Equivalent & Substitute Parts for JS0204AP4-R

Part Overview

The JS0204AP4-R is a 4-position surface mount DIP slide switch manufactured by NKK Switches. This SPST switch is rated for 25mA at 24VDC with a slide actuator and gold-plated beryllium copper contacts. The part is active in production and ROHS3 compliant. Equivalent substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when alternative packaging formats are required for specific manufacturing processes.

Key Parameters

Parameter	Value
Circuit Configuration	SPST
Number of Positions	4
Current Rating	25mA
Voltage Rating	24VDC
Actuator Type	Slide (Standard)
Actuator Level	Raised
Contact Finish	Gold
Mounting Type	Surface Mount
Termination Style	Gull Wing
Pitch	0.100" (2.54mm)
Mechanical Life	2,000 Cycles
Electrical Life	2,000 Cycles
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the JS0204AP4-R 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)
Actuator level: Raised
Contact finish: Gold
Mounting type: Surface Mount
Termination style: Gull Wing
Pitch: 0.100" (2.54mm)
Mechanical and electrical life: 2,000 cycles minimum
Compliance: ROHS3 Compliant, MSL 1

All three substitute parts—DM04 (APEM Inc.), KAE04LGGR (E-Switch), and KAE04LGGT (E-Switch)—meet these core electrical and mechanical requirements. Variations in body material, contact material composition, height above board, length, operating temperature range, and packaging format do not affect functional substitutability within the specified electrical parameters.

Parameter Comparison

Parameter	JS0204AP4-R (NKK)	DM04 (APEM)	KAE04LGGR (E-Switch)	KAE04LGGT (E-Switch)
Circuit	SPST	SPST	SPST	SPST
Positions	4	4	4	4
Current Rating	25mA	25mA	25mA	25mA
Voltage Rating	24VDC	24VDC	24VDC	24VDC
Actuator Type	Slide (Standard)	Slide (Standard)	Slide (Standard)	Slide (Standard)
Actuator Level	Raised	Raised	Raised	Raised
Contact Finish	Gold	Gold	Gold	Gold
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination Style	Gull Wing	Gull Wing	Gull Wing	Gull Wing
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Height Above Board	0.170" (4.33mm)	0.173" (4.40mm)	0.175" (4.45mm)	0.175" (4.45mm)
Length	0.437" (11.10mm)	0.437" (11.10mm)	0.441" (11.20mm)	0.441" (11.20mm)
Operating Temperature	-20°C ~ 70°C	-20°C ~ 85°C	-20°C ~ 85°C	-20°C ~ 85°C
Mechanical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles
Electrical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the JS0204AP4-R based on electrical specifications and compliance certifications. Selection among these alternatives should be based on the following factors:

DM04 (APEM Inc.) is suitable for applications requiring extended operating temperature range (-20°C to 85°C versus -20°C to 70°C for the primary part). This part is available in tube packaging, which may be preferred for lower-volume applications or manual assembly processes.

KAE04LGGR (E-Switch) maintains tape and reel packaging identical to the primary part, supporting automated assembly workflows. This part offers the same extended operating temperature range as the DM04.

KAE04LGGT (E-Switch) provides the same electrical and thermal specifications as KAE04LGGR but in tube packaging format. This option is appropriate for applications where reel packaging is not required.

All substitute parts carry ROHS3 compliance and MSL 1 ratings, ensuring compatibility with standard manufacturing and storage protocols. Dimensional variations in height above board and length are within typical PCB layout tolerances for surface mount DIP switches.

Frequently Asked Questions (FAQ)

Q: Can DM04, KAE04LGGR, and KAE04LGGT be used interchangeably with JS0204AP4-R in the same circuit?

A: Yes. All three parts meet identical electrical specifications: SPST 4-position configuration, 25mA current rating, 24VDC voltage rating, gold-plated contacts, and 2,000-cycle mechanical and electrical life. They are functionally equivalent for circuit operation.

Q: What is the significance of the height above board difference (0.170" to 0.175")?

A: The height variation of 0.005" (0.127mm) is within standard PCB layout tolerances for surface mount components. This minor difference does not affect electrical performance or standard PCB assembly processes.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Tube packaging formats serve different manufacturing workflows but do not alter the electrical or mechanical characteristics of the switch itself. TR packaging is optimized for high-volume automated assembly; Tube packaging is suitable for lower-volume or manual assembly applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. JS0204AP4-R, DM04, KAE04LGGR, and KAE04LGGT are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the difference between the NKK beryllium copper contacts and the APEM/E-Switch copper alloy contacts?

A: Both contact materials are gold-plated and rated for identical electrical performance at 25mA and 24VDC. Contact material composition does not affect functional substitutability within the specified electrical parameters.

Q: Which substitute part should I select for high-temperature applications?

A: DM04, KAE04LGGR, and KAE04LGGT all support operating temperatures up to 85°C, compared to 70°C for the primary JS0204AP4-R. Any of these three substitutes is appropriate for applications requiring extended thermal range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message