SDB04H1SBD Equivalent & Substitute Parts

Part Overview

The SDB04H1SBD is a DIP 4-position surface mount slide switch manufactured by C&K, designed for SPST (Single Pole Single Throw) switching applications at 25mA and 24VDC. This component features phosphor bronze contacts with gold finish, gull wing termination, and is rated for 1,000 mechanical and electrical cycles. The SDB04H1SBD is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

SDB04H1SBD

C&KIn Stock: 831SDB04H1SBD Datasheet

Current PartRFQ

SDA04H1SBD

C&KIn Stock: 62780SDA04H1SBD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDB04H1SBD is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST)
• Number of positions (4)
• Current rating (25mA)
• Voltage rating (24VDC)
• Actuator type (Slide, Standard)
• Mounting type (Surface Mount)
• Termination style (Gull Wing)
• Pitch (0.100" / 2.54mm)
• Operating temperature range (-40°C ~ 85°C)
• Mechanical and electrical life (1,000 Cycles minimum)
• RoHS3 compliance

The SDA04H1SBD qualifies as a direct substitute, maintaining all critical electrical and mechanical parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SDA04H1SBD is the qualified substitute for the obsolete SDB04H1SBD. Both components maintain identical electrical specifications (SPST, 4-position, 25mA, 24VDC) and mechanical compatibility (surface mount, gull wing termination, 0.100" pitch). Both are ROHS3 compliant with MSL 1 rating.

The SDA04H1SBD offers the advantage of active product status with significantly higher inventory availability (62,721 pcs vs. 736 pcs). Minor dimensional variations exist: the SDA04H1SBD is 0.025" taller and 0.033" longer, with beryllium copper contacts and PPS body material compared to phosphor bronze contacts and polyamide body in the SDB04H1SBD. These material differences do not affect functional equivalence for the specified electrical and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the SDA04H1SBD be used as a direct replacement for the SDB04H1SBD in existing designs?

A: Yes. Both components share identical electrical ratings (25mA, 24VDC, SPST, 4-position), mechanical configuration (surface mount, gull wing, 0.100" pitch), and operating temperature range (-40°C ~ 85°C). The dimensional differences (0.025" height and 0.033" length) are minor and do not affect PCB layout compatibility for standard applications.

Q: What are the material differences between these two parts?

A: The SDB04H1SBD uses phosphor bronze contacts with a polyamide (PA46) body, while the SDA04H1SBD uses beryllium copper contacts with a polyphenylene sulfide (PPS) body. Both contact materials and body materials are suitable for the specified electrical and environmental conditions.

Q: Why is the SDB04H1SBD obsolete?

A: The SDB04H1SBD is classified as obsolete by the manufacturer. The SDA04H1SBD represents the active product line continuation with equivalent functionality and improved availability.

Q: Are there packaging differences?

A: The SDB04H1SBD is supplied in standard packaging, while the SDA04H1SBD is supplied in tube packaging. Both are suitable for automated assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SDB04H1SBD and SDA04H1SBD are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry EAR99 ECCN classification and 8536.50.9065 HTSUS code.