PS2933-1-F3-AX

Part Overview

The PS2933-1-F3-AX is an optoisolator with Darlington output, rated for 2500Vrms isolation voltage. This component is designed for applications requiring galvanic isolation with DC input and Darlington output configuration. The main part is discontinued at DiGi Electronics, necessitating identification of active substitute components that maintain identical electrical and mechanical specifications to ensure direct replacement capability in existing designs.

Key Parameters

Parameter	Value
Voltage - Isolation	2500Vrms
Number of Channels	1
Output Type	Darlington
Current Transfer Ratio (Min)	400% @ 1mA
Current Transfer Ratio (Max)	4500% @ 1mA
Current - Output / Channel	60mA
Voltage - Output (Max)	350V
Vce Saturation (Max)	1V
Rise / Fall Time (Typ)	20µs, 5µs
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Flat Leads

Substitute Part Grouping Explanation

Substitute parts for the PS2933-1-F3-AX optoisolator are identified based on parametric equivalence across the following critical criteria:

Isolation Voltage: 2500Vrms (determines safety and regulatory compliance)
Number of Channels: 1 (functional architecture requirement)
Output Type: Darlington (output stage configuration)
Current Transfer Ratio Range: 400% to 4500% @ 1mA (transfer efficiency specification)
Output Current: 60mA per channel (load-driving capability)
Maximum Output Voltage: 350V (voltage handling specification)
Saturation Voltage: 1V maximum (switching performance)
Switching Characteristics: 20µs rise time, 5µs fall time (timing specification)
Temperature Range: -55°C to 100°C (operational envelope)
Package: 4-SMD, Flat Leads / 4-Mini-Flat (physical and electrical compatibility)

All identified substitutes maintain 100% parametric alignment with these critical parameters. Variations in packaging format (Strip vs. Tape & Reel) and product status (Active vs. Discontinued) do not affect electrical or mechanical functionality.

Parameter Comparison

Parameter	PS2933-1-F3-AX (Original)	PS2933-1-V-F3-AX	PS2933-1-V-AX
Manufacturer	CEL	Renesas Electronics Corporation	Renesas Electronics Corporation
Product Status	Discontinued at DiGi Electronics	Active	Active
Voltage - Isolation	2500Vrms	2500Vrms	2500Vrms
Number of Channels	1	1	1
Output Type	Darlington	Darlington	Darlington
Current Transfer Ratio (Min)	400% @ 1mA	400% @ 1mA	400% @ 1mA
Current Transfer Ratio (Max)	4500% @ 1mA	4500% @ 1mA	4500% @ 1mA
Current - Output / Channel	60mA	60mA	60mA
Voltage - Output (Max)	350V	350V	350V
Vce Saturation (Max)	1V	1V	1V
Rise / Fall Time (Typ)	20µs, 5µs	20µs, 5µs	20µs, 5µs
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Flat Leads	4-SMD, Flat Leads	4-SMD, Flat Leads
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both PS2933-1-V-F3-AX and PS2933-1-V-AX provide direct electrical and mechanical equivalence to the PS2933-1-F3-AX optoisolator. Selection between available substitutes should be based on the following criteria:

PS2933-1-V-F3-AX: This substitute maintains Active product status and is supplied in Tape & Reel (TR) packaging format. This configuration is suitable for high-volume production environments and automated assembly processes. Current inventory availability is 7674 units.

PS2933-1-V-AX: This substitute also maintains Active product status and is supplied in Strip packaging format. This configuration is suitable for lower-volume applications and manual assembly processes. Current inventory availability is 2771 units.

Both substitutes are manufactured by Renesas Electronics Corporation and carry identical RoHS3 compliance and REACH Unaffected certifications. Selection between the two substitutes is driven by supply chain requirements, procurement volume, and manufacturing process compatibility rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can PS2933-1-V-F3-AX and PS2933-1-V-AX be used interchangeably with the PS2933-1-F3-AX?

A: Yes. Both substitutes are parametric equivalents with identical electrical specifications, isolation voltage ratings, output current capacity, and operating temperature ranges. Physical dimensions and mounting characteristics are identical across all three part numbers.

Q: What is the difference between the two recommended substitutes?

A: The primary difference is packaging format. PS2933-1-V-F3-AX is supplied in Tape & Reel format, optimized for automated placement equipment. PS2933-1-V-AX is supplied in Strip format, suitable for manual assembly or lower-volume applications. Electrical performance is identical.

Q: Are there any compliance differences between the original part and the substitutes?

A: No. All three parts are ROHS3 Compliant, REACH Unaffected, and carry identical EAR99 and HTSUS classification codes. Moisture Sensitivity Level is 1 (Unlimited) for all parts.

Q: Does the change in manufacturer from CEL to Renesas Electronics Corporation affect compatibility?

A: No. The substitutes maintain 100% parametric compatibility across all specified electrical and mechanical parameters. Renesas Electronics Corporation manufactures the PS2933 series with the same performance characteristics.

Q: What packaging considerations should be evaluated for this optoisolator?

A: The 4-Mini-Flat package is identical across all three part numbers. If implementing automated assembly, select the Tape & Reel packaged variant (PS2933-1-V-F3-AX). For manual assembly or custom boards, either strip or reel packaged variants can be accommodated.

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