HCPL-261A#500 Equivalent & Substitute Parts

Part Overview

The HCPL-261A#500 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This component provides 3750Vrms isolation with open collector Schottky clamped output, supporting data rates up to 10MBd. The part is currently discontinued at DiGi Electronics, making identification of suitable substitutes essential for ongoing production and maintenance applications.

Substiute Parts

HCPL-261A#500

Broadcom LimitedIn Stock: 845HCPL-261A#500 Datasheet

Current PartRFQ

HCPL-261A-500E

Broadcom LimitedIn Stock: 6011HCPL-261A-500E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HCPL-261A#500 is determined by strict equivalence across the following critical parameters:

• Isolation voltage: 3750Vrms
• Number of channels: 1
• Output configuration: Open Collector, Schottky Clamped
• Data rate capability: 10MBd minimum
• Common mode transient immunity: 1kV/µs minimum
• Supply voltage range: 4.5V ~ 5.5V
• Package type: 8-SMD, Gull Wing
• Operating temperature range: -40°C ~ 85°C

The HCPL-261A-500E meets all these criteria and is classified as a direct manufacturer substitute. The primary distinction is packaging format (Tape & Reel versus individual unit) and product status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The HCPL-261A-500E is the direct functional equivalent of the HCPL-261A#500. Both parts share identical electrical specifications, timing characteristics, and package geometry. The HCPL-261A-500E is currently in active production status with higher inventory availability.

For new designs or production restocking, the HCPL-261A-500E is the appropriate selection. This substitute offers the additional advantage of ROHS3 compliance, whereas the original HCPL-261A#500 is RoHS non-compliant. Both parts maintain identical isolation voltage, output current capability, and propagation delay specifications required for direct circuit substitution.

Frequently Asked Questions (FAQ)

Q: Can HCPL-261A-500E be used as a direct replacement for HCPL-261A#500 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The HCPL-261A-500E maintains the same 3750Vrms isolation, 10MBd data rate, 50mA output current, and 8-SMD Gull Wing package configuration. No circuit modifications are required.

Q: What is the difference between HCPL-261A#500 and HCPL-261A-500E?

A: The primary differences are packaging format (individual unit versus Tape & Reel), product status (Discontinued versus Active), and RoHS compliance (non-compliant versus ROHS3 compliant). Electrical and timing specifications are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts use the same 8-DIP Gull Wing package, support identical supply voltage ranges (4.5V ~ 5.5V), and operate across the same temperature range (-40°C ~ 85°C). Pin configuration and functional behavior are identical.

Q: Why is the HCPL-261A#500 discontinued?

A: The HCPL-261A#500 is discontinued at DiGi Electronics. The HCPL-261A-500E remains in active production as the current manufacturing variant.

Q: Does the ROHS3 compliance of HCPL-261A-500E affect circuit performance?

A: No. ROHS3 compliance is a material composition specification that does not alter electrical performance, timing characteristics, or isolation specifications. Both parts deliver identical functional performance.