RC Series
Metal Glaze™ High Power Density
ze
Pow
Surface Mount Power Resistor
Pow
MRC Series
TM
w
C1/2:
(contact factory for higher values)
·
f
w
factor
150°C maximum operating temperature
v
w
ckage
·
Superior surge handling capability
w
c
r
w
rature
f r
·
RoHS compliant Versions available
MRC1/2:
r
factor f
v
r
r
rature
·
1/2 watt
ze
1/8 watt
Pow
in
package
w
MRC1/2: 0.05
Ω
Pow
f
Ω
r
c
·
to 1.0
Surf
TM
MRC
ckage
Series
w
ze
™
r
c
rate
ze
™
r
c
rate
rature
r
rature
r
ov
ck
r
ov
ck
r
Industry
IRC
Max.
Working
Max.
Resistance
TCR
Tolerance
Size
Industry
IRC
Max.
Working
Max.
Resistance
TCR
Product
Tolerance
2
3
Footprint Type Power Rating
Rating Voltage
2
Voltage
Range (ohms)
3
3
(±%)
3
Voltage
Range (ohms)
3
(±%)
Code
1
Footprint Type Power
Voltage
(ppm/°C)
3
(ppm/°C)
Catagory
1,2,
Product
Catagory
Lo
1,2,
1,2,
Lo
6
C
MRC1/2
6
MRC1/2
C
C
K
K
K
K
1,2,
Toler
Toler
for
C1/2
eal estate a
E
as a
MRC Applications:
MRC1/2
pplications:
real estate a
as a
1/2 watt at
r
a
1/2 watt at
r
a
to
e
f
ower
r
MRC
r
surge
y,
Characteristics
to
e
Maximum Change
fie
P
P
P
P
f
ower
r
MRC
r
surge
Test Method
for
also
f
y,
also
f
Temperature Coefficient
Thermal Shock
C
wor
v
Test Method
Charact
Low
stics
eri
Temperature Operation
Maximum Change
Short Time Overload
High Temperature Exposure
Resistance to Bonding Exposure
rature Coefficient
fie
overage
f
f
P
P
P
P
P
f
f
f
s
r
al Shock
C
wor
v
mperature Operation
Solderability
Moisture Resistance
Life Test
flo
ime Overload
gr
P
P
P
P
f
f
fl
f
mperature Exposure
Strength
Terminal Adhesion
Resistance to Board Bending
ance to Bonding Exposure
flo
e er
P
f
f
ability
overage
P
P
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.
re Resistance
Note
General
© TT electronics plc
s
r
st
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
al Adhesion Strength
gr
09. 12
Metal Glaze™ High Power Density
TM
Surface Mount
High Power Density
Metal Glaze
Power Resistor
Surface Mount Power Resistor
MRC Series
MRC Series
Repetitive Surge Curve
1000
Power Derating Curve
100
Peak Power (watts)
100
% Of Rated Power
60
MRC 1/2
0
10
25
70
150
Ambient Temperature (°C)
1
0.0001
0.001
0.01
0.1
1
Surge or Pulse Duration (seconds)
Note: Use for repetitive pulses where the average power dissipation
is not to exceed the component rating at 70°C. Surge handling capacity
for low-repetitive surges may be significantly greater than shown above.
Contact factory for recommendations.
Ordering Data
Sample Part No.
IRC Type
(MRC 1/2)
MRC1/2
100
1000
F
13
LF
Temperature Coefficient
50 ppm, 100 ppm, 200 ppm
Resistance Value
(100 and greater - First 3 significant figures plus 4th digit multiplier)
Example: 100 = 1000, 1000 = 1001, 150,000 = 1503
(Less than 100 - "R" is used to designate decimal)
Example: 51 = 51R0, 1 = 1R00, 0.25 = R250
Tolerance
(C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%)
Packaging Code*
(BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel)
RoHS Compliance
LF = RoHS compliant version
© IRC Wirewound and Film Technologies Division
T
:
F
:
W
:
T
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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 12
PCB Design
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