Dialight 25299510973 Equivalent & Substitute Parts

Part Overview

The Dialight 25299510973 is an incandescent panel indicator assembly (PMI ASSY T-1 LAMP) with a yellow lens and 6-inch wire leads. This component is designed for panel-mount applications requiring visual indication with water-resistant construction. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing system maintenance and new designs requiring similar functionality.

Substiute Parts

25299510973

DialightIn Stock: 120025299510973 Datasheet

Current PartRFQ

25299510937

DialightIn Stock: 110125299510937 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Dialight 25299510973 is determined by the following critical parameters that must remain consistent:

• Mechanical Compatibility: Panel cutout shape (Round), cutout dimensions (0.19" / 4.83mm), lens size (5.56mm Dia), and lens style (Round with Domed Top)
• Electrical Interface: Termination style (Wire Leads - 6" / 152.40mm)
• Environmental Protection: Ingress protection rating (Water Resistant)
• Series Consistency: Dialight 252 series platform
• Physical Form Factor: Incandescent lamp type with panel-mount configuration

The substitute part 25299510937 maintains identical mechanical and environmental specifications while differing only in lens color (Colorless/Clear instead of Yellow). This substitution is valid where the visual indication color requirement can be modified or where clear lens operation is acceptable for the application.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 25299510937 serves as a direct mechanical and environmental substitute for the 25299510973. Both components share identical panel cutout specifications, lens dimensions, wire lead configuration, and water-resistant protection rating, ensuring drop-in compatibility at the mechanical interface level.

The primary distinction is product status and regulatory compliance. The 25299510937 is currently active in inventory with ROHS3 compliance, whereas the 25299510973 is discontinued and RoHS non-compliant. For applications where regulatory compliance is required, the 25299510937 is the appropriate selection.

The lens color difference (Yellow vs. Colorless/Clear) is the only functional parameter that differs. Selection between these parts depends on application requirements for visual indication color. If yellow indication is mandatory, the 25299510973 remains the specified part; however, given its discontinued status, design modification to accommodate clear lens operation may be necessary for long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 25299510937 be used as a direct replacement for the 25299510973?

A: Yes, from a mechanical and environmental standpoint. Both parts feature identical panel cutout dimensions (0.19" / 4.83mm), lens size (5.56mm Dia), lens style (Round with Domed Top), wire lead length (6" / 152.40mm), and water-resistant protection. The substitution is valid provided the application can operate with a clear lens instead of yellow.

Q: What is the primary difference between these two parts?

A: The lens color and transparency differ. The 25299510973 has a yellow lens, while the 25299510937 has a colorless lens with clear transparency. Additionally, the 25299510937 is ROHS3 compliant and currently active, whereas the 25299510973 is discontinued and RoHS non-compliant.

Q: Are there any compatibility concerns with panel mounting?

A: No. Both parts share identical panel cutout specifications (Round shape, 0.19" / 4.83mm dimensions), ensuring compatible panel integration without modification.

Q: Does the wire lead length remain the same?

A: Yes. Both the 25299510973 and 25299510937 feature 6-inch (152.40mm) wire leads, maintaining identical termination specifications.

Q: What is the inventory status of these parts?

A: The 25299510973 has 1165 pieces in stock but is discontinued at DiGi Electronics. The 25299510937 has 993 pieces in stock and is currently active.