PT15-21B/TR8 The Everlight Electronics PT15-21B/TR8 is a phototransistor in a 1206 surface mount package. It offers fast response times and high photo sensitivity.
Mfr Part #:

PT15-21B/TR8

Available from 1 distributors
Mfr Name: Everlight Electronics
Everlight Electronics
The Everlight Electronics PT15-21B/TR8 is a phototransistor in a 1206 surface mount package. It offers fast response times and high photo sensitivity.
Total Stock: 1,710 pcs
$ Price Range: $1.16

PT15-21B/TR8 Available from 1 distributor

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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1,710 pcs
1710 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

PT15-21B/TR8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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PT15-21B/TR8 Description

Short technical summary and product information.

The Everlight Electronics PT15-21B/TR8 is a phototransistor designed for various sensing applications. It comes in a compact 1206 surface mount package, molded in black plastic with a flat top-view lens, spectrally matched to infrared emitting diodes.

 

Key electrical characteristics include a collector-emitter voltage (VCEO) of 30V and a maximum collector current (IC) of 20mA. The device boasts a fast response time with typical rise and fall times of 15ns, making it suitable for high-speed switching applications. Its collector dark current is a maximum of 100nA, and the on-state collector current is typically 0.3mA at 1mW/cm² irradiance.

 

This phototransistor operates within a temperature range of -25°C to +85°C and has a storage temperature range of -40°C to +85°C. The peak wavelength sensitivity is 980nm, with a spectral bandwidth ranging from 770nm to 1200nm.

 

Applications for the PT15-21B/TR8 include miniature switches, counters, sorters, interrupters, and position sensors. Its high reliability and small junction capacitance contribute to its suitability in demanding electronic designs.

PT15-21B/TR8 Quick Information

Product Type: Phototransistor
Series: PT15
Canonical Name: PT15-21B/TR8 Phototransistor

PT15-21B/TR8 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PT15-21B/TR8 Estimated Pricing

Qty Low High
1+ $1.16 $1.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

PT15-21B/TR8 Features

  • Miniature 1206 SMD package.
  • Fast response time of 15ns.
  • High photo sensitivity.
  • Spectrally matched to IR diodes.
  • Suitable for miniature switches.

PT15-21B/TR8 Applications

  • Used in miniature switch applications.
  • Ideal for counters and sorters.
  • Applicable for interrupter functions.
  • Functions as a position sensor.

PT15-21B/TR8 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the PT15-21B/TR8?

The operating temperature range is -25 to +85 °C.

What package is the PT15-21B/TR8 available in?

It is available in a 1206 surface mount package with a black lens.

What is the peak wavelength sensitivity of this phototransistor?

The peak sensitivity wavelength is 980 nm.

What are the rise and fall times of the PT15-21B/TR8?

Typical rise time is 15 ns and typical fall time is 15 ns under test conditions VCE=5V, IC=1mA, RL=1000Ω.

What is the maximum collector current?

The maximum collector current is 20 mA.

What is the collector dark current?

The maximum collector dark current is 100 nA at VCE=20V with no illumination.

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