AJMRTC 20Pcs PT334-6C 5mm Phototransistor, 940nm NPN Infrared Phototransistor Clear Epoxy Lens for IR Receiver, Optical Sensing, Arduino DIY Electronic Project

AJMRTC PT334-6C phototransistor is a classic infrared receiving transistor in standard 5mm T-1 3/4 package. It adopts silicon epitaxial planar NPN structure. When 940nm infrared light hits the lens, the internal transistor turns on and the collector current rises with light intensity. The clear epoxy lens supports wide spectral response covering visible light and near infrared, and it works best paired with 940nm IR emitters. It requires an external load resistor to convert photocurrent into readable voltage signals for MCU or comparator chips. It is widely used in infrared receiving modules, photo interrupter circuits, reflective optical sensors, remote control signal reception, encoder detection and light trigger projects. It can cooperate with LM393 to make stable optical switch output. This package contains 20 phototransistors for multi-channel optical circuit testing and spare backup components.

Specifications

Brand: AJMRTC

Model: PT334-6C

Type: NPN Phototransistor

Lens: Clear Water-Clear Epoxy, 5mm Diameter

Peak Sensitive Wavelength: 940nm

Collector-Emitter Voltage Vceo: 30V Max

Max Collector Current Ic: 20mA

Power Dissipation: 75mW

Dark Current: 100nA

Pin Definition: Long Pin = Emitter, Short Pin = Collector

Mounting: Through Hole Radial Lead

Operating Temperature: -40 ~ +85

Compatible Controller: Arduino, ESP32, STM32

Application: Infrared Signal Reception, Optical Detection, Counter, Line Tracking Sensor, Electronic DIY Experiment

Package Quantity: 20 Pcs

Feature: Fast Response, High Sensitivity, Easy Soldering

Note: Pin polarity must be correct; reverse connection will lead to abnormal detection