PS7141L-1A Equivalent & Substitute Parts

Part Overview

The PS7141L-1A is a solid state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single-Pole Single-Throw Normally Open) device rated for 150 mA load current at 0–400 V AC/DC output. This component is rated at 1.2 VDC input and features a 6-SMD (0.300", 7.62 mm) gull wing package. The PS7141L-1A is marked as obsolete, making identification of compatible alternatives necessary for continued design support and procurement planning. Substitute components must maintain electrical compatibility across input voltage, load voltage range, load current capacity, and physical package specifications.

Key Parameters

Parameter	PS7141L-1A
Manufacturer	CEL
Circuit Configuration	SPST-NO (1 Form A)
Output Type	AC, DC
Voltage – Input	1.2 VDC
Voltage – Load	0 V ~ 400 V
Load Current	150 mA
On-State Resistance (Max)	30 Ohms
Package / Case	6-SMD (0.300", 7.62 mm)
Termination Style	Gull Wing
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the PS7141L-1A is determined by the following electrical and mechanical criteria:

Load Voltage Range: Substitute must support 0–400 V load voltage to accommodate the design requirement.
Load Current Capacity: Substitute must support 150 mA load current. Higher current ratings are acceptable; lower ratings require design review.
Input Voltage Compatibility: Input voltage must be compatible with 1.2 VDC control signal. Components rated between 1.14 VDC and 2.3 VDC input are functionally compatible.
Package and Termination: All substitutes must use 6-SMD (0.300", 7.62 mm) package with gull wing termination for mechanical interchangeability.
Output Type: AC and DC output capability ensures compatibility with both AC and DC switching applications.

Based on these criteria, AQV210A, AQV210EA, AQV214A, AQV214EA, AQV214EAX, AQV214EHA, and AQV234A are functionally equivalent substitutes. AQV103A and AQV224NA series support the load voltage and package specifications but may require application-specific evaluation due to lower load current capacity (300 mA and 50 mA respectively) and AQV103A's DC-only output type.

Parameter Comparison

Part Number	Manufacturer	Load Voltage	Load Current (mA)	Input Voltage (VDC)	On-State Resistance (Ohms)	Output Type	Product Status
PS7141L-1A	CEL	0–400 V	150	1.2	30	AC, DC	Obsolete
AQV103A	Panasonic Electric Works	0–250 V	300	2.3	4	DC	Active
AQV210A	Panasonic Electric Works	0–350 V	130	1.14	35	AC, DC	Active
AQV210EA	Panasonic Electric Works	0–350 V	130	1.14	35	AC, DC	Active
AQV214A	Panasonic Electric Works	0–400 V	120	1.14	50	AC, DC	Active
AQV214EA	Panasonic Electric Works	0–400 V	120	1.14	50	AC, DC	Active
AQV214EAX	Panasonic Electric Works	0–400 V	120	1.14	50	AC, DC	Active
AQV214EHA	Panasonic Electric Works	0–400 V	120	1.14	50	AC, DC	Active
AQV224NA	Panasonic Electric Works	0–400 V	50	1.14	100	AC, DC (RF)	Active
AQV224NAX	Panasonic Electric Works	0–400 V	50	1.14	100	AC, DC (RF)	Active
AQV234A	Panasonic Electric Works	0–400 V	120	1.14	50	AC, DC	Active

Engineering Selection Recommendations

Primary Substitutes (Direct Replacements)

AQV210A, AQV210EA, AQV214A, AQV214EA, AQV214EAX, AQV214EHA, and AQV234A are the recommended substitutes for new designs. These components are in active product status, support 0–400 V load voltage operation (AQV210/AQV210EA at 0–350 V), and provide AC/DC output capability. All maintain the 6-SMD (0.300", 7.62 mm) gull wing package. Most are RoHS3 Compliant or RoHS Compliant, ensuring modern supply chain compatibility.

Secondary Substitutes (Application-Dependent)

AQV103A operates at reduced load voltage (0–250 V) and offers DC-only output, limiting its use to DC-switching applications within the 250 V envelope. The 300 mA load current rating exceeds the original 150 mA requirement.

AQV224NA and AQV224NAX provide AC/DC (RF) output capability at full 0–400 V load voltage but with reduced load current capacity (50 mA). These components are suitable only for low-current applications and should not be applied in designs requiring the original 150 mA load current.

Packaging Considerations

AQV214EAX and AQV224NAX are supplied in Tape & Reel (TR) format, whereas most alternatives are available in Tube packaging. Both formats are compatible with SMD assembly processes and present no functional differences.

Frequently Asked Questions (FAQ)

Q: Can AQV210A be used as a direct substitute for PS7141L-1A? A: AQV210A is functionally compatible for the majority of applications. It supports AC/DC operation at the required input voltage (1.14 VDC), features the same package and termination, and maintains a 0–350 V load voltage range. The load current rating of 130 mA is 20 mA below the original specification and must be evaluated for your specific circuit load requirements.

Q: Why is AQV103A not recommended despite higher current capacity? A: AQV103A supports only DC output operation and limits the load voltage range to 0–250 V. The PS7141L-1A is specified for both AC and DC output. If your application requires AC switching at voltages above 250 V, AQV103A is not suitable.

Q: What is the difference between AQV214A, AQV214EA, AQV214EHA, and AQV234A? A: All four components offer identical electrical parameters (0–400 V load voltage, 120 mA load current, 1.14 VDC input, 50 Ohms on-state resistance, AC/DC output). They differ in packaging format (Tube) and RoHS compliance certifications. Functionally, any may be selected based on supply chain availability and compliance requirements.

Q: Can AQV224NA be used in a design requiring 150 mA load current? A: No. AQV224NA is rated for 50 mA maximum load current. It is not suitable for applications requiring the 150 mA load capacity of the PS7141L-1A and would create an undersized design condition.

Q: Are all substitute components pin-compatible with PS7141L-1A? A: All substitutes share the 6-SMD (0.300", 7.62 mm) gull wing package and surface mount configuration. Printed circuit board layouts designed for the PS7141L-1A footprint are compatible with all listed substitutes.

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