SLB124145 Equivalent & Substitute Parts

Part Overview

The SLB124145 is a slide switch manufactured by APEM Inc., configured as a Single Pole Double Throw (SPDT) switch rated for 300mA at 125V AC. This through-hole mounted component features epoxy sealed terminals and is designed for On-On switching applications. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

SLB124145

APEM Inc.In Stock: 1189SLB124145 Datasheet

Current PartRFQ

1825255-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10111825255-1 Datasheet

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1825255-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8871825255-2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLB124145 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

• Circuit configuration (SPDT)
• Switch function (On-On)
• Current rating capability (minimum 300mA)
• Voltage rating (minimum 125V AC)
• Mounting type (Through Hole)
• Termination style (PC Pin)
• Physical dimensions (Actuator length 4.50mm, Switch travel 4.00mm)
• Operating temperature range (-20°C to 85°C)

Substitute Parts Identified:

Group 1 - Full Electrical Equivalent:

• 1825255-1 (TE Connectivity ALCOSWITCH Switches): Meets all critical electrical parameters with 300mA AC rating at 125V, identical physical dimensions, and compatible through-hole PC pin termination. Contact timing specified as Shorting (MBB). Enhanced mechanical life (15,000 cycles) and operating force (600gf) provide improved performance margins.

Group 2 - Reduced Electrical Rating:

• 1825255-2 (TE Connectivity ALCOSWITCH Switches): Shares identical physical form factor and mounting characteristics but operates at reduced voltage (20V AC/DC) and current (0.4VA). Not suitable for direct substitution in applications requiring 125V AC or 30V DC operation.

Parameter Comparison

Engineering Selection Recommendations

1825255-1 Substitution Eligibility:

The 1825255-1 qualifies as a direct electrical and mechanical substitute for the SLB124145. Both components share identical voltage ratings (125V AC), current capacity (300mA), physical dimensions (4.50mm actuator length, 4.00mm travel), and mounting configuration (through-hole PC pin). Both maintain ROHS3 compliance and operate across the same temperature range (-20°C to 85°C). The 1825255-1 is manufactured by TE Connectivity ALCOSWITCH Switches and maintains active product status, ensuring ongoing availability and supply chain continuity. The enhanced electrical life rating (15,000 cycles versus 10,000 cycles) provides additional operational margin without introducing compatibility concerns.

1825255-2 Non-Substitution:

The 1825255-2 is not suitable as a substitute due to insufficient voltage and current ratings. The 20V AC/DC maximum voltage and 0.4VA current rating fall below the SLB124145 specifications of 125V AC and 300mA, making this component incompatible with applications designed for the original part.

Frequently Asked Questions (FAQ)

Q: Can the 1825255-1 be used as a direct replacement for the SLB124145?

A: Yes. The 1825255-1 meets all critical electrical parameters (300mA at 125V AC), maintains identical physical dimensions and mounting configuration, and operates across the same temperature range. Both components are ROHS3 compliant and feature through-hole PC pin termination suitable for PCB assembly.

Q: What is the difference between the 1825255-1 and 1825255-2?

A: The 1825255-1 maintains the 300mA at 125V AC rating required for SLB124145 substitution. The 1825255-2 operates at reduced specifications (0.4VA at 20V AC/DC) and is not electrically equivalent. Selection depends on application voltage and current requirements.

Q: Are there packaging differences between the SLB124145 and 1825255-1?

A: The SLB124145 is listed with packaging designation "-" while the 1825255-1 is supplied in Bulk packaging. Both components use identical through-hole PC pin termination and physical form factor suitable for standard PCB assembly processes.

Q: Does the 1825255-1 have superior performance characteristics?

A: The 1825255-1 provides enhanced electrical life (15,000 cycles versus 10,000 cycles) and higher operating force (600gf versus 220gf), offering improved durability margins. These enhancements do not introduce compatibility issues and support extended operational life in switching applications.

Q: What compliance certifications apply to substitute parts?

A: The 1825255-1 maintains ROHS3 compliance matching the original SLB124145. The 1825255-2 RoHS status is listed as Not Applicable. Both parts carry EAR99 ECCN classification and share identical HTSUS code (8536.50.9050).