component
RBO40-40G-TR
Public Made by Adomby adom
STMicroelectronics TVS, D2PAK. 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
markdownRBO40-40G-TR
STMicroelectronics · TVS · D2PAK
RBO40-40G-TR from STMicroelectronics, in a D2PAK. 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 | Input | passive | Input (Pin 1) connected to the anode of diode D1 for reverse battery protection, with forward drop VF13 of 1.9 V max at IF = 40 A. |
| 2 | GND | power_in | Ground (Pin 2) connected to the base tab, with the Transil T1/T2 clamping functions referenced to it (breakdown 24 V min, clamping 40 V max). |
| 3 | Output | passive | Output (Pin 3) toward the protected load, with load dump protection by Transil T2 (VBR32 24 V min to 32 V max at 25°C, VCL32 40 V max at IPP = 20 A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | D2PAK |
| Category | TVS/Fuse/Board Level Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage T1 | VBR31 | 22 | 35 | V | IR = 1 mA, -40°C < Tamb < +85°C | 3 | |
| Breakdown voltage T1 at 25°C | VBR31 | 24 | 32 | V | IR = 1 mA, Tamb = 25°C | 3 | |
| Breakdown voltage T2 | VBR32 | 22 | 35 | V | IR = 1 mA, -40°C < Tamb < +85°C | 3 | |
| Breakdown voltage T2 at 25°C | VBR32 | 24 | 32 | V | IR = 1 mA, Tamb = 25°C | 3 | |
| Leakage current T1 | IRM31 | 100 | µA | VRM = 20 V | 3 | ||
| Leakage current T1 at 25°C | IRM31 | 10 | µA | VRM = 20 V, Tamb = 25°C | 3 | ||
| Leakage current T2 | IRM32 | 100 | µA | VRM = 20 V | 3 | ||
| Leakage current T2 at 25°C | IRM32 | 10 | µA | VRM = 20 V, Tamb = 25°C | 3 | ||
| Clamping voltage T1 | VCL31 | 40 | V | IPP = 37.5A, Tj initial = 25°C 10/1000µs | 3 | ||
| Clamping voltage T2 | VCL32 | 40 | V | IPP = 20 A (note 1) | 3 | ||
| Forward voltage D1 | VF13 | 1.9 | V | IF = 40 A | 3 | ||
| Forward voltage D1 | VF13 | 1.45 | V | IF = 20A | 3 | ||
| Forward voltage D1 | VF13 | 1 | V | IF = 1A | 3 | ||
| Forward voltage D1 | VF13 | 0.95 | V | IF = 100 mA | 3 | ||
| Capacitance D1 | C13 | 3000 | pF | F = 1MHz VR=0V | 3 | ||
| Capacitance T1 | C31 | 3000 | pF | F = 1MHz VR = 0V | 3 | ||
| Capacitance T2 | C32 | 8000 | pF | F = 1MHz VR =0V | 3 | ||
| Temperature coefficient of VBR T1 | αT | 9 | 10-4/°C | 3 | |||
| Temperature coefficient of VBR T2 | αT | 9 | 10-4/°C | 3 | |||
| Non repetitive surge peak forward current (D1) | IFSM | 120 | A | tp = 10 ms | 2 | ||
| DC forward current (D1) | IF | 40 | A | Tc = 75°C | 2 | ||
| Peak load dump voltage | VPP | 80 | V | 5 pulses (1 minute between each pulse) | 2 | ||
| Peak pulse power between Input and Output (T1) | PPP | 1500 | W | Tj initial = 25°C, 10/1000 µs | 2 | ||
| Storage and operating junction temperature range | Tstg/Tj | -40 | 150 | °C | 2 | ||
| Maximum lead temperature for soldering | TL | 260 | °C | during 10 s at 4.5mm from case for TO220-AB | 2 | ||
| Thermal resistance junction to case | Rth(j-c) | 1 | °C/W | RBO40-40G | 2 |
CAD (KiCad official)
- Symbol:
RBO40-40G-TR - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: D2PAK (KiCad packages3D, STEP)
- 3D model files:
rbo40-40g-tr-etched.step/rbo40-40g-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rbo40-40g-tr.step/rbo40-40g-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (10 pp, sha256
9804d96cc6aa22a7, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).