Equivalent & Substitute Parts Reference for PLKB3120

Part Overview

The APEM Inc. PLKB3120 is a 2 Position SPDT Keylock Switch rated for 500mA (DC) at 30 VDC, intended for panel mount applications. It is part of the PLK series, supplied in tray packaging, and features on-on switch function, flat key actuator, and a single removable key position. The PLKB3120 is listed as Obsolete. When dealing with product discontinuation, engineers must identify alternative keylock switches with matching electrical, mechanical, and compliance parameters to maintain system integrity and design continuity.

Substiute Parts

PLKB3120

APEM Inc.In Stock: 1097PLKB3120 Datasheet

Current PartRFQ

Y101132C203NQ

C&KIn Stock: 2266Y101132C203NQ Datasheet

SimilarRFQ

Y1011U2C203NQ

C&KIn Stock: 6576Y1011U2C203NQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute switch selection for PLKB3120 is based strictly on the following allowed parameters: circuit configuration (SPDT), number of positions (2), switch function (On-On), actuator type (Flat Key), panel mounting, termination style (Solder Lug), electrical life (10,000 Cycles), RoHS and MSL compliance, angle of throw (90°), and similar voltage/current ratings. Only parts matching these criteria are included as substitutes.

Parameter Comparison

Engineering Selection Recommendations

The PLKB3120 is classified as Obsolete. The suggested substitutes, Y101132C203NQ and Y1011U2C203NQ from C&K, are Active and meet RoHS3 and MSL 1 (Unlimited) criteria. Both substitute parts maintain the same electrical life specification (10,000 Cycles) and are categorized as EAR99 for ECCN compliance. Users should note REACH status differences. Panel cutout dimensions and contact materials should be aligned with application requirements.

Frequently Asked Questions (FAQ)

Q: What are the main criteria for substituting PLKB3120?
A: SPDT circuit, 2 positions, on-on switch function, flat key actuator, panel mount, solder lug termination, similar electrical life, compliance certifications, and comparable electrical ratings.

Q: Are the panel cutout dimensions identical?
A: PLKB3120 specifies a circular 16.00mm diameter, while both substitute parts specify 19.30mm diameter. Review mechanical compatibility for panel mounting.

Q: Do the substitute parts support the same key removable positions?
A: Y101132C203NQ matches with "1 only" key removable positions. Y1011U2C203NQ provides "all" positions removable.

Q: Is there any difference in compliance or certification status?
A: All listed parts are RoHS3 compliant and have MSL 1 (Unlimited). REACH status differs, as PLKB3120 is unaffected while substitute parts are affected.

Q: How do the electrical ratings compare?
A: Substitute parts offer higher current ratings (4A vs. 500mA) and slightly lower DC voltage (28 VDC vs. 30 VDC).

Q: Is the switching life comparable?
A: All models specify 10,000 cycles electrical life.

Q: Are there differences in contact materials?
A: PLKB3120 uses brass contacts; substitutes use copper. Contact finish for all is silver.