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Contents

README

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TISP61089QBDR-S

BOURNS · ESD Protection Devices · SOIC-8

TISP61089QBDR-S from BOURNS, in a SOIC-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 of thyristor/diode element 1, connected to a protected SLIC line terminal (tip/ring side).
2 G1,G2 input Common gate for elements 1 and 2, connected to the SLIC negative supply (VGG) via the 100 nF decoupling capacitor to set the protection voltage (-20 V to -155 V programming range).
3 G3,G4 input Common gate for elements 3 and 4, connected to the SLIC negative supply (VGG) via the 100 nF decoupling capacitor to set the protection voltage (-20 V to -155 V programming range).
4 K3 passive Cathode of thyristor/diode element 3, connected to a protected SLIC line terminal.
5 K4 passive Cathode of thyristor/diode element 4, connected to a protected SLIC line terminal.
6 A passive Common anode of all four elements, connected to ground (0 V); internally joined to pin 7.
7 A passive Common anode of all four elements, connected to ground (0 V); internally joined to pin 6.
8 K2 passive Cathode of thyristor/diode element 2, connected to a protected SLIC line terminal.

Key specifications

Parameter Value
Manufacturer BOURNS
Package SOIC-8
Category Circuit Protection
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 IG = 0, -40 °C ≤ TJ ≤ 85 °C 2
Repetitive peak gate-cathode voltage VGKRM -167 V VKA = 0, -40 °C ≤ TJ ≤ 85 °C 2
Non-repetitive peak on-state pulse current 10/1000 µs ITSP 30 A 10/1000 µs (Bellcore GR-1089-CORE) 2
Non-repetitive peak on-state pulse current 5/320 µs ITSP 40 A 5/320 (ITU-T K.20/21/45, YD/T-950, open circuit voltage waveshape 10/700) 2
Non-repetitive peak on-state pulse current 2/10 µs ITSP 120 A 2/10 (Bellcore GR-1089-CORE) 2
Non-repetitive peak on-state current, 60 Hz ITSM 0.5 A 60 Hz, 900 s 2
Non-repetitive peak gate current IGSM 40 A 2/10 µs pulse, cathodes commoned 2
Junction temperature TJ -40 150 °C 2
Storage temperature range Tstg -40 150 °C 2
Gate decoupling capacitor CG 100 nF 2
Series resistor for first-level and second-level surge survival RS 40 Ω 2
Series resistor for first-level surge survival RS 25 Ω 2
Off-state current ID -5 µA VD = VDRM, VGK = 0 2
Breakover voltage V(BO) -64 V 10/700 µs, IT = -40 A, RS = 55 Ω, VGG = -48 V, CG = 100nF 2
Forward voltage VF 3 V IF = 5 A, tw = 200 µs 2
Peak forward recovery voltage VFRM 12 V 10/700 µs, IF = 40 A, RS = 55 Ω, VGG = -48 V, CG = 100nF 2
Holding current IH -150 mA IT = -1 A, di/dt = 1 A/ms, VGG = -100 V 2
Gate reverse current IGAS -5 µA VGG = VGK = VGKRM, VKA = 0 2
Gate trigger current IGT 5 mA IT = 3 A, tp(g) ≥ 20 µs, VGG = -100 V 2
Gate trigger voltage VGT 2.5 V IT = 3 A, tp(g) ≥ 20 µs, VGG = -100 V 2
Anode-cathode off-state capacitance CAK 100 pF f = 1 MHz, Vd = 1 V, IG = 0, VD = -3V 2
Anode-cathode off-state capacitance CAK 50 pF f = 1 MHz, Vd = 1 V, IG = 0, VD = -48V 2
Junction to free air thermal resistance RθJA 160 °C/W Ptot = 0.8 W, TA = 25 °C, 5 cm2, FR4 PCB 3

CAD (KiCad official)

  • Symbol: TISP61089QBDR-S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tisp61089qbdr-s-etched.step / tisp61089qbdr-s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tisp61089qbdr-s.step / tisp61089qbdr-s.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BOURNS datasheet (5 pp, sha256 342e7f5717b241f3, retrieved 2026-10-23, 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