PS7141E-2A-A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7141E-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-DIP through-hole package. This component is rated for 100 mA load current across 0–400 V AC/DC output voltage with 1.2 VDC input control voltage and 50 Ohms maximum on-state resistance.

The PS7141E-2A-A is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this relay architecture.

Substiute Parts

PS7141E-2A-A

CELIn Stock: 1209PS7141E-2A-A Datasheet

Current PartRFQ

AQW214EH

Panasonic Electric WorksIn Stock: 16484AQW214EH Datasheet

SimilarRFQ

PAA193

IXYS Integrated Circuits DivisionIn Stock: 1413PAA193 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS7141E-2A-A is determined by the following critical parameters:

Mandatory Matching Criteria:

• Circuit configuration: SPST-NO (1 Form A) x 2 channels
• Package type: 8-DIP (0.300", 7.62 mm)
• Mounting type: Through Hole
• Termination style: PC Pin
• Output type: AC and DC capability
• Load current rating: 100 mA minimum
• Load voltage range: Must support 0–400 V minimum

Allowable Variation Parameters:

• Input voltage: Substitutes with 1.14 VDC or 1.2 VDC are functionally compatible
• On-state resistance: Values at or below 50 Ohms are acceptable
• Load voltage ceiling: Ratings exceeding 400 V (such as 600 V) provide enhanced margin and are acceptable

Two substitute parts meet these criteria:

AQW214EH (Panasonic Electric Works): Matches all mandatory parameters with improved on-state resistance (35 Ohms) and active product status.

PAA193 (IXYS Integrated Circuits Division): Matches all mandatory parameters with extended load voltage rating (600 V) and active product status.

Parameter Comparison

Engineering Selection Recommendations

AQW214EH Selection Criteria:

The AQW214EH is an active product with ROHS3 compliance and REACH unaffected status. It provides direct functional substitution with identical load voltage and current ratings. The reduced on-state resistance (35 Ohms versus 50 Ohms) results in lower power dissipation and improved thermal performance. This part is suitable for applications requiring direct replacement with enhanced electrical characteristics and regulatory compliance.

PAA193 Selection Criteria:

The PAA193 is an active product with ROHS3 compliance and REACH unaffected status. It provides direct functional substitution with identical input and load current ratings. The extended load voltage rating (600 V versus 400 V) offers additional design margin for applications operating near the upper voltage boundary or requiring future voltage headroom. This part is suitable for applications where enhanced voltage capability is beneficial or where supply chain preference favors IXYS components.

Regulatory Compliance:

Both substitute parts address the REACH Affected status of the original PS7141E-2A-A by offering REACH Unaffected alternatives. Both substitutes are ROHS3 compliant, supporting modern manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can AQW214EH and PAA193 be used interchangeably with PS7141E-2A-A?

A: Both parts are functionally equivalent for applications operating within 0–400 V load voltage and 100 mA load current specifications. The 8-DIP package, through-hole mounting, and PC pin termination are identical. Pin-for-pin compatibility is maintained for dual SPST-NO channel configuration.

Q: What is the difference between AQW214EH and PAA193?

A: The primary difference is load voltage rating. AQW214EH is rated 0–400 V (matching the original PS7141E-2A-A), while PAA193 is rated 0–600 V. AQW214EH has lower on-state resistance (35 Ohms versus 50 Ohms). Both are active products with full regulatory compliance.

Q: Why is the PS7141E-2A-A obsolete?

A: The PS7141E-2A-A is classified as obsolete by the manufacturer. AQW214EH and PAA193 are active products from established manufacturers and provide equivalent performance with improved availability and regulatory compliance.

Q: Are there package or pinout differences?

A: No. All three parts use identical 8-DIP (0.300", 7.62 mm) through-hole packages with PC pin termination. Direct socket substitution is supported.

Q: Which substitute should I select for new designs?

A: Selection depends on application voltage requirements. For applications operating at or below 400 V, either part is suitable. AQW214EH offers lower on-state resistance and reduced power dissipation. PAA193 offers extended voltage margin (600 V) for applications requiring additional headroom or future voltage flexibility.

Q: Are both substitutes RoHS and REACH compliant?

A: Yes. Both AQW214EH and PAA193 are ROHS3 compliant and REACH unaffected. The original PS7141E-2A-A is REACH affected, making these substitutes preferable for regulatory compliance.