HCPL-0708#500 Equivalent & Substitute Parts

Part Overview

The HCPL-0708#500 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications requiring 3750Vrms isolation voltage. This component features a push-pull, totem pole output configuration with 15MBd data rate capability and 10kV/µs common mode transient immunity. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

HCPL-0708#500

Broadcom LimitedIn Stock: 57827HCPL-0708#500 Datasheet

Current PartRFQ

TLP116A(TPL,E

Toshiba Semiconductor and StorageIn Stock: 2109TLP116A(TPL,E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCPL-0708#500 is determined by the following critical electrical and mechanical parameters:

• Voltage isolation rating: 3750Vrms minimum
• Common mode transient immunity: 10kV/µs minimum
• Output configuration: Push-pull, totem pole topology
• Input type: DC
• Single channel configuration
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 100°C
• Surface mount packaging

The TLP116A(TPL,E) from Toshiba Semiconductor and Storage meets all mandatory substitution criteria. While this substitute operates at a higher data rate (20MBd versus 15MBd) and provides increased output current capability (10mA versus 2mA), these represent functional improvements that maintain backward compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLP116A(TPL,E) is the qualified substitute for the obsolete HCPL-0708#500. Selection of this substitute is supported by the following factors:

• Active product status ensures long-term availability and manufacturing support
• ROHS3 compliance provides regulatory alignment for new designs and procurement requirements
• Identical isolation voltage and common mode transient immunity specifications guarantee electrical compatibility
• Matching supply voltage range and operating temperature range enable direct functional replacement
• Enhanced performance characteristics (higher data rate, increased output current, faster rise/fall times) provide design margin without requiring circuit modifications
• Identical propagation delay specifications maintain timing-critical system performance

Package geometry differences (8-SOIC versus 6-SOIC) require PCB layout verification to confirm physical fit within existing designs.

Frequently Asked Questions (FAQ)

Q: Can the TLP116A(TPL,E) directly replace the HCPL-0708#500 in existing designs?

A: Electrical substitution is valid based on matching isolation voltage, common mode transient immunity, output topology, and supply voltage specifications. Physical substitution requires PCB layout verification due to package differences (8-SOIC versus 6-SOIC, 5-lead configuration).

Q: What are the key differences between these optoisolators?

A: The TLP116A(TPL,E) provides higher data rate capability (20MBd versus 15MBd), increased output current (10mA versus 2mA), and faster rise/fall times. Propagation delay specifications remain identical. The substitute features ROHS3 compliance versus non-compliance of the original part.

Q: Are there package compatibility concerns?

A: Yes. The HCPL-0708#500 uses 8-SOIC packaging while the TLP116A(TPL,E) uses 6-SOIC with 5 leads. Physical footprint differences require PCB layout review before implementation.

Q: Does the higher output current of the substitute affect circuit design?

A: The increased output current capability (10mA versus 2mA) represents a functional improvement that maintains backward compatibility. Existing load resistor values and circuit configurations designed for the original 2mA specification will operate within the substitute's capabilities.

Q: What is the regulatory status difference between these parts?

A: The HCPL-0708#500 is RoHS non-compliant, while the TLP116A(TPL,E) is ROHS3 compliant. This distinction is significant for new product designs subject to RoHS regulations and procurement policies requiring compliant components.