KAJ02LHGT DIP Switch Equivalent & Substitute Parts

Part Overview

The KAJ02LHGT is a single-pole single-throw (SPST) DIP switch manufactured by E-Switch, designed for through-hole mounting applications requiring low-current switching at 24VDC. This component features a slide actuator with gold-plated copper alloy contacts and is rated for 25mA at 24VDC with 2,000 mechanical and electrical life cycles.

The KAJ02LHGT is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

KAJ02LHGT

E-SwitchIn Stock: 731KAJ02LHGT Datasheet

Current PartRFQ

NDI02H

APEM Inc.In Stock: 791NDI02H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KAJ02LHGT is determined by strict equivalence across the following critical parameters:

Circuit configuration must remain SPST with 2 positions. Electrical ratings must match or exceed the 25mA current and 24VDC voltage specifications. Actuator type and termination style (slide actuator, PC pin through-hole) must be identical to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes. Contact material and finish specifications (copper alloy with gold plating) establish baseline performance for signal integrity and corrosion resistance.

The NDI02H from APEM Inc. satisfies all mandatory substitution criteria. Both components share identical circuit configuration, position count, current rating, voltage rating, actuator type, contact material, contact finish, mounting type, termination style, and pitch specifications. Both components are RoHS3 compliant and carry MSL 1 ratings.

Parameter Comparison

Engineering Selection Recommendations

The NDI02H is a direct functional equivalent to the KAJ02LHGT and is suitable for substitution in new designs and production continuity applications. The NDI02H carries active product status from APEM Inc., ensuring ongoing availability and supply chain support compared to the obsolete KAJ02LHGT.

Both components maintain ROHS3 compliance and MSL 1 ratings, satisfying regulatory and environmental requirements. The NDI02H operates across a narrower temperature range (-20°C to 85°C versus -40°C to 85°C), which is acceptable for most standard industrial and commercial applications. The height above board difference (0.197" versus 0.165") is a minor mechanical variation that does not affect electrical performance or standard PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the NDI02H replace the KAJ02LHGT in existing designs?

A: Yes. Both components share identical electrical specifications (SPST, 2 positions, 25mA, 24VDC), actuator type (slide), contact material and finish (copper alloy, gold), mounting method (through-hole PC pin), and pitch (0.100"). The minor height difference does not impact standard PCB layouts.

Q: What is the primary reason for substitution?

A: The KAJ02LHGT is obsolete. The NDI02H is an active product from APEM Inc., providing assured supply chain availability and ongoing manufacturer support.

Q: Are there compliance differences between these parts?

A: No. Both components are ROHS3 compliant and carry MSL 1 ratings. Regulatory and environmental compliance requirements are equivalent.

Q: Does the operating temperature range difference affect compatibility?

A: The NDI02H operates from -20°C to 85°C compared to the KAJ02LHGT range of -40°C to 85°C. For applications requiring operation below -20°C, the KAJ02LHGT specifications must be maintained. For standard industrial and commercial temperature ranges, the NDI02H is fully compatible.

Q: Are packaging considerations important for substitution?

A: The KAJ02LHGT is supplied in standard packaging, while the NDI02H is supplied in tube packaging. Both formats are compatible with standard assembly processes. Verify packaging requirements with your procurement or assembly department if specific handling or storage protocols apply.