SD04H0SBD DIP Switch Equivalent & Substitute Parts

Part Overview

The SD04H0SBD is a 4-position surface mount DIP switch manufactured by C&K, designed for SPST (Single Pole Single Throw) switching applications. This component features a slide actuator with gold-plated beryllium copper contacts, rated for 100mA at 25VDC, and is suitable for applications requiring reliable switching in compact form factors. The part is Active status and ROHS3 compliant, making it suitable for current production designs. Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters that ensure functional compatibility in circuit applications.

Substiute Parts

SD04H0SBD

C&KIn Stock: 1064SD04H0SBD Datasheet

Current PartRFQ

1-1825059-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 103381-1825059-3 Datasheet

SimilarRFQ

DMR04T

APEM Inc.In Stock: 2096DMR04T Datasheet

SimilarRFQ

DMR04TTR

APEM Inc.In Stock: 17750DMR04TTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SD04H0SBD are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Circuit configuration (SPST)
• Number of positions (4)
• Actuator type (Slide Standard)
• Mounting type (Surface Mount)
• Pitch spacing (0.100" / 2.54mm)
• Termination style (Gull Wing)
• Compliance status (ROHS3)

Secondary Compatibility Factors:

• Voltage rating (minimum 24VDC acceptable for 25VDC application)
• Current rating (minimum 25mA acceptable for 100mA application with derating consideration)
• Operating temperature range overlap
• Contact material and finish (Gold plating)

The identified substitutes meet the core mechanical and electrical interface requirements. However, current rating differences require evaluation based on specific application load conditions.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: DMR04T / DMR04TTR (APEM Inc.)

The APEM DMR04 series (both tube and tape & reel packaging options) provides the closest functional equivalence to the SD04H0SBD. Both variants maintain identical electrical and mechanical specifications with 2,000-cycle mechanical and electrical life ratings matching the original part. The DMR04T is available in tube packaging, while DMR04TTR is supplied in tape & reel format for automated assembly environments. Both are ROHS3 compliant with MSL 1 rating. The lower operating temperature minimum (-20°C versus -40°C) applies only to applications requiring extended low-temperature operation below -20°C.

Secondary Substitute: 1-1825059-3 (TE Connectivity ALCOSWITCH)

The TE Connectivity 1-1825059-3 maintains mechanical compatibility and core SPST 4-position configuration. This part is ROHS3 compliant and MSL 1 rated. However, the reduced mechanical and electrical life (1,000 cycles versus 2,000 cycles) and narrower operating temperature range (-30°C minimum) should be evaluated against application duty cycle requirements. This substitute is suitable for applications with lower switching frequency demands.

Current Rating Consideration:

All substitute parts are rated at 25mA maximum current, compared to the original 100mA rating. Applications operating at currents exceeding 25mA require confirmation that the substitute part's current rating is adequate for the specific load. For applications operating within the 25mA limit, substitutes are electrically compatible.

Voltage Rating:

All substitutes are rated at 24VDC, which is acceptable for 25VDC applications within standard engineering practice for DC switching circuits.

Frequently Asked Questions (FAQ)

Q: Can DMR04T replace SD04H0SBD in all applications?

A: DMR04T is mechanically and electrically compatible for applications operating at 25mA or less. If your application requires the full 100mA current rating of the original part, DMR04T is not suitable. Verify your actual circuit current draw before substitution.

Q: What is the difference between DMR04T and DMR04TTR?

A: Both parts are electrically and mechanically identical. DMR04T is supplied in tube packaging for manual assembly, while DMR04TTR is supplied in tape & reel format for automated pick-and-place assembly. Select based on your assembly process requirements.

Q: Are all substitutes pin-compatible with SD04H0SBD?

A: Yes. All substitutes maintain the same 0.100" (2.54mm) pitch, gull wing termination style, and surface mount configuration. PCB footprints are compatible.

Q: Does the height difference affect PCB layout?

A: The substitute parts have slightly different heights above board (3.70mm to 4.50mm versus 3.94mm for the original). Verify clearance in your specific PCB assembly if height-constrained applications are involved.

Q: Are all parts RoHS3 compliant?

A: Yes. SD04H0SBD and all listed substitutes are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the operating temperature range consideration?

A: The original SD04H0SBD operates from -40°C to 85°C. Substitutes operate from -20°C to -30°C minimum. If your application requires operation below -20°C, confirm the substitute part's lower temperature limit is acceptable.

Q: How do mechanical and electrical life ratings affect part selection?

A: SD04H0SBD and APEM DMR04 series both provide 2,000-cycle ratings. TE Connectivity 1-1825059-3 provides 1,000-cycle ratings. Select based on your application's expected switching frequency over the product lifetime.