PS7214-1A-A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7214-1A-A is a solid state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with 1 Form A contact arrangement. This surface mount component operates with a 1.2VDC input signal and supports load voltages from 0V to 100V at a maximum load current of 400mA. The device is packaged in a 4-SOP (0.173", 4.40mm) form factor with gull wing termination.

The PS7214-1A-A is classified as obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility permits the use of active production alternatives that meet the application's electrical and mechanical requirements.

Substiute Parts

PS7214-1A-A

CELIn Stock: 1203PS7214-1A-A Datasheet

Current PartRFQ

AQV215S

Panasonic Electric WorksIn Stock: 2003AQV215S Datasheet

SimilarRFQ

AQY225R2S

Panasonic Electric WorksIn Stock: 2104AQY225R2S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7214-1A-A is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output type: AC and DC switching capability
• Input voltage: Compatible with 1.2VDC or lower trigger threshold
• Load voltage range: Must support 0V to 100V operation
• Load current capacity: Must equal or exceed 400mA requirement
• Mounting type: Surface mount only
• Package form factor: 4-SOP or 6-SOP with 0.173" (4.40mm) pitch
• Termination: Gull wing leads

The substitute parts identified (AQY225R2S and AQV215S) are Panasonic Electric Works PhotoMOS™ series solid state relays. Both maintain the SPST-NO circuit topology and surface mount configuration. However, each presents distinct trade-offs in load current capacity and on-state resistance that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

AQV215S Substitution: The AQV215S is suitable for applications where load current requirements do not exceed 300mA and full 0V to 100V load voltage range is required. This part maintains active production status and holds ROHS3 compliance with REACH unaffected status, providing regulatory advantage over the obsolete PS7214-1A-A. The 6-SOP package requires PCB layout modification compared to the original 4-SOP footprint. The 4 Ohm on-state resistance is higher than the original specification and must be evaluated for thermal and power dissipation impact in the target application.

AQY225R2S Substitution: The AQY225R2S is applicable only to applications with load current requirements of 150mA or less and load voltages not exceeding 80V. This part offers the same 4-SOP package footprint as the original PS7214-1A-A, eliminating PCB redesign requirements. Active production status and ROHS3 compliance with REACH unaffected designation provide regulatory benefits. The significantly higher on-state resistance (15 Ohms maximum) and reduced load voltage ceiling restrict this option to lower-power switching applications.

Both substitute parts are active production components from an established manufacturer, ensuring long-term availability and supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the AQV215S directly replace the PS7214-1A-A without PCB modification?

A: No. The AQV215S uses a 6-SOP package while the PS7214-1A-A uses a 4-SOP package. Although both maintain 0.173" (4.40mm) pitch, the pin count and footprint differ, requiring PCB layout changes.

Q: What is the primary limitation of the AQY225R2S as a substitute?

A: The AQY225R2S supports a maximum load voltage of 80V, compared to the PS7214-1A-A specification of 0V to 100V. Applications requiring load voltages above 80V cannot use this substitute. Additionally, the 150mA load current rating is significantly lower than the original 400mA specification.

Q: Are both substitute parts suitable for AC and DC load switching?

A: Yes. Both the AQV215S and AQY225R2S support AC and DC output types. The AQY225R2S additionally specifies RF capability.

Q: What is the impact of higher on-state resistance in the substitute parts?

A: Higher on-state resistance increases power dissipation during the on-state. The AQV215S (4 Ohms) and AQY225R2S (15 Ohms) both exceed the PS7214-1A-A specification of 1.2 Ohms. Applications with high load currents or thermal constraints must calculate power dissipation (P = I²R) to verify thermal performance remains acceptable.

Q: Do the substitute parts have better regulatory compliance than the original?

A: Yes. Both AQV215S and AQY225R2S are ROHS3 compliant and REACH unaffected, compared to the PS7214-1A-A which is REACH affected. This provides regulatory advantage for new designs and markets with strict environmental compliance requirements.

Q: Which substitute part requires no PCB footprint changes?

A: The AQY225R2S maintains the same 4-SOP (0.173", 4.40mm) package as the PS7214-1A-A, allowing direct footprint compatibility. The AQV215S requires PCB modification due to its 6-SOP package.

Q: What input voltage compatibility exists between the main part and substitutes?

A: The PS7214-1A-A requires 1.2VDC input. Both substitutes (AQV215S and AQY225R2S) operate at 1.14VDC, which is slightly lower. This difference is negligible for most applications using standard logic-level control signals.