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Contents

README

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SMM02040D1004DB300

Vishay Intertech · Chip Resistor - Surface Mount · MELF-0204

SMM02040D1004DB300 from Vishay Intertech, in a MELF-0204. 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 1 passive Terminal 1 of an unpolarised resistor; either orientation.
2 2 passive Terminal 2 of an unpolarised resistor; either orientation.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package MELF-0204
Category Resistors
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
Nominal resistance (decoded from MPN code 1004) R 1 MΩ 2
Resistance tolerance (MPN code D) -0.5 0.5 % 2
Temperature coefficient (MPN code D) TCR -25 25 ppm/K At (20 / -55 / 20) °C and (20 / 125 / 20) °C 9
Operating voltage Umax (AC RMS/DC) Umax 200 V AC RMS / DC 1
Rated dissipation P70 P70 0.4 W Power operation mode; ambient 70 °C 1
Operating temperature range -55 155 °C Power operation mode 1
Permissible film temperature F max F max 155 °C Power operation mode 1
Permissible voltage against ambient (insulation) Uins Uins 300 V 1 min 1
Max resistance change /ΔR/R/ after 1000 h at P70 /ΔR/R/ 0.25 % Power operation mode; P70; R 0.22 Ω to 10 MΩ; 1000 h 2
Max resistance change /ΔR/R/ after 8000 h at P70 /ΔR/R/ 0.5 % Power operation mode; P70; R 0.22 Ω to 10 MΩ; 8000 h 2
Endurance at 70 °C permissible change, 1000 h ΔR -0.25 0.25 % R Power operation mode; U = Umax; 1.5 h on / 0.5 h off; 70 °C; 1000 h; permissible change ±(0.25 % R + 0.01 Ω) as printed 9
Endurance at 70 °C permissible change, 8000 h ΔR -0.5 0.5 % R Power operation mode; U = Umax; 1.5 h on / 0.5 h off; 70 °C; 8000 h; permissible change ±(0.5 % R + 0.01 Ω) as printed 9

CAD (KiCad official)

  • Symbol: SMM02040D1004DB300
  • Footprint: Resistor_SMD:R_MiniMELF_MMA-0204
  • 3D model: MELF-0204 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Vishay Intertech datasheet (13 pp, sha256 4361e72873d00a5e, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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