PS2501-1-K-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2501-1-K-A is a single-channel optoisolator with transistor output rated for 5000Vrms isolation voltage. This component provides galvanic isolation between input and output circuits in 4-DIP through-hole packaging. The original manufacturer part (CEL) has been discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active suppliers to maintain design continuity and support ongoing production requirements.

Substiute Parts

PS2501-1-K-A

CELIn Stock: 1870PS2501-1-K-A Datasheet

Current PartRFQ

PS2501-1-K-A

Renesas Electronics CorporationIn Stock: 1818PS2501-1-K-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The PS2501-1-K-A from Renesas Electronics Corporation is a parametric equivalent of the discontinued CEL version. Substitution validity is determined by the following critical parameters that must remain unchanged:

• Isolation voltage rating: 5000Vrms
• Single-channel configuration
• Transistor output topology
• Current transfer ratio range: 300-600% @ 5mA
• Maximum output voltage: 80V
• Maximum output current: 50mA
• Package specification: 4-DIP (0.300", 7.62mm)
• Operating temperature range: -55°C to 100°C

The Renesas Electronics Corporation version maintains identical electrical and mechanical characteristics, enabling direct substitution in applications previously designed with the CEL PS2501-1-K-A.

Parameter Comparison

Engineering Selection Recommendations

The Renesas Electronics Corporation PS2501-1-K-A is the appropriate choice for applications requiring the PS2501-1-K-A optoisolator. The Renesas version maintains active product status, ensuring ongoing availability and supply chain continuity. Both versions maintain identical RoHS3 compliance and REACH regulatory status, confirming equivalent environmental and operational certification. The transition from CEL to Renesas manufacturing does not introduce compatibility constraints, as all specified electrical and mechanical parameters are preserved.

Frequently Asked Questions (FAQ)

Q: Are the CEL and Renesas versions of the PS2501-1-K-A pin-compatible?

A: Yes. Both versions use the 4-DIP (0.300", 7.62mm) package with identical pinouts and mounting specifications for through-hole applications.

Q: Can the Renesas PS2501-1-K-A be used as a direct replacement for the discontinued CEL version?

A: Yes. The Renesas version matches all critical electrical parameters including isolation voltage (5000Vrms), current transfer ratio (300-600% @ 5mA), output voltage rating (80V), output current (50mA), and operating temperature range (-55°C to 100°C).

Q: What compliance certifications apply to the Renesas PS2501-1-K-A?

A: The component is RoHS3 compliant and REACH affected, identical to the original CEL version. Export classification is EAR99.

Q: Does packaging differ between versions?

A: The CEL version is supplied in standard packaging, while the Renesas version is available in tube packaging. Both maintain the same 4-DIP component specification.

Q: Are there any temperature or environmental limitations affecting substitution?

A: Both versions operate across the full -55°C to 100°C temperature range with MSL 1 (Unlimited) moisture sensitivity, eliminating environmental constraints on substitution.