HCPL-0720#060 Equivalent & Substitute Parts

Part Overview

The HCPL-0720#060 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This component provides 3750Vrms isolation with 25MBd data rate capability, push-pull totem pole output configuration, and 10kV/µs common mode transient immunity in an 8-SO surface mount package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

HCPL-0720#060

Broadcom LimitedIn Stock: 890HCPL-0720#060 Datasheet

Current PartRFQ

HCPL-0720-060E

Broadcom LimitedIn Stock: 1106HCPL-0720-060E Datasheet

DirectRFQ

FOD0710

Fairchild SemiconductorIn Stock: 19137FOD0710 Datasheet

MFR RecommendedRFQ

FOD0710R2

onsemiIn Stock: 3727FOD0710R2 Datasheet

MFR RecommendedRFQ

FOD0720

Fairchild SemiconductorIn Stock: 5469FOD0720 Datasheet

MFR RecommendedRFQ

FOD0720R2

Fairchild SemiconductorIn Stock: 3747FOD0720R2 Datasheet

MFR RecommendedRFQ

FOD0721

onsemiIn Stock: 1997FOD0721 Datasheet

MFR RecommendedRFQ

FOD0721R2

onsemiIn Stock: 3926FOD0721R2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-0720#060 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Isolation: 3750Vrms (exact match required)
• Number of Channels: 1 (exact match required)
• Input Type: Logic (exact match required)
• Output Type: Push-Pull, Totem Pole (exact match required)
• Current - Output / Channel: 10 mA (exact match required)
• Voltage - Supply: 4.5V ~ 5.5V (exact match required)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (exact match required)
• Mounting Type: Surface Mount (exact match required)

Secondary Substitution Criteria (Performance Parameters):

• Data Rate: 25MBd or higher acceptable
• Common Mode Transient Immunity (Min): 10kV/µs or higher acceptable
• Propagation Delay tpLH / tpHL (Max): 40ns or lower acceptable
• Operating Temperature: Must encompass -40°C ~ 85°C minimum

Substitute parts meeting all primary criteria and maintaining or exceeding secondary performance parameters are classified as direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Broadcom Equivalent: HCPL-0720-060E is the primary substitute for HCPL-0720#060. Both are Broadcom Limited products with identical electrical specifications, isolation voltage, channel configuration, and output characteristics. HCPL-0720-060E is currently active in production and ROHS3 compliant, addressing the discontinued status of the original part while maintaining full functional compatibility.

Tier 2 - Cross-Manufacturer 25Mbps Equivalents: FOD0720, FOD0720R2, FOD0721, and FOD0721R2 are functionally equivalent alternatives from Fairchild Semiconductor and onsemi. These parts maintain all primary substitution criteria and offer enhanced performance characteristics: 20kV/µs common mode transient immunity (versus 10kV/µs), faster rise/fall times (5ns/4.5ns versus 9ns/8ns), and extended operating temperature range (-40°C ~ 100°C). All are ROHS3 compliant and actively produced. Packaging variants include bulk, tube, and tape & reel options.

Tier 3 - 12.5Mbps Alternative: FOD0710 and FOD0710R2 meet all primary substitution criteria but operate at 12.5Mbps data rate, half the speed of the original part. These are suitable only for applications where 12.5Mbps bandwidth is sufficient. Both offer 20kV/µs CMTI and extended temperature range. FOD0710R2 is ROHS3 compliant.

Compliance Consideration: The original HCPL-0720#060 is RoHS non-compliant. Designs requiring RoHS3 compliance must transition to HCPL-0720-060E or the cross-manufacturer alternatives (FOD0720R2, FOD0721, FOD0721R2).

Frequently Asked Questions (FAQ)

Q: Can FOD0710 or FOD0710R2 replace HCPL-0720#060 in all applications? A: FOD0710 and FOD0710R2 are functionally compatible at the electrical interface level but operate at 12.5Mbps versus 25MBd. They are suitable only for applications where the lower data rate meets system requirements. All other electrical parameters, isolation voltage, output configuration, and package dimensions are identical.

Q: What is the difference between HCPL-0720-060E and FOD0720R2? A: Both are 25Mbps push-pull optoisolators with 3750Vrms isolation in 8-SOIC packages. HCPL-0720-060E is manufactured by Broadcom Limited and maintains the original part's design lineage. FOD0720R2 is manufactured by Fairchild Semiconductor and offers enhanced common mode transient immunity (20kV/µs versus 10kV/µs) and faster switching characteristics. Both are ROHS3 compliant and actively produced.

Q: Are packaging variants (tube, tape & reel, bulk) electrically equivalent? A: Yes. Packaging variants such as HCPL-0720-060E (tube), FOD0720 (bulk), FOD0720R2 (bulk), FOD0721 (tube), and FOD0721R2 (tape & reel) contain identical die and electrical specifications. Packaging selection is determined by production volume requirements and handling procedures, not electrical performance.

Q: Why do substitute parts show 20kV/µs CMTI instead of 10kV/µs? A: The cross-manufacturer alternatives (FOD series) are enhanced designs offering superior common mode transient immunity. This higher specification is a performance advantage and does not affect compatibility. Applications designed for 10kV/µs CMRI operate without modification with 20kV/µs parts.

Q: Is the extended operating temperature range (-40°C ~ 100°C) of FOD series parts a compatibility concern? A: No. The extended range is a performance advantage. Applications operating within -40°C ~ 85°C function identically with parts rated to -40°C ~ 100°C. The wider specification provides additional design margin.

Q: Which substitute part should be selected for new designs? A: For new designs, HCPL-0720-060E or FOD0720R2 are recommended. HCPL-0720-060E maintains Broadcom lineage and is ROHS3 compliant. FOD0720R2 offers enhanced performance specifications and is actively produced by onsemi with ROHS3 compliance. Both are functionally interchangeable with the original part.