component
1N4937-B
Public Made by Adomby adom
GOODWORK Fast Recovery / High Efficiency Diodes, 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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1N4937-B
GOODWORK · Fast Recovery / High Efficiency Diodes · DO-41
1N4937-B from GOODWORK, 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 | GOODWORK |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Recurrent Peak Reverse Voltage | 600 | V | 1 | ||||
| Maximum DC Blocking Voltage | 600 | V | 1 | ||||
| Maximum RMS Voltage | 420 | V | 1 | ||||
| Maximum Average Forward Rectified Current | 1 | A | 1 | ||||
| Peak Forward Surge Current | 30 | A | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) | 1 | |||
| Maximum Instantaneous Forward Voltage | 1.2 | V | at 1.0A | 1 | |||
| Maximum DC Reverse Current | 5 | µA | Ta=25 C; at Rated DC Blocking Voltage | 1 | |||
| Maximum DC Reverse Current | 100 | µA | Ta=100 C; at Rated DC Blocking Voltage | 1 | |||
| Maximum Reverse Recovery Time | trr | 200 | nS | IF=1.0A, VR=30V | 1 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Typical Junction Capacitance | 15 | pF | Measured at 1MHz and applied reverse voltage of 4.0V D.C. | 1 |
CAD (KiCad official)
- Symbol:
1N4937-B - 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: GOODWORK datasheet (3 pp, sha256
c37396375991a156, 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).