SLB234145 Equivalent & Substitute Parts

Part Overview

The SLB234145 is a slide switch with DP3T (Double Pole Triple Throw) circuit configuration manufactured by APEM Inc. This through-hole mounted switch is rated for 300mA at 125V AC and 30V DC, featuring an epoxy-sealed design with silver contact finish. The part is classified as obsolete, making equivalent substitutes necessary for ongoing procurement and system maintenance.

Substiute Parts

SLB234145

APEM Inc.In Stock: 840SLB234145 Datasheet

Current PartRFQ

1825289-8

TE Connectivity ALCOSWITCH SwitchesIn Stock: 22281825289-8 Datasheet

SimilarRFQ

1825289-9

TE Connectivity ALCOSWITCH SwitchesIn Stock: 26901825289-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLB234145 is determined by the following critical parameters:

• Circuit configuration must be DP3T
• Switch function must be On-On-On
• Mounting type must be Through Hole
• Termination style must be PC Pin
• Actuator length must be 4.50mm
• Operating temperature range must encompass -20°C to 85°C
• RoHS3 compliance required

The substitute parts identified (1825289-8 and 1825289-9) share the core DP3T circuit topology and through-hole PC pin termination. However, electrical ratings and contact materials differ between candidates, requiring parameter-level evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

1825289-8 (TE Connectivity ALCOSWITCH Switches)

This part maintains electrical rating parity with the SLB234145 at 300mA and 125V AC. Active product status ensures ongoing availability and supply chain stability. ROHS3 compliance is confirmed. The substitute exhibits improved electrical life (15,000 cycles versus 10,000 cycles) and implements MBB (Make-Before-Break) contact timing. Switch travel is reduced to 2.00mm and operating force increases to 600gf, representing mechanical differences that must be evaluated against application requirements.

1825289-9 (TE Connectivity ALCOSWITCH Switches)

This part is rated for 0.4VA at 20V AC/DC, representing a significant reduction in electrical capacity compared to the SLB234145 (300mA at 125V AC). Product status is obsolete, matching the original part. Gold contact finish provides enhanced corrosion resistance relative to silver. This substitute is suitable only for applications with substantially lower voltage and current requirements.

Frequently Asked Questions (FAQ)

Q: Can 1825289-8 directly replace SLB234145 in all applications?

A: 1825289-8 maintains the same circuit topology (DP3T), voltage rating (125V AC), and current rating (300mA AC). However, switch travel differs (2.00mm versus 3.20mm) and operating force is higher (600gf versus 220gf). Mechanical compatibility with the PCB layout and actuator engagement force requirements must be confirmed before substitution.

Q: What are the key differences between 1825289-8 and 1825289-9?

A: 1825289-8 is rated for 300mA at 125V AC, matching the original SLB234145 electrical specifications. 1825289-9 is rated for 0.4VA at 20V AC/DC, representing lower electrical capacity. 1825289-8 has active product status, while 1825289-9 is obsolete. Contact finish differs: 1825289-8 uses silver, 1825289-9 uses gold.

Q: Is 1825289-9 suitable as a substitute for the SLB234145?

A: 1825289-9 is suitable only for applications operating at 20V or lower with current requirements not exceeding 0.4VA. Applications requiring 125V AC or 300mA operation cannot use this substitute due to electrical rating limitations.

Q: What compliance certifications apply to these substitutes?

A: Both 1825289-8 and 1825289-9 are ROHS3 compliant. 1825289-8 has confirmed REACH Unaffected status. 1825289-9 lists REACH status as Vendor Undefined. Both parts carry ECCN EAR99 classification.

Q: How do mechanical differences affect substitution?

A: Switch travel is reduced from 3.20mm to 2.00mm in both TE Connectivity substitutes. Operating force increases from 220gf to 600gf. These differences may affect tactile feedback, PCB clearance requirements, and actuator engagement characteristics. Physical validation is necessary for applications with tight mechanical constraints.