ASD300-2 Equivalent & Substitute Parts

Part Overview

The ASD300-2 is a configurable switch operator manufactured by IDEC, classified as a Configurable Switch Component. This non-illuminated selector switch features a momentary action type and is designed for panel mounting with a 30.5mm round cutout. The product is currently obsolete, which necessitates identification of active equivalent components to maintain system functionality and ensure continued availability for replacement and maintenance applications.

Substiute Parts

ASD300-2

IDECIn Stock: 989ASD300-2 Datasheet

Current PartRFQ

ASD0306T8

IDECIn Stock: 1129ASD0306T8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASD300-2 is based on the following critical parameters that must align between the main part and substitute components:

• Manufacturer Compatibility: IDEC platform components
• Actuator Type: Selector configuration
• Illumination Status: Non-illuminated operation
• Panel Cutout Dimensions: 30.5mm round mounting interface
• Regulatory Compliance: ROHS3 Compliant status
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• Component Category: Configurable Switch Components

The ASD0306T8 qualifies as a substitute based on matching these core parameters. While the switch type differs (Maintained vs. Momentary) and the series designation changes from TWTD to TWND, the mechanical interface, electrical category, and regulatory compliance remain consistent with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The ASD0306T8 is the designated substitute for the obsolete ASD300-2. Selection of this component is supported by:

• Active Product Status: The ASD0306T8 maintains active production status, ensuring availability and supply chain continuity.
• Regulatory Compliance: Both components meet ROHS3 Compliant requirements and share identical MSL ratings.
• Mechanical Compatibility: Identical panel cutout dimensions (30.5mm round) enable direct physical replacement without enclosure modification.
• Electrical Category Alignment: Both components function within the Configurable Switch Components category with selector actuator configuration.

The primary operational difference is the switch action type: ASD300-2 operates as Momentary, while ASD0306T8 operates as Maintained. This distinction must be evaluated against the specific application requirements and control logic design.

Frequently Asked Questions (FAQ)

Q: Can the ASD0306T8 be used as a direct replacement for ASD300-2?

A: Physical and electrical compatibility is confirmed through matching panel cutout dimensions, RoHS compliance, and MSL ratings. However, the switch action type differs (Momentary vs. Maintained), which affects operational behavior. Application-specific control logic must accommodate this functional difference.

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

A: The series designation reflects the product line evolution within IDEC's configurable switch portfolio. Both series maintain compatibility with the 30.5mm round panel cutout interface and share equivalent regulatory compliance status.

Q: Are there inventory considerations for component selection?

A: The ASD0306T8 is available in active production with 1089 pieces in stock, providing supply assurance. The ASD300-2 remains obsolete with limited inventory (908 pieces), making the active substitute the preferred selection for new designs and ongoing maintenance.

Q: What role does the Contact Block requirement play in substitution?

A: Both the ASD300-2 and ASD0306T8 require Contact Block(s) as specified components. Contact block selection must be verified independently to ensure compatibility with the chosen switch operator.