PS9117A-AX Equivalent & Substitute Parts

Part Overview

The PS9117A-AX is a logic output optoisolator manufactured by CEL, part of the NEPOC series. This component provides 3750Vrms isolation with open collector output configuration, supporting 10Mbps data rates and 15kV/µs common mode transient immunity in a 5-SO surface mount package. The PS9117A-AX is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain compatibility with the isolation voltage, channel configuration, output type, and package specifications while meeting the electrical performance requirements of the original design.

Substiute Parts

PS9117A-AX

CELIn Stock: 955PS9117A-AX Datasheet

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ACPL-M46T-000E

Broadcom LimitedIn Stock: 1493ACPL-M46T-000E Datasheet

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ACPL-M46T-500E

Broadcom LimitedIn Stock: 5820ACPL-M46T-500E Datasheet

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ACPL-M62L-000E

Broadcom LimitedIn Stock: 16189ACPL-M62L-000E Datasheet

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ACPL-M62L-500E

Broadcom LimitedIn Stock: 2288ACPL-M62L-500E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS9117A-AX are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Number of Channels: 1 (single channel configuration required)
• Package / Case: 6-SOIC (0.173", 4.40mm Width), 5 Leads (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Input Type: DC (signal interface compatibility)
• Voltage - Isolation: 3750Vrms or higher (isolation rating must meet or exceed original specification)
• Common Mode Transient Immunity (Min): 15kV/µs or higher (transient performance requirement)

Secondary Compatibility Factors:

• Output Type: Open Collector or Open Drain (both are functionally compatible in typical applications)
• Data Rate: 10Mbps or higher (bandwidth requirement)
• Propagation Delay: 80ns or lower (timing performance)
• Voltage - Supply: Range must accommodate 4.5V ~ 5.5V operation
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The substitute parts are grouped into two categories based on output configuration: open collector variants (ACPL-M46T series) and open drain variants (ACPL-M62L series). Both categories meet the isolation voltage, CMTI, and package requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

ACPL-M62L Series (ACPL-M62L-000E, ACPL-M62L-500E) - Primary Substitutes

The ACPL-M62L series represents the closest functional equivalents to the PS9117A-AX. These parts maintain identical isolation voltage (3750Vrms), matching DC input type, and equivalent data rate (10MBd). The open drain output configuration is functionally compatible with open collector applications in standard circuit topologies. Both variants are active products with full production support. The ACPL-M62L-500E offers tape and reel packaging for high-volume assembly operations, while ACPL-M62L-000E is available in tube packaging. Both meet ROHS3 compliance and MSL 1 requirements. Operating temperature range extends to 105°C, providing enhanced thermal margin compared to the original part's 85°C maximum.

ACPL-M46T Series (ACPL-M46T-000E, ACPL-M46T-500E) - Secondary Substitutes

The ACPL-M46T series provides higher isolation voltage (4000Vrms) and extended supply voltage range (4.5V ~ 30V), offering design flexibility for applications requiring broader operating margins. These parts maintain the open collector output configuration with Schottky clamping, matching the original output type. Both variants are active products with AEC-Q100 automotive qualification. Operating temperature extends to 125°C. The primary trade-off is reduced output current (15 mA versus 25 mA) and increased propagation delay (550ns versus 75ns). These characteristics require circuit-level evaluation for timing-critical applications. ACPL-M46T-500E is available in cut tape and Digi-Reel packaging; ACPL-M46T-000E is supplied in tube packaging.

Selection Criteria Summary

For applications where propagation delay is not a limiting factor and output current requirements do not exceed 15 mA, the ACPL-M46T series provides enhanced isolation voltage and supply voltage flexibility. For applications requiring timing performance closer to the original specification and output current up to 25 mA, the ACPL-M62L series is the preferred selection. All substitute parts are active products with established supply chains and full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the ACPL-M62L series directly replace the PS9117A-AX without circuit modifications?

A: The ACPL-M62L series is pin-compatible and functionally equivalent for most applications. The primary difference is output type: open drain versus open collector. Both output configurations operate with external pull-up resistors in standard logic circuits. Verify that the external pull-up resistor value and supply voltage are compatible with the 10 mA output current rating of the ACPL-M62L series. The PS9117A-AX supports 25 mA output current; applications requiring higher output current must use the ACPL-M46T series or implement additional output buffering.

Q: What is the difference between the ACPL-M62L-000E and ACPL-M62L-500E?

A: Both parts are electrically identical. The difference is packaging format: ACPL-M62L-000E is supplied in tube packaging for manual assembly or small-volume applications; ACPL-M62L-500E is supplied in tape and reel format for automated pick-and-place assembly. Select based on assembly process requirements and volume.

Q: Why do the ACPL-M46T parts have longer propagation delay (550ns) compared to the PS9117A-AX (75ns)?

A: The ACPL-M46T series incorporates Schottky clamping on the output stage, which provides faster switching recovery and improved noise immunity at the cost of increased propagation delay. This design trade-off is inherent to the Schottky-clamped output architecture. Applications with strict timing requirements should use the ACPL-M62L series, which maintains propagation delay within 80ns.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (ACPL-M46T-000E, ACPL-M46T-500E, ACPL-M62L-000E, ACPL-M62L-500E) are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity rating, matching the original PS9117A-AX specifications.

Q: Can the ACPL-M46T series operate at the PS9117A-AX supply voltage range of 4.5V ~ 5.5V?

A: Yes. The ACPL-M46T series supports supply voltage range of 4.5V ~ 30V, which encompasses the original 4.5V ~ 5.5V range. The extended upper limit provides additional design flexibility for applications requiring higher supply voltages.

Q: What is the minimum output current capability of each substitute part?

A: ACPL-M46T series: 15 mA per channel. ACPL-M62L series: 10 mA per channel. The PS9117A-AX supports 25 mA per channel. Applications requiring output current between 15 mA and 25 mA must use the ACPL-M46T series. Applications requiring output current above 15 mA should verify that the reduced current rating does not impact circuit performance.

Q: Do the substitute parts maintain the same isolation voltage as the PS9117A-AX?

A: The ACPL-M62L series maintains 3750Vrms isolation, identical to the PS9117A-AX. The ACPL-M46T series provides 4000Vrms isolation, which exceeds the original specification. Both meet or exceed the isolation requirement.

Q: Are the substitute parts available in the same 5-SO package?

A: Yes. All substitute parts are supplied in 6-SOIC (0.173", 4.40mm Width), 5 Leads package, which is physically and electrically compatible with the PS9117A-AX. PCB footprints and assembly processes require no modification.