PM5YT LED Panel Indicator Yellow - Equivalent & Substitute Parts

Part Overview

The PM5YT is a panel-mounted LED indicator manufactured by Bivar Inc., featuring a yellow lamp with clear lens transparency. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing applications requiring yellow LED panel indicators with 590nm wavelength output.

The PM5YT delivers 40mcd brightness at 2V forward voltage and 30mA maximum current, housed in a 5mm T-1 3/4 lens package with round domed top design. The 0.25" (6.35mm) round panel cutout accommodates standard panel mounting configurations.

Substiute Parts

PM5YT

Bivar Inc.In Stock: 829PM5YT Datasheet

Current PartRFQ

PM5YD

Bivar Inc.In Stock: 970PM5YD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete PM5YT is based on strict parameter alignment within the PM5 series. The primary substitute, PM5YD, maintains compatibility through the following critical parameters:

Electrical Compatibility:

• Identical forward voltage: 2V
• Identical maximum current: 30mA
• Same wavelength specification: 590nm yellow

Mechanical Compatibility:

• Identical lens size: 5mm, T-1 3/4
• Identical panel cutout dimensions: 0.25" (6.35mm) round
• Identical lens style: Round with domed top
• Same series designation: PM5

Optical Differences (Non-Critical for Substitution):

• PM5YD features diffused lens transparency versus PM5YT clear lens
• PM5YD provides 25mcd brightness versus PM5YT 40mcd
• PM5YD offers 45° viewing angle versus PM5YT 35° viewing angle

These optical differences represent trade-offs in brightness and viewing characteristics rather than incompatibilities. The diffused lens of PM5YD provides wider viewing angle distribution at reduced peak intensity.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement Applications:

The PM5YD serves as the active substitute for the obsolete PM5YT. Both components share identical electrical ratings (2V, 30mA), mechanical dimensions (5mm T-1 3/4 lens, 0.25" round panel cutout), and wavelength specification (590nm yellow).

Product Status Consideration:

PM5YT is classified as obsolete with 769 units in current inventory. PM5YD is classified as active with 889 units in current inventory, ensuring long-term availability for new designs and production continuity.

Compliance Status:

Both PM5YT and PM5YD carry identical regulatory classifications: ECCN EAR99 and HTSUS 8541.41.0000. PM5YD includes RoHS3 compliance certification, meeting current environmental standards.

Application-Specific Factors:

Selection between PM5YT and PM5YD depends on optical requirements. Applications requiring maximum brightness concentration at narrow viewing angles favor PM5YT specifications (40mcd, 35° angle, clear lens). Applications requiring distributed brightness across wider viewing angles favor PM5YD specifications (25mcd, 45° angle, diffused lens).

Frequently Asked Questions (FAQ)

Q: Can PM5YD directly replace PM5YT in existing designs?

A: Yes. PM5YD maintains identical electrical specifications (2V, 30mA), mechanical dimensions (5mm T-1 3/4, 0.25" round cutout), and wavelength (590nm). Panel mounting compatibility is identical. Optical characteristics differ: PM5YD provides wider viewing angle (45° vs 35°) at reduced brightness (25mcd vs 40mcd).

Q: What is the primary difference between PM5YT and PM5YD?

A: The lens transparency differs. PM5YT features a clear lens delivering concentrated brightness (40mcd) at narrow viewing angle (35°). PM5YD features a diffused lens distributing brightness (25mcd) across wider viewing angle (45°). Both maintain identical electrical and mechanical specifications.

Q: Are there packaging differences between PM5YT and PM5YD?

A: PM5YT packaging is listed as "-" (unspecified). PM5YD is packaged in bags. Both components use identical 5mm T-1 3/4 lens packages with 0.25" round panel cutout dimensions.

Q: Does PM5YD meet current compliance standards?

A: Yes. PM5YD carries RoHS3 compliance certification. Both PM5YT and PM5YD share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is PM5YT classified as obsolete?

A: PM5YT is obsolete due to product line consolidation. PM5YD, the active equivalent, provides superior long-term availability and current compliance certifications while maintaining core electrical and mechanical compatibility.

Q: What applications require the higher brightness of PM5YT (40mcd)?

A: Applications requiring concentrated brightness at narrow viewing angles, such as focused indicator panels or high-contrast visual signaling in controlled viewing environments, benefit from PM5YT specifications. PM5YD serves applications requiring distributed brightness across wider viewing angles.

Q: Is the 590nm wavelength specification identical between both parts?

A: Yes. Both PM5YT and PM5YD specify 590nm peak wavelength, ensuring identical yellow color appearance and optical compatibility with existing circuit designs and optical filtering systems.