HCPL-2731 Equivalent & Substitute Parts

Part Overview

The HCPL-2731 is a 2-channel optoisolator with Darlington output, rated for 3750Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits with high current transfer capability. The part is currently in active production status. Substitute parts may be required due to packaging preferences, compliance requirements, or inventory availability across different distribution channels.

Substiute Parts

HCPL-2731

Broadcom LimitedIn Stock: 1376HCPL-2731 Datasheet

Current PartRFQ

HCPL-2731-000E

Broadcom LimitedIn Stock: 1242HCPL-2731-000E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HCPL-2731-000E is a parametric equivalent to the HCPL-2731. Substitution is valid based on the following criteria:

All electrical parameters are identical:

• 2-channel configuration with Darlington output
• 3750Vrms isolation voltage
• Current transfer ratio range: 500% to 2600% @ 1.6mA
• Turn on/off timing: 5µs, 10µs
• Maximum output voltage: 18V
• Output current per channel: 60mA
• Forward voltage and saturation characteristics match exactly

Both parts share:

• Identical package specification: 8-DIP (0.300", 7.62mm)
• Through-hole mounting type
• DC input type
• Same base product number designation

The primary difference is packaging format (Tube vs. standard packaging) and compliance certification status.

Parameter Comparison

Engineering Selection Recommendations

Both HCPL-2731 and HCPL-2731-000E are functionally equivalent for circuit design purposes. Selection between these parts should be based on the following factors:

HCPL-2731 is suitable for applications where RoHS compliance is not a requirement and standard packaging is acceptable.

HCPL-2731-000E is the appropriate choice for designs requiring ROHS3 compliance certification. This variant is supplied in Tube packaging format.

Both parts maintain identical electrical performance, isolation ratings, and thermal operating ranges. The choice between them does not affect circuit functionality or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can HCPL-2731-000E be used as a direct replacement for HCPL-2731 in existing designs?

A: Yes. All electrical parameters, isolation voltage, current transfer ratios, output characteristics, and package dimensions are identical. The parts are pin-compatible and functionally interchangeable.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format (Tube for the -000E variant) and RoHS compliance status. The HCPL-2731-000E meets ROHS3 requirements, while the standard HCPL-2731 does not. All electrical specifications are identical.

Q: Are there any thermal or operating condition differences?

A: No. Both parts operate across the same temperature range (0°C to 70°C) and have identical thermal characteristics.

Q: Does the packaging format affect circuit performance?

A: No. Tube packaging is a distribution and handling format only. It does not affect the electrical performance or reliability of the component when properly installed.

Q: Which part should be selected for new designs?

A: Selection depends on compliance requirements. For designs requiring ROHS3 certification, use HCPL-2731-000E. For applications without RoHS requirements, either part is acceptable based on availability and packaging preference.