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DESD5V0U1BB-7
Public Made by Adomby adom
Diodes Incorporated TVS, SOD-523. 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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Contents
README
markdownDESD5V0U1BB-7
Diodes Incorporated · TVS · SOD-523
DESD5V0U1BB-7 from Diodes Incorporated, in a SOD-523. 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 | Bidirectional TVS diode terminal 1 (marked K in the device schematic), the single ESD-protected channel with IEC 61000-4-2 contact ±10kV protection, VRWM 5V max, and symmetric with pin 2. |
| 2 | K | passive | Bidirectional TVS diode terminal 2 (marked K in the device schematic), the second terminal of the single protected channel with VRWM 5V max; the device is symmetric so either terminal can connect to the signal line or to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 2 |
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 Standoff Voltage | VRWM | 5 | V | 2 | |||
| Channel Leakage Current | IRM | 5 | 100 | nA | VRWM = 5V | 2 | |
| Breakdown Voltage | VBR | 5.5 | 7 | 9.5 | V | IR = 5mA | 2 |
| Differential Resistance | RDIF | 100 | Ω | IR = 1mA | 2 | ||
| Peak Pulse Current | IPP | 3 | A | 8/20µs, per Figure 3 | 2 | ||
| ESD Protection, Contact Discharge | VESD_Contact | -10 | 10 | kV | IEC 61000-4-2 Standard | 2 | |
| Package Power Dissipation | PD | 250 | mW | Note 6 | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 500 | °C/W | Note 6 | 2 | ||
| Clamping Voltage | VCL | 7.2 | V | IPP = 3A, tp = 8/20µs | 2 | ||
| Dynamic Impedance | Rdyn | 0.3 | Ω | TLP, 20A, tp = 100 ns | 2 | ||
| Channel Input Capacitance | CT | 2.9 | pF | VR = 0V, f = 1MHz | 2 | ||
| Channel Input Capacitance | CT | 1.9 | pF | VR = 5V, f = 1MHz | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe (Lead-Free Plating). Solderable per MIL-STD-202, Method 208 | 1 |
CAD (KiCad official)
- Symbol:
DESD5V0U1BB-7 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
desd5v0u1bb-7-etched.step/desd5v0u1bb-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);desd5v0u1bb-7.step/desd5v0u1bb-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (5 pp, sha256
317439b2dd2dc34b, 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).