KAR08LGGR Equivalent & Substitute Parts

Part Overview

The KAR08LGGR is an 8-position DIP switch manufactured by E-Switch, featuring SPST (Single Pole Single Throw) circuit configuration with piano actuator, rated for 25mA at 24VDC. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1) and process-sealed construction suitable for surface mount applications.

Substiute Parts

KAR08LGGR

E-SwitchIn Stock: 875KAR08LGGR Datasheet

Current PartRFQ

KAC08LGGR

E-SwitchIn Stock: 785KAC08LGGR Datasheet

DirectRFQ

2-1571999-9

TE Connectivity ALCOSWITCH SwitchesIn Stock: 21722-1571999-9 Datasheet

DirectRFQ

CHP-081TA

Nidec Components CorporationIn Stock: 12907CHP-081TA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KAR08LGGR is determined by the following critical parameters: circuit configuration (SPST), number of positions (8), current rating (25mA minimum), voltage rating (24VDC minimum), actuator type (piano), mounting type (surface mount, right angle), and termination style (gull wing). Parts meeting these core electrical and mechanical specifications are classified as direct equivalents. Parts with deviations in current rating, voltage rating, pitch, or termination style are classified as functional alternatives requiring design verification.

Direct Equivalents (Full Parameter Alignment):

• KAC08LGGR (E-Switch): Matches circuit, positions, current, voltage, actuator, mounting, and termination. Active product status. Packaging differs (Tape & Reel vs. bulk).
• 2-1571999-9 (TE Connectivity ALCOSWITCH): Matches circuit, positions, current, voltage, actuator, mounting, and termination. Active product status. Mechanical life reduced to 1,000 cycles.

Functional Alternative (Parameter Deviations):

• CHP-081TA (Nidec Components Corporation): Differs in current rating (100mA vs. 25mA), voltage rating (6VDC vs. 24VDC), pitch (0.050" vs. 0.100"), and termination style (J Lead vs. Gull Wing). Not recommended for direct substitution without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

KAC08LGGR is the primary recommended substitute for KAR08LGGR. Both parts share identical electrical specifications (SPST, 8 positions, 25mA, 24VDC) and mechanical configuration (piano actuator, surface mount right angle, gull wing termination). KAC08LGGR maintains active product status with RoHS3 compliance and unlimited MSL rating. The primary distinction is packaging format (Tape & Reel vs. bulk). Height above board is reduced (5.10mm vs. 7.30mm), which may require PCB layout verification for clearance-critical applications.

2-1571999-9 is an acceptable direct substitute meeting all core electrical and mechanical parameters. Manufactured by TE Connectivity ALCOSWITCH, this part maintains 25mA at 24VDC rating with SPST 8-position configuration and gull wing termination. Mechanical life is reduced to 1,000 cycles compared to 2,000 cycles for KAR08LGGR, requiring evaluation against application duty cycle requirements. Operating temperature range matches the original part (-30°C ~ 85°C). RoHS3 compliance is confirmed.

CHP-081TA is not recommended as a direct substitute. Significant parameter deviations include reduced voltage rating (6VDC vs. 24VDC), increased current rating (100mA vs. 25mA), reduced pitch (0.050" vs. 0.100"), and J Lead termination (vs. gull wing). These differences require circuit redesign and PCB layout modification, making this part unsuitable for direct replacement applications.

Frequently Asked Questions (FAQ)

Q: Can KAC08LGGR be used as a direct replacement for KAR08LGGR in existing designs?

A: Yes. KAC08LGGR meets all critical electrical specifications (SPST, 8 positions, 25mA, 24VDC) and mechanical requirements (piano actuator, surface mount right angle, gull wing termination). The reduced height above board (5.10mm vs. 7.30mm) requires verification that PCB clearances and component placement remain compatible. Packaging format differs (Tape & Reel vs. bulk), which affects procurement and assembly processes but not electrical performance.

Q: What is the difference between KAC08LGGR and 2-1571999-9?

A: Both parts are electrically equivalent for the KAR08LGGR application, meeting 25mA at 24VDC specifications with SPST 8-position configuration. The primary difference is manufacturer (E-Switch vs. TE Connectivity ALCOSWITCH) and mechanical life rating (2,000 cycles vs. 1,000 cycles). Applications requiring extended cycle life should prioritize KAC08LGGR. Height above board differs slightly (5.10mm vs. 6.93mm), requiring PCB layout verification.

Q: Why is CHP-081TA not suitable as a substitute?

A: CHP-081TA deviates significantly from KAR08LGGR specifications. The voltage rating is reduced to 6VDC (vs. 24VDC required), making it incompatible with 24VDC circuit designs. Pitch is halved (0.050" vs. 0.100"), and termination style differs (J Lead vs. gull wing), requiring PCB redesign. Current rating is increased to 100mA, which does not address the 25mA requirement. This part is suitable only for applications with different electrical and mechanical requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. KAC08LGGR, 2-1571999-9, and CHP-081TA are all RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the compliance profile of KAR08LGGR.

Q: What packaging options are available for substitute parts?

A: KAC08LGGR is supplied in Tape & Reel (TR) packaging. 2-1571999-9 is supplied in Cut Tape (CT) packaging. Packaging selection affects assembly process compatibility and procurement logistics but does not impact electrical or mechanical performance.