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1SMA5913BT3G-MS
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MSKSEMI Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1SMA5913BT3G-MS
MSKSEMI · Zener Diodes · SMA
1SMA5913BT3G-MS from MSKSEMI, in a SMA. 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 molded polarity notch or cathode band; it is the reverse Zener (regulating) terminal, with VZ 3.13 V min to 3.47 V max at IZT = 113.6 mA for the 1SMA5913B (3.3 V nominal). |
| 2 | A | passive | Anode terminal, opposite the cathode band; the forward voltage is VF = 1.2 V max at IF = 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 3.13 | 3.3 | 3.47 | V | @ IZT = 113.6 mA, TA = 25°C | 3 |
| Zener Test Current | IZT | 113.6 | mA | 3 | |||
| Maximum Zener Impedance | ZZT | 10 | Ω | @ IZT | 3 | ||
| Maximum Zener Impedance (knee) | ZZK | 500 | Ω | @ IZK = 1.0 mA | 3 | ||
| Reverse Leakage Current | IR | 50 | μA | @ VR = 1.0 V | 3 | ||
| Maximum DC Zener Current | IZM | 455 | mA | 3 | |||
| Forward Voltage | VF | 1.2 | V | IF = 200 mA | 3 | ||
| DC Power Dissipation | PD | 1.5 | W | TL = 75°C, zero lead length, 1 in square copper pad FR-4 | 2 | ||
| Power Derating above 75°C | 20 | mW/°C | above 75°C | 2 | |||
| DC Power Dissipation | PD | 0.5 | W | TA = 25°C, FR-4 board, minimum recommended footprint | 2 | ||
| Power Derating above 25°C | 4 | mW/°C | above 25°C | 2 | |||
| Operating and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 2 | ||
| Thermal Resistance, Junction-to-Lead | RθJL | 50 | °C/W | 2 | |||
| Thermal Resistance, Junction-to-Ambient | RθJA | 250 | °C/W | 2 | |||
| Zener Voltage Tolerance | -5 | 5 | % | B suffix, nominal 3.3 V | 3 |
CAD (KiCad official)
- Symbol:
1SMA5913BT3G-MS - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma5913bt3g-ms-etched.step/1sma5913bt3g-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma5913bt3g-ms.step/1sma5913bt3g-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (7 pp, sha256
84b58db054664c6f, 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).
# 1SMA5913BT3G-MS
**MSKSEMI** · Zener Diodes · SMA
1SMA5913BT3G-MS from MSKSEMI, in a SMA. 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 molded polarity notch or cathode band; it is the reverse Zener (regulating) terminal, with VZ 3.13 V min to 3.47 V max at IZT = 113.6 mA for the 1SMA5913B (3.3 V nominal). |
| 2 | A | passive | Anode terminal, opposite the cathode band; the forward voltage is VF = 1.2 V max at IF = 200 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 3.13 | 3.3 | 3.47 | V | @ IZT = 113.6 mA, TA = 25°C | 3 |
| Zener Test Current | IZT | | 113.6 | | mA | | 3 |
| Maximum Zener Impedance | ZZT | | | 10 | Ω | @ IZT | 3 |
| Maximum Zener Impedance (knee) | ZZK | | | 500 | Ω | @ IZK = 1.0 mA | 3 |
| Reverse Leakage Current | IR | | | 50 | μA | @ VR = 1.0 V | 3 |
| Maximum DC Zener Current | IZM | | | 455 | mA | | 3 |
| Forward Voltage | VF | | | 1.2 | V | IF = 200 mA | 3 |
| DC Power Dissipation | PD | | | 1.5 | W | TL = 75°C, zero lead length, 1 in square copper pad FR-4 | 2 |
| Power Derating above 75°C | | | | 20 | mW/°C | above 75°C | 2 |
| DC Power Dissipation | PD | | | 0.5 | W | TA = 25°C, FR-4 board, minimum recommended footprint | 2 |
| Power Derating above 25°C | | | | 4 | mW/°C | above 25°C | 2 |
| Operating and Storage Temperature Range | TJ, Tstg | -65 | | 150 | °C | | 2 |
| Thermal Resistance, Junction-to-Lead | RθJL | | 50 | | °C/W | | 2 |
| Thermal Resistance, Junction-to-Ambient | RθJA | | 250 | | °C/W | | 2 |
| Zener Voltage Tolerance | | -5 | | 5 | % | B suffix, nominal 3.3 V | 3 |
## CAD (KiCad official)
- Symbol: `1SMA5913BT3G-MS`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma5913bt3g-ms-etched.step` / `1sma5913bt3g-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma5913bt3g-ms.step` / `1sma5913bt3g-ms.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MSKSEMI datasheet](docs/1sma5913bt3g-ms-datasheet.pdf) (7 pp, sha256 `84b58db054664c6f`, 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/1sma5913bt3g-ms-datasheet.pdf)