Megasan Elektronik-Chip Resistor

Chip Resistor - Surface Mount

The “Chip Resistor – Surface Mount ” tittle has a huge collection of resistors from industry-leading manufacturers such as “ Bourns Inc ”, “Guangdong Fenghua Advanced Technology”, “Hitano Enterprise Corp.”, “Kome”, “Panasonic Electronic Components”, “Royal Electronic Factory Co.,Ltd.” , “Viking Tech Corporation” , “Vishay Dale” and “Yageo”.

- MANUFACTURER Part No
- PRICE
- Satın Al
- Araçlar
- STOCK
- Manufacturer
- Series
- Part Status
- Resistance
- Tolerance
- Power (Watts)
- Temperature Coefficient
- Operating Temperature
- Failure Rate
- Composition
- Number of Terminations
- Height - Seated (Max)
- Package / Case
- Supplier Device Package
- Size / Dimension
- Packaging
- Features
- Üretici Part No
  
  WR06X474 JTL
  
  R-CHIP 470K 0603J ±5% 1/10W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  470 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/10W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.024" (0.60mm)
- Package / Case
  
  0603 (1608 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR06X330 JTL
  
  R-CHIP 33R 0603J ±5% 1/10W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  33 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/10W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.024" (0.60mm)
- Package / Case
  
  0603 (1608 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X103 JTL
  
  R-CHIP 10K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  10 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR06X471 JTL
  
  R-CHIP 470R 0603J ±5% 1/10W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  470 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/10W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.024" (0.60mm)
- Package / Case
  
  0603 (1608 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X223 JTL
  
  R-CHIP 22K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  22 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR12X222 JTL
  
  R-CHIP 2.2K 1206J ±5% 1/4W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  2.2 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/4W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.030" (0.75mm)
- Package / Case
  
  1206 (3216 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR25X000 PTL
  
  R-CHIP 0R 2512J ±5% 1W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  0 Ohm
- Tolerance
  
  ±5%
- Power (Watts)
  
  1W
- Temperature Coefficient
  
  ±200ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.028" (0.70mm)
- Package / Case
  
  2512 (6432 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X334 JTL
  
  R-CHIP 330K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  330 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR06X561 JTL
  
  R-CHIP 560R 0603J ±5% 1/10W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  560 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/10W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.024" (0.60mm)
- Package / Case
  
  0603 (1608 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X331 JTL
  
  R-CHIP 330R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  330 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X221 JTL
  
  R-CHIP 220R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  220 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X390 JTL
  
  R-CHIP 39R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  39 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X151 JTL
  
  R-CHIP 150R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  150 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X183 JTL
  
  R-CHIP 18K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  18 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X155 JTL
  
  R-CHIP 1.5M 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  1.5 MOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X620 JTL
  
  R-CHIP 62R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  62 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR12X201 JTL
  
  R-CHIP 200R 1206J ±5% 1/4W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  200 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/4W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.030" (0.75mm)
- Package / Case
  
  1206 (3216 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X272 JTL
  
  R-CHIP 2.7K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  2.7 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X561 JTL
  
  R-CHIP 560R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  560 Ohms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
  
  -
- Üretici Part No
  
  WR08X273 JTL
  
  R-CHIP 27K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  27 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR08X184 JTL
  
  R-CHIP 180K 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  180 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  MR06X124 JTL
  
  R-CHIP 120K 0603J 5% 1/8W T&R Walsin
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  120 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.024" (0.60mm)
- Package / Case
  
  0603 (1608 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
  
  -
- Üretici Part No
  
  WR08X1R0 JTL
  
  R-CHIP 1R 0805J ±5% 1/8W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  1 Ohm
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/8W
- Temperature Coefficient
  
  -200/ +400ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.026" (0.65mm)
- Package / Case
  
  0805 (2012 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR12X334 JGL
  
  R-CHIP 330K 1206J ±5% 1/4W T&R Walsin
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  330 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/4W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.030" (0.75mm)
- Package / Case
  
  1206 (3216 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features
- Üretici Part No
  
  WR12X472 JTL
  
  R-CHIP 4.7K 1206J ±5% 1/4W T&R WALSIN
- Satın Al
- Araçlar
  - Not RoHS
  - Belge İndir
- Stock
  
  0 Adet Stokta
- Manufacturer
  
  Walsin Technology Corporation
- Series
- Part Status
- Resistance
  
  4.7 kOhms
- Tolerance
  
  ±5%
- Power (Watts)
  
  1/4W
- Temperature Coefficient
  
  ±100ppm/°C
- Operating Temperature
  
  -55°C ~ 155°C
- Failure Rate
  
  -
- Composition
  
  Thick Film
- Number of Terminations
  
  2
- Height - Seated (Max)
  
  0.030" (0.75mm)
- Package / Case
  
  1206 (3216 Metric)
- Supplier Device Package
- Size / Dimension
  
  -
- Packaging
  
  Tape & Reel (TR)
- Features

Hakkımızda

Chip Resistor - Surface Mount

Filtre Listesi

Manufacturer

Series

Resistance

Power (Watts)

Temperature Coefficient

Operating Temperature

Composition

Height - Seated (Max)

Package / Case

Packaging

Features

Stock Status:

RoHS:

Üretici Part No

WR06X474 JTL

Satın Al

Araçlar

Stock

Manufacturer

Series

Part Status

Resistance

Tolerance

Power (Watts)

Temperature Coefficient

Operating Temperature

Failure Rate

Composition

Number of Terminations

Height - Seated (Max)

Package / Case

Supplier Device Package

Size / Dimension

Packaging

Features

Üretici Part No

WR06X330 JTL

Satın Al

Araçlar

Stock

Manufacturer

Series

Part Status

Resistance

Tolerance

Power (Watts)

Temperature Coefficient

Operating Temperature

Failure Rate

Composition

Number of Terminations

Height - Seated (Max)

Package / Case

Supplier Device Package

Size / Dimension

Packaging

Features

Üretici Part No

WR08X103 JTL

Satın Al

Araçlar

Stock

Manufacturer

Series

Part Status

Resistance

Tolerance

Power (Watts)

Temperature Coefficient

Operating Temperature

Failure Rate

Composition

Number of Terminations

Height - Seated (Max)

Package / Case

Supplier Device Package

Size / Dimension