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BS61089B-8
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Bencent Thyristors (SCR)/Modules, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BS61089B-8
Bencent · Thyristors (SCR)/Modules · SOP-8
BS61089B-8 from Bencent, in a SOP-8. 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 | K1 | passive | Cathode 1 (Tip) of the thyristor surge suppressor, connected to pin 8; repetitive peak off-state voltage -170 V with VGK=0. |
| 2 | G | input | Gate (programming) input that sets the protection voltage over the -20 V to -155 V range, with gate trigger current 5 mA max and repetitive peak gate-cathode voltage -167 V. |
| 3 | NC | unconnected | No connection. |
| 4 | K2 | passive | Cathode 2 (Ring) of the thyristor surge suppressor, connected to pin 5; repetitive peak off-state voltage -170 V with VGK=0. |
| 5 | K2 | passive | Cathode 2 (Ring) of the thyristor surge suppressor, connected to pin 4; non-repetitive peak on-state pulse current 40 A (5/320uS). |
| 6 | A | power_in | Anode (Ground) common reference of the suppressor, same net as pin 7. |
| 7 | A | power_in | Anode (Ground) common reference of the suppressor, same net as pin 6. |
| 8 | K1 | passive | Cathode 1 (Tip) of the thyristor surge suppressor, connected to pin 1; non-repetitive peak on-state pulse current 40 A (5/320uS). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bencent |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |
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 off-state voltage | VDRM | -170 | V | VGK=0 | 1 | ||
| Repetitive peak gate-cathode voltage | VGKRM | -167 | V | VKA=0 | 1 | ||
| Storage temperature range | Tstg | -40 | 150 | ℃ | 1 | ||
| Operating junction temperature | Tj | -40 | 150 | ℃ | 1 | ||
| Non-repetitive peak on-state pulse current | ITSP | 40 | A | 5/320us (ITU-TK.20/21/45, YD/T950, open-circuit voltage wave shape 10/700us) | 1 | ||
| Non-repetitive peak on-state current | ITSM | 6.5 | A | 60Hz, 0.1 s | 1 | ||
| Non-repetitive peak on-state current | ITSM | 3.6 | A | 60Hz, 1 s | 1 | ||
| Non-repetitive peak on-state current | ITSM | 2.2 | A | 60Hz, 5 s | 1 | ||
| Non-repetitive peak on-state current | ITSM | 0.9 | A | 60Hz, 300 s | 1 | ||
| Surge peak pulse current rating | IPP | 30 | A | Current waveform 10/1000us, voltage waveform 10/1000us | 3 | ||
| Storage temperature range | TS | -60 | 150 | ℃ | 3 | ||
| Forward voltage | VF | 3 | V | IF=5A, tw=200us | 2 | ||
| Peak forward recovery voltage | VFRM | 10 | V | 2/10us, IF=100A, Rs=50Ω, di/dt=80A/us | 2 | ||
| Off-state current | IDRM | -5 | uA | VDRM=-170V, VGK=0, Tj=25℃ | 2 | ||
| Switching voltage | VS | -112 | V | 2/10us, ITM=-100A, Rs=50Ω, di/dt=-80A/us, VGG=-100V | 2 | ||
| Holding current | IH | -150 | mA | IT=-1A, di/dt=1A/mS, VGG=-100V | 2 | ||
| Gate reverse current | IGAS | -5 | uA | VGG=VGK=-167V, VKA=0, Tj=25℃ | 2 | ||
| Gate trigger current | IGT | 5 | mA | IT=-3A, tp(g)≥20us, VGG=-100V | 2 | ||
| Gate trigger voltage | VGT | 2.5 | V | IT=-3A, tp(g)≥20us, VGG=-100V | 2 | ||
| Anode-cathode off-state capacitance | CAK | 100 | pF | F=1MHz, Vd=1V, IG=0, VD=-3V | 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 | Copper Alloy | Lead Material Copper Alloy | 3 |
CAD (KiCad official)
- Symbol:
BS61089B-8 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
bs61089b-8-etched.step/bs61089b-8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bs61089b-8.step/bs61089b-8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Bencent datasheet (5 pp, sha256
