component
DB157S
Public Made by Adomby adom
MDD（Microdiode Electronics） Bridge Rectifiers, DBS. 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
markdownDB157S
MDD（Microdiode Electronics） · Bridge Rectifiers · DBS
DB157S from MDD（Microdiode Electronics）, in a DBS. 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 | + | passive | Positive DC output of the bridge; the datasheet marks it "+" and it is the cathode side of the rectifier, rated 1.5 A average forward current. |
| 2 | - | passive | Negative DC output of the bridge; the datasheet marks it "-" and it is the return side, with the device rated up to 1000 V VRRM for the DB157S. |
| 3 | 3 | passive | AC input terminal of the bridge; the DB157S has a VRMS rating of 700 V. |
| 4 | 4 | passive | AC input terminal of the bridge; the DB157S has a VRMS rating of 700 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | DBS |
| Category | Diodes |
| Pins | 4 |
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 | 1000 | V | 1 | |||
| Maximum RMS voltage | VRMS | 700 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 1000 | V | 1 | |||
| Maximum average forward rectified current | IF(AV) | 1.5 | A | at TC=40°C | 1 | ||
| Peak forward surge current | IFSM | 50 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Maximum instantaneous forward voltage drop per leg | VF | 1.1 | V | per leg at 1.5A | 1 | ||
| Maximum DC reverse current | IR | 10 | µA | TA=25°C, at rated DC blocking voltage | 1 | ||
| Maximum DC reverse current | IR | 500 | µA | TA=100°C, at rated DC blocking voltage | 1 | ||
| Operating temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
DB157S - Footprint:
Diode_SMD:Diode_Bridge_Vishay_DFS - 3D model: DBS (KiCad packages3D, STEP)
- 3D model files:
db157s-etched.step/db157s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);db157s.step/db157s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (2 pp, sha256
125bc164a59543be, retrieved 2026-10-21, 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).