PM5AT LED Panel Indicator - Equivalent & Substitute Parts

Part Overview

The PM5AT is an LED panel indicator manufactured by Bivar Inc., featuring an amber lamp with a clear lens and 35° viewing angle. This component is classified as obsolete, necessitating the identification of active substitute components for continued system integration and new designs. The PM5AT delivers 40 millicandela at 605nm wavelength with 2V forward voltage and 30mA maximum current, suitable for panel-mount applications requiring visual indication in amber spectrum.

Substiute Parts

PM5AT

Bivar Inc.In Stock: 853PM5AT Datasheet

Current PartRFQ

PM5ADW12.0

Bivar Inc.In Stock: 947PM5ADW12.0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the PM5AT are identified based on critical electrical and mechanical parameters that ensure functional compatibility:

Critical Matching Parameters:

• Electrical Compatibility: Forward voltage (2V) and maximum current rating (30mA) must align with existing circuit designs
• Mechanical Compatibility: Panel cutout shape (round), cutout dimensions (0.25"/6.35mm), lens size (5mm T-1 3/4), and lens style (round with domed top) ensure physical fit in existing panel mount applications
• Optical Compatibility: Lamp color (amber) and wavelength peak (605nm) maintain consistent visual indication characteristics
• Environmental Rating: Moisture sensitivity level (MSL 1 - Unlimited) ensures reliability in target applications

The PM5ADW12.0 qualifies as a substitute component, sharing identical electrical ratings, mechanical form factors, and optical properties with the PM5AT, while offering an active product status and enhanced lens transparency options.

Parameter Comparison

Engineering Selection Recommendations

The PM5ADW12.0 is the identified active substitute for the obsolete PM5AT. Both components share the same manufacturer (Bivar Inc.), Series (PM5), electrical ratings (2V/30mA), and mechanical specifications (0.25" round cutout, 5mm T-1 3/4 lens, round domed top style), ensuring direct compatibility in existing panel-mount applications.

The PM5ADW12.0 provides additional advantages:

• Active Product Status: Currently manufactured and available for supply chain continuity
• RoHS3 Compliance: Meets regulatory requirements for hazardous substance restrictions
• Enhanced Viewing Angle: 45° viewing angle versus 35°, providing wider visibility coverage
• Pre-terminated Wire Leads: Supplied with 12" wire leads for direct integration in circuit designs

The reduction in millicandela rating from 40mcd to 25mcd should be evaluated against application requirements for visual indicator brightness. The shift from clear to diffused lens transparency affects light distribution characteristics and may be suitable for applications requiring broader light dispersion.

Frequently Asked Questions (FAQ)

Q: Can PM5ADW12.0 directly replace PM5AT in existing designs?

A: Yes, the PM5ADW12.0 shares identical panel cutout dimensions (0.25"/6.35mm round), electrical ratings (2V/30mA), and lens form factors (5mm T-1 3/4 round domed top) with the PM5AT. Circuit compatibility is maintained through matching forward voltage and current specifications. Physical panel mounting is equivalent due to shared cutout specifications.

Q: How does the lens transparency difference affect substitution?

A: The PM5AT features a clear lens while the PM5ADW12.0 features a diffused lens. Both transmit the same amber wavelength (605nm) and lamp color. The diffused lens provides broader light distribution but reduces light intensity concentration, while the clear lens provides more focused light output. Application requirements should determine suitability based on required light distribution pattern.

Q: What are the implications of the millicandela rating difference?

A: The PM5AT provides 40mcd output while the PM5ADW12.0 provides 25mcd output. This 37.5% reduction in brightness should be evaluated for applications where visual indicator intensity is a critical design parameter. Panel-mounted indicator applications typically accommodate this variance range without functional degradation.

Q: Does the PM5ADW12.0 viewing angle affect compatibility?

A: The PM5ADW12.0 provides a 45° viewing angle compared to the PM5AT's 35°. The wider viewing angle in the substitute part expands the operational visibility range and is functionally compatible with applications designed for the PM5AT's 35° angle. No compatibility issues arise from this parameter difference.

Q: What is the significance of the wire lead termination in PM5ADW12.0?

A: The PM5ADW12.0 is supplied with pre-terminated 12" wire leads, while the PM5AT termination style is not specified in the component documentation. Wire lead termination facilitates direct circuit integration without requiring secondary component processing or custom termination procedures.

Q: Is RoHS3 compliance a requirement for substitution?

A: The PM5ADW12.0 is RoHS3 compliant while the PM5AT compliance status is not documented. RoHS3 compliance confirms absence of hazardous substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs) and is typically required for applications subject to regulatory requirements in target markets. This compliance status enhances system environmental and regulatory qualification.

Q: Are packaging differences significant for component substitution?

A: The PM5ADW12.0 is supplied in bag packaging while the PM5AT packaging is not specified. Packaging differences do not affect electrical or mechanical compatibility and are relevant only for inventory management, handling, and assembly process considerations.