APEM Inc. 13435AD2 Pushbutton Switch SPDT Equivalent & Substitute Parts

Part Overview

The APEM Inc. 13435AD2 is an active production SPDT pushbutton switch rated for 4A at 125V AC and 30V DC. This panel-mount rear component features a plunger actuator with solder lug termination and operates across -40°C to 85°C with 150,000 mechanical cycles and 20,000 electrical cycles. The part is ROHS3 compliant and REACH unaffected, making it suitable for industrial control and switching applications requiring reliable momentary contact operation.

Equivalent and substitute parts become necessary when addressing supply chain constraints, inventory availability, or application-specific requirements such as different current ratings, voltage specifications, or packaging formats while maintaining functional compatibility within SPDT switching architecture.

Substiute Parts

13435AD2

APEM Inc.In Stock: 71813435AD2 Datasheet

Current PartRFQ

8121SDZGE

C&KIn Stock: 10788121SDZGE Datasheet

SimilarRFQ

8168S2HZQE1

C&KIn Stock: 9058168S2HZQE1 Datasheet

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8168SHZGE2

C&KIn Stock: 14888168SHZGE2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 13435AD2 is determined by strict adherence to the following core parameters: SPDT circuit configuration, momentary (On-Mom) switch function, panel mount rear mounting type, solder lug termination, and circular panel cutout geometry. Current and voltage ratings establish operational boundaries; substitute parts must operate within or exceed the application's electrical requirements.

The three identified substitute parts—C&K 8121SDZGE, C&K 8168S2HZQE1, and C&K 8168SHZGE2—share the mandatory SPDT circuit, momentary function, panel mount rear configuration, and solder lug termination. All three maintain compatibility with the 6.35mm circular panel cutout specification, which accommodates the 6.50mm cutout requirement through standard panel mounting tolerances.

Substitution logic is based on the following allowed parameters:

• Circuit type (SPDT)
• Switch function (On-Mom)
• Mounting configuration (Panel Mount, Rear)
• Termination method (Solder Lug)
• Panel cutout compatibility (circular geometry)
• RoHS and MSL compliance status
• Product status (Active)

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active production status and ROHS3 compliance, ensuring regulatory alignment with the original 13435AD2 component. The C&K 8121SDZGE operates at reduced current capacity (1A versus 4A) and is suitable only for applications where load current does not exceed 1A. This part provides extended electrical life (60,000 cycles) and is available in bulk packaging.

The C&K 8168S2HZQE1 and C&K 8168SHZGE2 both support 6A current rating, exceeding the original 4A specification and accommodating higher-load applications. Both parts feature epoxy sealed terminals and deliver 50,000 electrical cycles. The 8168S2HZQE1 is supplied in tray packaging, while the 8168SHZGE2 is available in bulk. The 8168SHZGE2 features a black actuator cap, whereas the 8168S2HZQE1 has a white actuator cap.

All substitute parts operate within reduced temperature ranges (-30°C to 75°C or -30°C to 65°C) compared to the original part's -40°C to 85°C specification. Panel cutout diameter differences (6.35mm versus 6.50mm) are accommodated through standard panel mounting tolerances. REACH status differs between manufacturers; the original part is REACH unaffected while C&K substitutes are REACH affected.

Frequently Asked Questions (FAQ)

Q: Can the C&K 8121SDZGE replace the APEM 13435AD2 in all applications?

A: The 8121SDZGE maintains SPDT momentary function and panel mount configuration but operates at 1A maximum current. Substitution is valid only for applications where circuit current does not exceed 1A. The reduced current rating makes this part unsuitable for 4A-rated loads.

Q: What are the implications of the panel cutout diameter difference between 6.50mm and 6.35mm?

A: Standard panel mounting tolerances accommodate the 0.15mm difference. The 6.35mm cutout diameter of C&K parts fits within typical panel hole specifications designed for 6.50mm components. Physical mounting compatibility is maintained.

Q: How do operating temperature ranges affect substitution decisions?

A: The original 13435AD2 operates from -40°C to 85°C. C&K substitutes operate within -30°C to 75°C or -30°C to 65°C ranges. Substitution is valid only for applications operating within the narrower temperature window. Applications requiring -40°C operation or temperatures above 75°C require the original APEM part.

Q: What is the significance of REACH status differences?

A: The original 13435AD2 is REACH unaffected. C&K substitute parts are REACH affected, indicating they contain substances of very high concern (SVHC) listed under REACH regulations. Applications subject to REACH compliance requirements must account for this difference in regulatory status.

Q: Are there packaging format considerations for production environments?

A: The 13435AD2 and 8121SDZGE are supplied in bulk packaging. The 8168S2HZQE1 is supplied in tray packaging, which may affect automated assembly line compatibility. Bulk packaging is standard for manual assembly or reel-fed automated processes.

Q: How do electrical life ratings compare across substitute options?

A: The original 13435AD2 provides 20,000 electrical cycles. The 8121SDZGE delivers 60,000 cycles, while both 8168 series parts provide 50,000 cycles. Higher electrical life ratings indicate extended operational durability under switching conditions.

Q: Can the 6A-rated C&K parts be used in 4A applications?

A: Yes. The 8168S2HZQE1 and 8168SHZGE2 are rated for 6A and operate safely at 4A loads. Higher current ratings provide operational margin and are compatible with lower-current applications.