PS9113-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS9113-A is a Logic Output Optoisolator with 3750Vrms isolation, operating at 1Mbps data rate with 15kV/µs common mode transient immunity (CMTI). This component features an open collector output configuration in a 5-SO package, capable of delivering 15mA output current. The part is currently classified as obsolete, making equivalent and substitute part identification essential for ongoing system design and maintenance requirements.

Substiute Parts

PS9113-A

CELIn Stock: 932PS9113-A Datasheet

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HCPL-M454

Broadcom LimitedIn Stock: 3005HCPL-M454 Datasheet

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HCPL-M456-000E

Broadcom LimitedIn Stock: 6681HCPL-M456-000E Datasheet

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HCPL-M456-500E

Broadcom LimitedIn Stock: 16335HCPL-M456-500E Datasheet

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HCPL-M456-560E

Broadcom LimitedIn Stock: 828HCPL-M456-560E Datasheet

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HCPL-M611-560E

Broadcom LimitedIn Stock: 4062HCPL-M611-560E Datasheet

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SFH6343T

Vishay Semiconductor Opto DivisionIn Stock: 12603SFH6343T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution viability for the PS9113-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Voltage isolation rating: 3750Vrms minimum
• Output configuration: Open Collector or equivalent functionality
• Package compatibility: 5-SO / 6-SOIC form factor
• Current output capability: Minimum 15mA per channel
• Common Mode Transient Immunity: 15kV/µs or higher
• Operating temperature range: -40°C to 100°C minimum

Substitute Categories:

1. Direct Functional Equivalents (HCPL-M456 Series): Parts HCPL-M456-000E, HCPL-M456-500E, and HCPL-M456-560E share identical isolation voltage, CMTI rating, output type, and operating temperature with the PS9113-A. These differ only in packaging format (Tube, Cut Tape, and Tape & Reel respectively).

2. Higher Performance Equivalent (HCPL-M611-560E): This part maintains 3750Vrms isolation and open collector output but features significantly enhanced data rate (10MBd), lower CMTI (10kV/µs), higher output current (50mA), and stricter supply voltage range (4.5V ~ 5.5V). This requires system-level validation for compatibility.

3. Transistor Output Alternative (HCPL-M454): This part provides 3750Vrms isolation and 1-channel configuration but uses transistor output rather than open collector, with 8mA maximum output current. Operational compatibility depends on load requirements.

4. Higher Isolation Voltage Alternative (SFH6343T): This Vishay component offers 4000Vrms isolation (exceeding the requirement) with transistor output in an 8-SOIC package, providing an alternative for applications requiring enhanced isolation margins.

Parameter Comparison

Engineering Selection Recommendations

First Priority - Direct Substitutes:

The HCPL-M456 series (HCPL-M456-000E, HCPL-M456-500E, HCPL-M456-560E) offers the most direct functional replacement for the obsolete PS9113-A. All three variants share identical electrical specifications including 3750Vrms isolation, 15kV/µs CMTI, open collector output with Schottky clamping, 15mA output current, and -40°C to 100°C operating range. The differences lie solely in packaging format: Tube, Cut Tape & Digi-Reel, and Tape & Reel respectively. All are ROHS3 compliant and REACH unaffected, addressing regulatory compliance gaps in the original component.

Secondary Option - Higher Performance Variant:

The HCPL-M611-560E from Broadcom provides enhanced performance characteristics with 10MBd data rate and 50mA output current capability. However, this part operates with a restricted supply voltage range (4.5V ~ 5.5V) compared to the PS9113-A's 4.5V ~ 20V range, and has a lower maximum operating temperature (85°C vs. 100°C). The CMTI specification is also reduced to 10kV/µs. Circuit validation is required to confirm compatibility with the original PS9113-A design parameters.

Tertiary Option - Transistor Output Configuration:

The HCPL-M454 maintains 3750Vrms isolation and 1-channel single-input configuration but implements transistor output rather than open collector, with only 8mA maximum output current. This configuration is suitable for applications where load impedance does not require the 15mA capability of the original part. This part is RoHS non-compliant and requires regulatory assessment for new designs.

Enhanced Isolation Alternative:

The SFH6343T from Vishay Semiconductor provides 4000Vrms isolation exceeding the original requirement, suitable for applications demanding enhanced isolation margins. The 8-SOIC package differs from the original 5-SO footprint, requiring PCB redesign. Output is transistor-type with 8mA maximum current. This option is ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PS9113-A with any HCPL-M456 variant without circuit modifications?

A: The HCPL-M456 series (all variants: -000E, -500E, -560E) provides direct electrical equivalence to the PS9113-A. The variants differ only in packaging format (Tube, Cut Tape & Digi-Reel, or Tape & Reel). Physical footprint compatibility is maintained across all variants as they use the same 6-SOIC 5-lead package. Component selection should be based on your purchasing and manufacturing packaging requirements.

Q: What is the key difference between the HCPL-M456 and HCPL-M611 series?

A: Both maintain 3750Vrms isolation and open collector output. The HCPL-M611-560E offers significantly higher data rate (10MBd vs. unspecified for HCPL-M456) and higher output current (50mA vs. 15mA). However, the HCPL-M611 requires a narrower supply voltage range (4.5V ~ 5.5V vs. 4.5V ~ 30V) and operates only to 85°C maximum temperature (vs. 100°C). Use HCPL-M611 only if your application operates within these electrical constraints and requires higher speed or current capability.

Q: Why is the HCPL-M454 not a direct replacement despite having the same isolation voltage?

A: The HCPL-M454 uses transistor output with 8mA maximum current, whereas the PS9113-A provides open collector output with 15mA capacity. Transistor output topology may introduce different impedance characteristics and switching performance. Additionally, the reduced output current may not support all load configurations compatible with the original part. Verify load impedance and current requirements before selecting this option.

Q: Is the SFH6343T package change a significant consideration?

A: Yes. The SFH6343T uses an 8-SOIC package, while the PS9113-A and all Broadcom variants use 6-SOIC (5 Leads). This package difference requires PCB layout revision and cannot be accommodated through direct drop-in substitution. Reserve this option for new designs or systems where PCB modification is feasible. The higher isolation voltage (4000Vrms) provides a margin advantage for demanding isolation applications.

Q: What is the regulatory impact of selecting the HCPL-M454 versus other substitutes?

A: The HCPL-M454 is RoHS non-compliant, while all other substitute options (HCPL-M456 series, HCPL-M611-560E, SFH6343T) are ROHS3 compliant. For applications subject to RoHS requirements, avoid the HCPL-M454. All active substitutes are REACH unaffected, providing compliance improvement over the original PS9113-A which carries REACH Affected status.

Q: Which substitutes are available in the highest inventory quantities?

A: The HCPL-M456-500E variant maintains the largest inventory (16,315 units), followed by HCPL-M454 (2,968 units) and HCPL-M611-560E (4,017 units). HCPL-M456-000E has 6,600 units and HCPL-M456-560E has 739 units. Inventory availability should be cross-referenced with your procurement timeline and supply chain requirements.