component
BY133
Public Made by Adomby adom
SUNMATE Elec Diodes - General Purpose, DO-41. 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
markdownBY133
SUNMATE Elec · Diodes - General Purpose · DO-41
BY133 from SUNMATE Elec, 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, marked by the cathode band on the DO-41 body; the diode blocks up to 1300 V VRRM and conducts 1.0 A average forward current in the forward direction. |
| 2 | A | passive | Anode lead of the axial rectifier; forward voltage is 1.0 V maximum at IF = 1.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 1300 | V | 1 | |||
| Working Peak Reverse Voltage | VRWM | 1300 | V | 1 | |||
| DC Blocking Voltage | VR | 1300 | V | 1 | |||
| RMS Reverse Voltage | VR(RMS) | 910 | V | 1 | |||
| Average Rectified Output Current | IO | 1 | A | @TA = 75°C, Note 1 | 1 | ||
| Non-Repetitive Peak Forward Surge Current | IFSM | 30 | A | 8.3ms Single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Forward Voltage | VFM | 1 | V | @IF = 1.0A | 1 | ||
| Peak Reverse Current | IRM | 5 | µA | @TA = 25°C, at rated DC blocking voltage | 1 | ||
| Peak Reverse Current | IRM | 50 | µA | @TA = 100°C, at rated DC blocking voltage | 1 | ||
| Operating Temperature Range | Tj | -65 | 125 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 1 | ||
| Typical Thermal Resistance Junction to Ambient | RJA | 50 | K/W | Note 1: leads at ambient temperature at 9.5mm from case | 1 | ||
| Typical Junction Capacitance | Cj | 15 | pF | Measured at 1.0 MHz and applied reverse voltage of 4.0V D.C. | 1 |
CAD (KiCad official)
- Symbol:
BY133 - 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: SUNMATE Elec datasheet (2 pp, sha256
dc60a76922f304af, retrieved 2026-10-22, 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).