SI-3025KS Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The SI-3025KS is a linear voltage regulator IC manufactured by Sanken Electric USA Inc., designed for positive fixed output applications. This device delivers 1A output current at a fixed 2.5V output voltage with a maximum dropout voltage of 0.6V. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

SI-3025KS

Sanken Electric USA Inc.In Stock: 993SI-3025KS Datasheet

Current PartRFQ

SI-3025KS-TL

Sanken Electric USA Inc.In Stock: 6149SI-3025KS-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI-3025KS is determined by the following critical electrical and mechanical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 1A
• Maximum input voltage of 17V
• Dropout voltage specification of 0.6V @ 1A
• 8-SOIC surface mount package with 4.40mm width
• Operating temperature range of -40°C to 125°C
• RoHS compliance certification

The SI-3025KS-TL qualifies as a parametric equivalent substitute based on identical electrical specifications and package configuration. The only distinction between these parts is the packaging format: the main part is supplied in Tape & Reel (TR) configuration, while the substitute is supplied in Cut Tape (CT) configuration. Both parts share the same base product number (SI-3025) and are manufactured by the same supplier.

Parameter Comparison

Engineering Selection Recommendations

Both the SI-3025KS and SI-3025KS-TL are classified as obsolete products. Selection between these parts should be based on packaging and supply chain requirements rather than electrical performance, as they are electrically and mechanically identical.

The SI-3025KS-TL offers higher current inventory availability (6100 Pcs) compared to the SI-3025KS (944 Pcs), making it the preferred choice for volume production or long-term supply assurance. The Cut Tape packaging format of the SI-3025KS-TL is suitable for manual assembly, rework, and lower-volume manufacturing environments.

The SI-3025KS in Tape & Reel format remains appropriate for automated pick-and-place assembly operations where continuous reel feeding is required.

Both parts maintain full RoHS compliance and identical thermal and electrical performance across the specified operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Are the SI-3025KS and SI-3025KS-TL electrically interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, including output voltage (2.5V), output current (1A), dropout voltage (0.6V @ 1A), quiescent current (350 µA), and PSRR (55dB). They share the same 8-SOIC package footprint and can be used interchangeably in circuit designs.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous reels suitable for automated assembly equipment. Cut Tape (CT) packaging provides individual components or small quantities cut from tape, suitable for manual assembly, prototyping, and rework applications. Both formats contain the same component with identical electrical performance.

Q: Can I use SI-3025KS-TL as a direct replacement for SI-3025KS in production?

A: Yes, the SI-3025KS-TL is a direct parametric substitute. The only consideration is the packaging format. If your assembly process uses automated pick-and-place equipment requiring continuous reels, the Tape & Reel format is preferred. For manual assembly or lower-volume production, Cut Tape is acceptable.

Q: Why are both parts marked as obsolete?

A: Obsolete status indicates these products are no longer in active production by the manufacturer. However, both parts remain available through authorized distributors with current inventory. For new designs, evaluation of current-generation linear regulators with similar specifications is recommended for long-term product support.

Q: Are there any compliance differences between these parts?

A: No. Both SI-3025KS and SI-3025KS-TL maintain identical RoHS compliance status, Moisture Sensitivity Level (MSL 1 - Unlimited), and regulatory classifications (ECCN: EAR99, HTSUS: 8542.39.0001).