component
1SMA4737_R1_00001
Public Made by Adomby adom
PANJIT International Zener Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdown1SMA4737_R1_00001
PANJIT International · Zener Diodes · SMA(DO-214AC)
1SMA4737_R1_00001 from PANJIT International, in a SMA(DO-214AC). 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 | Cathode | passive | Cathode of the 1SMA4737 zener diode, marked by the color band at the cathode end of the SMA body, with the device rated at 1 W and derated above 50°C per the datasheet. |
| 2 | Anode | passive | Anode of the 1SMA4737 zener diode, the terminal opposite the color-banded cathode, for a device with junction and storage temperature range of -55 to +150°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | SMA(DO-214AC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage (Nom.) for 1SMA4737 | 7.5 | V | Nominal zener voltage; test current IZT 34 mA | 2 | |||
| Zener Voltage, Min | 7.13 | V | At IZT 34 mA | 2 | |||
| Zener Voltage, Max | 7.88 | V | At IZT 34 mA | 2 | |||
| Zener voltage tolerance (standard) | -5 | 5 | % | Standard tolerance on nominal zener voltage per note C; no tolerance letter in this MPN | 1 | ||
| Maximum Zener Impedance ZZT | Z | 4 | Ω | At IZT 34 mA | 2 | ||
| Maximum Zener Impedance ZZK | Z | 700 | Ω | At IZK 0.5 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 5 | uA | At VR 5 V | 2 | ||
| Power rating | 1 | W | Rated power as printed in header (POWER 1 Watt); ratings at 25°C ambient | 1 |
CAD (KiCad official)
- Symbol:
1SMA4737_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
1sma4737-r1-00001-etched.step/1sma4737-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4737-r1-00001.step/1sma4737-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (8 pp, sha256
ce9ae7ae60febaf2, retrieved 2026-10-13, 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).