7286-R5K-L.25 HELIPOT Precision Wire Wound Resistor

Review HELIPOT Precision Wire Wound Variable Resistor

The Helipot 7286-R5K-L.25 is a high-precision, wire-wound resistor designed for applications where accurate and stable resistance values are essential. This resistor is manufactured by Helipot, a leading supplier of precision resistors with a reputation for excellence in the industry.

The 7286-R5K-L.25 resistor features a tolerance class of /- 0.05%, which makes it one of the most accurate resistors in its class. Its resistance value is 25 ohms, making it suitable for various electronic circuits that require a stable and precise 25 ohm resistance. The resistor is designed with a power rating of 1 watt, providing sufficient power handling capacity for most low to medium power applications.

The resistor's construction consists of a high-quality, chromium-nickel alloy wire wound on a ceramic substrate. The wire is covered with a heat-shrinkable coating for added protection and insulation. The resistor is also RoHS compliant, ensuring that it meets the latest environmental regulations.

The Helipot 7286-R5K-L.25 resistor is characterized by its high stability, low TCR (Temperature Coefficient of Resistance), and excellent repeatability. Its TCR value is typically specified at 25 ppm/ C, which is much lower than that of standard resistors, making it an ideal choice for temperature-sensitive applications. The resistor also exhibits excellent stability over time and temperature, ensuring that its resistance value remains consistent even under varying conditions.

The resistor's terminations are made of high-quality, tin-plated copper, which provides excellent electrical conductivity and ensures a secure connection. The resistor is available in various package styles, including the E24 series, which allows users to select resistors with values from a wide range of resistance values.

In summary, the Helipot 7286-R5K-L.25 is a high-precision, wire-wound resistor with a tolerance class of /- 0.05%, a resistance value of 25 ohms, and a power rating of 1 watt. Its low TCR, high stability, and excellent repeatability make it an ideal choice for temperature-sensitive applications where precise and stable resistance values are required.

Helipot 7286-R5K-L.25 is a precision wire-wound resistor manufactured by Vishay Precision Group. These resistors are widely used in various electronic applications due to their high precision, stability, and low temperature coefficient. Let's discuss some pros and cons of buying a Helipot 7286-R5K-L.25 resistor.

1. High Precision: The resistor offers a high degree of accuracy with a tolerance range as low as 0.01%. This makes it suitable for applications where precise resistance values are crucial.

2. Stability: Helipot resistors have a low temperature coefficient, which means their resistance value remains relatively constant over a wide temperature range. This is essential in applications where temperature stability is important.

3. Low TCR: The TCR (Temperature Coefficient of Resistance) for this resistor is typically low, which ensures minimal changes in resistance with temperature fluctuations.

4. Robust Design: The wire-wound design of these resistors provides excellent power handling capabilities and stability, making them ideal for high-power applications.

5. RoHS Compliant: The resistor is RoHS compliant, which means it does not contain any hazardous substances, making it environmentally friendly.

1. Size and Cost: Precision wire-wound resistors like Helipot 7286-R5K-L.25 are larger and more expensive than their standard counterparts due to their construction and precision.

2. Mounting: The resistor's size and design may pose challenges in mounting and installing it into smaller PCBs.

3. Fragility: The wire-wound design makes these resistors more fragile compared to other types, increasing the chances of damage during handling or installation.

The Helipot 7286-R5K-L.25 is an excellent choice for applications that require high precision, stability, and low temperature coefficient. Its robust design, power handling capabilities, and RoHS compliance are additional advantages. However, its larger size, cost, mounting challenges, and fragility may be considered disadvantages.

If the application can accommodate the larger size and cost, and precision and stability are crucial factors, then the Helipot 7286-R5K-L.25 is a recommended option. However, if size, cost, or ease of installation are more critical factors, alternative resistor types, such as thick-film or thin-film resistors, may be more suitable.

Details:

Resistance tolerance per section in percent -3.0 to 3.0 single. Electrical resistance per section 5.000 kilos single. Temp coefficient of resistance wire per section in ppm deg Celsius -20.0 to 20.0 single.

specifications passivecompos:

• brand: Helipot
• mpn: 7286-r5k-l.25
• part type: Wire Resistor

shipping passivecompos:

• type: calculated
• class: standard
• transit: 5-12 days
• service: usps ground advantage
• carrier: usps

offer passivecompos:

• options: ship-to-home
• sold #: 19
• in stock #: 3
• started: october 22, 2025
• prices: $19.95–$78.95
• item condition:
  • New – Open box
  • Used
• availability: in stock

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

seller passivecompos:

• rating: 98.9%
• city: stanton, california
• # reviews: 14998

returns passivecompos:

• paid by: seller
• time: 30 days
• method: money back
• policy: returns accepted

payments passivecompos:

• wallet: google-pay
• other
• credit card: discover