HCPL-3760#500 Equivalent & Substitute Parts

Part Overview

The HCPL-3760#500 is an optoisolator with Darlington output manufactured by Broadcom Limited, designed for AC/DC logic interface applications requiring high-voltage isolation. This component provides 3750Vrms isolation in a single-channel configuration with 8-DIP Gull Wing surface mount packaging. The part is currently active in production with 1064 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, particularly when packaging format or compliance status differs from the original specification.

Substiute Parts

HCPL-3760#500

Broadcom LimitedIn Stock: 1129HCPL-3760#500 Datasheet

Current PartRFQ

HCPL-3760-500E

Broadcom LimitedIn Stock: 4389HCPL-3760-500E Datasheet

DirectRFQ

HCPL3700S

Fairchild SemiconductorIn Stock: 1230HCPL3700S Datasheet

MFR RecommendedRFQ

HCPL3700SDV

Fairchild SemiconductorIn Stock: 773HCPL3700SDV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-3760#500 are classified based on alignment with the following critical parameters:

Direct Substitutes (Identical Electrical Performance): Parts maintaining 3750Vrms isolation voltage, 1-channel Darlington output, 30mA output current, 20V maximum output voltage, and compatible timing specifications (4.5µs turn-on, 8µs turn-off, 14µs rise time, 0.4µs fall time) qualify as direct substitutes. Packaging format variations (Tape & Reel vs. Cut Tape) do not affect electrical compatibility.

Functional Alternatives (Reduced Isolation Voltage): Parts with 2500Vrms isolation voltage represent functional alternatives when application isolation requirements permit lower voltage ratings. These maintain identical channel count, output type, current capacity, and temperature range, but operate at reduced isolation specification.

Compliance Variations: RoHS compliance status and packaging format differences are documented but do not affect core electrical substitutability when isolation voltage and output characteristics remain compatible.

Parameter Comparison

Engineering Selection Recommendations

HCPL-3760-500E (Broadcom Limited): This part is a direct electrical equivalent to the HCPL-3760#500, maintaining identical isolation voltage (3750Vrms), timing characteristics, and output specifications. The primary distinction is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and RoHS3 compliance status. Selection of this part is appropriate when ROHS3 compliance is required or when Cut Tape packaging format aligns with procurement workflows. Current inventory of 4300 units exceeds the main part availability.

HCPL3700S (Fairchild Semiconductor): This part operates at reduced isolation voltage (2500Vrms) compared to the HCPL-3760#500. Timing characteristics differ, with slower turn-on (6µs vs. 4.5µs), extended turn-off (25µs vs. 8µs), and increased rise time (45µs vs. 14µs). Selection is appropriate only when application isolation requirements do not exceed 2500Vrms and timing performance permits the specified delays.

HCPL3700SDV (Fairchild Semiconductor): This part shares identical electrical limitations with HCPL3700S, including 2500Vrms isolation voltage and extended timing characteristics. Selection follows the same criteria as HCPL3700S, with consideration for packaging format and compliance documentation availability.

Frequently Asked Questions (FAQ)

Q: Can HCPL-3760-500E replace HCPL-3760#500 in all applications?

A: Yes, HCPL-3760-500E maintains identical electrical specifications including 3750Vrms isolation voltage, 1-channel Darlington output, 30mA current capacity, and timing characteristics. Packaging format differs (Cut Tape & Digi-Reel® versus Tape & Reel), and RoHS3 compliance status is upgraded. No circuit modifications are required.

Q: What is the primary limitation of HCPL3700S and HCPL3700SDV as substitutes?

A: Both parts operate at 2500Vrms isolation voltage, which is 1250Vrms lower than the HCPL-3760#500. Additionally, timing performance is degraded: turn-on time increases from 4.5µs to 6µs, turn-off time extends from 8µs to 25µs, and rise time increases from 14µs to 45µs. These parts are suitable only when application isolation requirements permit 2500Vrms operation and timing delays are acceptable.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All parts specified use 8-SMD Gull Wing surface mount packaging with identical mechanical dimensions. PCB footprint compatibility is maintained across all substitute options.

Q: What compliance differences exist between the main part and substitutes?

A: HCPL-3760#500 is RoHS non-compliant. HCPL-3760-500E achieves ROHS3 compliance. HCPL3700S and HCPL3700SDV compliance status is not specified in available documentation. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating or equivalent.

Q: Which substitute offers the best inventory availability?

A: HCPL-3760-500E provides 4300 units in stock, exceeding HCPL-3760#500 (1064 units), HCPL3700S (1213 units), and HCPL3700SDV (746 units).

Q: Can HCPL3700S or HCPL3700SDV be used in high-voltage isolation applications?

A: No. These parts are rated for 2500Vrms isolation, which is insufficient for applications requiring 3750Vrms isolation. Use HCPL-3760#500 or HCPL-3760-500E for high-voltage isolation requirements.