RARA SMF Series

Product Features

  • High-precision metal film surface-mount resistors
  • Power ratings available: 2W, 3W and 5W
  • Resistance range: 10Ω to 2MΩ
  • Tight tolerances: ±1% and ±5%
  • Temperature coefficient: 200 ppm/°C
  • Flameproof UL94V0 moulded package for added safety

The SMF Series metal film resistors offer exceptional precision and stability, making them ideal for applications that require reliable, low-noise performance in lower power settings. With power ratings of 2W and 3W and a broad resistance range from 10Ω to 2MΩ, the SMF resistors cater to a diverse array of precision circuits. Featuring tight tolerances as low as ±1% and a stable temperature coefficient of ±200 ppm/°C, they maintain accuracy across varying temperatures, which is essential for sensitive electronic applications. The flameproof UL94V0 moulded package enhances safety, ensuring the resistor withstands heat and environmental stresses. These resistors are also compatible with automatic surface mounting, optimizing production processes and supporting efficient assembly.

Key Features of SMF Series:

  • High-precision metal film resistor design
  • Power ratings available: 2W, 3W and 5W
  • Extensive resistance range: 10Ω to 2MΩ
  • Tight tolerances: ±1% and ±5%
  • Stable temperature coefficient: 200 ppm/°C
  • Flameproof UL94V0 moulded package for improved safety
  • Supports automatic surface mounting for efficient assembly

Application Industries and Use Cases for SMF Series:

  • Medical Devices: Vital for sensitive diagnostic and monitoring systems where precision is paramount
  • Instrumentation: Provides reliable performance in precision measurement devices
  • Audio Equipment: Reduces noise and enhances clarity in high-fidelity audio applications
  • Telecommunications: Maintains stable resistance for signal processing in networking equipment
  • Consumer Electronics: Precision control in sensitive circuits for electronic appliances

 

RARA Electronics Corporation is a renowned manufacturer specialising in industrial and braking resistors. They provide high-quality, durable resistors for various industrial applications, including power generation, transport, and renewable energy sectors, ensuring reliability and efficiency in demanding operational environments. Their products are known for performance and customisation options. Please visit www.raraohm.com for more information.

Specifications

Product Type

Series / Model

Power Rating

, ,

Resistance Value

Tolerance

,

Temperature Coefficient

Temperature Range (°C)

-55 to +200°C

Ordering Info

Below is the model number configuration for the SMF series from .
Ordering example: SMW2W 2000F
SMFXW XXXXX

Model (SMFXW)

SMF2W
SMF3W
SMF5W

Resistance Range (XXXX)

Resistance values are expressed with 3 digits to denote the desired value and a 4th digit to denote the number of proceeding zeros. For example, 1kΩ = 1001

Tolerance ()

Product Variations

SKUPower RatingResistance ValueTolerance 
SMF2W XXXXF2WCustom (10Ω – 2MΩ)±1%

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SMF3W XXXXF3WCustom (10Ω – 2MΩ)±1%

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SMF5W XXXXF5WCustom (10Ω – 2MΩ)±1%

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SMF2W XXXXJ2WCustom (10Ω – 2MΩ)±5%

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SMF3W XXXXJ3WCustom (10Ω – 2MΩ)±5%

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SMF5W XXXXJ5WCustom (10Ω – 2MΩ)±5%

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Resources

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RARA SMF Series

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