TE Connectivity 1432782-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield 1432782-1 is a general purpose relay with SPST-NO (1 Form A) contact configuration, rated for 30A at 12VDC coil voltage. This socketable relay features a 90-ohm coil resistance, 133mA coil current, and operates across -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

1432782-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 10131432782-1 Datasheet

Current PartRFQ

CB1A-12V

Panasonic Electric WorksIn Stock: 936CB1A-12V Datasheet

DirectRFQ

CB1AF-12V

Panasonic Electric WorksIn Stock: 1530CB1AF-12V Datasheet

DirectRFQ

CB1AF-T-12V

Panasonic Electric WorksIn Stock: 1092CB1AF-T-12V Datasheet

DirectRFQ

CB1AH-12V

Panasonic Electric WorksIn Stock: 1000238CB1AH-12V Datasheet

SimilarRFQ

CB1AHF-12V

Panasonic Electric WorksIn Stock: 1837CB1AHF-12V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1432782-1 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Direct Substitution:

• Coil voltage: 12VDC (mandatory match)
• Contact form: SPST-NO (1 Form A) (mandatory match)
• Mounting type: Socketable (mandatory match)
• Termination style: Plug In, Quick Connect - 0.250" (6.3mm) (mandatory match)
• Operating temperature range: -40°C ~ 85°C minimum (mandatory match)
• Must operate voltage: 7.8VDC or lower (mandatory match)
• Must release voltage: 1.2VDC or lower (mandatory match)

Contact Rating Consideration: The original part is rated for 30A. Substitute parts with higher contact ratings (40A or 70A) are functionally compatible as they exceed the minimum current requirement. Parts with lower contact ratings are not suitable.

Panasonic Electric Works CB Series relays meet these criteria across multiple configurations. The CB1A-12V, CB1AF-12V, and CB1AF-T-12V variants provide 40A contact ratings with identical coil voltage, contact form, mounting type, and termination specifications. The CB1AH-12V and CB1AHF-12V variants provide 70A contact ratings with the same core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (40A Contact Rating):

The Panasonic CB1A-12V, CB1AF-12V, and CB1AF-T-12V relays are direct functional equivalents to the TE Connectivity 1432782-1. All three maintain identical coil voltage, contact form, mounting configuration, and termination specifications. These parts are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance and supply chain continuity.

The CB1AF-12V and CB1AF-T-12V variants include flux protection sealing, providing enhanced environmental protection compared to the standard CB1A-12V. The CB1AF-T-12V extends the operating temperature range to -40°C ~ 125°C, offering additional thermal margin for applications requiring extended temperature performance.

Higher Current Capacity Alternatives (70A Contact Rating):

The Panasonic CB1AH-12V and CB1AHF-12V relays provide 70A contact ratings while maintaining all other critical electrical and mechanical parameters. These parts are suitable for applications where higher current capacity provides design margin or future upgrade capability. The CB1AHF-12V includes flux protection sealing. Both variants are active products with ROHS3 compliance.

Selection Basis:

All substitute parts meet the mandatory electrical and mechanical criteria established by the original 1432782-1 specification. Selection between 40A and 70A variants depends on application current requirements. Selection between standard and flux-protected variants depends on environmental exposure requirements. The CB1AF-T-12V variant is appropriate for applications operating above 85°C.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic CB1A-12V, CB1AF-12V, or CB1AF-T-12V directly replace the TE Connectivity 1432782-1?

A: Yes. These three Panasonic relays meet all mandatory substitution criteria: 12VDC coil voltage, SPST-NO contact form, socketable mounting, 0.250" (6.3mm) quick connect termination, -40°C ~ 85°C operating range, 7VDC must-operate voltage, and 1.2VDC must-release voltage. The 40A contact rating exceeds the original 30A specification, providing functional compatibility.

Q: What is the difference between CB1AF-12V and CB1AF-T-12V?

A: Both relays share identical electrical specifications and termination style. The CB1AF-T-12V extends the operating temperature range to -40°C ~ 125°C, compared to -40°C ~ 85°C for the CB1AF-12V. Selection depends on application temperature requirements.

Q: Why are the CB1AH-12V and CB1AHF-12V listed as similar rather than direct substitutes?

A: The CB1AH-12V and CB1AHF-12V provide 70A contact ratings, exceeding the original 30A specification. While electrically and mechanically compatible, the higher current rating represents a design upgrade rather than a direct equivalent. These parts are suitable for applications requiring higher current capacity or design margin.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Panasonic CB series substitute parts listed are RoHS compliant. The CB1A-12V, CB1AF-12V, CB1AH-12V, and CB1AHF-12V are ROHS3 compliant. The CB1AF-T-12V is RoHS compliant. All parts are cadmium-free.

Q: What is the difference between standard sealing and flux protection sealing?

A: The CB1A-12V and CB1AH-12V provide fully sealed construction. The CB1AF-12V, CB1AF-T-12V, and CB1AHF-12V include flux protection sealing, which provides enhanced protection against flux residue and environmental contaminants during manufacturing and operation.

Q: Can I use a 70A relay in place of a 30A relay?

A: Yes. The CB1AH-12V and CB1AHF-12V relays with 70A contact ratings are electrically and mechanically compatible with the original 1432782-1 specification. Higher contact ratings provide additional current capacity and do not affect compatibility with circuits designed for lower current ratings.

Q: Are the termination styles identical across all substitute parts?

A: The CB1A-12V, CB1AF-12V, and CB1AF-T-12V use 0.250" (6.3mm) quick connect termination, matching the original part. The CB1AH-12V and CB1AHF-12V support multiple quick connect sizes, providing flexibility for various socket configurations while maintaining compatibility with standard 0.250" (6.3mm) connections.

Q: What is the coil current difference between the original part and substitutes?

A: The original 1432782-1 draws 133mA coil current. The CB1A-12V, CB1AF-12V, and CB1AF-T-12V draw 117mA, reducing coil power consumption. The CB1AH-12V and CB1AHF-12V draw 150mA due to higher contact rating. All values are within acceptable operating parameters for standard 12VDC relay circuits.