P01-12B-1B Equivalent & Substitute Parts

Part Overview

The P01-12B-1B is an incandescent panel indicator manufactured by NKK Switches, designed for 12V applications with a 50mA current rating. This component features a white 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 necessary for ongoing system maintenance and new design implementations.

Substiute Parts

P01-12B-1B

NKK SwitchesIn Stock: 1105P01-12B-1B Datasheet

Current PartRFQ

UB204KW036B-3JB

NKK SwitchesIn Stock: 1124UB204KW036B-3JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The UB204KW036B-3JB serves as a substitute for the P01-12B-1B based on the following substitution criteria:

Common Functional Parameters:

• Lamp color: White
• Lens color: White
• Lens transparency: Diffused
• Lens style: Flat top configuration
• Panel mounting compatibility: Both feature rectangular/square panel cutout designs within compatible dimensional ranges
• Regulatory compliance: Both maintain REACH Unaffected status and EAR99 ECCN classification

Substitution Basis: The UB204KW036B-3JB replaces the incandescent technology of the P01-12B-1B with LED technology, maintaining visual output characteristics (white diffused illumination) while operating at reduced voltage (3.3V) and current (20mA). Panel cutout dimensions are compatible within standard installation tolerances.

Parameter Comparison

Engineering Selection Recommendations

The P01-12B-1B is classified as obsolete, necessitating substitution for new procurement and system continuity. The UB204KW036B-3JB is the designated equivalent, currently in active production status with full inventory availability.

Selection Basis:

• The substitute maintains identical visual output characteristics (white diffused illumination)
• Both components share equivalent regulatory compliance profiles (REACH Unaffected, EAR99)
• The substitute achieves ROHS3 compliance, meeting current environmental standards
• Panel mounting compatibility is maintained within standard installation tolerances
• The substitute operates at reduced power consumption (60% reduction in current draw)

Implementation Consideration: Substitution requires circuit redesign to accommodate the reduced voltage requirement (3.3V versus 12V) and current draw (20mA versus 50mA). Power supply and current-limiting resistor values must be recalculated for the LED-based substitute.

Frequently Asked Questions (FAQ)

Q: Can the UB204KW036B-3JB be directly installed in place of the P01-12B-1B without circuit modification?

A: No. The substitute operates at 3.3V with 20mA current rating, compared to the original 12V/50mA specification. Circuit redesign is required, including power supply voltage adjustment and current-limiting resistor recalculation.

Q: Are the panel cutout dimensions compatible between these two parts?

A: The panel cutout dimensions differ slightly. The P01-12B-1B requires a 0.66" x 0.74" rectangular opening, while the UB204KW036B-3JB requires a 0.69" x 0.69" square opening. Panel modification may be necessary depending on existing mechanical tolerances.

Q: What is the primary advantage of substituting the incandescent P01-12B-1B with the LED UB204KW036B-3JB?

A: The LED substitute reduces power consumption by 60% (20mA versus 50mA), improves operational lifespan, and achieves ROHS3 environmental compliance. The white diffused lens maintains equivalent visual output.

Q: Are both parts subject to the same regulatory classifications?

A: Yes. Both components maintain REACH Unaffected status and EAR99 ECCN classification. The substitute additionally achieves ROHS3 compliance.

Q: What inventory status applies to these components?

A: The P01-12B-1B (obsolete) has 996 units in stock. The UB204KW036B-3JB (active) has 1031 units in stock, ensuring availability for new designs and replacements.