BPX81-2 The Siemens BPX81-2 is a phototransistor designed for optoelectronic applications. It features a sensitivity wavelength of 850nm and operates within a temperature range of -40 to 80°C.
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BPX81-2

Available from 2 distributors
Mfr Name: Siemens
Siemens
The Siemens BPX81-2 is a phototransistor designed for optoelectronic applications. It features a sensitivity wavelength of 850nm and operates within a temperature range of -40 to 80°C.
Total Stock: 18 pcs
$ Price Range: $0.99

BPX81-2 Available from 2 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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12 pcs
12 pcs On Request 1 On Request On Request On Request On Request On Request
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6 pcs
6 pcs On Request 6 On Request On Request On Request On Request On Request

BPX81-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BPX81-2 Description

Short technical summary and product information.

The Siemens BPX81-2 is a single-channel phototransistor with a round shape and a 2 mm size. It is designed to detect infrared light, with a peak sensitivity wavelength of 850 nm. This component offers a nominal light current of 1900 mA and a maximum collector dark current of 50 nA.

 

The operating temperature range for the BPX81-2 is from -40°C to 80°C, making it suitable for various environmental conditions. The terminal finish is TIN, and it comes in a plastic package.

 

This phototransistor is RoHS3 compliant and meets China RoHS and EU RoHS standards. Its configuration is single, and it is identified as an optoelectronic device type: PHOTO TRANSISTOR.

BPX81-2 Quick Information

Product Type: Phototransistor
Canonical Name: Siemens BPX81-2 Phototransistor
Subcategory: Optoisolators - Triac, SCR Output

BPX81-2 Compliance

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

BPX81-2 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BPX81-2 Features

  • 850nm peak sensitivity wavelength.
  • 1900mA nominal light current.
  • -40 to 80°C operating temperature range.
  • 50 nA maximum collector dark current.
  • Single channel phototransistor.

BPX81-2 Applications

  • Used in signal isolation circuits
  • Suitable for switching applications
  • Ideal for control system interfaces
  • PCB mountable in compact spaces

BPX81-2 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the peak sensitivity wavelength of the BPX81-2?

The peak sensitivity wavelength is 850 nm.

What is the operating temperature range for the BPX81-2?

The operating temperature range is -40°C to 80°C.

What is the nominal light current of the BPX81-2?

The nominal light current is 1900 mA.

What is the maximum collector dark current?

The maximum collector dark current is 50 nA.

Is the BPX81-2 RoHS compliant?

Yes, it is RoHS3 Compliant.

BPX81-2 Alternate Parts

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BPX81-3
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The Siemens BPX81-3 is a phototransistor with a peak sensitivity wavelength of 850 nm. It operates within a temperature range of -40°C to 80°C.
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555-2001F
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The Dialight 555-2001F is a red, single-color LED with a 2 mm size and a radial mount. It operates with a maximum forward current of 50 mA.
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LD242-2
LD242-2
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The Siemens LD242-2 is an infrared LED with a peak wavelength of 950nm. It features a TO-18 package and is RoHS3 compliant.
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