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JSM4734A
Public Made by Adomby adom
JSMSEMI Zener Diodes, DO-214AC(SMA). 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
markdownJSM4734A
JSMSEMI · Zener Diodes · DO-214AC(SMA)
JSM4734A from JSMSEMI, in a DO-214AC(SMA). 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, marked by the color band on the SMA (DO-214AC) package; the zener (5.6 V nominal at 45 mA for JSM4734A) is reverse biased with this terminal positive. |
| 2 | A | passive | Anode terminal of the zener diode, opposite the color-banded cathode end of the SMA (DO-214AC) package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | DO-214AC(SMA) |
| 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 | VZ | 5.6 | V | @ IZT = 45.0 mA | 2 | ||
| Zener Voltage Tolerance | -5 | 5 | % | standard tolerance on nominal zener voltage | 2 | ||
| Zener Test Current | IZT | 45 | mA | 2 | |||
| Maximum Zener Impedance | ZZT | 5 | Ω | @ IZT | 2 | ||
| Maximum Zener Knee Impedance | ZZK | 600 | Ω | @ IZK = 1.0 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 10 | µA | @ VR = 2.0 V | 2 | ||
| Maximum DC Zener Current | IZM | 162 | mA | 2 | |||
| Maximum Surge Current | IRM | 810 | mApk | non-repetitive, 8.3ms pulse width square wave superimposed on IZT | 2 | ||
| DC Power Dissipation | PD | 1 | W | TL = 75 °C, PCB mounted on 8x8x2mm copper pads | 1 | ||
| Maximum Forward Voltage | VF | 1.2 | V | IF = 200 mA | 1 | ||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | Ts | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
JSM4734A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
jsm4734a-etched.step/jsm4734a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jsm4734a.step/jsm4734a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (2 pp, sha256
34921f2f59fe170a, retrieved 2026-10-22, tier: lcsc) - 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).