component
SF38 TB
Public Made by Adomby adom
YFW Diodes - Fast Recovery Rectifiers, DO-27. Pinout cross-checked by two models against the datasheet, 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 ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSF38 TB
YFW · Diodes - Fast Recovery Rectifiers · DO-27
SF38 TB from YFW, in a DO-27. 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 end marked with the cathode band on the DO-201AD/DO-27 body; the part blocks up to 600 V (SF38 VRRM) and conducts 3.0 A average forward current. |
| 2 | A | passive | Anode, the lead opposite the cathode mark; SF38 has a maximum forward voltage of 1.7 V at 3.0 A and a maximum DC blocking voltage of 600 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | DO-27 |
| 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 Repetitive Peak Reverse Voltage | VRRM | 600 | V | 1 | |||
| Maximum RMS Voltage | VRMS | 420 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 600 | V | 1 | |||
| Maximum Average Forward Rectified Current | IF(AV) | 3 | A | Tc = 100 °C | 1 | ||
| Peak Forward Surge Current | IFSM | 150 | A | 8.3 ms single half sine wave superimposed on rated load | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 1.7 | V | IF = 3.0 A | 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 = 125 °C, at rated DC blocking voltage | 1 | ||
| Maximum Reverse Recovery Time | Trr | 35 | nS | IF=0.5A IR=1.0A Irr=0.25A | 1 | ||
| Typical Junction Capacitance | Cj | 70 | pF | Measured at 1 MHz and applied reverse voltage of 4 V D.C | 1 | ||
| Typical Thermal Resistance | RθJA | 45 | °C/W | 1 | |||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SF38 TB - Footprint:
Diode_THT:D_DO-27_P15.24mm_Horizontal - 3D model: DO-27 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (3 pp, sha256
65f9498afa6a1c36, 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).