HCPL-0370-500 Equivalent & Substitute Parts

Part Overview

The HCPL-0370-500 is a single-channel optoisolator with Darlington output, rated for 3750Vrms isolation voltage. This component is designed for applications requiring galvanic isolation with AC or DC input capability and a maximum output current of 30mA per channel. The part is currently discontinued at DiGi Electronics, making identification of suitable alternatives essential for ongoing design support and production continuity.

Substiute Parts

HCPL-0370-500

Broadcom LimitedIn Stock: 1108HCPL-0370-500 Datasheet

Current PartRFQ

HCPL-0370-500E

Broadcom LimitedIn Stock: 1240HCPL-0370-500E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HCPL-0370-500 is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 3750Vrms (exact match required)
• Number of Channels: 1 (single-channel configuration)
• Output Type: Darlington (specific output stage topology)
• Maximum Output Voltage: 20V
• Maximum Output Current: 30mA per channel
• Input Type Compatibility: AC and DC input capability
• Switching Characteristics: Turn-on/turn-off times of 4µs and 10µs; rise/fall times of 20µs and 0.3µs
• Package: 8-SOIC form factor with 0.154" (3.90mm) width
• Temperature Range: -40°C to 85°C operating window

The HCPL-0370-500E qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-0370-500E is the direct substitute for the HCPL-0370-500. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The primary distinction is product status: the original part is discontinued, while the HCPL-0370-500E remains in active production with current inventory availability.

An additional consideration is regulatory compliance. The HCPL-0370-500E carries ROHS3 compliance certification, whereas the original HCPL-0370-500 is RoHS non-compliant. For applications subject to RoHS requirements, the HCPL-0370-500E provides the necessary compliance pathway while maintaining full electrical and mechanical equivalence.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-0370-500E be used as a direct replacement for the HCPL-0370-500?

A: Yes. The HCPL-0370-500E is electrically and mechanically identical to the HCPL-0370-500 across all specified parameters, including isolation voltage, output characteristics, switching times, and package form factor. No circuit modifications are required.

Q: What is the primary reason to transition from HCPL-0370-500 to HCPL-0370-500E?

A: The HCPL-0370-500 is discontinued at DiGi Electronics. The HCPL-0370-500E is the active production equivalent, ensuring continued supply chain access and design support.

Q: Are there compliance differences between these parts?

A: Yes. The HCPL-0370-500E is ROHS3 compliant, while the original HCPL-0370-500 is RoHS non-compliant. For applications requiring RoHS certification, the HCPL-0370-500E satisfies regulatory requirements.

Q: Do both parts use the same package and pinout?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. Pinout and PCB footprint compatibility are guaranteed.

Q: What is the isolation voltage rating for these optoisolators?

A: Both parts are rated for 3750Vrms isolation voltage, providing galvanic isolation suitable for high-voltage applications.

Q: Can these parts handle both AC and DC input signals?

A: Yes. Both the HCPL-0370-500 and HCPL-0370-500E accept AC and DC input types, providing flexibility in signal conditioning applications.