ASD33K40N Equivalent & Substitute Parts

Part Overview

The ASD33K40N is a keylock switch manufactured by IDEC, designed for panel-mounted applications requiring 3-position, 4PST-NO switching functionality. This component operates at 110 VAC / 24 VDC with a 10A (AC) and 8A (DC) current rating, featuring silver contacts and screw terminal connections. The product is classified as obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing in legacy equipment applications.

Substiute Parts

ASD33K40N

IDECIn Stock: 953ASD33K40N Datasheet

Current PartRFQ

ASD33K40NU

IDECIn Stock: 836ASD33K40NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASD33K40N is determined by strict alignment of electrical and mechanical parameters. The primary substitute identified is the ASD33K40NU, which shares the same base product number (ASD33) and maintains compatibility through the following critical parameters:

Electrical Compatibility Criteria:

• Circuit configuration: 4PST-NO
• Number of positions: 3
• Current ratings: 10A (AC) / 8A (DC)
• Voltage ratings: 110V (AC) / 24V (DC)
• Contact material: Silver (Ag)

Mechanical Compatibility Criteria:

• Actuator type: Flat Key
• Mounting type: Panel Mount
• Termination style: Screw Terminal
• Panel cutout dimensions: Circular - 30.50mm Dia
• Depth behind flange: 76.00mm

Regulatory Compliance:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The ASD33K40NU maintains these specifications while transitioning from obsolete to active product status, making it the direct functional equivalent for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The ASD33K40NU is the direct substitute for the obsolete ASD33K40N. Both components are manufactured by IDEC and maintain identical electrical specifications (4PST-NO, 10A AC / 8A DC, 110V AC / 24V DC) and mechanical dimensions (30.50mm circular panel cutout, 76.00mm depth). The transition from obsolete to active product status makes the ASD33K40NU the appropriate selection for new procurement and system replacement applications. Both parts maintain ROHS3 compliance and MSL Level 1 certification, ensuring regulatory alignment for industrial control and switching applications.

Frequently Asked Questions (FAQ)

Q: Can the ASD33K40NU directly replace the ASD33K40N in existing installations?

A: Yes. The ASD33K40NU maintains identical electrical ratings (10A AC / 8A DC, 110V AC / 24V DC), circuit configuration (4PST-NO), mechanical dimensions (30.50mm panel cutout, 76.00mm depth), actuator type (flat key), and termination style (screw terminal). Panel mounting and electrical connections are fully compatible.

Q: What is the difference between the ASD33K40N and ASD33K40NU?

A: The primary difference is product status. The ASD33K40N is classified as obsolete, while the ASD33K40NU is active. Both share the same base product number (ASD33) and maintain identical functional and mechanical specifications.

Q: Are there packaging differences between these parts?

A: The ASD33K40N is supplied with standard packaging, while the ASD33K40NU is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact component functionality or electrical performance.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the ASD33K40N and ASD33K40NU are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life). Regulatory compliance is maintained across both components.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching circuit configuration (4PST-NO), number of positions (3), current ratings (10A AC / 8A DC), voltage ratings (110V AC / 24V DC), actuator type (flat key), mounting type (panel mount), termination style (screw terminal), and panel cutout dimensions (30.50mm circular). All parameters must align for direct substitution.