1N4937G
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Diodes - Fast Recovery Rectifiers, DO-41. 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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗PCB Footprint
Open full view ↗Datasheet
Open in new tab ↗Contents
README
markdown1N4937G
Yangzhou Yangjie Elec Tech · Diodes - Fast Recovery Rectifiers · DO-41
1N4937G from Yangzhou Yangjie Elec Tech, in a DO-41. 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 | Yangzhou Yangjie Elec Tech |
| Package | DO-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 600 | V | 1 | |||
| Average Forward Current | IF(AV) | 1 | A | @60Hz sine wave, Resistance load, Ta=75℃ | 1 | ||
| Forward Surge Current (Non-repetitive) | IFSM | 30 | A | @60Hz Half-sine wave,1 cycle, Ta=25℃ | 1 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Maximum instantaneous forward voltage drop per diode | VFM | 1.2 | V | IFM=1.0A | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage per diode (Ta=25℃) | IRRM1 | 2.5 | μA | Ta=25℃ | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage per diode (Ta=100℃) | IRRM2 | 100 | μA | Ta=100℃ | 1 | ||
| Reverse Recovery time | trr | 150 | ns | IF=0.5A IR=1A IRR=0.25A | 1 | ||
| Typical junction capacitance | Cj | 10 | pF | Measured at 1MHZ and Applied Reverse Voltage of 4.0 V.D.C. | 1 | ||
| Thermal Resistance (Typical), junction to ambient | RθJ-A | 60 | ℃/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD002 and JESD22-B102 ● Polarity:Color band denotes cathode end | 1 |
CAD (KiCad official)
- Symbol:
1N4937G - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
dbcbbbef349b8b6c, retrieved 2026-10-21, 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).