DS1-12D Equivalent & Substitute Parts

Part Overview

The DS1-12D is a general-purpose rectifier diode manufactured by IXYS, rated for 1200 V DC reverse voltage with 2.3 A average rectified current. This through-hole radial package component is designed for standard recovery applications exceeding 500 ns recovery time at currents greater than 200 mA. The DS1-12D is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

DS1-12D

IXYSIn Stock: 1031DS1-12D Datasheet

Current PartRFQ

DSA1-12D

IXYSIn Stock: 996DSA1-12D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1-12D is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 1200 V
• Current - Average Rectified (Io): 2.3 A
• Voltage - Forward (Vf) (Max) @ If: within specified range
• Current - Reverse Leakage @ Vr: 700 µA @ 1200 V
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Operating Temperature - Junction: -40°C ~ 150°C

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: Radial

The DSA1-12D meets all electrical and mechanical parameters required for direct substitution. The primary distinction is technology classification (Avalanche versus Standard) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The DSA1-12D is the direct substitute for the obsolete DS1-12D. Both components share identical electrical ratings and mechanical specifications across all critical parameters. The DSA1-12D is currently in active production status with 938 pieces available in inventory.

The DSA1-12D provides enhanced compliance posture through ROHS3 certification, whereas the DS1-12D compliance status is not specified. Both components maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

The forward voltage specification of the DSA1-12D (1.34 V @ 7 A) is marginally higher than the DS1-12D (1.3 V @ 7 A) by 0.04 V, remaining within acceptable engineering tolerance for general-purpose rectifier applications at the specified current rating.

Frequently Asked Questions (FAQ)

Q: Can the DSA1-12D directly replace the DS1-12D in existing designs?

A: Yes. The DSA1-12D meets all electrical and mechanical specifications of the DS1-12D. Both components are rated for 1200 V reverse voltage, 2.3 A average rectified current, and feature identical through-hole radial packaging. The forward voltage differential of 0.04 V is within standard engineering tolerance for this component class.

Q: What is the primary difference between the DS1-12D and DSA1-12D?

A: The DS1-12D uses standard diode technology, while the DSA1-12D uses avalanche technology. Both maintain identical voltage, current, and thermal ratings. The DSA1-12D is currently in active production status, whereas the DS1-12D is obsolete.

Q: Are there packaging differences between these components?

A: Both components use through-hole radial packaging. The DS1-12D packaging is listed as unspecified, while the DSA1-12D is supplied in box packaging. Physical form factor and mounting footprint are identical.

Q: Does the DSA1-12D meet current regulatory requirements?

A: The DSA1-12D is ROHS3 compliant and maintains REACH Unaffected status. Both components share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: What is the reverse leakage current specification for both parts?

A: Both the DS1-12D and DSA1-12D specify 700 µA reverse leakage current at 1200 V rated reverse voltage.

Q: Are there temperature rating differences?

A: No. Both components operate across the identical junction temperature range of -40°C to 150°C.