SD04H0SB1 Equivalent & Substitute Parts

Part Overview

The SD04H0SB1 is a 4-position surface mount DIP slide switch manufactured by C&K, rated for 100mA at 25VDC with SPST circuit configuration. This component is classified as Active product status and is RoHS3 compliant. Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit operation at lower voltage or current ratings while maintaining functional compatibility within the application circuit.

Substiute Parts

SD04H0SB1

C&KIn Stock: 1186SD04H0SB1 Datasheet

Current PartRFQ

219-4MSTRF

CTS ElectrocomponentsIn Stock: 2997219-4MSTRF Datasheet

SimilarRFQ

DM04

APEM Inc.In Stock: 3147DM04 Datasheet

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JS0204AP4

NKK SwitchesIn Stock: 1124JS0204AP4 Datasheet

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KAE04LGGR

E-SwitchIn Stock: 7638KAE04LGGR Datasheet

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KAE04LGGT

E-SwitchIn Stock: 10739KAE04LGGT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SD04H0SB1 is determined by strict adherence to the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST
• Number of positions must be 4
• Mounting type must be Surface Mount
• Pitch must be 0.100" (2.54mm)
• Termination style must be Gull Wing
• MSL rating must be 1 (Unlimited)
• RoHS3 compliance required

Allowable Parameter Variations:

• Current rating may be equal to or greater than the application requirement (100mA minimum for SD04H0SB1)
• Voltage rating may be equal to or greater than the application requirement (25VDC minimum for SD04H0SB1)
• Operating temperature range may be narrower or equal to the application requirement
• Height above board may vary within ±0.010" tolerance
• Contact material and finish may differ if electrical performance is maintained
• Actuator level (Flush/Recessed vs. Raised) may vary

Substitute Parts Identified:

• 219-4MSTRF (CTS Electrocomponents): Meets all primary criteria. Voltage rating 20VDC is below requirement; current rating 100mA matches. Not suitable for applications requiring 25VDC operation.

• DM04 (APEM Inc.): Meets all primary criteria. Current rating 25mA and voltage rating 24VDC are below requirement. Suitable only for applications with reduced current demands (≤25mA).

• JS0204AP4 (NKK Switches): Meets all primary criteria. Current rating 25mA and voltage rating 24VDC are below requirement. Suitable only for applications with reduced current demands (≤25mA).

• KAE04LGGR (E-Switch): Meets all primary criteria. Current rating 25mA and voltage rating 24VDC are below requirement. Suitable only for applications with reduced current demands (≤25mA).

• KAE04LGGT (E-Switch): Meets all primary criteria. Current rating 25mA and voltage rating 24VDC are below requirement. Suitable only for applications with reduced current demands (≤25mA).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Full Electrical Compatibility):

The 219-4MSTRF from CTS Electrocomponents is the only substitute that maintains the 100mA current rating. However, its 20VDC voltage rating is below the SD04H0SB1 specification of 25VDC. This part is suitable only for applications where the actual operating voltage does not exceed 20VDC.

Reduced-Rating Substitutes (Current and Voltage Derating Required):

The DM04 (APEM Inc.), JS0204AP4 (NKK Switches), KAE04LGGR (E-Switch), and KAE04LGGT (E-Switch) all feature reduced current ratings (25mA) and voltage ratings (24VDC). These parts are suitable only for applications where both the circuit current demand does not exceed 25mA and the operating voltage does not exceed 24VDC. All five substitute parts maintain RoHS3 compliance and MSL rating 1 status, ensuring regulatory and moisture sensitivity equivalence to the primary part.

Frequently Asked Questions (FAQ)

Q: Can I use the 219-4MSTRF as a direct replacement for the SD04H0SB1?

A: The 219-4MSTRF matches the current rating (100mA) but has a lower voltage rating (20VDC vs. 25VDC). It is suitable only if your application operates at 20VDC or below. If your circuit requires 25VDC operation, this substitute is not appropriate.

Q: What is the difference between the DM04, JS0204AP4, KAE04LGGR, and KAE04LGGT?

A: All four parts share identical electrical specifications (25mA, 24VDC) and are functionally equivalent. The primary differences are manufacturer (APEM Inc., NKK Switches, or E-Switch), packaging format (Tube, Bulk, or Tape & Reel), and minor mechanical variations in height above board (0.173" to 0.175"). Selection should be based on packaging availability and inventory requirements.

Q: Can I use a 25mA-rated switch in a circuit designed for 100mA?

A: No. Using a switch rated for 25mA in a 100mA circuit will cause the switch to overheat and fail prematurely. Current rating substitutes must equal or exceed the application requirement.

Q: Are all these parts RoHS3 compliant?

A: Yes. All listed substitute parts, including the primary SD04H0SB1, are RoHS3 compliant and carry MSL rating 1 (Unlimited moisture sensitivity level).

Q: What is the significance of the 0.100" pitch specification?

A: The 0.100" (2.54mm) pitch is the center-to-center spacing between switch positions. All listed parts maintain this pitch, ensuring PCB footprint compatibility and interchangeability at the board level.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range may be narrower than the primary part without affecting substitution eligibility, provided the application does not require the extended range. The SD04H0SB1 operates from -40°C to 85°C. Substitutes with narrower ranges (such as JS0204AP4 at -20°C to 70°C) are suitable only for applications within their specified temperature envelope.