BDB02 Equivalent & Substitute Parts

Part Overview

The BDB02 is a DIP switch manufactured by C&K, featuring SPST (Single Pole Single Throw) configuration with 2 positions. It is designed for through-hole mounting with a slide actuator and rated for 25mA at 25VDC. The BDB02 is classified as obsolete, making identification of suitable substitute components essential for ongoing design support, maintenance, and production continuity. Equivalent parts must maintain functional compatibility across circuit, electrical ratings, and mechanical form factor parameters.

Substiute Parts

BDB02

C&KIn Stock: 1037BDB02 Datasheet

Current PartRFQ

BD02

C&KIn Stock: 5999BD02 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BDB02 is determined by strict equivalence across the following parameters:

• Circuit Configuration: Must be SPST to maintain single-pole, single-throw switching behavior
• Number of Positions: Must be 2 to match the original switching capability
• Actuator Type: Must be Slide (Standard) to ensure mechanical compatibility with existing PCB layouts
• Mounting Type: Must be Through Hole to maintain board integration method
• Pitch: Must be 0.100" (2.54mm) to ensure pin spacing compatibility
• Operating Temperature Range: Must support -40°C ~ 85°C minimum
• Mechanical Life: Must meet or exceed 10,000 cycles
• RoHS Compliance: Must maintain ROHS3 compliance for regulatory alignment

The BD02 qualifies as a substitute based on these core parameters. However, electrical ratings (current and voltage) differ and must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The BD02 is mechanically and functionally compatible with the BDB02 across core switching parameters. Both components share identical circuit configuration (SPST), position count (2), actuator type (Slide Standard), mounting method (Through Hole), and pitch spacing (0.100"). Both maintain ROHS3 compliance and identical moisture sensitivity classification.

The BD02 offers the advantage of active product status, ensuring continued availability and supply chain support compared to the obsolete BDB02. Both components meet identical mechanical life specifications (10,000 cycles) and operating temperature range (-40°C ~ 85°C).

Selection of the BD02 as a substitute requires verification that the circuit application operates within 5VDC and 100mA electrical limits, as these ratings differ from the BDB02 specification of 25VDC and 25mA. The slightly increased height above board (0.297" vs. 0.274") must be confirmed as acceptable for the target PCB assembly.

Frequently Asked Questions (FAQ)

Q: Can the BD02 directly replace the BDB02 in all applications?

A: The BD02 is mechanically and functionally compatible based on circuit configuration, actuator type, mounting method, and pitch. However, electrical ratings differ. The BD02 is rated for 5VDC and 100mA, while the BDB02 is rated for 25VDC and 25mA. Substitution is valid only when the circuit operates within the BD02 electrical specifications.

Q: What are the key compatibility criteria for BDB02 substitutes?

A: Substitutes must maintain SPST circuit configuration, 2-position switching, slide actuator type, through-hole mounting, and 0.100" pitch spacing. Operating temperature range must support -40°C ~ 85°C minimum, mechanical life must meet 10,000 cycles, and RoHS3 compliance must be maintained.

Q: Does the height difference between BDB02 and BD02 affect PCB assembly?

A: The BD02 height above board is 0.297" compared to the BDB02 at 0.274", a difference of 0.023". This must be evaluated against PCB clearance requirements, component density, and any height-sensitive assembly constraints in the target application.

Q: Why is the BDB02 listed as obsolete?

A: The BDB02 is classified as obsolete by the manufacturer. The BD02, with active product status, represents the current equivalent offering from C&K and ensures ongoing supply availability and manufacturing support.

Q: Are both components RoHS compliant?

A: Yes, both the BDB02 and BD02 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications, ensuring regulatory alignment for both components.