SI-3012LU Linear Voltage Regulator IC

Part Overview

The SI-3012LU is a linear voltage regulator IC manufactured by Sanken Electric USA Inc., designed for positive adjustable output applications. This Surface Mount device delivers 250mA output current in a compact SOT-89-5 package. The part is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product roadmap. Organizations requiring this functionality for ongoing production or maintenance applications should evaluate available substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

SI-3012LU

Sanken Electric USA Inc.In Stock: 919SI-3012LU Datasheet

Current PartRFQ

SI-3012LU-TL

Sanken Electric USA Inc.In Stock: 11128SI-3012LU-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI-3012LU is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Output Configuration: Positive
• Output Type: Adjustable
• Voltage - Input (Max): 17V
• Voltage - Output (Min/Fixed): 1.5V
• Voltage - Output (Max): 15V
• Current - Output: 250mA
• Voltage Dropout (Max): 0.5V @ 250mA
• Current - Quiescent (Iq): 150 µA
• PSRR: 55dB (100Hz ~ 120Hz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature
• Operating Temperature: -40°C ~ 125°C

Mechanical Equivalence Requirements:

• Package / Case: SOT-89-5/6
• Mounting Type: Surface Mount

The SI-3012LU-TL meets all specified electrical and mechanical parameters, differing only in packaging format (Tape & Reel versus standard packaging) and product status (Active versus Not For New Designs).

Parameter Comparison

Engineering Selection Recommendations

The SI-3012LU-TL is a direct parametric equivalent to the SI-3012LU. Both components are manufactured by Sanken Electric USA Inc. and maintain identical electrical specifications and mechanical form factors. The primary distinction is product status: the SI-3012LU is classified as Not For New Designs, while the SI-3012LU-TL carries Active status, indicating ongoing manufacturer support and availability.

For applications currently using SI-3012LU, the SI-3012LU-TL provides functional continuity with the advantage of active product lifecycle support. Both components are RoHS Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols.

The packaging format difference (Tape & Reel for SI-3012LU-TL versus standard packaging for SI-3012LU) affects supply chain logistics but does not impact electrical or mechanical performance in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can SI-3012LU-TL be used as a direct replacement for SI-3012LU?

A: Yes. The SI-3012LU-TL is electrically and mechanically equivalent to the SI-3012LU. All critical parameters including voltage ratings, current capacity, dropout voltage, quiescent current, PSRR, protection features, and operating temperature range are identical. Both use the SOT-89-5/6 Surface Mount package.

Q: What is the difference between SI-3012LU and SI-3012LU-TL?

A: The components are parametrically identical. The SI-3012LU-TL is supplied in Tape & Reel (TR) packaging format, while the SI-3012LU uses standard packaging. Additionally, SI-3012LU-TL carries Active product status, indicating current manufacturer support, whereas SI-3012LU is classified as Not For New Designs.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a supply format used for automated assembly processes. The component itself and its electrical characteristics remain unchanged. The die, lead frame, and performance specifications are identical to standard packaging variants.

Q: Are both parts RoHS Compliant?

A: Yes. Both SI-3012LU and SI-3012LU-TL are RoHS Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Which part should be selected for new production?

A: The SI-3012LU-TL should be selected for new production due to its Active product status and ongoing manufacturer support. The SI-3012LU is designated Not For New Designs and may face future availability constraints.