A2425PG Solid State Relay - Equivalent & Substitute Parts

Part Overview

The A2425PG is an active, RoHS-compliant solid state relay (SSR) manufactured by Sensata-Crydom, designed for AC load switching applications. This SPST-NO (1 Form A) relay operates with input voltage ranging from 90–280VAC and supports load voltages from 24–280V at 25A capacity. The hockey puck form factor with screw terminal connections makes it suitable for chassis-mounted industrial control applications. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate alternative suppliers.

Substiute Parts

A2425PG

Sensata-CrydomIn Stock: 872A2425PG Datasheet

Current PartRFQ

84137011N

CrouzetIn Stock: 111684137011N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The A2425PG and its identified substitute, the Crouzet 84137011N, are functionally equivalent based on the following critical parameters:

• Circuit Configuration: Both are SPST-NO (1 Form A) relays with identical switching topology
• Output Type: Both feature AC output with zero-cross switching capability
• Load Current Rating: Both support 25A continuous load current
• Load Voltage Range: Both operate across 24–280V load voltage
• Package Form Factor: Both use hockey puck construction with screw terminal connections
• Mounting: Both are chassis-mount designs
• Compliance: Both are RoHS compliant and carry EAR99 ECCN classification

The primary difference lies in the input voltage specification: the A2425PG accepts 90–280VAC input, while the 84137011N accepts 20–265VAC input. This variance does not prevent substitution in applications where the input voltage remains within the overlapping range of 90–265VAC.

Parameter Comparison

Engineering Selection Recommendations

Both the A2425PG and 84137011N are active products with current manufacturing status and full RoHS compliance. Selection between these parts should be based on:

1. Input Voltage Compatibility: Verify that the application input voltage falls within the overlapping range of 90–265VAC. If the application requires input voltages below 90VAC or above 265VAC, only the A2425PG is suitable.

2. Supplier Availability: The A2425PG (Sensata-Crydom) and 84137011N (Crouzet) are sourced from different manufacturers. Selection may depend on supplier lead times, inventory levels, and regional distribution networks.

3. Regulatory and Compliance Requirements: Both parts carry identical ECCN (EAR99) and HTSUS classifications, ensuring equivalent export control and tariff treatment.

4. Moisture Sensitivity: The A2425PG carries no moisture sensitivity rating (Not Applicable), while the 84137011N is rated MSL 1 (Unlimited). For applications in high-humidity or long-term storage environments, this distinction may be relevant.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84137011N directly replace the Sensata-Crydom A2425PG?

A: Yes, provided the application input voltage remains within 90–265VAC. Both relays share identical circuit configuration, load ratings, output type, and physical form factor. Screw terminal connections are compatible between both designs.

Q: What is the key difference between these two relays?

A: The primary difference is input voltage range. The A2425PG accepts 90–280VAC, while the 84137011N accepts 20–265VAC. The overlapping operational range is 90–265VAC. Applications requiring input voltages above 265VAC must use the A2425PG.

Q: Are both relays RoHS compliant?

A: Yes. Both the A2425PG and 84137011N are RoHS compliant and carry identical ECCN and HTSUS classifications.

Q: Do these relays require different mounting hardware?

A: No. Both relays use identical hockey puck form factor and chassis-mount design. Existing mounting infrastructure is compatible with either part.

Q: What does "zero cross" output type mean?

A: Zero-cross switching ensures the relay switches AC loads at the zero-voltage point of the AC waveform, minimizing electrical noise and extending load life in AC applications.

Q: Can these relays be used interchangeably in existing designs?

A: Yes, provided input voltage specifications are verified. Both relays are pin-compatible and functionally equivalent for SPST-NO AC switching applications rated at 25A.