PS8103-F3-A Equivalent & Substitute Parts

Part Overview

The PS8103-F3-A is an optoisolator with transistor output manufactured by CEL, designed for high-voltage isolation applications requiring 3750Vrms isolation rating. This component features a single channel configuration in a 6-SOIC surface mount package with 5 leads. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

PS8103-F3-A

CELIn Stock: 5949PS8103-F3-A Datasheet

Current PartRFQ

PS8101-F3-AX

Renesas Electronics CorporationIn Stock: 3638PS8101-F3-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS8103-F3-A is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Isolation: 3750Vrms (electrical isolation requirement)
• Number of Channels: 1 (functional configuration)
• Output Type: Transistor (output stage architecture)
• Input Type: DC (input signal type)
• Package / Case: 6-SOIC (0.173", 4.40mm Width), 5 Leads (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Current - Output / Channel: 8mA (output drive capability)

The PS8101-F3-AX qualifies as a direct substitute based on full alignment with these mandatory parameters. Both components share identical isolation voltage, channel count, output configuration, package geometry, and output current specifications, enabling direct replacement in existing designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: PS8101-F3-AX

The PS8101-F3-AX is the direct functional equivalent for PS8103-F3-A replacement. Selection of this substitute is supported by the following engineering factors:

Product Status Justification: The PS8103-F3-A is obsolete, while PS8101-F3-AX is in active production status. This ensures long-term availability, consistent manufacturing quality, and ongoing technical support from Renesas Electronics Corporation.

Compliance and Regulatory Status: PS8101-F3-AX carries ROHS3 compliance certification and REACH Unaffected status, providing superior regulatory positioning compared to the original part's REACH Affected classification. These certifications facilitate compliance with current environmental and safety standards in manufacturing and distribution.

Electrical Performance: The substitute demonstrates equivalent or superior electrical characteristics across all critical parameters. The higher current transfer ratio range (15%-35% versus 10%-30%), faster switching times (500ns/600ns versus 1µs/2µs), and extended operating temperature range (-55°C to 100°C versus -40°C to 100°C) provide enhanced performance margins and broader application flexibility.

Physical and Functional Compatibility: Identical package geometry (6-SOIC, 5 leads), mounting type (surface mount), isolation voltage (3750Vrms), channel count (1), and output current (8mA) ensure direct PCB compatibility and functional interchangeability without design modification.

Packaging and Availability: PS8101-F3-AX is available in Cut Tape and Digi-Reel packaging formats with 3600 pieces in current inventory, supporting both prototype and production-volume procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can PS8101-F3-AX be used as a direct replacement for PS8103-F3-A without PCB modifications?

A: Yes. Both components share identical package geometry (6-SOIC, 5 leads), pin configuration, isolation voltage (3750Vrms), channel count, and output current specifications. Direct PCB substitution is supported without layout or schematic changes.

Q: What are the key differences between PS8103-F3-A and PS8101-F3-AX?

A: The primary differences are: (1) Product status—PS8101-F3-AX is active production versus PS8103-F3-A obsolete; (2) Switching speed—PS8101-F3-AX offers faster turn-on/turn-off times (500ns/600ns versus 1µs/2µs); (3) Current transfer ratio—PS8101-F3-AX has higher minimum and maximum CTR values; (4) Operating temperature range—PS8101-F3-AX extends to -55°C minimum; (5) Regulatory compliance—PS8101-F3-AX is ROHS3 compliant and REACH Unaffected; (6) Output voltage rating—PS8101-F3-AX supports 35V maximum versus 15V.

Q: Are there any circuit design considerations when substituting PS8101-F3-AX for PS8103-F3-A?

A: The higher forward voltage (1.7V versus 1.2V) and lower maximum forward current (25mA versus 50mA) of PS8101-F3-AX require verification of input LED drive circuit current limiting. The faster switching times may require evaluation of circuit timing margins if the original design relied on the slower switching characteristics of PS8103-F3-A. The higher output voltage rating (35V versus 15V) provides additional design margin for output stage applications.

Q: What is the isolation voltage specification, and does it remain the same?

A: Both components provide 3750Vrms isolation voltage. This specification is identical and unchanged in the substitution.

Q: Is PS8101-F3-AX available in the same packaging options?

A: PS8101-F3-AX is supplied in Cut Tape (CT) and Digi-Reel packaging formats. Verify packaging requirements for your procurement process, as packaging format may differ from original PS8103-F3-A sourcing.

Q: What is the moisture sensitivity level for PS8101-F3-AX?

A: PS8101-F3-AX carries MSL 1 (Unlimited) classification, identical to PS8103-F3-A. This indicates minimal moisture sensitivity and no special storage or handling requirements.

Q: Does PS8101-F3-AX meet current environmental compliance standards?

A: Yes. PS8101-F3-AX is ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.