PD2401X2 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PD2401X2 is a solid state relay (SSR) manufactured by IXYS Integrated Circuits Division, configured as a SPST-NO (Single Pole Single Throw - Normally Open) switching device. This component operates with a 1.2VDC input signal and controls AC loads up to 500V at 1A maximum current, utilizing zero-cross switching technology. The device is packaged in a 16-DIP (0.300", 7.62mm) through-hole configuration with PC pin termination.

The PD2401X2 carries a Last Time Buy product status, indicating discontinued production. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

PD2401X2

IXYS Integrated Circuits DivisionIn Stock: 2185PD2401X2 Datasheet

Current PartRFQ

PD2401

IXYS Integrated Circuits DivisionIn Stock: 2038PD2401 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD2401X2 is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Input Voltage: Must be 1.2VDC to ensure direct compatibility with existing control circuitry
• Load Voltage Range: Must support 0V to 500V AC operation
• Load Current: Must support minimum 1A switching capacity
• Output Type: Must be AC with zero-cross switching to preserve load protection characteristics
• Package / Case: Must be 16-DIP (0.300", 7.62mm) with 4 leads for PCB footprint compatibility
• Mounting Type: Must be through-hole to match existing board design
• Termination Style: Must be PC pin for solder connection compatibility

Only components meeting all these criteria are considered direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The PD2401 is the direct substitute for the PD2401X2. Both components are manufactured by IXYS Integrated Circuits Division and share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the PD2401X2 is Last Time Buy, while the PD2401 maintains Active status, ensuring continued availability and supply chain reliability.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production. The PD2401 is the recommended selection for new applications and component replenishment due to its active production status.

Frequently Asked Questions (FAQ)

Q: Can the PD2401 directly replace the PD2401X2 in existing designs?

A: Yes. The PD2401 is electrically and mechanically identical to the PD2401X2 across all specified parameters, including input voltage, load voltage range, load current, circuit configuration, package type, and termination style. No design modifications are required.

Q: Why is the PD2401X2 marked as Last Time Buy?

A: Last Time Buy status indicates that IXYS Integrated Circuits Division has discontinued production of this specific part number variant. The PD2401 base part number remains in active production and serves as the ongoing equivalent.

Q: Are there any compliance differences between the two parts?

A: No. Both the PD2401X2 and PD2401 maintain identical RoHS3 compliance and REACH unaffected status. Both are suitable for applications requiring regulatory compliance.

Q: What is the significance of the zero-cross switching feature?

A: Zero-cross switching ensures that the relay switches only when the AC voltage waveform crosses zero, minimizing electromagnetic interference and reducing stress on connected loads. This feature is maintained in both the PD2401X2 and PD2401.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use identical 16-DIP (0.300", 7.62mm) through-hole packaging with PC pin termination, ensuring footprint and solder connection compatibility on the same printed circuit board.