ASD300-1 Equivalent & Substitute Parts

Part Overview

The ASD300-1 is a configurable switch operator manufactured by IDEC, classified as a momentary-type selector actuator with non-illuminated design. This component functions as an accessory switch body selector for the TWTD series and requires compatible contact block(s) for operation. The product is currently obsolete, necessitating identification of active equivalent components to maintain system functionality and ensure continued availability for maintenance and replacement applications.

Substiute Parts

ASD300-1

IDECIn Stock: 909ASD300-1 Datasheet

Current PartRFQ

ASD0302T8

IDECIn Stock: 841ASD0302T8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASD300-1 is determined by the following critical parameters:

• Actuator Type: Must be Selector
• Illumination: Must be Non-Illuminated
• Panel Cutout Dimensions: Must be 30.5mm (Round)
• Manufacturer: IDEC
• Category: Configurable Switch Components
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part ASD0302T8 meets all mandatory compatibility criteria. While the ASD0302T8 operates as a maintained-type selector (versus the momentary operation of ASD300-1), both components share identical mechanical interfaces, electrical compliance standards, and environmental ratings. The functional difference in operation type does not preclude substitution where system design accommodates maintained switching behavior.

Parameter Comparison

Engineering Selection Recommendations

The ASD0302T8 is the designated equivalent for the obsolete ASD300-1. Selection of this substitute is supported by:

• Active Product Status: ASD0302T8 maintains active manufacturing and distribution status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both components meet ROHS3 compliance requirements and share identical MSL ratings, confirming environmental and regulatory equivalence.
• Mechanical Compatibility: Identical panel cutout dimensions (30.5mm round) ensure direct mechanical interchangeability without enclosure modification.
• Electrical Interface: Both components function as selector-type actuators with non-illuminated design and require compatible contact block(s), maintaining functional integration with existing control systems.

The operational difference (momentary versus maintained) represents the primary functional distinction and must be evaluated within the context of the specific application control logic and system requirements.

Frequently Asked Questions (FAQ)

Q: Can ASD0302T8 be directly installed in place of ASD300-1?

A: Mechanical installation is direct due to identical panel cutout dimensions. Functional compatibility depends on whether the control system can accommodate maintained-type switching behavior in place of momentary operation.

Q: Are there differences in contact block compatibility?

A: Both components require compatible contact block(s) for operation. Contact block selection must be verified against the specific series designation (TWTD for ASD300-1, TWND for ASD0302T8) to ensure proper electrical integration.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status for ASD0302T8 indicates current manufacturing, documented supply availability, and ongoing technical support. This eliminates supply chain risk associated with obsolete components.

Q: Are environmental and compliance ratings equivalent?

A: Yes. Both components are ROHS3 compliant with MSL rating of 1 (Unlimited), confirming identical environmental performance and regulatory standing.

Q: What is the primary functional difference between these components?

A: ASD300-1 operates as momentary (contact closes only while actuated), while ASD0302T8 operates as maintained (contact remains in selected position until manually changed). This difference must be evaluated against application requirements.