PS7141L-2A-A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7141L-2A-A is a solid state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-SMD surface mount package. This component is rated for 150 mA load current across 0-400V AC/DC output with 1.2VDC input control voltage and 30 Ohms maximum on-state resistance.

The PS7141L-2A-A is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this relay specification.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NO (1 Form A) x 2
Output Type	AC, DC
Voltage - Input	1.2VDC
Voltage - Load	0 V ~ 400 V
Load Current	150 mA
On-State Resistance (Max)	30 Ohms
Mounting Type	Surface Mount
Package / Case	8-SMD (0.300", 7.62mm)
Termination Style	Gull Wing

Substitute Part Grouping Explanation

Substitution eligibility for the PS7141L-2A-A is determined by the following critical parameters:

Mandatory Matching Parameters:

Circuit Configuration: SPST-NO (1 Form A) x 2
Package / Case: 8-SMD (0.300", 7.62mm)
Termination Style: Gull Wing
Mounting Type: Surface Mount
Output Type: AC, DC

Allowable Parameter Variations: Substitute parts may differ in the following parameters provided they meet or exceed the original specification:

Voltage - Input: 1.14VDC or higher (PS7141L-2A-A: 1.2VDC)
Voltage - Load: 350V minimum (PS7141L-2A-A: 0-400V)
Load Current: 100 mA minimum (PS7141L-2A-A: 150 mA)
On-State Resistance: 50 Ohms maximum (PS7141L-2A-A: 30 Ohms)

All identified substitute parts maintain identical package geometry, circuit topology, and mounting characteristics, ensuring direct PCB compatibility without layout modifications.

Parameter Comparison

Parameter	PS7141L-2A-A (CEL)	AQW210A (Panasonic)	AQW214A (Panasonic)	AQW214EHA (Panasonic)	PAA110PLTR (IXYS)
Manufacturer	CEL	Panasonic Electric Works	Panasonic Electric Works	Panasonic Electric Works	IXYS Integrated Circuits Division
Product Status	Obsolete	Active	Active	Active	Active
Circuit Configuration	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2
Output Type	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC
Voltage - Input	1.2VDC	1.14VDC	1.14VDC	1.14VDC	1.2VDC
Voltage - Load	0 V ~ 400 V	0 V ~ 350 V	0 V ~ 400 V	0 V ~ 400 V	0 V ~ 400 V
Load Current	150 mA	120 mA	100 mA	100 mA	150 mA
On-State Resistance (Max)	30 Ohms	35 Ohms	50 Ohms	35 Ohms	25 Ohms
Package / Case	8-SMD (0.300", 7.62mm)	8-SMD (0.300", 7.62mm)	8-SMD (0.300", 7.62mm)	8-SMD (0.300", 7.62mm)	8-SMD (0.300", 7.62mm)
Termination Style	Gull Wing	Gull Wing	Gull Wing	Gull Wing	Gull Wing
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

PAA110PLTR (IXYS Integrated Circuits Division) - Primary Substitute

The PAA110PLTR is the optimal substitute for the PS7141L-2A-A. This part maintains identical electrical specifications: 1.2VDC input voltage, 0-400V load voltage range, and 150 mA load current rating. The on-state resistance of 25 Ohms is superior to the original 30 Ohms specification. The PAA110PLTR carries active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory alignment and long-term supply availability. Packaging is supplied in Tape & Reel format.

AQW214EHA (Panasonic Electric Works) - Secondary Substitute

The AQW214EHA provides full compatibility with identical load voltage range (0-400V) and matching on-state resistance of 35 Ohms. Input voltage is 1.14VDC, which is within acceptable tolerance of the original 1.2VDC specification. Load current rating is 100 mA, which represents a 33% reduction from the original 150 mA specification. This part is suitable for applications where load current does not exceed 100 mA. Active product status and ROHS3 compliance are confirmed. Packaging is supplied in Tube format.

AQW214A (Panasonic Electric Works) - Tertiary Substitute

The AQW214A maintains identical load voltage range (0-400V) and input voltage compatibility (1.14VDC). On-state resistance is 50 Ohms, representing a 67% increase from the original specification. Load current rating is 100 mA. This part is suitable only for applications where load current does not exceed 100 mA and where increased on-state resistance is acceptable. Active product status and ROHS3 compliance are confirmed.

AQW210A (Panasonic Electric Works) - Limited Substitute

The AQW210A has a reduced load voltage range of 0-350V, which is 50V below the original 0-400V specification. Load current is 120 mA, representing a 20% reduction from the original 150 mA. On-state resistance is 35 Ohms. This part is suitable only for applications operating within the 0-350V load voltage range. Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can the PAA110PLTR directly replace the PS7141L-2A-A without PCB modifications?

A: Yes. The PAA110PLTR maintains identical package geometry (8-SMD, 0.300" / 7.62mm), termination style (Gull Wing), and mounting type (Surface Mount). No PCB layout changes are required for direct substitution.

Q: What is the primary difference between the AQW214EHA and AQW214A?

A: Both parts share identical electrical specifications except for on-state resistance. The AQW214EHA has a maximum on-state resistance of 35 Ohms, while the AQW214A has a maximum of 50 Ohms. Selection depends on application requirements for voltage drop and power dissipation.

Q: Why is the AQW210A listed as a substitute if it has a lower voltage rating?

A: The AQW210A is listed as a substitute only for applications where the load voltage does not exceed 350V. For applications requiring the full 0-400V range, the AQW214A, AQW214EHA, or PAA110PLTR are appropriate selections.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts (AQW210A, AQW214A, AQW214EHA, and PAA110PLTR) carry ROHS3 compliance certification. The original PS7141L-2A-A RoHS status is not specified in the provided data.

Q: What is the significance of REACH status in component selection?

A: The original PS7141L-2A-A is marked as REACH Affected, indicating it may contain substances of very high concern (SVHC). All substitute parts are marked as REACH Unaffected, providing regulatory advantage for new designs and ongoing production in regions with REACH compliance requirements.

Q: Can the AQW210A be used in applications requiring 400V load voltage?

A: No. The AQW210A is rated for 0-350V load voltage only. Use of this part in applications exceeding 350V violates the component specification and may result in device failure or safety hazards.

Q: What packaging formats are available for these substitute parts?

A: PAA110PLTR is supplied in Tape & Reel (TR) format. AQW210A, AQW214A, and AQW214EHA are supplied in Tube format. Selection of packaging format depends on production volume and assembly equipment compatibility.

Q: Is the 1.14VDC input voltage of Panasonic parts compatible with 1.2VDC control circuits?

A: Yes. The 1.14VDC specification represents the minimum input voltage threshold. Control circuits designed for 1.2VDC operation will function correctly with parts rated at 1.14VDC, as the control voltage will exceed the minimum threshold.

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