - 1.89 DKK
Net price for quantities from 1000 pcs - 1.46 DKKGross price for quantities from 1000 pcs - 1.82 DKK
Net price for quantities from 2000 pcs - 1.41 DKKGross price for quantities from 2000 pcs - 1.76 DKK
Net price for quantities from 10000 pcs - 1.31 DKKGross price for quantities from 10000 pcs - 1.64 DKK
55 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; TO18; THT; 850nm; 70V; 20°; Lens: transparent
Manufacturer part number: BPW77NB
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 19.37 DKKGross price for quantities from 1 pcs - 24.21 DKK
Net price for quantities from 10 pcs - 14.65 DKKGross price for quantities from 10 pcs - 18.32 DKK
Net price for quantities from 25 pcs - 13.84 DKKGross price for quantities from 25 pcs - 17.30 DKK
Net price for quantities from 50 pcs - 13.32 DKKGross price for quantities from 50 pcs - 16.65 DKK
Net price for quantities from 75 pcs - 12.94 DKKGross price for quantities from 75 pcs - 16.17 DKK
Net price for quantities from 100 pcs - 12.71 DKKGross price for quantities from 100 pcs - 15.89 DKK
Net price for quantities from 125 pcs - 12.56 DKKGross price for quantities from 125 pcs - 15.70 DKK
582 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 3mm; λp max: 940nm; 30V; 20°; Lens: black
Manufacturer part number: LTR-4206E
Manufacturer: LITEON
Net price for quantities from 1 pcs - 0.72 DKKGross price for quantities from 1 pcs - 0.89 DKK
Net price for quantities from 10 pcs - 0.57 DKKGross price for quantities from 10 pcs - 0.71 DKK
Net price for quantities from 100 pcs - 0.49 DKKGross price for quantities from 100 pcs - 0.61 DKK
Net price for quantities from 300 pcs - 0.47 DKKGross price for quantities from 300 pcs - 0.58 DKK
Net price for quantities from 500 pcs - 0.46 DKKGross price for quantities from 500 pcs - 0.57 DKK
Net price for quantities from 1000 pcs - 0.44 DKKGross price for quantities from 1000 pcs - 0.55 DKK
Net price for quantities from 2000 pcs - 0.42 DKKGross price for quantities from 2000 pcs - 0.53 DKK
Net price for quantities from 5000 pcs - 0.41 DKKGross price for quantities from 5000 pcs - 0.51 DKK
Net price for quantities from 10000 pcs - 0.39 DKKGross price for quantities from 10000 pcs - 0.49 DKK
Net price for quantities from 25000 pcs - 0.37 DKKGross price for quantities from 25000 pcs - 0.46 DKK
25551 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; THT; Dim: 4.4x1.5x5.72mm; λp max: 940nm; 30V
Manufacturer part number: LTR-301
Manufacturer: LITEON
Net price for quantities from 1 pcs - 1.15 DKKGross price for quantities from 1 pcs - 1.44 DKK
Net price for quantities from 10 pcs - 0.90 DKKGross price for quantities from 10 pcs - 1.12 DKK
Net price for quantities from 100 pcs - 0.75 DKKGross price for quantities from 100 pcs - 0.94 DKK
Net price for quantities from 500 pcs - 0.71 DKKGross price for quantities from 500 pcs - 0.88 DKK
Net price for quantities from 1000 pcs - 0.64 DKKGross price for quantities from 1000 pcs - 0.80 DKK
Net price for quantities from 2000 pcs - 0.58 DKKGross price for quantities from 2000 pcs - 0.72 DKK
Net price for quantities from 5000 pcs - 0.51 DKKGross price for quantities from 5000 pcs - 0.63 DKK
Net price for quantities from 10000 pcs - 0.46 DKKGross price for quantities from 10000 pcs - 0.57 DKK
Net price for quantities from 20000 pcs - 0.42 DKKGross price for quantities from 20000 pcs - 0.52 DKK
Net price for quantities from 25000 pcs - 0.41 DKKGross price for quantities from 25000 pcs - 0.52 DKK
15267 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; SMD; λp max: 570nm; 6V; 60°; Lens: transparent
Manufacturer part number: TEMT6000X01
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 5.10 DKKGross price for quantities from 1 pcs - 6.38 DKK
Net price for quantities from 10 pcs - 3.96 DKKGross price for quantities from 10 pcs - 4.95 DKK
Net price for quantities from 50 pcs - 3.35 DKKGross price for quantities from 50 pcs - 4.18 DKK
Net price for quantities from 100 pcs - 3.13 DKKGross price for quantities from 100 pcs - 3.91 DKK
Net price for quantities from 250 pcs - 2.87 DKKGross price for quantities from 250 pcs - 3.59 DKK
1554 in TME stock
No. of pieces (Multiplicity: 1)
Product available till the stock lasts
