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TS4061BICT-1.25
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STMicroelectronics Voltage Reference, SOT-323-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTS4061BICT-1.25
STMicroelectronics · Voltage Reference · SOT-323-3
TS4061BICT-1.25 from STMicroelectronics, in a SOT-323-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode of the shunt reference (Vk = 1.25 V), operating current 10 µA minimum to 15 mA maximum, absolute maximum reverse breakdown current 20 mA. |
| 2 | A | passive | Anode of the shunt reference, the return/ground-side terminal; absolute maximum forward current is 15 mA. |
| 3 | NC | unconnected | No-connect pin that must be left unconnected or connected to the anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-323-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage (Vk = 1.25 V), TS4061B | Vk | 1.2475 | 1.25 | 1.2525 | V | Ik = 10 µA, TS4061B | 5 |
| Minimum operating current | Ikmin | 7.5 | 10 | µA | Tamb = 25 °C | 5 | |
| Minimum operating current | Ikmin | 12 | µA | -40 °C < Tamb < +85 °C | 5 | ||
| Reverse breakdown voltage change with operating current, Ikmin < Ik < 1 mA | Vk/Ik | 0.2 | 1 | mV | Ikmin < Ik < 1 mA, -40 °C < Tamb < +85 °C | 5 | |
| Reverse breakdown voltage change with operating current, 1 mA < Ik < 15 mA | Vk/Ik | 1.7 | 4 | mV | 1 mA < Ik < 15 mA, -40 °C < Tamb < +85 °C | 5 | |
| Average temperature coefficient | Vk/T | 20 | 35 | ppm/°C | 10 µA < Ik < 15 mA | 5 | |
| Static impedance | Rka | 0.15 | 0.3 | Ω | Ik = 10 µA to 10 mA | 5 | |
| Thermal hysteresis | Hys | 120 | ppm | Ik = 10 µA | 5 | ||
| Wideband noise | Noise | 95 | µVRMS | Ik = 10 µA, 10 Hz < f < 10 kHz | 5 | ||
| Low frequency noise | Noise | 10 | µVp-p | Ik = 10 µA, 0.1 Hz < f < 10 Hz | 5 | ||
| Reverse breakdown current | Ik | 20 | mA | 4 | |||
| Forward current | If | 15 | mA | 4 | |||
| Power dissipation | Pd | 500 | mW | Tamb = 25 °C, Tjmax = 150 °C | 4 | ||
| Storage temperature | Tstd | -65 | 150 | °C | 4 | ||
| ESD Human body model (HBM) | ESD | 2 | kV | 4 | |||
| ESD Machine model (MM) | ESD | 200 | V | 4 | |||
| ESD Charged device model (CDM) | ESD | 1500 | V | 4 | |||
| Lead temperature (soldering) | Tlead | 260 | °C | 10 sec | 4 | ||
| Max. junction temperature | Tj | 150 | °C | 4 | |||
| Minimum operating current | Ikmin | 10 | µA | 4 | |||
| Maximum operating current | Ikmax | 15 | mA | 4 | |||
| Operating free air temperature range | Toper | -40 | 85 | °C | 4 | ||
| Thermal resistance junction-ambient (SOT323-3L) | RthJA | 246 | °C/W | SOT323-3L | 4 | ||
| Thermal resistance junction-case (SOT323-3L) | RthJC | 171 | °C/W | SOT323-3L | 4 |
CAD (KiCad official)
- Symbol:
TS4061BICT-1.25 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323-3 (KiCad packages3D, STEP)
- 3D model files:
ts4061bict-1-25-etched.step/ts4061bict-1-25-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ts4061bict-1-25.step/ts4061bict-1-25.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (15 pp, sha256
25e6e265601c7aae, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).