KAJ02TGGT Equivalent & Substitute Parts

Part Overview

The KAJ02TGGT is a DIP slide switch manufactured by E-Switch, configured as a single-pole single-throw (SPST) switch with 2 positions. It is rated for 25mA at 24VDC and features surface mount gull wing termination with a flush, recessed slide actuator. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

KAJ02TGGT

E-SwitchIn Stock: 1033KAJ02TGGT Datasheet

Current PartRFQ

SDA02H1BD

C&KIn Stock: 36116SDA02H1BD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KAJ02TGGT is determined by the following critical parameters:

• Circuit Configuration: SPST topology must be maintained
• Electrical Ratings: 25mA current and 24VDC voltage ratings are functional requirements
• Number of Positions: 2-position switch configuration
• Pitch Spacing: 0.100" (2.54mm) pitch for PCB layout compatibility
• Operating Temperature: -40°C to 85°C range
• Compliance: ROHS3 and REACH compliance status

The SDA02H1BD from C&K meets these core electrical and functional requirements. However, this substitute differs in mounting technology (through hole versus surface mount) and termination style (PC pin versus gull wing), which represent design trade-offs requiring circuit board layout evaluation.

Parameter Comparison

Engineering Selection Recommendations

The SDA02H1BD qualifies as a functional substitute based on matching electrical specifications (25mA, 24VDC, SPST, 2-position) and compliance certifications (ROHS3, REACH Unaffected). Both components operate across the identical temperature range and maintain gold-plated contacts for signal integrity.

Design integration requires evaluation of the following differences:

• Mounting Technology: The KAJ02TGGT uses surface mount gull wing termination; the SDA02H1BD requires through-hole PCB mounting. This necessitates circuit board redesign if direct footprint replacement is required.
• Mechanical and Electrical Life: The KAJ02TGGT is rated for 2,000 cycles; the SDA02H1BD is rated for 1,000 cycles. Applications requiring extended cycle life should account for this difference.
• Contact Material: The KAJ02TGGT uses copper alloy contacts; the SDA02H1BD uses beryllium copper. Both materials are gold-finished and suitable for 24VDC switching applications.

Selection of the SDA02H1BD is appropriate for applications where through-hole mounting is acceptable and cycle life requirements do not exceed 1,000 operations.

Frequently Asked Questions (FAQ)

Q: Can the SDA02H1BD be used as a direct drop-in replacement for the KAJ02TGGT?

A: No. The KAJ02TGGT is surface mount with gull wing termination; the SDA02H1BD is through-hole with PC pins. Direct PCB footprint replacement is not possible without circuit board redesign.

Q: Are the electrical ratings identical between these two switches?

A: Yes. Both components are rated for 25mA at 24VDC with SPST configuration and 2-position operation. Operating temperature ranges are identical (-40°C to 85°C).

Q: What is the significance of the different mechanical life ratings?

A: The KAJ02TGGT is rated for 2,000 mechanical and electrical cycles; the SDA02H1BD is rated for 1,000 cycles. Applications requiring frequent actuation should verify that 1,000 cycles meets operational requirements.

Q: Are both components RoHS compliant?

A: Yes. Both the KAJ02TGGT and SDA02H1BD are ROHS3 compliant and REACH unaffected.

Q: What is the difference in contact material between these switches?

A: The KAJ02TGGT uses copper alloy contacts; the SDA02H1BD uses beryllium copper contacts. Both are gold-plated and suitable for low-voltage DC switching applications at the specified ratings.

Q: Why is the KAJ02TGGT classified as obsolete?

A: The KAJ02TGGT is no longer in active production by E-Switch. The SDA02H1BD from C&K is an active product with equivalent electrical specifications and compliance certifications.