LED Panel Indicator PM5UBWC Equivalent & Substitute Parts

Part Overview

The PM5UBWC is a 5mm LED panel indicator manufactured by Bivar Inc., featuring a blue light-emitting element with a clear domed lens. This component is designed for panel-mount applications requiring a 3.7V nominal forward voltage and 76mA maximum current rating. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements. Substitute parts must maintain compatibility with the 0.25" (6.35mm) round panel cutout and preserve the optical and electrical characteristics required for the application.

Substiute Parts

PM5UBWC

Bivar Inc.In Stock: 1250PM5UBWC Datasheet

Current PartRFQ

5596001007F

DialightIn Stock: 10345596001007F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PM5UBWC are identified based on strict alignment with the following critical parameters:

Mechanical Compatibility Requirements:

• Panel cutout shape must be round
• Panel cutout dimensions must be 0.25" (6.35mm)
• Lens size must be 5mm, T-1 3/4
• Lens style must be round with domed top

Optical Requirements:

• Lamp color must be blue
• Lens color must be colorless
• Lens transparency must be clear
• Wavelength peak must fall within the blue spectrum range

Electrical Compatibility:

• Forward voltage (Vf) must be compatible with 3.7V nominal circuit design
• Maximum current (If) rating must accommodate circuit current requirements
• Brightness level (millicandela rating) should support intended visibility function

The substitute part 5596001007F from Dialight meets the mechanical and optical requirements. Electrical parameters show minor variations in voltage (3.6V vs. 3.7V) and current (30mA vs. 76mA), which represent differences in device characteristics rather than incompatibility. The substitute part operates at lower current and slightly lower voltage, making it suitable for applications where the circuit can accommodate these specifications.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The 5596001007F from Dialight is a direct mechanical substitute for the PM5UBWC. Both components share identical panel cutout dimensions (0.25" / 6.35mm round), lens size (5mm T-1 3/4), and lens style (round with domed top). Optical characteristics are matched: both feature blue lamps with colorless clear lenses and operate within the blue spectrum wavelength range (468nm vs. 470nm).

Electrical Considerations:

The substitute part operates at 3.6V nominal forward voltage compared to the original 3.7V specification, representing a 0.1V difference. The maximum current rating is 30mA for the substitute versus 76mA for the original. Circuit designs must accommodate these electrical characteristics. Applications designed for the original 76mA current requirement will operate the substitute at lower current levels, which is electrically permissible.

Optical Performance:

The substitute provides 1500mcd brightness compared to the original 2500mcd. This represents a reduction in light output. The substitute features a 30° viewing angle compared to the original 15°, providing a wider field of view. Selection between these parts depends on whether the application requires the specific brightness and viewing angle characteristics of the original design.

Product Status and Compliance:

The original PM5UBWC is classified as obsolete, making the active-status 5596001007F the appropriate choice for new procurement. The substitute meets ROHS3 compliance and maintains identical moisture sensitivity level (MSL 1 - Unlimited) and export classification (EAR99) as the original.

Termination and Packaging:

The substitute includes wire leads (14" / 355.60mm) and is supplied in bulk packaging, differing from the original part specification. These characteristics must be evaluated against application requirements for lead length and packaging format.

Frequently Asked Questions (FAQ)

Q: Can the 5596001007F directly replace the PM5UBWC in existing designs?

A: Mechanical compatibility is confirmed through identical panel cutout dimensions and lens form factor. Electrical compatibility depends on circuit design parameters. The substitute operates at 3.6V (vs. 3.7V) and 30mA maximum (vs. 76mA), which must be evaluated against the specific circuit requirements. Optical performance differs in brightness (1500mcd vs. 2500mcd) and viewing angle (30° vs. 15°).

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Brightness - the substitute is 1000mcd less bright; (2) Viewing angle - the substitute has a wider 30° angle versus 15°; (3) Current rating - the substitute operates at lower maximum current (30mA vs. 76mA); (4) Voltage - minor 0.1V difference (3.6V vs. 3.7V); (5) Termination - the substitute includes 14" wire leads; (6) Product status - the substitute is active while the original is obsolete.

Q: Are the panel cutout dimensions identical?

A: Yes. Both parts require a 0.25" (6.35mm) round panel cutout. Mechanical mounting compatibility is confirmed.

Q: Does the substitute meet environmental and compliance requirements?

A: The substitute meets ROHS3 compliance and maintains the same moisture sensitivity level (MSL 1 - Unlimited) as the original. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Q: What should be considered when selecting between these parts?

A: Evaluate circuit voltage and current requirements against the substitute's 3.6V and 30mA specifications. Assess whether the reduced brightness (1500mcd vs. 2500mcd) meets visibility requirements. Determine if the wider viewing angle (30° vs. 15°) is acceptable or beneficial for the application. Confirm that the 14" wire lead length is suitable for the panel mounting configuration.

Q: Is the wavelength difference significant?

A: The wavelength difference is 2nm (468nm vs. 470nm), both within the blue spectrum. This represents a minor variation in color perception and is not considered significant for most applications.

Q: What is the inventory status of these parts?

A: The original PM5UBWC has 1148 pieces in stock as new original inventory. The substitute 5596001007F has 944 pieces in stock as new original inventory. Both are available for procurement.