PS2911-1-F3-K-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2911-1-F3-K-A is a 2500Vrms isolation optoisolator with transistor output, designed for single-channel DC input applications requiring high voltage isolation in surface mount 4-SMD flat lead packaging. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure long-term supply availability for new production and field replacements.

Substiute Parts

PS2911-1-F3-K-A

CELIn Stock: 1197PS2911-1-F3-K-A Datasheet

Current PartRFQ

PS2911-1-F3-K-AX

Renesas Electronics CorporationIn Stock: 841PS2911-1-F3-K-AX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2911-1-F3-K-A is determined by strict equivalence across the following critical parameters:

Isolation Voltage: 2500Vrms isolation rating is the primary electrical requirement for high-voltage isolation applications.

Channel Configuration: Single-channel architecture must be maintained for circuit compatibility.

Current Transfer Ratio: Range of 200% to 400% @ 1mA defines the optical coupling efficiency and input-output signal transfer characteristics.

Switching Performance: Turn-on/turn-off times (40µs, 120µs) and rise/fall times (5µs, 10µs) establish the maximum operating frequency and signal fidelity.

Output Specifications: Transistor output type with 40V maximum output voltage and 40mA per-channel current capacity define load-driving capability.

Package Compatibility: 4-SMD flat lead surface mount package ensures mechanical and thermal compatibility with existing PCB designs.

Operating Temperature Range: -55°C to 100°C operational envelope must be maintained for environmental compliance.

Substitute parts must match all parameters listed above without deviation to ensure direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

The PS2911-1-F3-K-AX manufactured by Renesas Electronics Corporation is the direct parametric equivalent for the obsolete PS2911-1-F3-K-A. All electrical, thermal, and mechanical specifications are identical across the critical substitution parameters.

Product Status Consideration: The PS2911-1-F3-K-AX maintains active production status, ensuring continued availability and supply chain stability compared to the obsolete CEL variant.

Regulatory Compliance: The Renesas PS2911-1-F3-K-AX is ROHS3 compliant and REACH unaffected, providing superior regulatory positioning for new designs and long-term deployment. The original CEL part is REACH affected, which may present compliance constraints in certain jurisdictions.

Supply Availability: Current inventory of 775 units for the PS2911-1-F3-K-AX supports immediate procurement requirements.

For applications currently using the PS2911-1-F3-K-A, direct substitution with PS2911-1-F3-K-AX is supported without circuit modification or re-qualification, provided that REACH and RoHS compliance requirements are satisfied by the end application.

Frequently Asked Questions (FAQ)

Q: Can the PS2911-1-F3-K-AX replace the PS2911-1-F3-K-A in existing designs?

A: Yes. The PS2911-1-F3-K-AX is a parametric equivalent with identical electrical specifications, switching performance, output ratings, and package configuration. Direct substitution is supported without design changes.

Q: What is the primary reason for substitution?

A: The PS2911-1-F3-K-A is classified as obsolete. The PS2911-1-F3-K-AX is an active product from Renesas Electronics Corporation, ensuring long-term supply availability and manufacturing continuity.

Q: Are there differences in isolation voltage or switching speed?

A: No. Both parts maintain 2500Vrms isolation voltage, identical current transfer ratios (200% to 400% @ 1mA), and matching switching times (40µs turn-on, 120µs turn-off).

Q: Does the package remain the same?

A: Yes. Both parts use 4-SMD flat lead surface mount packaging, ensuring mechanical compatibility with existing PCB layouts and reflow processes.

Q: What is the difference in regulatory compliance?

A: The PS2911-1-F3-K-AX is ROHS3 compliant and REACH unaffected, while the original PS2911-1-F3-K-A is REACH affected. For applications subject to REACH or RoHS regulations, the Renesas variant provides superior compliance positioning.

Q: Are there any thermal or operating temperature differences?

A: No. Both parts operate across the identical temperature range of -55°C to 100°C.

Q: Can I use the PS2911-1-F3-K-AX in high-frequency switching applications?

A: Yes. The rise/fall times (5µs, 10µs) and switching times (40µs, 120µs) are identical to the original part, supporting the same maximum operating frequencies.