PS7141C-2A-A Equivalent & Substitute Parts

Part Overview

The PS7141C-2A-A is a solid state relay (SSR) with SPST-NO (1 Form A × 2) configuration in an 8-DIP through-hole package. This component features 120 mA load current capacity and operates across 0–400 V load voltage range with 35 Ω maximum on-state resistance. The part is currently obsolete, making identification of equivalent alternatives critical for system maintenance, redesign, and continuous production support. Substitute parts must maintain functional compatibility across electrical specifications, package footprint, and termination style.

Substiute Parts

PS7141C-2A-A

CELIn Stock: 910PS7141C-2A-A Datasheet

Current PartRFQ

AQW210HL

Panasonic Electric WorksIn Stock: 1343AQW210HL Datasheet

SimilarRFQ

CT330

Coto TechnologyIn Stock: 1314CT330 Datasheet

SimilarRFQ

LAA110

IXYS Integrated Circuits DivisionIn Stock: 5852LAA110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified based on the following critical parameters:

• Package Compatibility: All substitutes use 8-DIP (0.300", 7.62mm) through-hole footprint with PC pin termination
• Circuit Configuration: All maintain SPST-NO (1 Form A) × 2 configuration
• Load Current: All support minimum 100 mA to 120 mA load current
• Output Type: All support both AC and DC load switching
• Input Voltage: Operating range between 1.14 VDC and 1.37 VDC

Three substitute parts meet these criteria: AQW210HL (Panasonic Electric Works), CT330 (Coto Technology), and LAA110 (IXYS Integrated Circuits Division).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Products):

• AQW210HL and LAA110 are preferred alternatives, as both maintain active product status and full RoHS3 compliance. AQW210HL offers improved on-state resistance (25 Ohms versus 35 Ohms), while LAA110 maintains identical input voltage and on-state resistance specifications as the original PS7141C-2A-A.

Secondary Substitute (Obsolete Product):

• CT330 provides full 0–400 V load voltage compatibility matching the original part but carries obsolete product status and higher HTSUS classification (8536.49.0055 versus 8536.41.0030). Selection of CT330 should consider long-term availability constraints.

Compliance Considerations:

• All three substitutes carry REACH Unaffected status, whereas the original PS7141C-2A-A is REACH Affected. This provides regulatory advantage in EU applications.
• AQW210HL and LAA110 carry MSL (Moisture Sensitivity Level) ratings compatible with standard storage and handling, supporting manufacturing flexibility.

Frequently Asked Questions (FAQ)

Q: Can AQW210HL replace PS7141C-2A-A in all applications? A: AQW210HL is suitable for most applications. The load voltage rating reduction from 400 V to 350 V must be evaluated against system requirements. The improved on-state resistance (25 Ohms) represents a performance enhancement.

Q: Is CT330 a suitable long-term replacement? A: CT330 matches the load voltage specification (0–400 V) but carries obsolete product status. While electrically compatible, long-term supply availability is uncertain. Active product substitutes (AQW210HL or LAA110) are recommended for new designs.

Q: Do all substitutes fit the same PCB footprint? A: Yes. All substitute parts use 8-DIP (0.300", 7.62mm) through-hole package with PC pin termination, enabling direct PCB footprint compatibility without layout modifications.

Q: What is the significance of load current differences (120 mA vs. 100 mA)? A: CT330 operates at 100 mA maximum, requiring verification that application loads do not exceed this limit. AQW210HL and LAA110 both support full 120 mA load current matching the original specification.

Q: Are there compliance advantages to using substitute parts? A: Yes. All three substitutes carry REACH Unaffected status compared to the PS7141C-2A-A's REACH Affected classification. AQW210HL and LAA110 additionally provide RoHS3 compliance, benefiting EU market applications.

Q: Which substitute offers the best thermal characteristics? A: AQW210HL provides the lowest on-state resistance (25 Ohms), reducing resistive heating. LAA110 maintains the original resistance specification (35 Ohms), and CT330 offers intermediate performance (30 Ohms).