Mfr Part #:

BPX43

Mfr Name: Vishay

The Vishay Dale BPX43 is a highly sensitive silicon NPN phototransistor designed for linear applications. It features a hermetically sealed TO-18 metal case with a lens window.

✓ Total Stock: 4,342 pcs

$ Price Range: $1.17

BPX43 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	4,342 pcs On Request	4342 pcs	On Request	1	On Request	On Request	15+	On Request	On Request

BPX43 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Vishay
Junction Temperature	125 °C
Mounting Type	Through Hole
Operating Temperature Range	–55...+125 °C

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BPX43 Description

Short technical summary and product information.

The BPX43 from Vishay Dale is a silicon NPN epitaxial planar phototransistor housed in a standard TO-18 hermetically sealed metal case with a glass lens. Its superior linearity of photocurrent versus irradiation makes it suitable for linear applications. A base terminal is available for biasing and sensitivity control.

Key electrical characteristics include a collector-emitter breakdown voltage of 70V, a collector current of up to 50mA, and a peak collector current of 200mA. The phototransistor exhibits high photo sensitivity and linearity, with a peak sensitivity wavelength of 920 nm and a spectral bandwidth range of 630-1040 nm. The angle of half sensitivity is ±15 degrees.

This phototransistor is designed for detector applications in analogue and digital circuits within industrial electronics, measuring, and control systems. Examples include long-range light barriers, optical switches, and alarm systems. The device operates over a wide temperature range of -55°C to +125°C.

The BPX43 is packaged in a TO-18 case and is suitable for through-hole mounting.

BPX43 Quick Information

Product Type: Phototransistor

Canonical Name: BPX43 Silicon NPN Phototransistor

Subcategory: NPN

BPX43 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BPX43 Estimated Pricing

Qty	Low	High
1+	$1.17	$1.17

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

BPX43 Features

Highly sensitive silicon NPN phototransistor.
Hermetically sealed TO-18 metal case.
Superior linearity of photocurrent vs. irradiation.
Suitable for visible and near infrared radiation.
Base terminal available for sensitivity control.

BPX43 Applications

Detector for analogue and digital applications.
Used in industrial electronics and control.
Ideal for light barriers and optical switches.
Suitable for alarm systems.

BPX43 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the package type of the BPX43?

The BPX43 is packaged in a TO-18 metal can with through-hole mounting.

What is the operating temperature range of the BPX43?

The operating temperature range is -55°C to +125°C.

What is the collector-emitter breakdown voltage of the BPX43?

The minimum collector-emitter breakdown voltage is 70 V at IC = 1 mA.

What is the peak wavelength sensitivity of the BPX43?

The peak wavelength sensitivity is 920 nm (typical).

What is the collector light current of the BPX43?

The typical collector light current is 0.8 mA at Ee = 0.5 mW/cm², λ = 950 nm, VCE = 5 V.

What is the angle of half sensitivity?

The angle of half sensitivity is ±15 degrees (typical).

What is the collector-emitter saturation voltage of the BPX43?

The typical collector-emitter saturation voltage is 0.15 V, with a maximum of 0.3 V at Ee = 0.5 mW/cm², λ = 950 nm, IC = 0.1 mA.