component
431C
Public Made by Adomby adom
GOFORD Voltage References, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdown431C
GOFORD · Voltage References · SOT-23
431C from GOFORD, in a SOT-23. 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 | REF | input | Reference input that sets the output voltage via an external divider; Vref is about 2.495 V typ, with reference input current of 1.8 µA typ (4 µA max). |
| 2 | CATHODE | passive | Cathode (regulated output) terminal rated for VKA up to 40 V and continuous cathode current of -100 to 150 mA, with recommended operation at 0.5 to 100 mA. |
| 3 | ANODE | power_in | Anode terminal, connected to the most negative potential (ground) of the circuit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GOFORD |
| Package | SOT-23 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Cathode Voltage | VKA | 40 | V | 3 | |||
| Continuous Cathode Current Range | IK | -100 | 150 | mA | 3 | ||
| Reference Input Current Range | IREF | 0.05 | 10 | mA | 3 | ||
| Power Dissipation SOT-23-3 | PD | 0.2 | W | at 25℃, SOT-23-3 package | 3 | ||
| Junction Temperature Range | TJ | 0 | 150 | ℃ | 3 | ||
| Operating Temperature Range | Tg | 0 | 70 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 3 | ||
| Thermal Resistance Junction to Ambient SOT-23-3 | RθJA | 625 | ℃/W | SOT-23-3 package | 3 | ||
| Cathode current | IK | 0.5 | 100 | mA | 3 | ||
| Cathode voltage | VKA | 40 | V | min is VREF | 3 | ||
| Reference Input Voltage | VREF | 2.483 | 2.495 | 2.507 | V | IK=10mA,VKA=VREF | 4 |
| Deviation of Reference Input Voltage over Full Temperature Range | VREF | 3 | 17 | mV | Tmin ≤ Ta ≤ Tmax | 4 | |
| Ratio of Change in Reference Input Voltage to Change in Cathode Voltage (10V to VREF) | ΔVREF/ΔVKA | -0.4 | 0 | 2.7 | mV/V | VKA=10V to VREF | 4 |
| Ratio of Change in Reference Input Voltage to Change in Cathode Voltage (36V to 10V) | ΔVREF/ΔVKA | -0.4 | 0 | 2 | mV/V | VKA=36V to 10V | 4 |
| Reference Input Current | IREF | 1.8 | 4 | μA | R1=10K, R2=- | 4 | |
| Deviation of Reference Current over Full Temperature Range | Ii(DEV) | 0.4 | 1.2 | μA | R1=10K, R2=- | 4 | |
| Minimum Cathode Current for Regulation | IKmin | 0.25 | 0.5 | mA | 4 | ||
| Off-State Cathode Current | IK off | 0.17 | 0.9 | μA | VKA=40V VREF=0 | 4 | |
| Dynamic Impedance | ZKA | 0.27 | 0.5 | Ω | IK=10mA to 100mA, f≤1.0kHz | 4 |
CAD (KiCad official)
- Symbol:
431C - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
431c-etched.step/431c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);431c.step/431c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GOFORD datasheet (5 pp, sha256
91d77641536a5039, retrieved 2026-10-22, 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).