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SCV431BSN1T1G
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onsemi Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SCV431BSN1T1G
onsemi · Voltage Reference · SOT-23
SCV431BSN1T1G from onsemi, 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 | Reference | passive | Reference input of the 1.24 V shunt regulator; it sets the output via the R1/R2 divider, with reference input current specified at 0.05 to 10 mA continuous. |
| 2 | Anode | passive | Anode is the common terminal of the shunt regulator, with cathode-to-anode voltage limited to 16 V recommended and 18 V maximum. |
| 3 | Cathode | passive | Cathode is the shunt current path, operated over a recommended current range of 0.1 to 20 mA, with continuous absolute maximum cathode current of -20 to 25 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (VKA = Vref, IK = 10 mA, TA = 25°C) | Vref | 1.234 | 1.24 | 1.246 | V | VKA = Vref, IK = 10 mA, TA = 25°C | 6 |
| Reference Voltage (TA = 40°C to 85°C) | Vref | 1.228 | 1.252 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 6 | |
| Reference Voltage (TA = 40°C to 125°C) | Vref | 1.224 | 1.252 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 6 | |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 85°C) | Vref | 7.2 | 20 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 6 | |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 125°C) | Vref | 7.2 | 24 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 6 | |
| Ratio of Reference Input Voltage Change to Cathode Voltage Change | Vref/VKA | -0.6 | -1.5 | mV/V | VKA = Vref to 16 V, IK = 10 mA | 6 | |
| Reference Terminal Current | Iref | 0.15 | 0.3 | µA | IK = 10 mA, R1 = 10 k, R2 = open | 6 | |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 85°C) | Iref | 0.04 | 0.08 | µA | IK = 10 mA, R1 = 10 k, R2 = open, TA = 40°C to 85°C | 6 | |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 125°C) | Iref | 0.1 | µA | IK = 10 mA, R1 = 10 k, R2 = open, TA = 40°C to 125°C | 6 | ||
| Minimum Cathode Current for Regulation | IK(min) | 30 | 80 | µA | Figure 3 | 6 | |
| Off-State Cathode Current (VKA = 6.0 V, Vref = 0) | IK(off) | 0.01 | 0.04 | µA | VKA = 6.0 V, Vref = 0 | 6 | |
| Off-State Cathode Current (VKA = 16 V, Vref = 0) | IK(off) | 0.012 | 0.05 | µA | VKA = 16 V, Vref = 0 | 6 | |
| Dynamic Impedance | /ZKA/ | 0.25 | 0.4 | Ω | VKA = Vref, IK = 0.1 mA to 20 mA, f ≤ 1.0 kHz | 6 | |
| Cathode to Anode Voltage (recommended) | VKA | 16 | V | Minimum is printed as Vref (not a number) | 2 | ||
| Cathode Current (recommended) | IK | 0.1 | 20 | mA | 2 | ||
| Cathode to Anode Voltage | VKA | 18 | V | 2 | |||
| Cathode Current Range, Continuous | IK | -20 | 25 | mA | Continuous | 2 | |
| Reference Input Current Range, Continuous | Iref | 0.05 | 10 | mA | Continuous | 2 | |
| Operating Junction Temperature | TJ | 150 | °C | 2 | |||
| Operating Ambient Temperature Range (NCV431, SCV431) | TA | -40 | 125 | °C | NCV431, SCV431 grade | 2 | |
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Thermal Resistance, Junction-to-Ambient (SOT-23-3) | RJA | 491 | °C/W | SN1 Suffix Package, SOT-23-3 | 2 |
CAD (KiCad official)
- Symbol:
SCV431BSN1T1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
scv431bsn1t1g-etched.step/scv431bsn1t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);scv431bsn1t1g.step/scv431bsn1t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (17 pp, sha256
72602b7cc10459f4, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# SCV431BSN1T1G
**onsemi** · Voltage Reference · SOT-23
SCV431BSN1T1G from onsemi, 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 | Reference | passive | Reference input of the 1.24 V shunt regulator; it sets the output via the R1/R2 divider, with reference input current specified at 0.05 to 10 mA continuous. |
| 2 | Anode | passive | Anode is the common terminal of the shunt regulator, with cathode-to-anode voltage limited to 16 V recommended and 18 V maximum. |
| 3 | Cathode | passive | Cathode is the shunt current path, operated over a recommended current range of 0.1 to 20 mA, with continuous absolute maximum cathode current of -20 to 25 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (VKA = Vref, IK = 10 mA, TA = 25°C) | Vref | 1.234 | 1.24 | 1.246 | V | VKA = Vref, IK = 10 mA, TA = 25°C | 6 |
| Reference Voltage (TA = 40°C to 85°C) | Vref | 1.228 | | 1.252 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 6 |
| Reference Voltage (TA = 40°C to 125°C) | Vref | 1.224 | | 1.252 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 6 |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 85°C) | Vref | | 7.2 | 20 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 6 |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 125°C) | Vref | | 7.2 | 24 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 6 |
| Ratio of Reference Input Voltage Change to Cathode Voltage Change | Vref/VKA | | -0.6 | -1.5 | mV/V | VKA = Vref to 16 V, IK = 10 mA | 6 |
| Reference Terminal Current | Iref | | 0.15 | 0.3 | µA | IK = 10 mA, R1 = 10 k, R2 = open | 6 |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 85°C) | Iref | | 0.04 | 0.08 | µA | IK = 10 mA, R1 = 10 k, R2 = open, TA = 40°C to 85°C | 6 |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 125°C) | Iref | | | 0.1 | µA | IK = 10 mA, R1 = 10 k, R2 = open, TA = 40°C to 125°C | 6 |
| Minimum Cathode Current for Regulation | IK(min) | | 30 | 80 | µA | Figure 3 | 6 |
| Off-State Cathode Current (VKA = 6.0 V, Vref = 0) | IK(off) | | 0.01 | 0.04 | µA | VKA = 6.0 V, Vref = 0 | 6 |
| Off-State Cathode Current (VKA = 16 V, Vref = 0) | IK(off) | | 0.012 | 0.05 | µA | VKA = 16 V, Vref = 0 | 6 |
| Dynamic Impedance | /ZKA/ | | 0.25 | 0.4 | Ω | VKA = Vref, IK = 0.1 mA to 20 mA, f ≤ 1.0 kHz | 6 |
| Cathode to Anode Voltage (recommended) | VKA | | | 16 | V | Minimum is printed as Vref (not a number) | 2 |
| Cathode Current (recommended) | IK | 0.1 | | 20 | mA | | 2 |
| Cathode to Anode Voltage | VKA | | | 18 | V | | 2 |
| Cathode Current Range, Continuous | IK | -20 | | 25 | mA | Continuous | 2 |
| Reference Input Current Range, Continuous | Iref | 0.05 | | 10 | mA | Continuous | 2 |
| Operating Junction Temperature | TJ | | | 150 | °C | | 2 |
| Operating Ambient Temperature Range (NCV431, SCV431) | TA | -40 | | 125 | °C | NCV431, SCV431 grade | 2 |
| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |
| Thermal Resistance, Junction-to-Ambient (SOT-23-3) | RJA | | 491 | | °C/W | SN1 Suffix Package, SOT-23-3 | 2 |
## CAD (KiCad official)
- Symbol: `SCV431BSN1T1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `scv431bsn1t1g-etched.step` / `scv431bsn1t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `scv431bsn1t1g.step` / `scv431bsn1t1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588936065969229824) (17 pp, sha256 `72602b7cc10459f4`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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).
[Datasheet PDF](docs/scv431bsn1t1g-datasheet.pdf)