Logo

Vishay LED series – Ultra-High-Precision Resistors for Lighting

Vishay Precision Group (VPG) has introduced two new ultra-high-precision resistors to its Vishay Foil Resistors (VFR) product line. Bulk Metal® Z-Foil current sensing resistors are designed to improve LED brightness and efficiency in portable battery-powered applications.

  • High Power rating up to 8W
  • Ultra Low ohmic resistance value
  • Very low TCR down to 0.005ppm/°C
  • High Stability
  • Available in 2 different case size: TO-221 and 2516
LED series – Ultra-High-Precision Resistors for Lighting

Product Description

Vishay Precision Group (VPG) has introduced two new ultra-high-precision resistors to its Vishay Foil Resistors (VFR) product line. Bulk Metal® Z-Foil current sensing resistors are designed to improve LED brightness and efficiency in portable battery-powered applications.

Screen brightness is a very important function In portable devices’ LED-backlit LCD displays and it is controlled via an LED panel mounted on the rear of the LCD, which boosts the input voltage connected to the panel.

These devices need stable and precise current resistors with low thermal EMF and low absolute TCR to avoid brightness flickering and to control the stability of the LED output voltage.

The LED1625 and LED221 provide low TCR of 0.05 ppm/°C nominal (0°C to +60°C) and 0.2 ppm/°C nominal (–55°C to +125°C,+25°C ref.), load-life stability of ±0.005%, and tight tolerances to ±0.01%. The LED1625 also offers a 1 W power rating and a resistance range from 0.3 Ω to 10 Ω, while the LED221 features power ratings to 8 W and a resistance range from 0.5 Ω to 500 Ω. Any conceivable value within the devices' resistance ranges, to six digits, is available with no additional cost or lead time effect.

The resistors offer PCR (or ΔR due to self heating) of 5 ppm at rated power.
Featuring a non-inductive (< 0.08 μH), non-capacitive design, the LED1625 and LED221 offer a rise time of 1 ns with effectively no ringing, voltage coefficient of < 0.1 ppm/V, current noise of 0.010 μVRMS/V of applied voltage (< –40 dB), and thermal EMF of < 0.05 μV/°C. They withstand ESD spikes to at least 25 kV and are available with lead (Pb)-free and tin/lead alloy terminal finishes. The LED221 is also available with a solderable heatsink tab.

Product Series

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

  Manufacturer Part No Order Code Manufacturer / Description
Availability Price For
Price
Quantity
Resistance Resistance Tolerance Power Rating Resistor Case / Package Resistor Technology Resistor Type Product Range Temperature Coefficient Voltage Rating Product Length Product Width Operating Temperature Min Operating Temperature Max Qualification
Y201910R0000E9W
Y201910R0000E9W - SMD Chip Resistor, 10 ohm, ± 0.2%, 1 W, 2516 Wide [6440 Metric], Metal Foil, Precision

2454789

SMD Chip Resistor, 10 ohm, ± 0.2%, 1 W, 2516 Wide [6440 Metric], Metal Foil, Precision

VPG FOIL RESISTORS

You previously purchased this product. View in Order History

Available for back order

+ Check Stock & Lead Times

More stock available week commencing 19/10/26 Contact me when back in stock

Each

1+ £26.73 £32.08 3+ £21.59 £25.91 5+ £20.46 £24.55 10+ £19.33 £23.20 20+ £17.33 £20.80 50+ £15.80 £18.96 More Pricing...

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
10ohm ± 0.2% 1W 2516 Wide [6440 Metric] Metal Foil Precision LED1625 Series ± 3ppm/°C 300V 6.35mm 4.06mm -55°C 150°C -
Y20192R00000E9W
Y20192R00000E9W - SMD Chip Resistor, 2 ohm, ± 0.2%, 1 W, 2516 Wide [6440 Metric], Metal Foil, Precision

2454790

SMD Chip Resistor, 2 ohm, ± 0.2%, 1 W, 2516 Wide [6440 Metric], Metal Foil, Precision

VPG FOIL RESISTORS

You previously purchased this product. View in Order History

Available for back order

+ Check Stock & Lead Times

More stock available week commencing 19/10/26 Contact me when back in stock

Each

1+ £26.73 £32.08 3+ £21.59 £25.91 5+ £20.46 £24.55 10+ £19.33 £23.20 20+ £17.33 £20.80 50+ £15.80 £18.96 More Pricing...