fbc3e12d04d8b45d, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# BS61089B-8
**Bencent** · Thyristors (SCR)/Modules · SOP-8
BS61089B-8 from Bencent, in a SOP-8. 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 | K1 | passive | Cathode 1 (Tip) of the thyristor surge suppressor, connected to pin 8; repetitive peak off-state voltage -170 V with VGK=0. |
| 2 | G | input | Gate (programming) input that sets the protection voltage over the -20 V to -155 V range, with gate trigger current 5 mA max and repetitive peak gate-cathode voltage -167 V. |
| 3 | NC | unconnected | No connection. |
| 4 | K2 | passive | Cathode 2 (Ring) of the thyristor surge suppressor, connected to pin 5; repetitive peak off-state voltage -170 V with VGK=0. |
| 5 | K2 | passive | Cathode 2 (Ring) of the thyristor surge suppressor, connected to pin 4; non-repetitive peak on-state pulse current 40 A (5/320uS). |
| 6 | A | power_in | Anode (Ground) common reference of the suppressor, same net as pin 7. |
| 7 | A | power_in | Anode (Ground) common reference of the suppressor, same net as pin 6. |
| 8 | K1 | passive | Cathode 1 (Tip) of the thyristor surge suppressor, connected to pin 1; non-repetitive peak on-state pulse current 40 A (5/320uS). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bencent |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |
## 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 off-state voltage | VDRM | | | -170 | V | VGK=0 | 1 |
| Repetitive peak gate-cathode voltage | VGKRM | | | -167 | V | VKA=0 | 1 |
| Storage temperature range | Tstg | -40 | | 150 | ℃ | | 1 |
| Operating junction temperature | Tj | -40 | | 150 | ℃ | | 1 |
| Non-repetitive peak on-state pulse current | ITSP | | | 40 | A | 5/320us (ITU-TK.20/21/45, YD/T950, open-circuit voltage wave shape 10/700us) | 1 |
| Non-repetitive peak on-state current | ITSM | | | 6.5 | A | 60Hz, 0.1 s | 1 |
| Non-repetitive peak on-state current | ITSM | | | 3.6 | A | 60Hz, 1 s | 1 |
| Non-repetitive peak on-state current | ITSM | | | 2.2 | A | 60Hz, 5 s | 1 |
| Non-repetitive peak on-state current | ITSM | | | 0.9 | A | 60Hz, 300 s | 1 |
| Surge peak pulse current rating | IPP | | | 30 | A | Current waveform 10/1000us, voltage waveform 10/1000us | 3 |
| Storage temperature range | TS | -60 | | 150 | ℃ | | 3 |
| Forward voltage | VF | | | 3 | V | IF=5A, tw=200us | 2 |
| Peak forward recovery voltage | VFRM | | | 10 | V | 2/10us, IF=100A, Rs=50Ω, di/dt=80A/us | 2 |
| Off-state current | IDRM | | | -5 | uA | VDRM=-170V, VGK=0, Tj=25℃ | 2 |
| Switching voltage | VS | | | -112 | V | 2/10us, ITM=-100A, Rs=50Ω, di/dt=-80A/us, VGG=-100V | 2 |
| Holding current | IH | -150 | | | mA | IT=-1A, di/dt=1A/mS, VGG=-100V | 2 |
| Gate reverse current | IGAS | | | -5 | uA | VGG=VGK=-167V, VKA=0, Tj=25℃ | 2 |
| Gate trigger current | IGT | | | 5 | mA | IT=-3A, tp(g)≥20us, VGG=-100V | 2 |
| Gate trigger voltage | VGT | | | 2.5 | V | IT=-3A, tp(g)≥20us, VGG=-100V | 2 |
| Anode-cathode off-state capacitance | CAK | | 100 | | pF | F=1MHz, Vd=1V, IG=0, VD=-3V | 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 | Copper Alloy | | Lead Material Copper Alloy | 3 |
## CAD (KiCad official)
- Symbol: `BS61089B-8`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `bs61089b-8-etched.step` / `bs61089b-8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bs61089b-8.step` / `bs61089b-8.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Bencent datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603099287446437888) (5 pp, sha256 `fbc3e12d04d8b45d`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/bs61089b-8-datasheet.pdf)