PS2535-1-A Equivalent & Substitute Parts

Part Overview

The PS2535-1-A is a single-channel optoisolator with Darlington output configuration, rated for 5000Vrms isolation voltage. This component is designed for applications requiring high-voltage isolation with DC input and Darlington transistor output topology. The original PS2535-1-A manufactured by CEL is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Substiute Parts

PS2535-1-A

CELIn Stock: 5707PS2535-1-A Datasheet

Current PartRFQ

PS2535-1-V-A

Renesas Electronics CorporationIn Stock: 2315PS2535-1-V-A Datasheet

DirectRFQ

PS2535-1-A

Renesas Electronics CorporationIn Stock: 5699PS2535-1-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS2535-1-A optoisolator are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is structured into two categories:

Direct Manufacturer Substitute (Output Type Variation): The PS2535-1-V-A shares all critical electrical parameters with the main part, including 5000Vrms isolation voltage, 400%-5500% current transfer ratio range, 350V maximum output voltage, and 120mA output current per channel. Both components feature identical rise/fall times (18µs, 5µs), forward voltage characteristics (1.2V typical), and saturation voltage (1V maximum). The primary distinction is output topology: PS2535-1-V-A uses transistor output versus the Darlington output of PS2535-1-A. Both are packaged in 4-DIP (0.300", 7.62mm) through-hole configuration with identical thermal and compliance ratings.

Parametric Equivalent (Same Manufacturer, Active Status): The PS2535-1-A from Renesas Electronics Corporation is a parametric equivalent to the original CEL PS2535-1-A. This part maintains identical electrical specifications across all measured parameters, including isolation voltage, current transfer ratio, output voltage/current ratings, and timing characteristics. The component is currently active in production, providing supply continuity for the discontinued CEL variant.

Substitution eligibility is determined by matching the following mandatory parameters: isolation voltage (5000Vrms), number of channels (1), input type (DC), package type (4-DIP), output voltage rating (350V), output current rating (120mA), and operating temperature range (-55°C ~ 100°C).

Parameter Comparison

Engineering Selection Recommendations

PS2535-1-A (Renesas Electronics Corporation) is the primary recommended substitute for the discontinued CEL PS2535-1-A. This component maintains complete parametric equivalence across all electrical and mechanical specifications while offering the advantage of active production status. The part is ROHS3 compliant and carries REACH Affected designation, matching the compliance profile of the original component. Selection of this variant ensures direct functional compatibility without circuit redesign.

PS2535-1-V-A (Renesas Electronics Corporation) serves as an alternative substitute when transistor output topology is acceptable within the application circuit. This part shares all isolation voltage, current transfer ratio, output voltage/current, and timing specifications with the main part. The transistor output configuration differs from the Darlington topology of the original PS2535-1-A. This variant is ROHS3 compliant and carries REACH Unaffected designation. Circuit validation is required to confirm compatibility with the transistor output topology prior to implementation.

Both substitute parts are supplied in tube packaging and are currently in active production status, providing reliable supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can PS2535-1-V-A be used as a direct replacement for PS2535-1-A?

A: PS2535-1-V-A shares all critical electrical parameters with PS2535-1-A, including isolation voltage (5000Vrms), current transfer ratio (400%-5500%), output voltage (350V max), and output current (120mA). The primary difference is output topology: PS2535-1-V-A features transistor output while PS2535-1-A features Darlington output. Substitution is valid only if the application circuit is compatible with transistor output characteristics.

Q: What is the difference between Darlington and transistor output in these optoisolators?

A: Both output types are provided in the parameter set. Darlington output (PS2535-1-A) and transistor output (PS2535-1-V-A) differ in internal configuration. The selection between these topologies depends on application requirements for gain, saturation voltage, and switching speed. Both variants maintain identical maximum output voltage (350V) and current (120mA) ratings.

Q: Are both Renesas variants pin-compatible with the original CEL PS2535-1-A?

A: Both Renesas variants use 4-DIP (0.300", 7.62mm) through-hole packaging, matching the original CEL component package specification. Pin compatibility is confirmed by identical package type and lead spacing.

Q: What is the inventory status of substitute parts?

A: PS2535-1-A (Renesas) has 5688 pieces in stock. PS2535-1-V-A (Renesas) has 2300 pieces in stock. Both are currently in active production.

Q: Are there compliance or regulatory differences between the substitutes?

A: Both Renesas variants are ROHS3 compliant. PS2535-1-A (Renesas) carries REACH Affected designation, matching the original CEL part. PS2535-1-V-A carries REACH Unaffected designation. Both share EAR99 ECCN classification and identical HTSUS code (8541.49.8000).

Q: What is the operating temperature range for these optoisolators?

A: All three variants (CEL PS2535-1-A, Renesas PS2535-1-A, and Renesas PS2535-1-V-A) operate across -55°C to 100°C, providing identical thermal performance specifications.

Q: Can these parts be used interchangeably in new designs?

A: PS2535-1-A (Renesas) is suitable for new designs as a direct equivalent to the discontinued CEL variant. PS2535-1-V-A is suitable for new designs where transistor output topology meets application requirements. Both parts are in active production and carry ROHS3 compliance.