HCPL-0708-560E Equivalent & Substitute Parts

Part Overview

The HCPL-0708-560E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed isolation applications requiring 3750Vrms isolation voltage and 10kV/µs common mode transient immunity. This component operates at 15MBd data rate with push-pull totem pole output configuration in an 8-SO tall package.

The HCPL-0708-560E is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

HCPL-0708-560E

Broadcom LimitedIn Stock: 917HCPL-0708-560E Datasheet

Current PartRFQ

ACPL-M75L-560E

Broadcom LimitedIn Stock: 695ACPL-M75L-560E Datasheet

MFR RecommendedRFQ

ACPL-071L-560E

Broadcom LimitedIn Stock: 1069ACPL-071L-560E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HCPL-0708-560E is determined by the following critical parameters that must remain constant or improve:

• Voltage - Isolation: 3750Vrms (mandatory match)
• Common Mode Transient Immunity: 10kV/µs (mandatory match)
• Output Type: Push-Pull, Totem Pole (mandatory match)
• Data Rate: 15MBd (mandatory match)
• Number of Channels: 1 (mandatory match)
• Input Type: DC (mandatory match)

Substitute parts are grouped into two categories based on package compatibility:

Category 1 - Direct Package Replacement (8-SO Tall): ACPL-071L-560E maintains identical package footprint and pinout, enabling direct board-level substitution without layout modifications.

Category 2 - Compact Package Alternative (5-SO): ACPL-M75L-560E provides equivalent electrical performance in a smaller 5-SO package, requiring PCB layout redesign but offering space optimization benefits.

Parameter Comparison

Engineering Selection Recommendations

ACPL-071L-560E is the primary substitute for direct replacement applications. This part maintains identical package geometry (8-SO Tall) and pinout compatibility with the HCPL-0708-560E, eliminating the need for PCB redesign. The ACPL-071L-560E is in active production status with ROHS3 compliance, providing long-term supply assurance. Performance improvements include reduced propagation delay (50ns versus 60ns) and increased output current capability (10mA versus 2mA), making it functionally superior while maintaining full electrical compatibility.

ACPL-M75L-560E is suitable for applications where PCB space optimization is prioritized. This substitute operates in a compact 5-SO package while maintaining all critical isolation and transient immunity specifications. The ACPL-M75L-560E supports dual supply voltage ranges (3V ~ 3.6V and 4.5V ~ 5.5V), offering additional design flexibility. However, package redesign and PCB layout modification are required for implementation.

Both substitute parts are ROHS3 compliant and carry identical REACH and ECCN classifications as the original component, ensuring regulatory consistency.

Frequently Asked Questions (FAQ)

Q: Can ACPL-071L-560E be used as a direct drop-in replacement for HCPL-0708-560E?

A: Yes. ACPL-071L-560E maintains identical 8-SO Tall package footprint, pinout, and all critical electrical parameters (3750Vrms isolation, 10kV/µs CMTI, 15MBd data rate, push-pull output). No PCB modifications are required.

Q: What are the key differences between ACPL-071L-560E and ACPL-M75L-560E?

A: The primary difference is package format. ACPL-071L-560E uses 8-SO Tall (identical to original), while ACPL-M75L-560E uses 5-SO (compact). ACPL-M75L-560E has faster rise/fall times (4.6ns versus 20ns/25ns) and lower maximum forward current (10mA versus 20mA). Both maintain equivalent isolation voltage, CMTI, and data rate specifications.

Q: Are there supply voltage compatibility concerns when substituting?

A: The HCPL-0708-560E operates at 4.5V ~ 5.5V. Both substitute parts support this range. ACPL-071L-560E and ACPL-M75L-560E additionally support 3V ~ 3.6V operation, providing expanded supply flexibility without compatibility issues.

Q: What is the impact of the ACPL-M75L-560E's 5-SO package on circuit design?

A: The 5-SO package requires PCB layout redesign due to different pin count and physical dimensions compared to the 8-SO Tall package. Schematic modifications may be necessary to accommodate the reduced pin configuration. Electrical performance remains equivalent for the specified application parameters.

Q: Are both substitute parts suitable for new production designs?

A: Yes. Both ACPL-071L-560E and ACPL-M75L-560E are in active production status with ROHS3 compliance, making them appropriate for new designs. ACPL-071L-560E is recommended for designs requiring minimal modification. ACPL-M75L-560E is recommended for space-constrained applications.

Q: How do propagation delay specifications affect substitution?

A: The HCPL-0708-560E specifies 60ns maximum propagation delay. ACPL-071L-560E provides 50ns (improved), and ACPL-M75L-560E provides 55ns (improved). Both substitutes meet or exceed the original specification, ensuring timing compatibility in applications dependent on propagation delay characteristics.