S-812C38AMC-C2ST2G Equivalent & Substitute Parts

Part Overview

The S-812C38AMC-C2ST2G is a linear voltage regulator IC manufactured by ABLIC Inc., classified as a Power Management (PMIC) component. This device provides a fixed positive output of 3.8V at 50mA in a SOT-23-5 surface mount package. The part is currently marked as "Not For New Designs," indicating it has been superseded or is in end-of-life status. Identifying equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this regulator is specified in existing designs.

Substiute Parts

S-812C38AMC-C2ST2G

ABLIC Inc.In Stock: 1041S-812C38AMC-C2ST2G Datasheet

Current PartRFQ

S-812C38AMC-C2ST2U

ABLIC Inc.In Stock: 1192S-812C38AMC-C2ST2U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S-812C38AMC-C2ST2G is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 3.8V
• Output current capability of 50mA
• Maximum input voltage of 16V
• Dropout voltage specification of 0.35V @ 10mA
• Quiescent current of 500 nA
• Operating temperature range of -40°C ~ 85°C
• SOT-23-5 package configuration
• Surface mount technology

The primary difference between the main part and its substitute lies in packaging format (Tape & Reel versus Cut Tape) and product lifecycle status. Both parts share identical electrical specifications and are manufactured by the same supplier within the same product series (S-812C).

Parameter Comparison

Engineering Selection Recommendations

The S-812C38AMC-C2ST2U is the direct parametric equivalent to the S-812C38AMC-C2ST2G. Both parts are ROHS3 compliant and carry identical electrical and thermal specifications. The substitute part maintains active product status, whereas the original part is designated "Not For New Designs," making the S-812C38AMC-C2ST2U the preferred selection for ongoing applications requiring this 3.8V, 50mA linear regulator.

The distinction between these parts is limited to packaging format: the original uses Tape & Reel packaging while the substitute uses Cut Tape packaging. This difference affects procurement and assembly processes but does not impact electrical performance or functional compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can S-812C38AMC-C2ST2U be used as a direct replacement for S-812C38AMC-C2ST2G?

A: Yes. Both parts are electrically identical with matching output voltage (3.8V), output current (50mA), input voltage rating (16V), dropout voltage (0.35V @ 10mA), and operating temperature range (-40°C ~ 85°C). They share the same SOT-23-5 package and surface mount configuration.

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

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging provides the same components on shorter tape segments, typically used for lower-volume orders or manual assembly. Both formats contain identical components with no electrical differences.

Q: Why is the original part marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life or is being phased out by the manufacturer. The S-812C38AMC-C2ST2U, marked as "Active," is the current production equivalent and should be specified for new designs and ongoing applications.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, MSL rating of 1 (Unlimited), and the same ECCN and HTSUS classifications.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, provided the assembly process accommodates the packaging format. If the original design specifies Tape & Reel format for automated pick-and-place assembly, Cut Tape format may require process adjustment. Electrically and mechanically, both parts are fully interchangeable in the SOT-23-5 footprint.