TE Connectivity Potter & Brumfield Relays 1432792-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relays 1432792-1 is a general purpose relay with SPDT (1 Form C) contact configuration, rated for 30A at 12VDC coil voltage. This relay features chassis mount construction with quick connect 0.250" (6.3mm) termination and is designed for non-latching operation with integrated resistor protection.

The 1432792-1 is classified as obsolete. Substitute parts are necessary to maintain system functionality and ensure continued availability for new designs and field replacements. Active equivalent models from Panasonic Electric Works provide enhanced specifications and current product status while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Coil Voltage	12VDC
Contact Form	SPDT (1 Form C)
Contact Rating (Current)	30 A
Mounting Type	Chassis Mount
Termination Style	Quick Connect - 0.250" (6.3mm)
Operating Temperature Range	-40°C ~ 85°C
Coil Type	Non Latching
Switching Voltage	14VDC - Nom
Must Operate Voltage	7.8 VDC
Must Release Voltage	1.2 VDC

Substitute Part Grouping Explanation

Substitution of the 1432792-1 is based on strict electrical and mechanical parameter matching. The following criteria determine substitute eligibility:

Primary Matching Criteria:

Coil voltage: 12VDC
Contact form: SPDT (1 Form C)
Mounting type: Chassis Mount
Termination style: Quick Connect - 0.250" (6.3mm)
Operating temperature range: -40°C ~ 85°C
Coil type: Non Latching
Switching voltage: 14VDC - Nom
Must operate voltage: 7.8 VDC or lower
Must release voltage: 1.2 VDC or lower

Substitute Categories:

Parametric Equivalent: Part 1432794-1 (TE Connectivity Potter & Brumfield Relays) matches all electrical and mechanical parameters identically to the 1432792-1. This part differs only in packaging (Bulk vs. standard) and inventory status.

Direct Manufacturer Equivalents: Parts CB1-R-M-12V, CB1-R-SM-12V, CB1-R-WM-12V, CB1F-R-M-12V, CB1F-R-SM-12V, and CB1F-R-WM-12V (Panasonic Electric Works) meet all primary matching criteria. These parts feature enhanced contact rating (40A vs. 30A), providing superior current handling capability while maintaining full backward compatibility. All substitute parts operate within the required voltage thresholds and temperature range.

Parameter Comparison

Parameter	1432792-1	1432794-1	CB1-R-M-12V	CB1-R-SM-12V	CB1-R-WM-12V	CB1F-R-M-12V	CB1F-R-SM-12V	CB1F-R-WM-12V
Manufacturer	TE Connectivity	TE Connectivity	Panasonic	Panasonic	Panasonic	Panasonic	Panasonic	Panasonic
Coil Voltage	12VDC	12VDC	12VDC	12VDC	12VDC	12VDC	12VDC	12VDC
Contact Form	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Contact Rating (Current)	30 A	30 A	40 A	40 A	40 A	40 A	40 A	40 A
Switching Voltage	14VDC - Nom	14VDC - Nom	14VDC - Nom	14VDC - Nom	14VDC - Nom	14VDC - Nom	14VDC - Nom	14VDC - Nom
Coil Current	151 mA	151 mA	134 mA	134 mA	134 mA	134 mA	134 mA	134 mA
Must Operate Voltage	7.8 VDC	7.8 VDC	7 VDC	7 VDC	7 VDC	7 VDC	7 VDC	7 VDC
Must Release Voltage	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC
Operate Time	10 ms	10 ms	15 ms	15 ms	15 ms	15 ms	15 ms	15 ms
Release Time	13 ms	13 ms	15 ms	15 ms	15 ms	15 ms	15 ms	15 ms
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Termination Style	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"	Quick Connect - 0.250"
Coil Type	Non Latching	Non Latching	Non Latching	Non Latching	Non Latching	Non Latching	Non Latching	Non Latching
Contact Material	Silver Tin Oxide	Silver Tin Oxide	Silver Alloy, Cadmium Free	Silver Alloy, Cadmium Free	Silver Alloy, Cadmium Free	Silver Alloy, Cadmium Free	Silver Alloy, Cadmium Free	Silver Alloy, Cadmium Free
Coil Resistance	79.5 Ohms	79.5 Ohms	89.5 Ohms	89.5 Ohms	89.5 Ohms	89.5 Ohms	89.5 Ohms	89.5 Ohms
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Obsolete	Obsolete	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent):

