DH4C-C5LA Equivalent & Substitute Parts

Part Overview

The DH4C-C5LA is a snap-action SPDT switch manufactured by ZF Electronics, designed for through-hole, right-angle mounting applications. This component features a lever with simulated roller actuator, rated for 50mA DC at 30V, with an operating force of 50gf. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and component sourcing.

Substiute Parts

DH4C-C5LA

ZF ElectronicsIn Stock: 1243DH4C-C5LA Datasheet

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TS0101F020V1

E-SwitchIn Stock: 1923TS0101F020V1 Datasheet

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TS0101F020V2

E-SwitchIn Stock: 1178TS0101F020V2 Datasheet

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TS0101F020V3

E-SwitchIn Stock: 1027TS0101F020V3 Datasheet

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TS0101F020V4

E-SwitchIn Stock: 1874TS0101F020V4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DH4C-C5LA are identified based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Mounting type: Through Hole, Right Angle
• Termination style: PC Pin
• Operating position: 0.264" (6.7mm)
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

The substitute parts TS0101F020V1, TS0101F020V2, TS0101F020V3, and TS0101F020V4 (all E-Switch TS series) share identical circuit topology, mounting configuration, and mechanical positioning. These parts maintain the same through-hole right-angle design with PC pin termination, ensuring direct mechanical and electrical compatibility in PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The E-Switch TS0101 series (TS0101F020V1, TS0101F020V2, TS0101F020V3, TS0101F020V4) are active production alternatives to the obsolete DH4C-C5LA. All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.

The TS0101 variants differ from the original part in three key electrical parameters: current rating (300mA versus 50mA), voltage rating (6V versus 30V), and operating temperature range (-25°C to 85°C versus -25°C to 70°C). These differences must be evaluated against specific circuit requirements. Applications operating at voltages below 6V and currents below 50mA can utilize the TS0101 series without electrical derating. The extended upper temperature limit of the TS0101 series provides additional thermal margin in designs operating near the original part's 70°C maximum.

The TS0101 series offers documented electrical life (50,000 cycles) and mechanical life (100,000 cycles) specifications, whereas the original DH4C-C5LA does not provide these values. The lower operating force of the TS0101 series (20gf versus 50gf) results in reduced actuation effort.

All four TS0101 variants are functionally identical and interchangeable. Selection among TS0101F020V1, TS0101F020V2, TS0101F020V3, and TS0101F020V4 is based on inventory availability and packaging requirements.

Frequently Asked Questions (FAQ)

Q: Can the TS0101 series directly replace the DH4C-C5LA in all applications?

A: Direct replacement is possible only in applications where the circuit voltage does not exceed 6V and the maximum current does not exceed 300mA. The TS0101 series is rated for 6V DC maximum, compared to the DH4C-C5LA's 30V rating. Applications requiring higher voltage operation must retain the original part or identify alternative components rated for the required voltage.

Q: What is the difference between the four TS0101 variants?

A: TS0101F020V1, TS0101F020V2, TS0101F020V3, and TS0101F020V4 are functionally and electrically identical. Differences exist only in inventory availability and packaging configuration. Selection should be based on component availability and procurement requirements.

Q: Are there mechanical compatibility concerns when substituting the TS0101 for the DH4C-C5LA?

A: Both the original part and all TS0101 variants share identical mounting type (through hole, right angle), termination style (PC pin), and operating position (0.264" / 6.7mm). PCB footprints and mechanical mounting are directly compatible. The actuator type differs (simulated roller versus straight lever), but this does not affect mounting or electrical interface compatibility.

Q: How do the operating force differences affect substitution?

A: The DH4C-C5LA requires 50gf operating force, while the TS0101 series requires 20gf. This means the TS0101 series actuates with lower force. In applications where actuator force is a design parameter, this difference must be evaluated. The TS0101 series will respond to lighter actuation pressure.

Q: Are compliance certifications equivalent between the original and substitute parts?

A: Both the DH4C-C5LA and all TS0101 variants are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity ratings. Regulatory compliance is equivalent. Both are classified under ECCN EAR99 and HTSUS 8536.50.7000.

Q: What is the impact of the extended operating temperature range on the TS0101 series?

A: The TS0101 series operates from -25°C to 85°C, compared to the DH4C-C5LA's -25°C to 70°C range. The TS0101 series provides an additional 15°C of upper temperature capability. This extended range does not create compatibility issues and may provide additional thermal margin in designs operating near the original part's maximum temperature specification.