HCPL-4701-320E Equivalent & Substitute Parts

Part Overview

The HCPL-4701-320E is an optoisolator with Darlington output manufactured by Broadcom Limited. This component provides 5000Vrms isolation in a single-channel configuration with 8-DIP Gull Wing surface mount packaging. The part is currently active in production with 996 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different manufacturers and packaging formats while preserving isolation voltage, output current capability, and thermal operating range specifications.

Substiute Parts

HCPL-4701-320E

Broadcom LimitedIn Stock: 1045HCPL-4701-320E Datasheet

Current PartRFQ

6N138SMT/R

Isocom Components 2004 LTDIn Stock: 31096N138SMT/R Datasheet

MFR RecommendedRFQ

6N139-X009

Vishay Semiconductor Opto DivisionIn Stock: 32576N139-X009 Datasheet

MFR RecommendedRFQ

6N139-X009T

Vishay Semiconductor Opto DivisionIn Stock: 10486N139-X009T Datasheet

MFR RecommendedRFQ

6N139-X017T

Vishay Semiconductor Opto DivisionIn Stock: 11456N139-X017T Datasheet

MFR RecommendedRFQ

6N139SMT&R

Isocom Components 2004 LTDIn Stock: 50036N139SMT&R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-4701-320E is determined by the following critical parameters:

• Voltage - Isolation: Minimum 5000Vrms (equal or greater)
• Output Type: Darlington with Base configuration
• Current - Output / Channel: 60mA capability
• Package / Case: 8-SMD, Gull Wing form factor
• Number of Channels: Single channel (1)
• Input Type: DC
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories based on isolation voltage specification:

Group A (5000Vrms Isolation): Parts meeting the exact isolation voltage requirement with compatible electrical and thermal characteristics.

Group B (5300Vrms Isolation): Parts exceeding the isolation voltage specification, providing enhanced isolation margin while maintaining all other functional requirements.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and ROHS3 compliance, meeting regulatory requirements equivalent to the HCPL-4701-320E.

6N138SMT/R (Isocom Components 2004 LTD): Meets 5000Vrms isolation specification with matching thermal operating range (0°C ~ 70°C). Maximum output voltage is 7V, which is lower than the primary part's 18V specification. Selection requires confirmation that application circuits operate within this reduced voltage ceiling. Available in Tape & Reel packaging with 3008 units in stock.

6N139-X009 (Vishay Semiconductor Opto Division): Exceeds isolation voltage at 5300Vrms with extended operating temperature range (-55°C ~ 100°C). Maintains 18V maximum output voltage and 60mA output current. Available in Tube packaging with 3206 units in stock.

6N139-X009T (Vishay Semiconductor Opto Division): Identical electrical specifications to 6N139-X009 with Tape & Reel packaging format. Extended temperature range and enhanced isolation voltage provide operational margin. 1004 units in stock.

6N139-X017T (Vishay Semiconductor Opto Division): Identical electrical specifications to 6N139-X009 and 6N139-X009T with Cut Tape and Digi-Reel® packaging. Extended temperature range and enhanced isolation voltage. 1106 units in stock.

6N139SMT&R (Isocom Components 2004 LTD): Meets 5000Vrms isolation specification with matching thermal operating range (0°C ~ 70°C). Maintains 18V maximum output voltage and 60mA output current. Available in Tape & Reel packaging with highest inventory at 4961 units.

Frequently Asked Questions (FAQ)

Q: Can 6N138SMT/R be used as a direct replacement for HCPL-4701-320E?

A: 6N138SMT/R is electrically compatible for isolation voltage and output current. However, its maximum output voltage is 7V compared to the HCPL-4701-320E's 18V. Substitution is valid only if the application circuit operates within the 7V output voltage limit.

Q: What is the difference between the Vishay 6N139 variants (6N139-X009, 6N139-X009T, 6N139-X017T)?

A: All three Vishay variants share identical electrical specifications: 5300Vrms isolation, 18V maximum output voltage, and -55°C ~ 100°C operating temperature. The differences are packaging formats: 6N139-X009 is supplied in Tube, 6N139-X009T in Tape & Reel, and 6N139-X017T in Cut Tape with Digi-Reel®.

Q: Are the Isocom 6N138SMT/R and 6N139SMT&R interchangeable?

A: Both are Isocom products with 5000Vrms isolation and 0°C ~ 70°C operating temperature. The 6N139SMT&R maintains the full 18V output voltage specification, while 6N138SMT/R is limited to 7V maximum output. Selection depends on application voltage requirements.

Q: Do the extended temperature range variants affect substitution eligibility?

A: The Vishay 6N139 series parts with -55°C ~ 100°C operating range are suitable substitutes for applications requiring the HCPL-4701-320E's 0°C ~ 70°C range. Extended temperature capability does not create incompatibility; it provides additional operational margin.

Q: What packaging considerations apply when selecting a substitute?

A: The HCPL-4701-320E is supplied in Tube packaging. Substitute parts are available in Tube, Tape & Reel, and Cut Tape formats. Packaging selection affects procurement quantities and handling procedures but does not alter electrical compatibility. Verify that your assembly process accommodates the selected packaging format.

Q: Is isolation voltage higher than 5000Vrms acceptable for this application?

A: Yes. The 6N139 series parts rated at 5300Vrms exceed the 5000Vrms requirement and are valid substitutes. Higher isolation voltage provides additional safety margin and does not create functional incompatibility.