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MURS340B
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Yangzhou Yangjie Elec Tech Diodes - Fast Recovery Rectifiers, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MURS340B
Yangzhou Yangjie Elec Tech · Diodes - Fast Recovery Rectifiers · SMB(DO-214AA)
MURS340B from Yangzhou Yangjie Elec Tech, in a SMB(DO-214AA). 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 terminal, marked by the cathode line on the package; MURS340B is rated VRRM 400 V, IO 3.0 A. |
| 2 | A | passive | Anode terminal at the end opposite the cathode line; forward voltage drop is 1.25 V max at IFM = 3.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SMB(DO-214AA) |
| 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 | 400 | V | Ta=25℃ | 1 | ||
| Average rectified output current | IO | 3 | A | 60Hz sine wave, resistance load, TL (Fig.1) | 1 | ||
| Surge (non-repetitive) forward current | IFSM | 100 | 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 | VF | 0.92 | V | IFM=3.0A | 1 | ||
| Maximum reverse recovery time | trr | 35 | ns | IF=0.5A, IR=1.0A, Irr=0.25A | 1 | ||
| Maximum DC reverse current | IRRM | 5 | μA | VRM=VRRM, Ta=25℃ | 1 | ||
| Maximum DC reverse current | IRRM | 50 | μA | VRM=VRRM, Ta=125℃ | 1 | ||
| Typical thermal resistance junction to ambient | RθJ-A | 60 | ℃/W | P.C.B. mounted with 0.3" x 0.3" (8.0 mm x 8.0 mm) copper pad areas | 2 | ||
| Typical thermal resistance junction to lead | RθJ-L | 20 | ℃/W | P.C.B. mounted with 0.3" x 0.3" (8.0 mm x 8.0 mm) copper pad areas | 2 |
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-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
MURS340B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
murs340b-etched.step/murs340b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);murs340b.step/murs340b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
f9618ab676fa91a5, 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).
# MURS340B
**Yangzhou Yangjie Elec Tech** · Diodes - Fast Recovery Rectifiers · SMB(DO-214AA)
MURS340B from Yangzhou Yangjie Elec Tech, in a SMB(DO-214AA). 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 terminal, marked by the cathode line on the package; MURS340B is rated VRRM 400 V, IO 3.0 A. |
| 2 | A | passive | Anode terminal at the end opposite the cathode line; forward voltage drop is 1.25 V max at IFM = 3.0 A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SMB(DO-214AA) |
| 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 | | | 400 | V | Ta=25℃ | 1 |
| Average rectified output current | IO | | | 3 | A | 60Hz sine wave, resistance load, TL (Fig.1) | 1 |
| Surge (non-repetitive) forward current | IFSM | | | 100 | 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 | VF | | | 0.92 | V | IFM=3.0A | 1 |
| Maximum reverse recovery time | trr | | | 35 | ns | IF=0.5A, IR=1.0A, Irr=0.25A | 1 |
| Maximum DC reverse current | IRRM | | | 5 | μA | VRM=VRRM, Ta=25℃ | 1 |
| Maximum DC reverse current | IRRM | | | 50 | μA | VRM=VRRM, Ta=125℃ | 1 |
| Typical thermal resistance junction to ambient | RθJ-A | | 60 | | ℃/W | P.C.B. mounted with 0.3" x 0.3" (8.0 mm x 8.0 mm) copper pad areas | 2 |
| Typical thermal resistance junction to lead | RθJ-L | | 20 | | ℃/W | P.C.B. mounted with 0.3" x 0.3" (8.0 mm x 8.0 mm) copper pad areas | 2 |
## 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-STD-002 and JESD22-B102 | 1 |
## CAD (KiCad official)
- Symbol: `MURS340B`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `murs340b-etched.step` / `murs340b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `murs340b.step` / `murs340b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/murs340b-datasheet.pdf) (5 pp, sha256 `f9618ab676fa91a5`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/murs340b-datasheet.pdf)