SMHP Datasheet, PDF (4/6 Pages) Bi technologies – 20W TO-263 HIGH POWER SURFACE MOUNT RESISTORS

SMHP25 Series
Power Resistor _OBSOLETE
SMHP25 Series
· 245°C reflow compatible
· TO-263 housing
· Low inductance and capacitance for
high frequency circuits
·^s 25W power rating
s
·_s
High stability film resistance elements
·_s RoHS compliant
s
s
IRC’s SMHP series resistors satisfy demanding applications for accurate
and stable power resistors housed in the convenient TO-263 case. The
resistance element is isolated from the mounting tab by an alumina ceramic layer, providing very low thermal
resistance and ensuring high insulation resistance between terminals and metal back plate. The non-inductive
design makes these products especially useful in high frequency and high speed pulse applications.
Electrical Data
Power Rating¹
Voltage Thermal ^{Resistance Range}
Heatsink² Free Air^{3 Rating4 Resistance}
Min
Max
0.01Ω
0.09Ω
25W
2.5W 500 V 3.3°C/W
0.1Ω
9.1Ω
10Ω
51KΩ
1_{Maximum current 25 amps}
2_{Power rating based on 25°C case temperature}
3_{Power rating based on 25°C ambient temperature}
4_{Maximum voltage 500V or √P x R}
5_{Contact factory for availability of resistance or tolerance}
values outside this range
Typical TCR For Low Values
250
200
150
100
50
0.01
0.1
1.0
Resistance (Ohms)
Nominal
Tolerances Resistance
Series⁵
Typ. TCR
(ppm/°C)
Inductance
Capacitance
±1%, ±5%
E24
Includes
2.5 & 5.0
multiplier
See Chart
<10nH
<2pF
Temperature Rise Data
120 ^{Resistor Film Temp Rise with Respect to Tab Temp}
100
80
60
40
20
00
5
10
15
20
25
30
35
Power (Watts)
Pulse Energy Durability
10K
Power Derating Data
100
Damage Level
1K
100
Safety Zone
10
10µ
100µ
1m
10m
Pulse Width (seconds)
100m
50
10
25°
Tab Temperature (°C)
155°
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.bitechnologies.com www.irctt.com www.welwyn-tt.com
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