# SZMM5Z3V6T5GF

**Nexperia** · Zener Diodes · SOD-523

SZMM5Z3V6T5GF from Nexperia, 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 | Cathode; the marking bar on the package indicates the cathode. |
| 2 | A | passive | Anode of the Zener diode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOD-523 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Tolerance series |  | -2 |  | 2 | % | Series tolerance ± 2 % (Features); not decoded from the MPN | 1 |
| Working voltage (3V6 type) | VZ | 3.53 |  | 3.67 | V | Tj = 25 °C unless otherwise specified | 4 |
| Differential resistance (3V6 type) | rdiff |  |  | 5 | Ω | Tj = 25 °C unless otherwise specified | 4 |
| Temperature coefficient (3V6 type) | SZ | -3.5 |  | 0 | mV/K | Tj = 25 °C unless otherwise specified | 4 |
| Reverse current (3V6 type, first IR column) | IR |  |  | 500 | µA | VR = 1.0 V (row value); Tj = 25 °C unless otherwise specified | 4 |
| Reverse current (3V6 type, second IR column) | IR |  |  | 90 | µA | Tj = 25 °C unless otherwise specified | 4 |
| Diode capacitance (3V6 type) | Cd |  |  | 390 | pF | f = 1 MHz; VR = 0 V | 4 |
| Forward voltage at 10 mA | VF |  |  | 0.9 | V | IF = 10 mA; pulse test tp ≤ 300 μs; δ ≤ 0.02 | 3 |
| Forward voltage at 100 mA | VF |  |  | 1.1 | V | IF = 100 mA; pulse test tp ≤ 300 μs; δ ≤ 0.02 | 3 |
| Forward current | IF |  |  | 200 | mA |  | 3 |
| Non-repetitive peak reverse power dissipation | PZSM |  |  | 40 | W | tp = 100 µs; square wave; Tamb = 25 °C; prior to surge | 3 |
| Total power dissipation | Ptot |  |  | 300 | mW | Tamb = 25 °C; FR4 PCB with approx. 35 mm² Cu area at cathode tab | 3 |
| Junction temperature | Tj |  |  | 150 | °C |  | 3 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 3 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Thermal resistance junction to ambient | Rth(j-a) |  |  | 350 | K/W | In free air; FR4 PCB with approx. 35 mm² Cu area at cathode tab | 3 |
| Thermal resistance junction to solder point | Rth(j-sp) |  |  | 65 | K/W | Soldering point of cathode tab | 3 |

## CAD (KiCad official)

- Symbol: `SZMM5Z3V6T5GF`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `szmm5z3v6t5gf-etched.step` / `szmm5z3v6t5gf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szmm5z3v6t5gf.step` / `szmm5z3v6t5gf.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603146992160034817) (10 pp, sha256 `bfa21c62c6ab6258`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/szmm5z3v6t5gf-datasheet.pdf)