PS7241-2A-F4-A Equivalent & Substitute Parts

Part Overview

The PS7241-2A-F4-A is a solid-state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with dual channels in an 8-SOP surface mount package. This component operates with a 1.2VDC input and supports load voltages from 0V to 400V at 120mA maximum load current. The device is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across critical electrical parameters including input voltage, load voltage range, load current capacity, and package form factor.

Substiute Parts

PS7241-2A-F4-A

CELIn Stock: 1032PS7241-2A-F4-A Datasheet

Current PartRFQ

AQW214SX

Panasonic Electric WorksIn Stock: 6957AQW214SX Datasheet

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TLP206GA(F)

Toshiba Semiconductor and StorageIn Stock: 733TLP206GA(F) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS7241-2A-F4-A is determined by strict alignment with the following critical parameters:

Mandatory Compatibility Criteria:

• Circuit configuration: SPST-NO (1 Form A) x 2 channels
• Output type: AC and DC switching capability
• Input voltage: 1.2VDC nominal (tolerance range 1.14VDC - 1.2VDC acceptable)
• Load voltage range: 0V to 400V minimum
• Load current: 120mA minimum rating
• Mounting type: Surface mount
• Package form factor: 8-SOP or equivalent 8-pin surface mount with gull wing termination
• Termination style: Gull wing leads

Substitution Logic: Parts are grouped as equivalent when they satisfy all mandatory criteria. Load current capacity may exceed the original specification without restriction. On-state resistance values within 50 Ohms maximum are acceptable for this application class. Input voltage tolerance of ±0.06VDC from the nominal 1.2VDC specification accommodates standard component variations. Product status transition from obsolete to active does not affect electrical substitutability.

Parameter Comparison

Engineering Selection Recommendations

AQW214SX (Panasonic Electric Works): The AQW214SX is an active product from the PhotoMOS™ AQW series with full ROHS3 compliance. This part maintains electrical compatibility across input voltage (1.14VDC), load voltage range (0-400V), and package geometry (8-SOP gull wing). The load current specification of 80mA is below the original 120mA requirement; this part is suitable only for applications where the actual load current does not exceed 80mA. On-state resistance of 50 Ohms is within acceptable tolerance for this relay class. Availability is high at 6930 units in stock with tape and reel packaging.

TLP206GA(F) (Toshiba Semiconductor and Storage): The TLP206GA(F) is an active product from the TLP206GA series with full ROHS3 compliance and MSL rating of 1 (Unlimited). This part provides direct electrical equivalence to the PS7241-2A-F4-A across all critical parameters: input voltage (1.15VDC), load voltage range (0-400V), load current (120mA), and on-state resistance (35 Ohms). Package form factor is 8-SMD gull wing, maintaining surface mount compatibility. Inventory availability is 717 units in tube packaging. This part is the preferred substitute when load current of 120mA is required.

Selection Basis: Both substitute parts are active products with current regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification). The choice between AQW214SX and TLP206GA(F) depends on actual application load current requirements. For applications requiring 120mA load current capacity, TLP206GA(F) is the appropriate selection. For applications with load current not exceeding 80mA, AQW214SX provides an alternative with higher inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the AQW214SX replace the PS7241-2A-F4-A in all applications?

A: The AQW214SX is electrically compatible with the PS7241-2A-F4-A for applications where the load current does not exceed 80mA. The original PS7241-2A-F4-A is rated for 120mA maximum load current. If your application requires load current between 80mA and 120mA, the AQW214SX is not suitable. For applications with load current up to 80mA, the AQW214SX provides full compatibility.

Q: What is the difference between the package designations 8-SOP and 8-SMD?

A: Both 8-SOP and 8-SMD refer to 8-pin surface mount packages with gull wing termination. The designations reflect different manufacturer naming conventions for equivalent package geometries. Both the PS7241-2A-F4-A (8-SOP) and TLP206GA(F) (8-SMD) share the same 0.173" (4.40mm) width specification and are mechanically compatible for PCB assembly.

Q: Are there input voltage differences between the original part and substitutes?

A: The input voltage specifications are 1.2VDC (PS7241-2A-F4-A), 1.14VDC (AQW214SX), and 1.15VDC (TLP206GA(F)). These variations fall within standard component tolerance ranges for solid-state relays and do not affect functional compatibility in typical circuit designs.

Q: What does the obsolete status of the PS7241-2A-F4-A mean for my design?

A: Obsolete status indicates that the PS7241-2A-F4-A is no longer manufactured by CEL and will not be available for future production orders. Both substitute parts (AQW214SX and TLP206GA(F)) are active products with ongoing manufacturing and supply availability, making them suitable for new designs and production continuity.

Q: Are both substitute parts ROHS3 compliant?

A: Yes. The AQW214SX carries ROHS3 compliance certification. The TLP206GA(F) also carries ROHS3 compliance certification. Both parts meet current environmental and regulatory requirements for electronic component manufacturing.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating?

A: The PS7241-2A-F4-A and TLP206GA(F) both carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage and handling. The AQW214SX specification does not include an MSL rating in the provided data. For applications with strict moisture control requirements, the TLP206GA(F) provides explicit MSL 1 certification.