SLB1340R45 Equivalent & Substitute Parts

Part Overview

The SLB1340R45 is a slide switch with SP3T (single pole, three throw) configuration manufactured by APEM Inc. This through-hole, right-angle mounted switch is rated for 300mA at 125V AC and 30V DC, with an actuator length of 4.50mm and epoxy sealed terminals. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

SLB1340R45

APEM Inc.In Stock: 844SLB1340R45 Datasheet

Current PartRFQ

1825256-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8181825256-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SLB1340R45 is based on matching the following critical electrical and mechanical parameters:

• Circuit topology: SP3T configuration required for identical switching function
• Current and voltage ratings: 300mA at 125V AC minimum to maintain electrical compatibility
• Physical form factor: Through-hole, right-angle mounting with 4.50mm actuator length for PCB fit
• Switch travel and actuator geometry: 2.00mm travel distance to ensure mechanical compatibility with existing mechanical interfaces
• Operating temperature range: -20°C to 85°C to support the same environmental conditions
• Termination style: PC pin termination for direct PCB mounting compatibility
• Regulatory compliance: ROHS3 compliance and REACH unaffected status for supply chain continuity

The substitute part 1825256-3 from TE Connectivity ALCOSWITCH Switches meets all these critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The 1825256-3 is a direct functional equivalent for the obsolete SLB1340R45. Both components share identical circuit topology, current rating, AC voltage rating, physical form factor, and operating temperature range. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability.

The 1825256-3 demonstrates superior electrical life performance (15,000 cycles versus 10,000 cycles), providing extended operational durability. Both components maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements without modification to existing designs.

The DC voltage rating specification difference (30V for SLB1340R45 versus not specified for 1825256-3) does not present a substitution barrier for applications operating within the specified AC voltage envelope. For DC-only applications, the DC voltage rating of the substitute part should be confirmed with the manufacturer prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the 1825256-3 be used as a direct replacement for the SLB1340R45 in existing designs?

A: Yes. Both components share identical SP3T circuit configuration, 300mA current rating, 125V AC voltage rating, 4.50mm actuator length, 2.00mm switch travel, and through-hole right-angle mounting. Physical and electrical compatibility is established across all critical parameters.

Q: What is the difference in electrical life between these components?

A: The SLB1340R45 is rated for 10,000 electrical cycles, while the 1825256-3 is rated for 15,000 electrical cycles. The substitute part provides 50% greater cycle life, which extends component durability in high-cycle applications.

Q: Are there packaging differences between these parts?

A: The SLB1340R45 is supplied with unspecified packaging, while the 1825256-3 is supplied in bulk packaging. Packaging format does not affect component functionality or PCB compatibility.

Q: Do both components meet current regulatory requirements?

A: Yes. Both the SLB1340R45 and 1825256-3 are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component procurement and use.

Q: What is the contact timing specification for the 1825256-3?

A: The 1825256-3 features shorting contact timing (MBB - Make Before Break), which ensures continuity is maintained during switching transitions. This specification is not provided for the original SLB1340R45.