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
2ohm ± 0.2% 1W 2516 Wide [6440 Metric] Metal Foil Precision LED1625 Series ± 3ppm/°C 300V 6.35mm 4.06mm -55°C 150°C -
Y20205R00000Q9L
Y20205R00000Q9L - Through Hole Resistor, 5 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

2454792

Through Hole Resistor, 5 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

VPG FOIL RESISTORS

You previously purchased this product. View in Order History

Available for back order

+ Check Stock & Lead Times
  • 25 more will be available week commencing 11/02/26
  • More stock available week commencing 19/10/26 Contact me when back in stock

    Each

    1+ £55.49 £66.59 3+ £49.68 £59.62 5+ £47.11 £56.53 10+ £44.54 £53.45 20+ £40.62 £48.74 50+ £37.89 £45.47 More Pricing...

    Restricted Item

    Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

    Add
    Min: 1 Mult: 1
    5ohm ± 0.02% 8W TO-221 Metal Foil Ultra Precision LED221 Series ± 2ppm/°C 300V 10.16mm 3.81mm -55°C 150°C -
    Y20201R00000Q9L
    Y20201R00000Q9L - Through Hole Resistor, 1 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

    2454794

    Through Hole Resistor, 1 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

    VPG FOIL RESISTORS

    You previously purchased this product. View in Order History

    24 in stock + Check Stock & Lead Times

    24 in stock for next day delivery (UK stock)

  • 25 more will be available week commencing 28/01/26
  • More stock available week commencing 19/10/26

    Each

    1+ £57.72 £69.26 3+ £51.68 £62.02 5+ £49.01 £58.81 10+ £46.33 £55.60 20+ £42.25 £50.70 50+ £39.42 £47.30 More Pricing...

    Restricted Item

    Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

    Add
    Min: 1 Mult: 1
    1ohm ± 0.02% 8W TO-221 Metal Foil Ultra Precision LED221 Series ± 2ppm/°C 300V 10.16mm 3.81mm -55°C 150°C -
    Y202010R0000T9L
    Y202010R0000T9L - Through Hole Resistor, 10 ohm, LED221 Series, 8 W, ± 0.01%, TO-221, 300 V

    2454795

    Through Hole Resistor, 10 ohm, LED221 Series, 8 W, ± 0.01%, TO-221, 300 V

    VPG FOIL RESISTORS

    You previously purchased this product. View in Order History

    No Longer Stocked

    Each

    null
    Restricted Item
    10ohm ± 0.01% 8W TO-221 Metal Foil Ultra Precision LED221 Series ± 2ppm/°C 300V 10.16mm 3.81mm -55°C 150°C -
    Y2020100R000T9L
    Y2020100R000T9L - Through Hole Resistor, 100 ohm, LED221 Series, 8 W, ± 0.01%, TO-221, 300 V

    2454796

    Through Hole Resistor, 100 ohm, LED221 Series, 8 W, ± 0.01%, TO-221, 300 V

    VPG FOIL RESISTORS

    You previously purchased this product. View in Order History

    35 in stock + Check Stock & Lead Times

    35 in stock for next day delivery (UK stock)

    More stock available week commencing 19/10/26

    Each

    1+ £60.29 £72.35 3+ £54.30 £65.16 5+ £48.61 £58.33 10+ £43.58 £52.30 20+ £39.75 £47.70 50+ £37.08 £44.50 More Pricing...

    Restricted Item

    Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

    Add
    Min: 1 Mult: 1
    100ohm ± 0.01% 8W TO-221 Metal Foil Ultra Precision LED221 Series ± 2ppm/°C 300V 10.16mm 3.81mm -55°C 150°C -
    Y20202R00000Q9L
    Y20202R00000Q9L - Through Hole Resistor, 2 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

    2454797

    Through Hole Resistor, 2 ohm, LED221 Series, 8 W, ± 0.02%, TO-221, 300 V

    VPG FOIL RESISTORS

    You previously purchased this product. View in Order History

    22 in stock + Check Stock & Lead Times

    22 in stock for next day delivery (UK stock)

    More stock available week commencing 19/10/26

    Each

    1+ £56.75 £68.10 3+ £50.81 £60.97 5+ £48.18 £57.82 10+ £45.55 £54.66 20+ £41.54 £49.85 50+ £38.75 £46.50 More Pricing...

    Restricted Item

    Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

    Add
    Min: 1 Mult: 1
    2ohm ± 0.02% 8W TO-221 Metal Foil Ultra Precision LED221 Series ± 2ppm/°C 300V 10.16mm 3.81mm -55°C 150°C -