TE Connectivity 1432772-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield 1432772-1 is a general purpose relay with SPST-NO (1 Form A) contact configuration, rated for 30A at 12VDC coil voltage. This relay is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production builds, repairs, and system upgrades where the original part is no longer manufactured or readily available.

Substiute Parts

1432772-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 40071432772-1 Datasheet

Current PartRFQ

CB1A-M-12V

Panasonic Electric WorksIn Stock: 5877CB1A-M-12V Datasheet

DirectRFQ

CB1A-SM-12V

Panasonic Electric WorksIn Stock: 1200CB1A-SM-12V Datasheet

DirectRFQ

CB1A-WM-12V

Panasonic Electric WorksIn Stock: 843CB1A-WM-12V Datasheet

DirectRFQ

CB1AF-M-12V

Panasonic Electric WorksIn Stock: 1908CB1AF-M-12V Datasheet

DirectRFQ

CB1AH-M-12V

Panasonic Electric WorksIn Stock: 1154CB1AH-M-12V Datasheet

SimilarRFQ

CB1AHF-M-12V

Panasonic Electric WorksIn Stock: 1252CB1AHF-M-12V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1432772-1 are grouped based on electrical and mechanical compatibility within the following critical parameters:

Primary Substitution Criteria:

• Coil Voltage: 12VDC (exact match required)
• Contact Form: SPST-NO (1 Form A) (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Termination Style: Quick Connect - 0.250" (6.3mm) (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Coil Type: Non Latching (exact match required)
• Must Operate Voltage: 7.0 VDC or higher (compatible with 7.8 VDC requirement)
• Must Release Voltage: 1.2 VDC (exact match required)
• Switching Voltage: 14VDC - Nom (exact match required)

Direct Substitutes (40A Rating): Parts CB1A-M-12V, CB1A-SM-12V, CB1A-WM-12V, and CB1AF-M-12V from Panasonic Electric Works meet all primary substitution criteria. These parts feature a 40A contact rating, which exceeds the original 30A specification, providing enhanced current capacity while maintaining all other electrical and mechanical parameters.

Similar Substitutes (70A Rating): Parts CB1AH-M-12V and CB1AHF-M-12V from Panasonic Electric Works meet all primary substitution criteria with the exception of termination style variation (Quick Connect - 0.250"/0.375" versus 0.250" (6.3mm)). These parts feature a 70A contact rating and higher coil current (150 mA versus 133 mA), representing a higher-capacity alternative.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (40A Rating):

The Panasonic Electric Works CB1A series parts (CB1A-M-12V, CB1A-SM-12V, CB1A-WM-12V, CB1AF-M-12V) are classified as active products with full RoHS compliance. These parts maintain electrical and mechanical compatibility with the original 1432772-1 specification while providing increased contact current capacity (40A versus 30A). The 40A rating provides design margin for applications where the original 30A specification is adequate.

CB1AF-M-12V includes flux protection sealing, suitable for applications requiring enhanced protection against solder flux residue. CB1A-SM-12V and CB1A-WM-12V provide fully sealed configurations without flux protection designation. CB1A-M-12V offers standard sealed construction.

All four 40A variants feature lower coil current (117 mA versus 133 mA) and higher coil resistance (103 Ohms versus 90 Ohms), resulting in reduced coil power consumption. Operate and release times are extended to 15 ms compared to the original 8 ms and 5 ms specifications.

Similar Substitutes (70A Rating):

The Panasonic Electric Works CB1AH series parts (CB1AH-M-12V, CB1AHF-M-12V) are classified as active products with full RoHS compliance. These parts provide significantly increased contact current capacity (70A) and are suitable for applications requiring higher current switching capability. The termination style variation (Quick Connect - 0.250"/0.375") requires mechanical evaluation for board layout compatibility.

CB1AH-M-12V provides fully sealed construction. CB1AHF-M-12V includes flux protection sealing. Both variants feature higher coil current (150 mA) and lower coil resistance (80 Ohms) compared to the original specification.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance or equivalent RoHS compliance status. All parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. ECCN classification remains EAR99 for all parts, consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can CB1A-M-12V, CB1A-SM-12V, CB1A-WM-12V, and CB1AF-M-12V be used interchangeably with the original 1432772-1?

A: Yes, these four Panasonic Electric Works parts are direct substitutes. All maintain identical coil voltage (12VDC), contact form (SPST-NO), mounting type (Chassis Mount), termination style (Quick Connect - 0.250"), and operating temperature range (-40°C ~ 85°C). The 40A contact rating exceeds the original 30A specification. Operate and release times are extended to 15 ms. Coil current is reduced to 117 mA.

Q: What is the difference between CB1A-M-12V, CB1A-SM-12V, CB1A-WM-12V, and CB1AF-M-12V?

A: All four parts share identical electrical specifications. The differences are in sealing and protection features. CB1AF-M-12V includes flux protection sealing. CB1A-SM-12V and CB1A-WM-12V provide fully sealed configurations. CB1A-M-12V offers standard sealed construction. Selection depends on application environment and solder flux exposure requirements.

Q: Can CB1AH-M-12V or CB1AHF-M-12V be used as substitutes?

A: CB1AH-M-12V and CB1AHF-M-12V are similar substitutes with higher current capacity (70A). These parts maintain all critical electrical parameters but feature a termination style variation (Quick Connect - 0.250"/0.375" versus 0.250" (6.3mm)). Mechanical compatibility with existing board layouts and connector receptacles must be evaluated before selection.

Q: What are the timing differences between the original 1432772-1 and the substitute parts?

A: The original 1432772-1 operates in 8 ms and releases in 5 ms. All Panasonic Electric Works substitutes (both 40A and 70A variants) operate in 15 ms and release in 15 ms. Applications with timing-critical requirements must evaluate whether the extended switching times are acceptable.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts maintain RoHS compliance. CB1A-M-12V and CB1AF-M-12V are ROHS3 compliant. CB1A-SM-12V and CB1A-WM-12V are RoHS compliant. CB1AH-M-12V is ROHS3 compliant. CB1AHF-M-12V is RoHS compliant. All parts are suitable for RoHS-regulated applications.

Q: What is the coil power consumption difference?

A: The original 1432772-1 has a coil resistance of 90 Ohms with 133 mA coil current. The 40A variants (CB1A series) have 103 Ohms resistance with 117 mA coil current, resulting in lower power consumption. The 70A variants (CB1AH series) have 80 Ohms resistance with 150 mA coil current, resulting in higher power consumption. Power supply design must accommodate these variations.

Q: Are the substitute parts available in stock?

A: Inventory availability is subject to change. CB1A-M-12V has 5830 units in stock. CB1A-SM-12V has 1149 units. CB1A-WM-12V has 826 units. CB1AF-M-12V has 1800 units. CB1AH-M-12V has 1130 units. CB1AHF-M-12V has 1148 units. Current inventory status should be confirmed at time of procurement.

Q: What contact material is used in the substitute parts?

A: The original 1432772-1 uses Silver Tin Oxide (AgSnO) contact material. All Panasonic Electric Works substitutes use Silver Alloy, Cadmium Free contact material. This material change is consistent with RoHS compliance requirements and provides equivalent switching performance for the specified applications.