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S3AB
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Shandong Jingdao Microelectronics Diodes - General Purpose, SMB(DO-214AA). 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
markdownS3AB
Shandong Jingdao Microelectronics · Diodes - General Purpose · SMB(DO-214AA)
S3AB from Shandong Jingdao Microelectronics, in a SMB(DO-214AA). 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 rectifier diode; S3AB blocks 50 V maximum repetitive peak reverse voltage and passes 3 A average forward current. |
| 2 | Anode | passive | Anode of the rectifier diode; maximum instantaneous forward voltage is 1.1 V at 3 A and peak forward surge current is 90 A (8.3 ms half sine). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SMB(DO-214AA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | 50 | V | 1 | |||
| Maximum RMS voltage | VRMS | 35 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 50 | V | 1 | |||
| Maximum Average Forward Rectified Current | IF(AV) | 3 | A | Single phase half-wave 60 Hz, resistive or inductive load | 1 | ||
| Peak Forward Surge Current | IFSM | 90 | A | 8.3 ms single half sine wave superimposed on rated load | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 1.1 | V | at 3 A | 1 | ||
| Maximum DC Reverse Current | IR | 5 | μA | Ta=25 °C, at rated DC blocking voltage | 1 | ||
| Maximum DC Reverse Current | IR | 100 | μA | Ta=125 °C, at rated DC blocking voltage | 1 | ||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Typical Junction Capacitance | Cj | 35 | pF | Measured at 1 MHz and applied reverse voltage of 4 V D.C | 1 | ||
| Typical Thermal Resistance | RθJA | 48 | °C/W | P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pad areas | 1 | ||
| Typical Thermal Resistance | RθJC | 16 | °C/W | P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pad areas | 1 |
CAD (KiCad official)
- Symbol:
S3AB - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
s3ab-etched.step/s3ab-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s3ab.step/s3ab.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256
e7c97f83deec8f30, retrieved 2026-10-23, 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).