Temperature Derating Curve

125

Ambient Temperature /

°C

75

50

25

0

100

5

5

1

0

7

5

1

-

Pulse Withstanding

Chip Resistors

PWC Series

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

Thermal Performance Data

09. 09

Welwyn Components

ApplicationNote

PWCresistorsthemselvescanoperateatamaximumtemperatureof155°C.Forsolderedresistors,thejointtemperatureshouldnotexceed110°C.This

conditionismetwhenthestatedpowerlevelsat70°Candrecommendedpadandtraceareasareused.Allowanceshouldbemadeif

smaller areas of copper are used.

AfullApplicationNoteonthePWCSeriesisavailable.

Packaging

0805and1206resistorsaresuppliedon8mmcarriertapeand2010and2512resistorsaresuppliedon12mmcarriertape,allon7inchreelsasperIEC

286-3.

Ordering Procedure

This product has two valid part numbers:

Ordering Procedure

This product has two valid part numbers:

European (Welwyn) Part Number: PWC2512-2K0JI (2512, 2 kilohms ±5%, Pb-free)

P W C

2

5

1

2

-

2

K

0

J

I

1

2

3

4

5

6

USA (IRC) Part Number: PWC-PWC2512LF-2K00-J

(2512, 2 kilohms ±5%, Pb-free)

P W C

-

P W C

2

5

1

2

L

F

-

2

K 0

0

-

J

1

2

3

4

5

6

1

2

3

4

5

6

Type Size

Anti-Sulphur

Value

Tolerance Termination & Packing

PWC 0805 Omit for standard E24 = 3/4 characters D = ±0.5%

1206 AS = Anti-sulphur E96 = 3/4 characters

F = ±1%

0805, 1206,

2010

3000/reel

2010

R = ohms

J = ±5%

2512

K = kilohms

2512

1800/reel

M = megohms

All sizes

1000/reel

1

2

3

4

5

6

Family Model

Size

Termination

Value

Tolerance

Packing

PWC

PWC

0805

Omit for SnPb 3 digits + multiplier D = ±0.5%

ELT = Plastic tape

1206

LF = Pb-free

R = ohms for

values <100 ohms

F = ±1%

0805, 1206,

2010

3000/reel

2010

J = ±5%

2512

2512

1800/reel

I = RoHS & Standard,

PB = SnPb & Standard

T1 = RoHS &

Non-Standard

Ordering Procedure

This product has two valid part numbers:

European (Welwyn) Part Number: PWC2512-2K0JI (2512, 2 kilohms ±5%, Pb-free)

P W C

2

5

1

2

-

2

K

0

J

I

1

2

3

4

5

6

USA (IRC) Part Number: PWC-PWC2512LF-2K00-J

(2512, 2 kilohms ±5%, Pb-free)

P W C

-

P W C

2

5

1

2

L

F

-

2

K 0

0

-

J

1

2

3

4

5

6

1

2

3

4

5

6

Type Size

Anti-Sulphur

Value

Tolerance Termination & Packing

PWC 0805 Omit for standard E24 = 3/4 characters D = ±0.5%

1206 AS = Anti-sulphur E96 = 3/4 characters

F = ±1%

0805, 1206,

2010

3000/reel

2010

R = ohms

J = ±5%

2512

K = kilohms

2512

1800/reel

M = megohms

All sizes

1000/reel

1

2

3

4

5

6

Family Model

Size

Termination

Value

Tolerance

Packing

PWC

PWC

0805

Omit for SnPb 3 digits + multiplier D = ±0.5%

ELT = Plastic tape

1206

LF = Pb-free

R = ohms for

values <100 ohms

F = ±1%

0805, 1206,

2010

3000/reel

2010

J = ±5%

2512

2512

1800/reel

I = RoHS & Standard,

PB = SnPb & Standard

T1 = RoHS &

Non-Standard

Pulse Withstanding

Chip Resistors

PWC Series

Make Possible

07.14

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

www.ttelectronicsresistors.com