HCPL-070A#500 Equivalent & Substitute Parts

Part Overview

The HCPL-070A#500 is an optoisolator with Darlington output and base connection, manufactured by Broadcom Limited. This component provides 3750Vrms isolation voltage in a single-channel configuration with 8-SOIC surface mount packaging. The part is currently active in production and widely used in industrial isolation applications requiring high voltage isolation and DC input control.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the allowed parameter ranges for optoisolator components. Alternatives may be required due to packaging availability, compliance requirements, or inventory considerations.

Substiute Parts

HCPL-070A#500

Broadcom LimitedIn Stock: 1074HCPL-070A#500 Datasheet

Current PartRFQ

HCPL-070A-500E

Broadcom LimitedIn Stock: 6475HCPL-070A-500E Datasheet

Parametric EquivalentRFQ

HCPL0701

onsemiIn Stock: 1797HCPL0701 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-070A#500 are classified based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

• Single-channel Darlington output with base connection
• 8-SOIC surface mount package (0.154", 3.90mm width)
• DC input type
• Maximum output voltage of 18V
• Output current capability of 60mA per channel
• Isolation voltage rating (minimum 2500Vrms acceptable for certain applications)
• Current transfer ratio performance window

Parametric Equivalent (HCPL-070A-500E): Identical electrical specifications and isolation voltage (3750Vrms) with different packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Manufacturer Recommended Alternative (HCPL0701): Different manufacturer (onsemi) with reduced isolation voltage (2500Vrms) and modified current transfer ratio specifications. Acceptable only where lower isolation voltage meets application requirements.

Parameter Comparison

Engineering Selection Recommendations

HCPL-070A-500E (Parametric Equivalent): Direct functional replacement for HCPL-070A#500. Identical electrical specifications and isolation voltage. Selection between these parts is determined by packaging and supply chain requirements. HCPL-070A-500E offers ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain the same operating temperature range (0°C to 70°C) and identical current transfer ratio performance.

HCPL0701 (Manufacturer Recommended Alternative): Acceptable as a substitute only in applications where the reduced isolation voltage of 2500Vrms meets system requirements. This part offers extended operating temperature range (-40°C to 85°C) and faster switching response (300ns turn-on, 1.6µs turn-off). The current transfer ratio specifications differ significantly, with lower minimum and maximum values. HCPL0701 is ROHS3 compliant. Selection of this alternative requires verification that the lower isolation voltage and modified transfer ratio characteristics are compatible with the target application.

Frequently Asked Questions (FAQ)

Q: Can HCPL-070A-500E be used as a direct replacement for HCPL-070A#500?

A: Yes. Both parts are manufactured by Broadcom Limited with identical electrical specifications, isolation voltage (3750Vrms), current transfer ratio performance, and package dimensions (8-SOIC). The difference is packaging format: HCPL-070A#500 is supplied in Tape & Reel, while HCPL-070A-500E is supplied in Cut Tape & Digi-Reel®. HCPL-070A-500E provides the additional benefit of ROHS3 compliance.

Q: What are the key differences between HCPL-070A#500 and HCPL0701?

A: The primary differences are isolation voltage (3750Vrms versus 2500Vrms), current transfer ratio specifications (600-8000% @ 500µA versus 500-2600% @ 1.6mA), switching speed (3µs/34µs versus 300ns/1.6µs), and operating temperature range (0-70°C versus -40-85°C). HCPL0701 is manufactured by onsemi rather than Broadcom Limited.

Q: Is HCPL0701 suitable for applications requiring 3750Vrms isolation?

A: No. HCPL0701 provides only 2500Vrms isolation voltage. This part is acceptable only for applications where the lower isolation rating meets system requirements. Applications requiring 3750Vrms isolation must use HCPL-070A#500 or HCPL-070A-500E.

Q: Are all three parts compatible with the same PCB layout?

A: Yes. All three parts use the 8-SOIC package with identical pin configuration and 0.154" (3.90mm) width. PCB footprints are interchangeable.

Q: What is the difference in RoHS compliance between these parts?

A: HCPL-070A#500 is RoHS non-compliant. Both HCPL-070A-500E and HCPL0701 are ROHS3 compliant. Applications subject to RoHS requirements must use either HCPL-070A-500E or HCPL0701.

Q: Which part should be selected for new designs?

A: Selection depends on isolation voltage requirements and compliance mandates. For applications requiring 3750Vrms isolation with RoHS3 compliance, HCPL-070A-500E is the appropriate choice. For applications where 2500Vrms isolation is sufficient and extended temperature range is beneficial, HCPL0701 may be considered.