# SMM02040C1823FB300

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

SMM02040C1823FB300 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 |
|---|---|---|---|---|---|---|---|
| Operating voltage Umax (AC RMS / DC) | Umax |  |  | 200 | V | AC RMS/DC, SMM0204 | 1 |
| Rated dissipation | P70 |  |  | 0.4 | W | P70 rating, 70 °C ambient; applies only while permissible film temperature is not exceeded | 1 |
| Permissible film temperature | ϑF max |  |  | 155 | °C | Maximum permissible film temperature | 1 |
| Operating temperature range |  | -55 |  | 155 | °C | Operating temperature range (see note 1 on datasheet) | 1 |
| Permissible voltage against ambient (insulation) | Uins |  |  | 300 | V | 1 min | 1 |
| Resistance tolerance (decoded from MPN code F) |  | -1 |  | 1 | % | Part-number tolerance code F = ± 1 % | 3 |
| Temperature coefficient (decoded from MPN code C) |  | -50 |  | 50 | ppm/K | Part-number TCR code C = ± 50 ppm/K | 3 |
| Max resistance change /ΔR/R/ after 1000 h, precision mode | /ΔR/R/ |  |  | 0.05 | % | P70, 1000 h, precision operation mode, resistance range 10 Ω to 1 MΩ | 2 |
| Max resistance change /ΔR/R/ after 8000 h, precision mode | /ΔR/R/ |  |  | 0.1 | % | P70, 8000 h, precision operation mode, resistance range 10 Ω to 1 MΩ | 2 |
| Max resistance change /ΔR/R/ after 225000 h, precision mode | /ΔR/R/ |  |  | 0.25 | % | P70, 225000 h, precision operation mode, resistance range 10 Ω to 1 MΩ | 2 |
| Max resistance change /ΔR/R/ after 1000 h, standard mode | /ΔR/R/ |  |  | 0.15 | % | P70, 1000 h, standard operation mode, resistance range 0.22 Ω to 10 MΩ | 2 |
| Max resistance change /ΔR/R/ after 8000 h, standard mode | /ΔR/R/ |  |  | 0.3 | % | P70, 8000 h, standard operation mode, resistance range 0.22 Ω to 10 MΩ | 2 |
| Max resistance change /ΔR/R/ after 225000 h, standard mode | /ΔR/R/ |  |  | 0.75 | % | P70, 225000 h, standard operation mode, resistance range 0.22 Ω to 10 MΩ | 2 |
| Max resistance change /ΔR/R/ after 1000 h, power mode | /ΔR/R/ |  |  | 0.25 | % | P70, 1000 h, power operation mode, resistance range 0.22 Ω to 10 MΩ | 2 |
| Max resistance change /ΔR/R/ after 8000 h, power mode | /ΔR/R/ |  |  | 0.5 | % | P70, 8000 h, power operation mode, resistance range 0.22 Ω to 10 MΩ | 2 |
| Endurance 70 °C 1000 h, precision mode ΔR | ΔR | -0.05 |  | 0.05 | % | ± (0.05 % R + 0.005 Ω); U ≤ Umax, 1.5 h on / 0.5 h off, 10 Ω to 1 MΩ column | 9 |
| Endurance 70 °C 8000 h, precision mode ΔR | ΔR | -0.1 |  | 0.1 | % | ± (0.1 % R + 0.005 Ω); U ≤ Umax, 1.5 h on / 0.5 h off, 10 Ω to 1 MΩ column | 9 |
| Endurance 70 °C 1000 h, standard mode ΔR | ΔR | -0.1 |  | 0.1 | % | ± (0.1 % R + 0.005 Ω); U ≤ Umax, 1.5 h on / 0.5 h off, 10 Ω to 1 MΩ column | 9 |
| Endurance 70 °C 8000 h, standard mode ΔR | ΔR | -0.2 |  | 0.2 | % | ± (0.2 % R + 0.005 Ω); U ≤ Umax, 1.5 h on / 0.5 h off, 10 Ω to 1 MΩ column | 9 |
| Endurance 70 °C 1000 h, power mode ΔR | ΔR | -0.25 |  | 0.25 | % | ± (0.25 % R + 0.01 Ω); U ≤ Umax, 1.5 h on / 0.5 h off; single value printed | 9 |
| Endurance 70 °C 8000 h, power mode ΔR | ΔR | -0.5 |  | 0.5 | % | ± (0.5 % R + 0.01 Ω); U ≤ Umax, 1.5 h on / 0.5 h off; single value printed | 9 |
| Endurance at 125 °C 1000 h ΔR | ΔR | -0.1 |  | 0.1 | % | ± (0.1 % R + 0.005 Ω); 10 Ω to 1 MΩ column of three printed values | 9 |
| Endurance at 155 °C 1000 h ΔR | ΔR | -0.2 |  | 0.2 | % | ± (0.2 % R + 0.005 Ω); 10 Ω to 1 MΩ column of three printed values | 9 |
| Cold -55 °C 2000 h ΔR | ΔR | -0.1 |  | 0.1 | % | ± (0.1 % R + 0.01 Ω); single value printed | 9 |
| Rapid temperature change LCT -55 °C / UCT 155 °C, 1000 cycles ΔR | ΔR | -0.5 |  | 0.5 | % | ± (0.5 % R + 0.01 Ω); 30 min each at LCT and UCT | 9 |
| Single pulse high voltage overload ΔR | ΔR | -0.15 |  | 0.15 | % | ± (0.15 % R + 0.01 Ω); U = 10 x Umax ≤ 2 x Umax, 10 μs/700 μs, 10 pulses; standard and power modes | 10 |
| Periodic electric overload ΔR, standard mode | ΔR | -0.15 |  | 0.15 | % | ± (0.15 % R + 0.01 Ω); U ≤ 2 x Umax, 0.1 s on / 2.5 s off, 1000 cycles | 10 |
| Periodic electric overload ΔR, power mode | ΔR | -0.3 |  | 0.3 | % | ± (0.3 % R + 0.01 Ω); U ≤ 2 x Umax, 0.1 s on / 2.5 s off, 1000 cycles | 10 |
| Electrostatic discharge ΔR (HBM) | ΔR | -0.5 |  | 0.5 | % | ± (0.5 % R + 0.05 Ω); SMM 0204 at 2 kV HBM | 10 |
| Substrate bending ΔR | ΔR | -0.05 |  | 0.05 | % | ± (0.05 % + 0.005 Ω); depth 2 mm, 3 times | 11 |

## CAD (KiCad official)

- Symbol: `SMM02040C1823FB300`
- 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590409307297910785) (13 pp, sha256 `bcae28612f231655`, retrieved 2026-10-13, 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](docs/smm02040c1823fb300-datasheet.pdf)