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1.9mm Phototransistors Top View SMD IR LED 940nm 65mA

Everlight Electronics

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SKU:
012-PT91-21B-TR7-XY
MPN:
PT91-21B/TR7(XY)
PT91-21B/TR7(XY) 1.9mm SMD infrared phototransistor with gull-wing leads
Quantity
Unit Price (ex. GST)
1 - 9
₹ 8.87
10 - 99
₹ 7.98
100 or above
₹ 7.10
1.9mm SMD phototransistor with gull-wing leads, high photo sensitivity, fast response time, and 940nm peak sensitivity. Ideal for miniature switches, counters, position sensors, and infrared detection systems. View full description
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Technical Specifications

Brand:
Everlight Electronics
Package/Case:
Gull Wing SMD/SMT
Mounting Style:
SMD/SMT
Peak Wavelength:
940 nm
Maximum On-State Collector Current:
20 mA
Voltage:
30 V
Collector-Emitter Saturation Voltage:
400 mV
Power Dissipation:
75 mW
Minimum Operating Temperature:
- 25 C
Maximum Operating Temperature:
+ 85 C
Angle:
35 deg
Lens Color:
Black

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:

Datasheet

1.9mm SMD Phototransistor with Gull-Wing Leads and 940nm Peak Sensitivity for Infrared Detection

The PT91-21B/TR7(XY) is a compact 1.9 mm round subminiature phototransistor from Everlight, designed for reliable infrared detection in space-constrained PCB layouts. Packaged in a black moulded SMD body with a spherical top-view lens and gull-wing leads, this device offers high photo sensitivity and fast response time, making it well matched to 940 nm infrared emitting diodes commonly used in sensing systems.

Optimised for automated reflow soldering, the PT91-21B/TR7(XY) features low junction capacitance and stable electrical characteristics across a wide operating temperature range. Its spectral response from 730 nm to 1100 nm ensures compatibility with a wide range of infrared sources, while the small footprint and tape-and-reel packaging support high-volume SMT production in industrial and consumer electronics.

Key Features:

  • High Photo Sensitivity: Reliable detection of infrared light sources
  • Fast Response Time: Suitable for switching and counting applications
  • 940nm Peak Sensitivity: Optimised for standard IR emitters
  • Compact SMD Package: 1.9 mm round subminiature design
  • Gull-Wing Leads: Stable solder joints and easy PCB inspection
  • Low Junction Capacitance: Improved signal response
  • Reflow Compatible: Supports infrared and vapour phase reflow soldering
  • Environmental Compliance: RoHS, REACH, halogen-free

Applications

  • Miniature Optical Switches: Object and position detection
  • Counters and Sorters: Industrial sensing systems
  • Position Sensors: Motion and alignment detection
  • Infrared Applied Systems: Paired with IR LEDs for sensing

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