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Contents

README

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1.5SMB36A

Littelfuse · TVS · DO-214AA(SMBJ)

1.5SMB36A from Littelfuse, in a DO-214AA(SMBJ). 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 Cathode passive Cathode terminal of the unidirectional 1.5SMB36A TVS, marked by the cathode band; VR 30.8V standoff, VBR 34.2-37.8V at 1mA, VC 49.9V at 30.5A (10/1000µs).
2 Anode passive Anode terminal of the unidirectional 1.5SMB36A TVS; 1500W peak pulse power at 10/1000µs, VF max 5.0V at 50A.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-214AA(SMBJ)
Category TVS/Fuse/Board Level Protection
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
Reverse Stand-off Voltage VR 30.8 V 2
Breakdown Voltage VBR 34.2 37.8 V @ IT = 1 mA 2
Maximum Clamping Voltage (10/1000μs) VC 49.9 V @ Ipp 30.5 A (10/1000μs) 2
Maximum Peak Pulse Current (10/1000μs) Ipp 30.5 A 10/1000μs 2
Maximum Clamping Voltage (8/20μs) VC 64.5 V @ Ipp 167.8 A (8/20μs) 2
Maximum Peak Pulse Current (8/20μs) Ipp 167.8 A 8/20μs 2
Maximum Reverse Leakage IR 1 µA @ VR 2
Maximum Temperature coefficient of VBR αT 0.096 %/C 2
Peak Pulse Power Dissipation PPPM 1500 W 10/1000μs waveform, TA=25°C 1
Power Dissipation on Infinite Heat Sink PD 5 W TL=50°C 1
Peak Forward Surge Current IFSM 120 A 8.3ms single half sine wave, unidirectional only 1
Maximum Instantaneous Forward Voltage VF 5 V at 50A, unidirectional only 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 175 °C 1
Typical Thermal Resistance Junction to Lead RθJL 20 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 100 °C/W 1
VBR Temperature Coefficient (typical) αT 0.1 % VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)) 1
VBR Voltage Tolerance -5 5 % A suffix: 5% VBR voltage tolerance 5

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 • Matte tin lead-free Plated • Halogen free and RoHS 1

CAD (KiCad official)

  • Symbol: 1.5SMB36A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
  • 3D model files: 1-5smb36a-etched.step / 1-5smb36a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1-5smb36a.step / 1-5smb36a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 edddb435792266f3, 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