PS9613 Optoisolator - Equivalent & Substitute Parts

Part Overview

The PS9613 is a logic output optoisolator manufactured by CEL, rated for 5000Vrms isolation voltage with open collector output configuration. This component is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new designs. The PS9613 provides 1Mbps data rate capability with 15kV/µs common mode transient immunity in an 8-DIP through-hole package.

Substiute Parts

PS9613

CELIn Stock: 3276PS9613 Datasheet

Current PartRFQ

HCPL-4504

Broadcom LimitedIn Stock: 1447HCPL-4504 Datasheet

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SFH6345

Vishay Semiconductor Opto DivisionIn Stock: 2245SFH6345 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS9613 optoisolator is evaluated based on the following critical parameters:

Package Compatibility: All substitute parts must use the 8-DIP through-hole package format (0.300", 7.62mm) to ensure mechanical and electrical compatibility with existing circuit board layouts and sockets.

Electrical Compatibility: Substitutes must operate within the PS9613's supply voltage range (4.5V ~ 30V) and support single-channel isolation topology. The isolation voltage requirement of 5000Vrms establishes a minimum threshold; substitutes with equal or greater isolation ratings are acceptable for this parameter.

Output Configuration: The PS9613 features open collector output. Substitute parts may use transistor output configuration provided they can functionally replace the open collector output in the application circuit. The output current rating of 15 mA represents a maximum operational requirement; substitutes with lower output current ratings require application-specific circuit validation.

Operating Temperature Range: The PS9613 operates from -40°C to 100°C. Substitutes with equal or wider operating temperature ranges maintain compatibility; narrower ranges require application assessment.

Regulatory and Compliance Status: RoHS compliance and REACH status are provided for component selection based on regional or customer requirements.

The identified substitute parts are HCPL-4504 (Broadcom Limited) and SFH6345 (Vishay Semiconductor Opto Division), both meeting the critical package and isolation voltage criteria with different output configurations and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

HCPL-4504 Selection: The HCPL-4504 is active in production from Broadcom Limited and available in quantity (1432 units). It provides active product lifecycle status, reducing long-term obsolescence risk. However, the HCPL-4504 features reduced isolation voltage (3750Vrms vs. 5000Vrms) and transistor output rather than open collector. The output current rating of 8 mA is lower than the PS9613's 15 mA. This substitute is appropriate for applications where the lower isolation voltage is acceptable and circuit output requirements support transistor output configuration. It maintains expanded operating temperature range (-55°C ~ 100°C) compared to the PS9613.

SFH6345 Selection: The SFH6345 from Vishay Semiconductor Opto Division is active in production with higher isolation voltage (5300Vrms), exceeding the PS9613's 5000Vrms requirement. This part offers ROHS3 compliance and REACH unaffected status, making it suitable for regulated environments. The SFH6345 uses transistor output configuration and provides 8 mA output current per channel. It includes wider operating temperature range (-55°C ~ 100°C). The higher isolation voltage and improved regulatory compliance position the SFH6345 as the preferred substitute where transistor output functionality meets application requirements.

Output Configuration Consideration: Substitution from open collector (PS9613) to transistor output (both alternatives) requires circuit-level evaluation. Applications using pull-up resistors with open collector configuration may function directly with transistor output; applications relying on open collector characteristics require buffer circuit modification.

Compliance Status: For applications subject to RoHS requirements, the SFH6345 provides ROHS3 compliance. For applications in REACH-regulated regions, both HCPL-4504 and SFH6345 provide REACH unaffected status, whereas the PS9613 is REACH affected.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-4504 or SFH6345 directly replace the PS9613 without circuit modifications?

A: Direct replacement depends on application-specific requirements. Both substitutes feature 8-DIP through-hole packages compatible with PS9613 footprints. The primary circuit-level difference is output type: the PS9613 provides open collector output, while both substitutes feature transistor output. Applications designed around PS9613 open collector characteristics may require pull-up resistor configuration adjustment. Additionally, the HCPL-4504 provides lower isolation voltage (3750Vrms vs. 5000Vrms), which must be evaluated against application isolation requirements.

Q: Which substitute part most closely matches the PS9613 electrically?

A: The SFH6345 provides the closest electrical match. It exceeds the PS9613's isolation voltage specification (5300Vrms vs. 5000Vrms), operates across the same or wider temperature range (-55°C ~ 100°C vs. -40°C ~ 100°C), maintains single-channel configuration, and shares the 8-DIP package format. The primary functional difference is transistor output versus open collector output.

Q: Are both substitute parts available for new designs?

A: Both HCPL-4504 and SFH6345 are classified as active in production status. Current inventory levels are HCPL-4504: 1432 units and SFH6345: 2209 units. Both parts are suitable for new design qualification and production deployment.

Q: What is the impact of lower isolation voltage in the HCPL-4504?

A: The HCPL-4504 provides 3750Vrms isolation versus the PS9613's 5000Vrms. This 25% reduction in isolation voltage must be evaluated within application-specific isolation requirements and regulatory standards applicable to the end system. If the application circuit design specifies 5000Vrms minimum isolation, the HCPL-4504 does not meet this requirement.

Q: How do the output current ratings compare?

A: The PS9613 provides 15 mA output current per channel, while both the HCPL-4504 and SFH6345 provide 8 mA output current per channel. Applications requiring output currents exceeding 8 mA may require additional output buffering circuits when substituting either alternative part.

Q: What compliance advantages do the substitute parts offer?

A: The SFH6345 provides ROHS3 compliance, suitable for applications requiring RoHS regulation adherence. Both substitute parts are REACH unaffected, whereas the PS9613 is REACH affected, making both suitable for REACH-regulated supply chains and applications.