HCPL3700WV Equivalent & Substitute Parts

Part Overview

The HCPL3700WV is a 2500Vrms optoisolator with Darlington output manufactured by onsemi in 8-DIP through-hole packaging. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The HCPL3700WV provides single-channel optical isolation suitable for AC and DC input applications with 30mA output current capability.

Substiute Parts

HCPL3700WV

onsemiIn Stock: 1235HCPL3700WV Datasheet

Current PartRFQ

HCPL-3760

Broadcom LimitedIn Stock: 4215HCPL-3760 Datasheet

SimilarRFQ

HCPL-3760-000E

Broadcom LimitedIn Stock: 9562HCPL-3760-000E Datasheet

SimilarRFQ

HCPL-3760-060E

Broadcom LimitedIn Stock: 859HCPL-3760-060E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL3700WV are qualified based on the following electrical and mechanical compatibility criteria:

Electrical Compatibility Parameters:

• Single-channel Darlington output optoisolator configuration
• AC and DC input type support
• Maximum output voltage of 20V
• Output current capability of 30mA per channel
• Operating temperature range of -40°C to 85°C
• Through-hole mounting technology

Mechanical Compatibility Parameters:

• 8-DIP package format
• Moisture Sensitivity Level 1 (Unlimited)

The substitute parts HCPL-3760, HCPL-3760-000E, and HCPL-3760-060E meet these criteria. While these Broadcom Limited components feature higher isolation voltage (3750Vrms versus 2500Vrms), they maintain identical electrical output specifications, input flexibility, and thermal operating range. The increased isolation rating provides enhanced performance margin without compromising functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-3760 series (HCPL-3760, HCPL-3760-000E, HCPL-3760-060E) represents the primary substitute option for the obsolete HCPL3700WV. All three variants are manufactured by Broadcom Limited and maintain active product status, ensuring long-term availability and supply chain continuity.

Compliance and Regulatory Considerations:

• All substitute parts are ROHS3 compliant, meeting current environmental regulations
• All parts maintain REACH Unaffected status, consistent with the original component
• ECCN classification remains EAR99 across all variants
• HTSUS code 8541.49.8000 applies uniformly

Functional Advantages of Substitutes:

• Higher isolation voltage rating (3750Vrms) provides increased safety margin over the original 2500Vrms specification
• Improved switching performance with faster turn-on time (4.5µs versus 6µs) and turn-off time (8µs versus 25µs)
• Faster rise time (14µs versus 45µs) supports higher-speed applications

Package Consideration: The substitute parts use a more compact 8-DIP package (0.300", 7.62mm) compared to the original (0.400", 10.16mm). This dimensional difference requires PCB layout verification to ensure mechanical fit within existing designs.

Frequently Asked Questions (FAQ)

Q: Can HCPL-3760 series parts directly replace HCPL3700WV in existing designs?

A: Electrical substitution is valid based on matching output specifications (20V maximum, 30mA per channel), identical input type support (AC/DC), and equivalent operating temperature range (-40°C to 85°C). However, the more compact package dimensions (0.300" versus 0.400" DIP width) require PCB layout verification to confirm mechanical compatibility.

Q: What is the difference between HCPL-3760, HCPL-3760-000E, and HCPL-3760-060E?

A: All three variants share identical electrical specifications and performance characteristics. The suffix designations (-000E and -060E) indicate different manufacturing or packaging configurations. Selection among these three should be based on inventory availability and supplier specifications.

Q: Why do the substitute parts have higher isolation voltage (3750Vrms versus 2500Vrms)?

A: The increased isolation rating is a design improvement in the Broadcom HCPL-3760 series. This higher specification provides enhanced electrical safety margin and does not negatively impact compatibility with applications designed for 2500Vrms isolation.

Q: Are there any performance differences between the original and substitute parts?

A: The substitute parts demonstrate improved switching performance with faster turn-on/turn-off times and rise times. These improvements are compatible with applications designed for the original HCPL3700WV and may provide performance benefits in timing-sensitive circuits.

Q: What compliance certifications apply to the substitute parts?

A: All HCPL-3760 series variants are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The EAR99 ECCN classification and HTSUS code 8541.49.8000 remain consistent with the original component.