Phototransistor; THT; 5mm; λp max: 950nm; 70V; 30°
Manufacturer part number: BPV11F
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 5.24 DKKGross price for quantities from 1 pcs - 6.55 DKK
Net price for quantities from 10 pcs - 3.71 DKKGross price for quantities from 10 pcs - 4.64 DKK
Net price for quantities from 25 pcs - 3.37 DKKGross price for quantities from 25 pcs - 4.21 DKK
Net price for quantities from 50 pcs - 3.16 DKKGross price for quantities from 50 pcs - 3.95 DKK
Net price for quantities from 100 pcs - 2.97 DKKGross price for quantities from 100 pcs - 3.72 DKK
Net price for quantities from 500 pcs - 2.63 DKKGross price for quantities from 500 pcs - 3.29 DKK
Net price for quantities from 1000 pcs - 2.51 DKKGross price for quantities from 1000 pcs - 3.14 DKK
Net price for quantities from 2000 pcs - 2.41 DKKGross price for quantities from 2000 pcs - 3.01 DKK
Net price for quantities from 6000 pcs - 2.28 DKKGross price for quantities from 6000 pcs - 2.85 DKK
1685 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 165mW; 3mm; λp max: 860nm; 35V; 12°
Manufacturer part number: SFH 309-4
Manufacturer: ams OSRAM
Net price for quantities from 2 pcs - 3.22 DKKGross price for quantities from 2 pcs - 4.02 DKK
Net price for quantities from 10 pcs - 1.86 DKKGross price for quantities from 10 pcs - 2.32 DKK
Net price for quantities from 100 pcs - 1.75 DKKGross price for quantities from 100 pcs - 2.19 DKK
Net price for quantities from 500 pcs - 1.56 DKKGross price for quantities from 500 pcs - 1.95 DKK
Net price for quantities from 1000 pcs - 1.46 DKKGross price for quantities from 1000 pcs - 1.83 DKK
Net price for quantities from 2000 pcs - 1.40 DKKGross price for quantities from 2000 pcs - 1.75 DKK
Net price for quantities from 4000 pcs - 1.31 DKKGross price for quantities from 4000 pcs - 1.63 DKK
8662 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; 0805; SMD; λp max: 850nm; 20V; 60°; λd: 470÷1090nm
Manufacturer part number: TEMT7000X01
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 5.17 DKKGross price for quantities from 1 pcs - 6.46 DKK
Net price for quantities from 10 pcs - 3.80 DKKGross price for quantities from 10 pcs - 4.75 DKK
Net price for quantities from 50 pcs - 3.20 DKKGross price for quantities from 50 pcs - 3.99 DKK
Net price for quantities from 100 pcs - 2.95 DKKGross price for quantities from 100 pcs - 3.69 DKK
Net price for quantities from 500 pcs - 2.40 DKKGross price for quantities from 500 pcs - 3.00 DKK
Net price for quantities from 1000 pcs - 2.16 DKKGross price for quantities from 1000 pcs - 2.70 DKK
Net price for quantities from 1500 pcs - 2.02 DKKGross price for quantities from 1500 pcs - 2.53 DKK
Net price for quantities from 3000 pcs - 1.80 DKKGross price for quantities from 3000 pcs - 2.25 DKK
Net price for quantities from 6000 pcs - 1.59 DKKGross price for quantities from 6000 pcs - 1.99 DKK
Net price for quantities from 9000 pcs - 1.55 DKKGross price for quantities from 9000 pcs - 1.94 DKK
5998 in TME stock
No. of pieces (Multiplicity: 1)
Phototransistor; T1; THT; 3mm; λp max: 850nm; 70V; 50°
Manufacturer part number: BPW85C
Manufacturer: VISHAY
Net price for quantities from 1 pcs - 2.78 DKKGross price for quantities from 1 pcs - 3.47 DKK
Net price for quantities from 10 pcs - 2.35 DKKGross price for quantities from 10 pcs - 2.94 DKK
Net price for quantities from 25 pcs - 2.14 DKKGross price for quantities from 25 pcs - 2.68 DKK
Net price for quantities from 50 pcs - 1.99 DKKGross price for quantities from 50 pcs - 2.48 DKK
Net price for quantities from 100 pcs - 1.83 DKKGross price for quantities from 100 pcs - 2.28 DKK
Net price for quantities from 500 pcs - 1.54 DKKGross price for quantities from 500 pcs - 1.92 DKK
Net price for quantities from 1000 pcs - 1.49 DKKGross price for quantities from 1000 pcs - 1.86 DKK
Net price for quantities from 2000 pcs - 1.43 DKKGross price for quantities from 2000 pcs - 1.79 DKK
Net price for quantities from 5000 pcs - 1.37 DKKGross price for quantities from 5000 pcs - 1.71 DKK
Net price for quantities from 10000 pcs - 1.33 DKKGross price for quantities from 10000 pcs - 1.66 DKK
2873 in TME stock
No. of pieces (Multiplicity: 1)