LB25RKW01-05-JC Equivalent & Substitute Parts

Part Overview

The LB25RKW01-05-JC is a standard illuminated pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with panel mount, snap-in installation. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system maintenance and new design implementations. The switch is rated for 3A at 125V AC and includes incandescent red illumination at 5VAC nominal voltage.

Substiute Parts

LB25RKW01-05-JC

NKK SwitchesIn Stock: 1092LB25RKW01-05-JC Datasheet

Current PartRFQ

LB25RKW01-5C05-JC

NKK SwitchesIn Stock: 1117LB25RKW01-5C05-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LB25RKW01-05-JC is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Current and voltage ratings (3A AC/DC, 125V AC, 30V DC)
• Mounting type and panel cutout dimensions (Panel Mount, Snap-In; 22.40mm x 16.20mm)
• Switch function (On-Mom momentary operation)
• Actuator type and color (Rectangular button, clear with red filter/diffuser)
• Termination style (Solder, Quick Connect - 0.110")
• Operating temperature range (-25°C to 50°C)
• Mechanical and electrical life ratings (1,000,000 and 100,000 cycles respectively)
• RoHS compliance status

The identified substitute part LB25RKW01-5C05-JC maintains full compatibility across all mechanical and electrical parameters. The primary distinction is the illumination technology: the substitute employs LED red illumination at 5VDC nominal voltage, whereas the original uses incandescent red illumination at 5VAC nominal voltage. This difference does not affect switch functionality or electrical ratings.

Parameter Comparison

Engineering Selection Recommendations

The LB25RKW01-5C05-JC is the direct functional equivalent for the obsolete LB25RKW01-05-JC. Both components are ROHS3 compliant and maintain identical electrical and mechanical specifications across all critical parameters. The substitute part is currently in active production status, ensuring availability for replacement and new applications.

The transition from incandescent to LED illumination in the substitute part represents a technology advancement with no negative impact on system compatibility. LED illumination operates at 5VDC nominal voltage compared to the original 5VAC specification. System designers must verify that the illumination voltage supply in their application can accommodate this change. Both illumination technologies produce equivalent red visual output and operate within the same panel cutout dimensions.

Frequently Asked Questions (FAQ)

Q: Can LB25RKW01-5C05-JC directly replace LB25RKW01-05-JC in existing applications?

A: Yes. Both parts share identical DPDT circuitry, 3A current rating, 125V AC and 30V DC voltage ratings, panel mount snap-in configuration, and panel cutout dimensions. The primary consideration is the illumination voltage: the substitute requires 5VDC supply instead of 5VAC. Verify your application's illumination circuit can provide DC voltage before substitution.

Q: What is the difference between incandescent and LED illumination in these switches?

A: The original LB25RKW01-05-JC uses incandescent illumination at 5VAC nominal voltage. The substitute LB25RKW01-5C05-JC uses LED illumination at 5VDC nominal voltage. Both produce red light output. LED technology offers longer operational life and lower power consumption. The visual appearance and brightness are equivalent for panel indication purposes.

Q: Are the panel cutout dimensions identical between these parts?

A: Yes. Both the original and substitute parts require a rectangular panel cutout of 22.40mm x 16.20mm. No mechanical modification to the panel is necessary when substituting between these parts.

Q: What is the significance of the product status change from Obsolete to Active?

A: The original LB25RKW01-05-JC is classified as obsolete, indicating NKK Switches no longer manufactures this specific variant. The substitute LB25RKW01-5C05-JC is in active production, ensuring reliable availability for procurement and future applications. Existing inventory of the original part may be limited.

Q: Do both parts use the same termination style?

A: Yes. Both components use Solder and Quick Connect termination with 0.110" (2.8mm) connector spacing. No changes to circuit board layout or wiring are required when substituting between these parts.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant. The substitute part includes REACH Unaffected status in its specification. Both carry identical ECCN (EAR99) and HTSUS (8536.50.9031) classifications.