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PWC251278K7FI

Description
RESISTOR, METAL GLAZE/THICK FILM, 2W, 1%, 100ppm, 78700ohm, SURFACE MOUNT, 2512, CHIP
CategoryPassive components    The resistor   
File Size591KB,4 Pages
ManufacturerTT Electronics plc
Websitehttp://www.ttelectronics.com/
Environmental Compliance  
Download Datasheet Parametric View All

PWC251278K7FI Overview

RESISTOR, METAL GLAZE/THICK FILM, 2W, 1%, 100ppm, 78700ohm, SURFACE MOUNT, 2512, CHIP

PWC251278K7FI Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1242066732
package instructionSMT, 2512
Reach Compliance Codecompliant
Country Of OriginUK
YTEOL6.85
structureRECTANGULAR PACKAGE
JESD-609 codee3
Installation featuresSURFACE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package height0.8 mm
Package length6.5 mm
Package formSMT
Package width3.2 mm
method of packingTR, 7 INCH
Rated power dissipation(P)2 W
Rated temperature70 °C
resistance78700 Ω
Resistor typeFIXED RESISTOR
size code2512
surface mountYES
technologyMETAL GLAZE/THICK FILM
Temperature Coefficient100 ppm/°C
Terminal surfaceMATTE TIN OVER NICKEL
Terminal shapeWRAPAROUND
Tolerance1%
Operating Voltage500 V
Resistors
PWC Series
Pulse Withstanding
Pulse Withstanding Chip Resistors
Chip Resistors
Excellent pulse withstand performance
PWC Series
Improved working voltage
Excellent pulse withstand performance
Improved power rating
Improved working voltage
Custom designs available
Improved power rating
Anti-sulphur version available
Standard chip sizes (0805 to 2512)
Custom designs available
Welwyn Components
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Size
Power @70°C
Resistance range
Tolerance
LEV
TCR
Operating temperature
Thermal Impedance
Pad / trace area *
Values
Pulse Capability
W
ohms
%
V
ppm/°C
°C
°C/W
mm
2
302
30
220
40
160
50
75
150
PWC0603
0.125
PWC0805
0.25
PWC1206
0.33
0.5
1R0 to 10M
10R to 1M: 0.5, All values: 1, 5
200
<10R:200
≥10R:100
-55 to +155
145
125
80
60
70
250
55
100
40
500
400
500
PWC2010
0.75
1
PWC2512
1.5
2
E24 or E96 preferred - other values to special order
See graphs – full application note available on request
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
Physical Data
Dimensions (mm) & weight (mg)
L
0603
0805
1206
2010
2512
1.6±0.1
2.0±0.15
3.2±0.2
5.1±0.3
6.5±0.3
W
0.8±0.1
1.25±0.15
1.6±0.2
2.5±0.2
3.2±0.2
T max
0.55
0.6
0.7
0.8
0.8
A
0.3±0.15
0.3±0.15
0.4±0.2
0.6±0.3
0.6±0.3
B min
0.6
0.9
1.7
3.0
4.4
C
0.3±0.15
0.3±0.1
0.4±0.15
0.6±0.25
0.6±0.25
Wt.
2.2
4.7
8.5
36
55
A
B
L
C
T
A
W
Wrap-around terminations
(3 faces)
Construction
Thick film resistor material, overglaze and organic protection
are screen printed on a 96% alumina substrate. Wrap-around
terminations have an electroplated nickel barrier and solder
coating, this ensures excellent ‘leach’ resistance properties
and solderability.
Note that anti-sulphur version parts below 5R are
produced in flip-chip format with the resistor element on
the underside.
Marking
Components are not marked. Reels are marked with type,
value, tolerance, date code and quantity.
Solvent Resistance
The body protection is resistant to all normal industrial
cleaning solvents suitable for printed circuits.
General Note
General Note
Welwyn Components reserves the right to make changes in product specification
or liability.
TT Electronics reserves the right to make changes in product specification without notice
without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
www.ttelectronics.com/resistors
07. 08
06.20
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© TT Electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
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