component
P3500SA
Public Made by Adomby adom
NH Semiconductor Discharge Tubes (TSS), SMB. 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
markdownP3500SA
NH · Semiconductor Discharge Tubes (TSS) · SMB
P3500SA from NH, in a SMB. 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 | 1 | passive | Terminal 1 of the two-terminal thyristor surge suppressor (VDRM 320 V, VS 400 V max for P3500SA), which switches to on-state above VS with IH 150 mA. |
| 2 | 2 | passive | Terminal 2 of the two-terminal thyristor surge suppressor (VDRM 320 V, VS 400 V max for P3500SA), which switches to on-state above VS with IH 150 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NH |
| Package | SMB |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak off-state voltage | VDRM | 320 | V | TA=25°C | 3 | ||
| Switching voltage | VS | 400 | V | TA=25°C | 3 | ||
| On-state voltage | VT | 4 | V | TA=25°C | 3 | ||
| Leakage current | IDRM | 5 | uA | TA=25°C | 3 | ||
| Switching current | IS | 800 | mA | TA=25°C | 3 | ||
| On-state current | IT | 2.2 | A | TA=25°C | 3 | ||
| Holding current | IH | 150 | mA | TA=25°C | 3 | ||
| Peak pulse current, 2x10us | IPP | 150 | A | 2x10us | 3 | ||
| Peak pulse current, 8x20us | IPP | 150 | A | 8x20us | 3 | ||
| Peak pulse current, 10x160us | IPP | 90 | A | 10x160us | 3 | ||
| Peak pulse current, 10x560us | IPP | 50 | A | 10x560us | 3 | ||
| Peak pulse current, 10x1000us | IPP | 45 | A | 10x1000us | 3 | ||
| Peak pulse voltage | VPP | 2000 | V | 10x700us | 3 | ||
| Surge current (ITSM) | ITSM | 20 | A | 60Hz | 3 | ||
| di/dt | di/dt | 500 | A/us | 3 | |||
| Operating junction temperature range | TJ | -40 | 150 | ℃ | 1 | ||
| Storage temperature range | TSTG | -40 | 150 | ℃ | 1 | ||
| Off-state capacitance | CO | 30 | pF | TA=25°C | 3 | ||
| Thermal resistance junction to ambient | RθJA | 90 | ℃/W | Device mounted on 1 in2 FR-4 board with 2oz. copper, steady-state | 1 |
CAD (KiCad official)
- Symbol:
P3500SA - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
p3500sa-etched.step/p3500sa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p3500sa.step/p3500sa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NH datasheet (8 pp, sha256
976a9031a46d1712, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).