SX0782/63 Equivalent & Substitute Parts

Part Overview

The SX0782/63 is a toggle switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 10A at 250V AC and 28V DC. This component features a panel mount design with a standard round actuator and Mom-Off-Mom switch function. The part is classified as obsolete, making identification of equivalent alternatives necessary for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

SX0782/63

BulginIn Stock: 950SX0782/63 Datasheet

Current PartRFQ

C3972BA

BulginIn Stock: 2138C3972BA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX0782/63 is based on the following critical parameters that must be maintained or exceeded:

• Circuit Configuration: DPDT topology must be preserved
• Switch Function: Mom-Off-Mom operation required
• Current Rating: Substitute must support minimum 10A
• Voltage Rating - AC: Substitute must support minimum 250V AC
• Voltage Rating - DC: Substitute must support minimum 28V DC
• Mounting Type: Panel mount configuration required
• Termination Style: Quick Connect 0.250" (6.3mm) required
• Compliance: RoHS3 compliance required

The C3972BA meets these substitution criteria with enhanced electrical ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

The C3972BA serves as a functional equivalent for the SX0782/63 in applications where AC voltage requirements do not exceed 125V. Both components maintain ROHS3 compliance and identical switch function topology. The C3972BA offers enhanced current capacity and active product status, ensuring long-term availability and supply chain continuity.

For applications requiring the full 250V AC rating of the original SX0782/63, alternative DPDT toggle switches from Bulgin or other manufacturers with equivalent AC voltage specifications must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the C3972BA directly replace the SX0782/63 in all applications?

A: The C3972BA is functionally compatible for DPDT Mom-Off-Mom switching operations. However, applications operating at 250V AC require verification that system voltage does not exceed the C3972BA's 125V AC rating. Panel cutout dimensions differ slightly (12.70mm vs 12.00mm), requiring mechanical evaluation for panel compatibility.

Q: What are the critical differences between these parts?

A: The primary difference is AC voltage rating: SX0782/63 supports 250V AC while C3972BA supports 125V AC. Current ratings are higher on the C3972BA (16A AC, 14A DC vs 10A). Panel cutout diameter increases from 12.00mm to 12.70mm. Both maintain identical circuit configuration, switch function, and termination style.

Q: Is the C3972BA suitable for DC applications?

A: Yes. The C3972BA supports 36V DC, exceeding the SX0782/63's 28V DC rating. DC current capacity is 14A, exceeding the original 10A specification.

Q: What packaging is available for the C3972BA?

A: The C3972BA is supplied in bulk packaging with 2092 pieces currently in stock.

Q: Are both parts RoHS compliant?

A: Yes. Both SX0782/63 and C3972BA are ROHS3 compliant with MSL rating of 1 (Unlimited). Both are REACH unaffected and classified under ECCN EAR99.