HCPL-7720#300 Equivalent & Substitute Parts

Part Overview

The HCPL-7720#300 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. It provides 3750Vrms isolation with push-pull totem pole output configuration, supporting data rates up to 25MBd and common mode transient immunity of 10kV/µs. The part is currently discontinued at DiGi Electronics, making substitute part identification essential for ongoing production and maintenance applications.

Substiute Parts

HCPL-7720#300

Broadcom LimitedIn Stock: 823HCPL-7720#300 Datasheet

Current PartRFQ

HCPL-7720-300E

Broadcom LimitedIn Stock: 3851HCPL-7720-300E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-7720#300 is determined by strict equivalence across the following critical parameters:

• Number of Channels: 1
• Voltage - Isolation: 3750Vrms
• Common Mode Transient Immunity (Min): 10kV/µs
• Input Type: Logic
• Output Type: Push-Pull, Totem Pole
• Current - Output / Channel: 10 mA
• Data Rate: 25MBd
• Propagation Delay tpLH / tpHL (Max): 40ns, 40ns
• Rise / Fall Time (Typ): 9ns, 8ns
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SMD, Gull Wing
• Mounting Type: Surface Mount

The HCPL-7720-300E meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-7720-300E is the direct substitute for the HCPL-7720#300. Both parts share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the HCPL-7720#300 is discontinued, while the HCPL-7720-300E remains in active production with improved availability.

The HCPL-7720-300E offers an additional compliance advantage: it meets ROHS3 requirements, whereas the original part is RoHS non-compliant. This makes the substitute part suitable for applications with regulatory compliance requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can HCPL-7720-300E be used as a direct replacement for HCPL-7720#300?

A: Yes. The HCPL-7720-300E is electrically and mechanically identical to the HCPL-7720#300 across all specified parameters, including isolation voltage, data rate, propagation delay, output current, and package configuration.

Q: What is the difference between HCPL-7720#300 and HCPL-7720-300E?

A: The parts are functionally equivalent. The primary differences are product status (discontinued versus active) and RoHS compliance (non-compliant versus ROHS3 compliant). The HCPL-7720-300E is the current production variant.

Q: Are there any package or pinout differences?

A: No. Both parts use the same 8-SMD Gull Wing package with identical pinout and mounting configuration.

Q: Is the HCPL-7720-300E suitable for new designs?

A: Yes. The HCPL-7720-300E is the recommended part for new designs, as it is in active production and offers improved regulatory compliance through ROHS3 certification.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is based on equivalence in isolation voltage (3750Vrms), common mode transient immunity (10kV/µs), data rate (25MBd), output configuration (push-pull totem pole), output current (10 mA), propagation delay (40ns maximum), supply voltage range (4.5V to 5.5V), operating temperature range (-40°C to 85°C), and package type (8-SMD Gull Wing).