ASLD300-1 Equivalent & Substitute Parts Reference

Part Overview

The ASLD300-1 is a configurable switch operator from IDEC's TWTD series, designed as an illuminated selector switch body component. This maintained-type actuator requires integration with contact blocks, illumination sources, and lenses to form a complete switch assembly. The product is classified as obsolete, necessitating identification of active equivalent components to maintain system availability and support ongoing maintenance requirements.

Substiute Parts

ASLD300-1

IDECIn Stock: 927ASLD300-1 Datasheet

Current PartRFQ

ASLD0302T8

IDECIn Stock: 1087ASLD0302T8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASLD300-1 is based on the following critical parameters that must remain consistent:

• Manufacturer: IDEC (maintains design compatibility and support infrastructure)
• Actuator Type: Selector (functional requirement for application)
• Type: Maintained (operational characteristic)
• Illumination: Illuminated (visual feedback requirement)
• Panel Cutout Dimensions: 30.5mm (Round) (mechanical fit requirement)
• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (environmental tolerance)

The ASLD0302T8 qualifies as a substitute because it maintains all critical parameters while transitioning from the obsolete TWTD series to the active TWND series. Both components share identical mechanical interfaces, electrical characteristics, and regulatory compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

The ASLD0302T8 is the direct equivalent for ASLD300-1 applications. Selection is based on the following engineering criteria:

Product Status: The ASLD300-1 is obsolete and no longer manufactured. The ASLD0302T8 is active and maintains full production support from IDEC.

Regulatory Compliance: Both components meet ROHS3 compliance requirements and carry identical moisture sensitivity ratings, ensuring equivalent performance in regulated environments.

Mechanical Compatibility: Identical 30.5mm round panel cutout dimensions ensure direct mechanical substitution without enclosure modifications.

Functional Equivalence: Both components are maintained-type illuminated selector switches with identical actuator characteristics, supporting seamless integration into existing control systems.

Series Transition: The shift from TWTD to TWND series represents IDEC's product line evolution while maintaining backward compatibility at the component interface level.

Frequently Asked Questions (FAQ)

Q: Can ASLD0302T8 directly replace ASLD300-1 in existing assemblies?

A: Yes. Both components share identical panel cutout dimensions (30.5mm round), actuator type (selector), operational type (maintained), and illumination characteristics. No mechanical or electrical modifications are required.

Q: Are there differences in contact block or lens compatibility?

A: Both the ASLD300-1 and ASLD0302T8 require contact blocks, illumination sources, and lenses as separate components. Compatibility is determined by the base product number (ASLD) and series designation. Verify that contact blocks and lenses specified for TWTD series are compatible with TWND series, or source equivalent TWND-series accessories.

Q: What is the significance of the series change from TWTD to TWND?

A: The series designation identifies the product line generation. TWTD is obsolete; TWND is the current active series. The change reflects IDEC's product evolution, but the mechanical and electrical interfaces remain compatible for direct substitution purposes.

Q: Does packaging affect substitution suitability?

A: Packaging (bulk for ASLD0302T8) affects logistics and inventory management but does not impact functional or mechanical compatibility. Select based on procurement requirements.

Q: Are both components RoHS3 compliant?

A: Yes. Both ASLD300-1 and ASLD0302T8 are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity), ensuring equivalent environmental performance.