P01-12C-1B Equivalent & Substitute Parts

Part Overview

The P01-12C-1B is an incandescent panel indicator manufactured by NKK Switches, designed for 12V applications with a 50mA current rating. This component features a red diffused lens with a rectangular panel cutout measuring 0.66" x 0.74" (16.70mm x 18.70mm). The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

P01-12C-1B

NKK SwitchesIn Stock: 1132P01-12C-1B Datasheet

Current PartRFQ

UB204KW035C-3JC

NKK SwitchesIn Stock: 823UB204KW035C-3JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P01-12C-1B requires evaluation of the following critical parameters:

Optical Compatibility: Lamp color (red), lens color (red), and lens transparency (diffused) must match to maintain visual consistency in panel applications.

Mechanical Compatibility: Panel cutout shape and dimensions determine physical fit. The rectangular cutout of 0.66" x 0.74" (16.70mm x 18.70mm) establishes the mounting envelope constraint.

Electrical Compatibility: Voltage and current ratings must be compatible with the circuit design. The 12V, 50mA specification defines the power supply requirements.

Regulatory Compliance: REACH status and moisture sensitivity level ensure compliance with applicable standards and environmental conditions.

The substitute part UB204KW035C-3JC is identified as functionally equivalent based on matching optical characteristics (red diffused lens), compatible mechanical dimensions (square cutout 0.69" x 0.69" with 15.00mm lens), and regulatory compliance (REACH Unaffected, MSL 1). The transition from incandescent to LED technology provides improved reliability and reduced power consumption while maintaining the same visual output function.

Parameter Comparison

Engineering Selection Recommendations

The P01-12C-1B is obsolete and no longer in active production. The UB204KW035C-3JC is the identified equivalent substitute, currently in active production status with full inventory availability.

Compliance Considerations: Both parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard industrial and commercial applications.

Regulatory Status: The substitute part carries RoHS3 compliance certification, meeting current environmental and hazardous substance restrictions.

Availability: The substitute part is available in active production with 779 units in stock, compared to the obsolete main part with 1062 units remaining in inventory.

Frequently Asked Questions (FAQ)

Q: Can UB204KW035C-3JC directly replace P01-12C-1B in existing designs?

A: Direct mechanical replacement requires panel cutout modification. The main part uses a rectangular cutout (0.66" x 0.74"), while the substitute uses a square cutout (0.69" x 0.69"). Electrical circuit redesign is necessary due to voltage difference (12V to 1.85V) and current reduction (50mA to 30mA).

Q: What are the key differences between these parts?

A: The primary differences are technology type (incandescent versus LED), voltage rating (12V versus 1.85V), current consumption (50mA versus 30mA), and panel cutout geometry (rectangular versus square). Both maintain identical optical characteristics (red diffused lens) and regulatory compliance.

Q: Are there any compatibility concerns with the lens dimensions?

A: The main part lens measures 16.20mm x 16.00mm (rectangular), while the substitute lens measures 15.00mm (square). Visual appearance and light output characteristics differ due to geometry variation. Panel bezel design may require adjustment.

Q: What is the impact of voltage and current rating differences?

A: The substitute operates at significantly lower voltage (1.85V versus 12V) and current (30mA versus 50mA). Circuit power supply and current-limiting components must be redesigned to accommodate LED operation. This typically results in reduced power consumption and improved system efficiency.

Q: Are both parts compliant with current environmental standards?

A: Yes. Both parts maintain REACH Unaffected status and MSL 1 rating. The substitute additionally carries RoHS3 compliance certification, meeting current hazardous substance restrictions.