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RCLAMP2451ZATFT
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SEMTECH ESD And Surge Protection (TVS/ESD), 0201. 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
markdownRCLAMP2451ZATFT
SEMTECH · ESD And Surge Protection (TVS/ESD) · 0201
RCLAMP2451ZATFT from SEMTECH, in a 0201. 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 | PIN 1 | passive | One of two terminals of the bidirectional, electrically symmetrical 1-line ESD protection device; the datasheet specifies a 24 V reverse stand-off (VRWM) between pin 1 and pin 2 in either direction. |
| 2 | PIN 2 | passive | The other of two terminals of the bidirectional, electrically symmetrical 1-line ESD protection device; the datasheet specifies a 24 V reverse stand-off (VRWM) between pin 2 and pin 1 in either direction. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | 0201 |
| Category | Circuit 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 25.5 | 27.5 | 31 | V | IBR = 10 μA | 2 |
| Reverse Leakage Current | IR | 50 | nA | VRWM = 24V | 2 | ||
| Clamping Voltage (IPP = 1A) | VC | 4.5 | 7 | V | IPP = 1A, tp = 1.2/50µs (Voltage), 8/20µs (Current) Combination Waveform, RS = 12 Ω | 2 | |
| Clamping Voltage (IPP = 4A) | VC | 5.5 | 8 | V | IPP = 4A, tp = 1.2/50µs (Voltage), 8/20µs (Current) Combination Waveform, RS = 12 Ω | 2 | |
| Junction Capacitance | CJ | 0.35 | 0.45 | pF | VR = 0V, f = 1MHz | 2 | |
| Reverse Stand-Off Voltage | VRWM | 24 | V | Pin 1 to 2 or Pin 2 to 1 | 2 | ||
| Peak Pulse Power | PPK | 32 | W | tp = 8/20µs | 2 | ||
| Peak Pulse Current | IPP | 4 | A | tp = 8/20µs | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -18 | 18 | kV | per IEC 61000-4-2 (Air) | 2 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -14 | 14 | kV | per IEC 61000-4-2 (Contact) | 2 | |
| Operating Temperature | TJ | -40 | 85 | °C | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 | ||
| ESD Clamping Voltage (I = 4A) | VC | 5 | V | I = 4A, tp = 0.2/100ns | 2 | ||
| ESD Clamping Voltage (I = 16A) | VC | 7 | V | I = 16A, tp = 0.2/100ns | 2 | ||
| Dynamic Resistance | RDYN | 0.16 | Ω | tp = 0.2/100ns | 2 |
CAD (KiCad official)
- Symbol:
RCLAMP2451ZATFT - Footprint:
Diode_SMD:D_0201_0603Metric - 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal 01005 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
rclamp2451zatft-etched.step/rclamp2451zatft-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rclamp2451zatft.step/rclamp2451zatft.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMTECH datasheet (8 pp, sha256
b6593e11c88b6b01, retrieved 2026-10-23, 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).