Part 1432794-1 provides identical electrical and mechanical specifications to the 1432792-1. This part maintains the same 30A contact rating, coil resistance, and timing characteristics. Both parts are classified as obsolete and carry ROHS3 compliance. Selection of 1432794-1 is appropriate when exact parameter matching is required and inventory availability is the primary consideration.

For Active Product Substitution:

The Panasonic Electric Works CB series relays (CB1-R-M-12V, CB1-R-SM-12V, CB1-R-WM-12V, CB1F-R-M-12V, CB1F-R-SM-12V, CB1F-R-WM-12V) are active products that meet all primary electrical and mechanical compatibility criteria. These parts feature:

Enhanced contact rating of 40A, providing 33% greater current capacity than the original 1432792-1
Lower coil current (134 mA vs. 151 mA), reducing power consumption
Lower must-operate voltage (7 VDC vs. 7.8 VDC), improving low-voltage performance
Cadmium-free silver alloy contacts, meeting environmental compliance standards
Fully sealed or flux-protected construction, enhancing reliability in harsh environments

The CB1-R series provides standard sealing, while the CB1F series includes flux protection for enhanced soldering process compatibility. Packaging variants (M, SM, WM) accommodate different distribution and assembly requirements.

Selection of Panasonic CB series relays is recommended for new designs and long-term field replacement strategies due to active product status and superior performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic CB1-R-M-12V relay directly replace the TE Connectivity 1432792-1?

A: Yes. The CB1-R-M-12V meets all primary electrical and mechanical compatibility criteria: 12VDC coil voltage, SPDT contact form, chassis mount construction, and 0.250" quick connect termination. The 40A contact rating exceeds the original 30A specification, providing enhanced current capacity. Operating temperature range, coil type, and voltage thresholds are identical.

Q: What is the difference between CB1-R and CB1F relay series?

A: The CB1F series includes flux protection in addition to full sealing, providing enhanced compatibility with soldering processes and improved protection against flux residue. Both series maintain identical electrical specifications and contact ratings. Selection depends on manufacturing process requirements.

Q: How do packaging variants (M, SM, WM) affect relay selection?

A: Packaging variants indicate distribution format: M denotes bulk packaging, SM denotes tube packaging, and WM denotes bulk packaging with alternative configuration. All variants maintain identical electrical and mechanical specifications. Selection is based on procurement, storage, and assembly line requirements.

Q: Is the 1432794-1 a better choice than Panasonic alternatives?

A: The 1432794-1 provides exact parameter matching to the original 1432792-1, including identical 30A contact rating and 79.5 Ohm coil resistance. However, both parts are classified as obsolete. For new designs and long-term availability, Panasonic CB series relays are recommended due to active product status and enhanced specifications.

Q: What is the impact of the 40A contact rating in Panasonic relays on system design?

A: The 40A contact rating in Panasonic CB series relays provides 33% greater current capacity than the original 1432792-1 (30A). This enhancement improves system margin and reliability without requiring circuit modifications. The relay remains fully compatible with applications designed for 30A operation.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 1432794-1 carries ROHS3 compliance. Panasonic CB1-R and CB1F series relays carry either ROHS3 or RoHS compliance certification. All substitute parts meet environmental compliance requirements for electronic component manufacturing and distribution.

Q: What is the difference in coil current between the original and substitute relays?

A: The original 1432792-1 requires 151 mA coil current, while Panasonic CB series relays require 134 mA. This 11% reduction in coil current decreases power consumption and heat generation, improving overall system efficiency without affecting switching performance.

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