Equivalent & Substitute Parts for CB1-D-M-12V

Part Overview

The CB1-D-M-12V is an automotive SPDT relay manufactured by Panasonic Electric Works, designed for 12VDC applications with a 40A contact rating. This relay features a sealed, fully diode-protected design with quick-connect termination suitable for chassis mounting. The product is currently obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

CB1-D-M-12V

Panasonic Electric WorksIn Stock: 1130CB1-D-M-12V Datasheet

Current PartRFQ

CB1F-M-12V

Panasonic Electric WorksIn Stock: 2476CB1F-M-12V Datasheet

DirectRFQ

6-1393302-1

TE Connectivity AMP ConnectorsIn Stock: 10826-1393302-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB1-D-M-12V is determined by the following critical parameters:

Primary Matching Criteria:

• Coil voltage: 12VDC
• Contact form: SPDT (1 Form C)
• Contact rating: 40 A minimum
• Coil current: Within acceptable operating range for existing circuit design
• Must operate voltage: 7 VDC or lower
• Must release voltage: 1.2 VDC or lower
• Operating temperature range: Minimum -40°C ~ 85°C coverage
• Mounting type: Chassis Mount
• Termination style: Quick Connect - 0.250" (6.3mm)

Direct Substitute: CB1F-M-12V matches all primary criteria and is manufactured by the same supplier (Panasonic Electric Works) within the same CB series.

Similar Substitute: 6-1393302-1 (TE Connectivity) meets core electrical requirements but differs in operate/release timing and operating temperature upper limit.

Parameter Comparison

Engineering Selection Recommendations

CB1F-M-12V (Direct Substitute - Recommended)

The CB1F-M-12V is the primary equivalent for CB1-D-M-12V applications. Both parts are manufactured by Panasonic Electric Works and share identical electrical specifications, coil resistance, and operating parameters. The CB1F-M-12V is currently in active production status with higher inventory availability (2368 pcs vs. 1043 pcs). Both parts maintain ROHS3 compliance and REACH Unaffected status. The CB1F-M-12V differs only in packaging (Bulk vs. Quick Connect termination designation) and includes flux protection sealing. This part provides direct functional equivalence with no circuit redesign required.

6-1393302-1 (Similar Substitute - Conditional)

The 6-1393302-1 from TE Connectivity meets the core 12VDC, 40A SPDT requirement but introduces operational differences. The coil current is higher (133.3 mA vs. 117 mA), operate time is faster (7 ms vs. 15 ms), and release time is significantly faster (2 ms vs. 15 ms). The must operate voltage is marginally higher (7.2 VDC vs. 7 VDC) and must release voltage is higher (1.6 VDC vs. 1.2 VDC). The operating temperature range extends to 125°C. This part is suitable only when circuit design accommodates the higher coil current draw and faster switching characteristics. REACH status is vendor undefined, requiring verification for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can CB1F-M-12V directly replace CB1-D-M-12V without circuit modification?

A: Yes. The CB1F-M-12V is a direct equivalent with identical coil voltage, current, resistance, contact rating, and operating voltage thresholds. No circuit redesign is required.

Q: What are the key differences between CB1F-M-12V and 6-1393302-1?

A: The CB1F-M-12V maintains identical electrical specifications to the original CB1-D-M-12V. The 6-1393302-1 has higher coil current (133.3 mA), faster switching times (7 ms operate, 2 ms release), higher voltage thresholds, and extended temperature range to 125°C. Circuit compatibility must be verified before substitution.

Q: Why is the CB1-D-M-12V obsolete?

A: Product obsolescence is determined by the manufacturer. The CB1F-M-12V serves as the active production replacement within the same Panasonic CB series.

Q: Are there packaging differences between the substitute parts?

A: CB1F-M-12V is supplied in Bulk packaging. Both CB1-D-M-12V and CB1F-M-12V use Quick Connect - 0.250" (6.3mm) termination. The 6-1393302-1 termination style is not specified in available documentation.

Q: Which substitute part should be selected for new designs?

A: CB1F-M-12V is recommended for new designs as it is in active production status, maintains full specification equivalence, and carries ROHS3 compliance and REACH Unaffected certification.

Q: Does the 6-1393302-1 require circuit validation before use?

A: Yes. The higher coil current (133.3 mA vs. 117 mA) and faster switching characteristics require verification that the existing circuit design can accommodate these parameters. Additionally, REACH status is vendor undefined and must be confirmed for regulated applications.