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TEFT4300 The Vishay Dale TEFT4300 is a silicon NPN phototransistor in a T-1 package. It offers high radiant sensitivity and a daylight blocking filter matched with 940 nm IR emitters.
Mfr Part #:

TEFT4300

Available from 3 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale TEFT4300 is a silicon NPN phototransistor in a T-1 package. It offers high radiant sensitivity and a daylight blocking filter matched with 940 nm IR emitters.
✓ Total Stock: 3,071,100 pcs
$ Price Range: $1.32

TEFT4300 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
3,070,000 pcs
On Request
3070000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
Spartce Electronics. ✓
Non-Authorised Inventory information
100 pcs
On Request
100 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TEFT4300 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Junction Temperature
Lead Style
Mounting Type
Operating Temperature Range
Power Dissipation
SVHC Present
Tape & Reel
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TEFT4300 Description

Short technical summary and product information.

The Vishay Dale TEFT4300 is a silicon NPN phototransistor designed for applications requiring high radiant sensitivity. It comes in a T-1 plastic package with a daylight blocking filter, specifically matched to 940 nm IR emitters.

 

Key electrical characteristics include a collector emitter voltage of 70V, a collector current of 50mA, and a collector peak current of 100mA. The device operates within a temperature range of -40°C to +100°C and has a junction temperature limit of 100°C.

 

This phototransistor features a fast response time and an angle of half sensitivity of ±30°. Its peak wavelength sensitivity ranges from 875 nm to 1000 nm. The TEFT4300 is suitable for various optical sensing applications such as optical switches, counters, sorters, interrupters, encoders, and position sensors.

 

The component is housed in a leaded T-1 package with dimensions of Ø 3 mm. It is available in bulk packaging with a minimum order quantity of 5000 pieces.

TEFT4300 Quick Information

Product Type: Phototransistor
Canonical Name: Vishay Dale TEFT4300 Silicon NPN Phototransistor
Subcategory: Phototransistor

TEFT4300 Compliance

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

TEFT4300 Estimated Pricing

Qty Low High
1+ $1.32 $1.32

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

TEFT4300 Features

  • Silicon NPN phototransistor
  • T-1 plastic package
  • High radiant sensitivity
  • Daylight blocking filter
  • Fast response times

TEFT4300 Applications

  • Optical switches
  • Counters and sorters
  • Interrupters
  • Encoders
  • Position sensors

TEFT4300 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the collector emitter voltage for the TEFT4300?

The collector emitter voltage (V CEO) is 70 V.

What is the operating temperature range of the TEFT4300 phototransistor?

The operating temperature range is -40 to +100 °C.

What is the peak wavelength sensitivity of the TEFT4300?

The peak wavelength sensitivity (λ0.5) ranges from 875 to 1000 nm.

What is the package type for the TEFT4300?

The TEFT4300 is supplied in a T-1 plastic package.

What is the standard package quantity for the TEFT4300?

The standard package quantity is 5000 pieces.

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