component
TL431CLPRPG
Public Made by Adomby adom
onsemi Voltage Reference, TO-92-2.54mm. 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
markdownTL431CLPRPG
onsemi · Voltage Reference · TO-92-2.54mm
TL431CLPRPG from onsemi, in a TO-92-2.54mm. 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 TL431 that sets the output via the external divider, with a continuous reference input current range of −0.05 to +10 mA. |
| 2 | Anode | passive | Anode terminal of the shunt regulator, with cathode-to-anode voltage rated at 37 V maximum (recommended Vref to 36 V). |
| 3 | Cathode | passive | Cathode terminal of the shunt regulator, recommended to operate at 1.0 mA to 100 mA with a continuous absolute range of −100 to +150 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-92-2.54mm |
| 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 Input Voltage (25°C) | Vref | 2.44 | 2.495 | 2.55 | V | VKA = Vref, IK = 10 mA, TA = 25°C | 3 |
| Reference Input Voltage (over temperature) | Vref | 2.423 | 2.567 | V | VKA = Vref, IK = 10 mA, TA = Tlow to Thigh (Note 2) | 3 | |
| Reference Input Voltage Deviation Over Temperature Range | Vref | 3 | 17 | mV | VKA = Vref, IK = 10 mA | 3 | |
| Ratio of Change in Reference Input Voltage to Cathode Voltage (VKA = 10 V to Vref) | Vref/VKA | -1.4 | -2.7 | mV/V | IK = 10 mA (Figure 2), VKA = 10 V to Vref | 3 | |
| Ratio of Change in Reference Input Voltage to Cathode Voltage (VKA = 36 V to 10 V) | Vref/VKA | -1 | -2 | mV/V | IK = 10 mA (Figure 2), VKA = 36 V to 10 V | 3 | |
| Reference Input Current (25°C) | Iref | 1.8 | 4 | μA | IK = 10 mA, R1 = 10 k, R2 = ∞, TA = 25°C | 3 | |
| Reference Input Current (over temperature) | Iref | 5.2 | μA | IK = 10 mA, R1 = 10 k, R2 = ∞, TA = Tlow to Thigh (Note 2) | 3 | ||
| Reference Input Current Deviation Over Temperature Range | Iref | 0.4 | 1.2 | μA | IK = 10 mA, R1 = 10 k, R2 = ∞ | 3 | |
| Minimum Cathode Current For Regulation | Imin | 0.5 | 1 | mA | VKA = Vref | 3 | |
| Off-State Cathode Current | Ioff | 20 | 1000 | nA | VKA = 36 V, Vref = 0 V | 3 | |
| Dynamic Impedance | /ZKA/ | 0.22 | 0.5 | Ω | VKA = Vref, IK = 1.0 mA to 100 mA, f ≤ 1.0 kHz | 3 | |
| Voltage reference tolerance (ordering table, TL431C grade) | -2.2 | 2.2 | % | Tolerance code for TL431CLPRPG per ordering table | 13 | ||
| Cathode to Anode Voltage (recommended) | VKA | 36 | V | 2 | |||
| Cathode Current (recommended) | IK | 1 | 100 | mA | 2 | ||
| Cathode to Anode Voltage (absolute maximum) | VKA | 37 | V | 2 | |||
| Cathode Current Range, Continuous | IK | -100 | 150 | mA | 2 | ||
| Reference Input Current Range, Continuous | Iref | -0.05 | 10 | mA | 2 | ||
| Operating Junction Temperature | TJ | 150 | °C | 2 | |||
| Operating Ambient Temperature Range (TL431C grade) | TA | 0 | 70 | °C | TL431C, TL431AC, TL431BC | 2 | |
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| ESD Human Body Model | HBM | 2000 | V | JEDEC JESD22-A114F; datasheet prints >2000 | 2 | ||
| ESD Machine Model | MM | 200 | V | JEDEC JESD22-A115C; datasheet prints >200 | 2 | ||
| ESD Charged Device Model | CDM | 500 | V | JEDEC JESD22-C101E; datasheet prints >500 | 2 | ||
| Thermal Resistance, Junction-to-Ambient | RJA | 178 | °C/W | D, LP Suffix Package | 3 | ||
| Thermal Resistance, Junction-to-Case | RJC | 83 | °C/W | D, LP Suffix Package | 3 |
CAD (KiCad official)
- Symbol:
TL431CLPRPG - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-2.54mm (KiCad packages3D, STEP)
- 3D model files:
tl431clprpg-etched.step/tl431clprpg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl431clprpg.step/tl431clprpg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (18 pp, sha256
922e22f14c14db6a, retrieved 2026-10-09, 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).