Equivalent & Substitute Parts for CB1AF-D-24V

Part Overview

The CB1AF-D-24V is a socketable automotive relay manufactured by Panasonic Electric Works, designed for single-pole single-throw (SPST) switching applications at 20A capacity with 24VDC coil voltage. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The relay features sealed flux protection, cadmium-free silver alloy contacts, and is suitable for automotive and industrial control applications requiring reliable switching performance across extended temperature ranges.

Substiute Parts

CB1AF-D-24V

Panasonic Electric WorksIn Stock: 1004CB1AF-D-24V Datasheet

Current PartRFQ

1393303-9

TE Connectivity AMP ConnectorsIn Stock: 14901393303-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB1AF-D-24V is determined by strict alignment of the following critical parameters:

• Coil Voltage: Must be 24VDC to ensure direct compatibility with existing control circuits
• Contact Form: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Contact Rating: Must be rated for minimum 20A continuous current
• Switching Voltage: Must support 28VDC nominal switching conditions
• Coil Type: Must be Non Latching for equivalent operational behavior
• Mounting Type: Must be Socketable to fit existing relay sockets
• Termination Style: Plug In, Quick Connect termination required for mechanical compatibility

The substitute part 1393303-9 (TE Connectivity AMP Connectors, Series F4) meets all mandatory substitution criteria across these parameters.

Parameter Comparison

Engineering Selection Recommendations

The 1393303-9 (TE Connectivity AMP Connectors, Series F4) qualifies as a functional equivalent for the CB1AF-D-24V based on matching coil voltage, contact form, current rating, and switching voltage specifications. The substitute part is currently in active production status, ensuring long-term availability compared to the obsolete CB1AF-D-24V.

Key considerations for selection:

• Connector Compatibility: The substitute uses 0.110" (2.8mm) quick connect terminals versus the original 0.250" (6.3mm) terminals. Socket or harness adaptation may be required depending on existing installation infrastructure.
• Temperature Performance: The substitute operates across -40°C to 125°C, providing extended thermal capability beyond the original -40°C to 85°C range.
• Switching Speed: The substitute exhibits faster operate time (7 ms versus 15 ms), which may be advantageous in time-sensitive switching applications but does not create incompatibility.
• Compliance Status: The substitute is RoHS Compliant, whereas the original part status is not specified. Both parts carry EAR99 ECCN classification and share identical HTSUS coding (8536.41.0050).

Frequently Asked Questions (FAQ)

Q: Can the 1393303-9 directly replace the CB1AF-D-24V without circuit modifications?

A: Electrical substitution is valid. The coil voltage, current rating, contact form, and switching voltage are identical. However, the connector terminal size differs (0.110" versus 0.250"), requiring harness or socket adapter evaluation before installation.

Q: What is the significance of the different coil current values (75 mA versus 74.1 mA)?

A: The 0.9 mA difference is negligible and falls within normal manufacturing tolerance. Both values represent equivalent coil loading for 24VDC control circuits.

Q: Does the faster operate time of the substitute part (7 ms versus 15 ms) affect compatibility?

A: No. Faster switching response is a performance enhancement that does not create incompatibility. Applications designed for 15 ms response will function correctly with 7 ms response.

Q: Are there compliance or certification differences between these parts?

A: The substitute (1393303-9) is RoHS Compliant and currently in active production. The original part (CB1AF-D-24V) is obsolete. Both carry identical ECCN and HTSUS classifications. Compliance requirements for your specific application should be verified against your system documentation.

Q: What is the impact of the extended operating temperature range (-40°C to 125°C versus -40°C to 85°C)?

A: The substitute provides wider thermal operating capability. If your application operates within the original -40°C to 85°C range, both parts are suitable. If operation extends above 85°C, the substitute is required.

Q: Is the cadmium-free contact material specification maintained in the substitute?

A: The substitute specifies Silver Alloy contacts without explicit cadmium-free designation in the provided data. Contact material compliance should be verified with TE Connectivity technical documentation if cadmium-free certification is a regulatory requirement for your application.