MELF

Resistors

WRM Series

www.bitechnologies.com www.irctt.com www.welwyn-tt.com

General Note

TT electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT electronics’ own data and is considered accurate at time of going to print.

© TT electronics plc

09.13

MELF

Resistors

WRM Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

01.11

Welwyn Components

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

Single Pulse

Maximum Pulse Load

Continuous Pulses

Maximum Pulse Load

Type

WRM

0204

C -

1K0

F

I

Size

TCR

Value (use IEC62 code)

Note: F or zero-ohm versions order WRM0204C-R00FI or WRM0207C-R00FI

Tolerance (use IEC62 code)

Packing

C 50ppm/ºC

T 10ppm/ºC

D 25ppm/ºC

V 5ppm/ºC

Y 15ppm/ºC

Z 100ppm/ºC

B 0.1%

D 0.5%

G 2%

C 0.25% F

1%

J

5%

0102

3000 / reel (7”)

I

Tape

0204

3000 / reel (7”)*

Standard

0207

1500 / reel (7”)

Ordering Procedure

Example: WRM0204 at 1 kilohm, 1% tolerance and 50ppm/ºC TCR on a reel of 3000 pieces -

* High precision parts may be supplied on 1000 piece reels – please enquire

Packaging

The WRM 0102 and 0204 resistors are supplied reeled on 8mm blister tape.

WRM 0207 resistors are supplied on 12mm blister tape.

Packaging complies with the requirements of IEC 286-3.

MELF

Resistors

WRM Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

01.11

Welwyn Components

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

Single Pulse

Maximum Pulse Load

Continuous Pulses

Maximum Pulse Load

Type

WRM

0204

C -

1K0

F

I

Size

TCR

Value (use IEC62 code)

Note: F or zero-ohm versions order WRM0204C-R00FI or WRM0207C-R00FI

Tolerance (use IEC62 code)

Packing

C 50ppm/ºC

T 10ppm/ºC

D 25ppm/ºC

V 5ppm/ºC

Y 15ppm/ºC

Z 100ppm/ºC

B 0.1%

D 0.5%

G 2%

C 0.25% F

1%

J

5%

0102

3000 / reel (7”)

I

Tape

0204

3000 / reel (7”)*

Standard

0207

1500 / reel (7”)

Ordering Procedure

Example: WRM0204 at 1 kilohm, 1% tolerance and 50ppm/ºC TCR on a reel of 3000 pieces -

* High precision parts may be supplied on 1000 piece reels – please enquire

Packaging

The WRM 0102 and 0204 resistors are supplied reeled on 8mm blister tape.

WRM 0207 resistors are supplied on 12mm blister tape.

Packaging complies with the requirements of IEC 286-3.

MELF

Resistors

WRM Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

01.11

Welwyn Components

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

Single Pulse

Maximum Pulse Load

Continuous Pulses

Maximum Pulse Load

Type

WRM

0204

C -

1K0

F

I

Size

TCR

Value (use IEC62 code)

Note: F or zero-ohm versions order WRM0204C-R00FI or WRM0207C-R00FI

Tolerance (use IEC62 code)

Packing

C 50ppm/ºC

T 10ppm/ºC

D 25ppm/ºC

V 5ppm/ºC

Y 15ppm/ºC

Z 100ppm/ºC

B 0.1%

D 0.5%

G 2%

C 0.25% F

1%

J

5%

0102

3000 / reel (7”)

I

Tape

0204

3000 / reel (7”)*

Standard

0207

1500 / reel (7”)

Ordering Procedure

Example: WRM0204 at 1 kilohm, 1% tolerance and 50ppm/ºC TCR on a reel of 3000 pieces -

* High precision parts may be supplied on 1000 piece reels – please enquire

Packaging

The WRM 0102 and 0204 resistors are supplied reeled on 8mm blister tape.

WRM 0207 resistors are supplied on 12mm blister tape.

Packaging complies with the requirements of IEC 286-3.

MELF

Resistors

WRM Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

01.11

Welwyn Components

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

100

10

1

0,1

10 µs

100 µs

1 ms

10 ms

100 ms

1 s

10 s

WRM 0102

WRM 0204

WRM 0207

W

Single Pulse

Maximum Pulse Load

Continuous Pulses

Maximum Pulse Load

Type

WRM

0204

C -

1K0

F

I

Size

TCR

Value (use IEC62 code)

Note: F or zero-ohm versions order WRM0204C-R00FI or WRM0207C-R00FI

Tolerance (use IEC62 code)

Packing

C 50ppm/ºC

T 10ppm/ºC

D 25ppm/ºC

V 5ppm/ºC

Y 15ppm/ºC

Z 100ppm/ºC

B 0.1%

D 0.5%

G 2%

C 0.25% F

1%

J

5%

0102

3000 / reel (7”)

I

Tape

0204

3000 / reel (7”)*

Standard

0207

1500 / reel (7”)

Ordering Procedure

Example: WRM0204 at 1 kilohm, 1% tolerance and 50ppm/ºC TCR on a reel of 3000 pieces -

* High precision parts may be supplied on 1000 piece reels – please enquire

Packaging

The WRM 0102 and 0204 resistors are supplied reeled on 8mm blister tape.

WRM 0207 resistors are supplied on 12mm blister tape.

Packaging complies with the requirements of IEC 286-3.