component
ER3G
Public Made by Adomby adom
DIYI Elec Tech Fast Recovery / High Efficiency Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownER3G
DIYI Elec Tech · Fast Recovery / High Efficiency Diodes · SMB
ER3G from DIYI Elec Tech, in a SMB. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DIYI Elec Tech |
| Package | SMB |
| 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 Recurrent Peak Reverse Voltage | VRRM | 400 | V | 1 | |||
| Maximum RMS Voltage | VRMS | 280 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 400 | V | 1 | |||
| Average Rectified Output Current | IF(AV) | 3 | A | 1 | |||
| Peak Reverse Current | 5 | uA | At Rated DC Blocking Voltage | 1 | |||
| Maximum Reverse Recovery Time | Trr | 35 | ns | Note 1: IF=0.5A, IR=1.0A, IRR=0.25A | 1 | ||
| Typical Junction Capacitance | CJ | 50 | pF | Note 2: measured at 1.0 MHz and applied reverse voltage of 4.0 V | 1 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 65 | ℃/W | Note 3: junction to ambient, leads mounted on P.C.B. with 0.3 x 0.3 in (8.0 x 8.0 mm) copper pad areas | 1 | ||
| Operating Temperature Range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 | ||
| Rating for fusing | I2t | 50.2 | A s2 | t < 8.3 ms | 1 |
CAD (KiCad official)
- Symbol:
ER3G - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
er3g-etched.step/er3g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);er3g.step/er3g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DIYI Elec Tech datasheet (3 pp, sha256
40b058af2b0c05e4, retrieved 2026-10-14, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).