MHP TO-220 Series
Power Resistor
MHP Series
•
•
•
•
•
•
TO-220 housing
Low inductance and capacitance for high frequency circuits
Available in 20W, 35W, or 50W
High stability film resistance elements
RoHS compliant
Approved to DSCC drawings 07017 and 07018
IRC’s MHP series resistors satisfy demanding applications for accurate
and stable power resistors housed in the convenient TO-220 case. The
resistance element is isolated from the mounting tab by an alumina ceramic layer, providing very low ther-
mal resistance and ensuring high insulation resistance between terminals and tab. The non-inductive design
makes these products especially useful in high frequency and high speed pulse applications.
Electrical Data
Type
Power Rating
1
Heatsink
2
MHP-20
20W
Free Air
3
2.25W
Voltage
Rating
4
Thermal
Resistance
Resistance
Range
Min
0.01Ω
500V
5.9°C/W
0.1Ω
10Ω
0.01Ω
MHP-35
35W
2.25W
500V
3.3°C/W
0.1Ω
10Ω
0.01Ω
MHP-50
1
2
Tolerances
Max
0.09Ω
9.1Ω
51KΩ
0.09Ω
9.1Ω
51KΩ
0.09Ω
9.1Ω
51KΩ
±1%, ±5%
±1%, ±5%
±1%, ±5%
Nominal
Resistance
Series
5
E24
Includes
2.5 & 5.0
multiplier
E24
Includes
2.5 & 5.0
multiplier
E24
Includes
2.5 & 5.0
multiplier
Typ. TCR
(ppm/°C)
Induc-
tance
Capaci-
tance
See Chart
<9nH
<2pF
See Chart
<9nH
<2pF
50W
2.25W
500V
2.3°C/W
0.1Ω
10Ω
See Chart
<10nH
<2pF
Maximum current 25 amps
Power rating based on 25°C tab 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
Pulse Energy Durability
10K
Frequency Characteristics
10K
MHP20LF 10K
MHP20
MHP35
MHP50
Pulse Peak (Watts)
1K
Damage Level
Impedance (ohms)
1K
MHP20LF 1K00
100
Safety Zone
10
10µ
100
MHP20LF 100R
MHP20LF 50R0
100µ
1m
10m
100m
10
10K
MHP20LF 22R0
100K
1M
10M
100M
1G
Pulse Width (seconds)
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
Frequency(Hz)
Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
MHP TO220 Series Issue May 2010
MHP TO-220 Series
Power Resistor
Physical Data
Note: Metal tab is electrically isolated.
G
A
C
L
C
L
ØD
Dim
A
N
B
C
in (nom)
0.398
0.591
0.177
0.142
0.610
0.158
0.118
0.108
0.020
0.030
0.059
0.200
0.059
0.630
mm
10.1 ±.2
15.0 ±0.2
4.5 ±0.2
3.6 ±0.1
15.5 ±1.0
4.0 ±0.5
3.0 ±0.2
2.75 ±0.2
0.5 ±0.05
0.75 ±0.05
1.5 ±0.05
5.08 ±0.1
1.5 ±0.05
16.0 ±0.1
B
C
ØD
E
F
P
L
F
E
K
G
H
J
C
L
M
H
C
L
C
L
Case, Epoxy UL94-V0
Leads, Sn Plated Cu
Conductor, Cu
Resistor, Ni-Cr or RuO
Substrate, Alumina
Tab, Ni Plated Cu
J
K
L
M
N
P
Insulated Between Tab and Resistor
Lead Material
Tab Material
Tin Plated Copper
Nickel Plated Copper
Environmental Data
Test
Thermal Shock
Moisture Resistance
Vibration
Load Life
Resistance to Solder Heat
Dielectric Withstanding Voltage
Insulation Resistance (between terminal and
tab)
Solderability
Operating Temperature Range
*
During soldering, the soldering temperature profile must not cause the metal tab of this device to exceed 220°C.
Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Method
MIL-STD-202 Method 107 Condition F
MIL-STD-202 Method 106
MIL-STD-202 Method 204 Condition D
MIL-STD-202 Method 108 1,000 Hours
MIL-STD-202 Method 210 Condition B
MIL-STD-202 Method 301
MIL-STD-202 Method 302
MIL-STD-202 Method 208
Specification - Performance
±0.30% + 50mΩ
±1.0% + 50mΩ
±0.25% + 50mΩ
±1.0% + 50mΩ
±0.25% + 50mΩ
2200 volts DC or 1500 volts AC;
60 seconds
>1000MΩ
>95% coverage
-55°C to +155°C
MHP TO-220 Series Issue May 2010
MHP TO-220 Series
Power Resistor
Power Derating Data
100
140
120
∆T
film
(°C)
Temperature Rise Data
Resistor Film Temp Rise with Respect to Flange Temp
MHP20
MHP35
MHP50
% of Rated Power
100
80
60
40
20
0
0
50
10
25°
Flange Temperature (°C)
155°
5
10
15
20
25 30
Power (Watts)
35
40
45
50
Typical TCR For Low Values
TCR (ppm/°C) 0 to 100°C
250
200
150
100
Tube Packaging Data
Tube Dimensions
Dim
A
B
G
Nom.
(mm)
3.25
8.0
16.25
34.4
6.4
R0.7
535.0
Tol.
(mm)
0.15
0.15
0.15
(34.0)
(6.0)
(R0.5)
1.0
C
D
E
E
50
0.01
F
Resistance (Ohms)
0.1
1.0
A
B
C
D
F
G
Ordering Data
Prefix
Style
TFP - MHP20LF - 1R50 - J
- L04
MHP20LF = 20W, TO-220 style power resistor
MHP35LF = 35W, TO-220 style power resistor
07017 = DSCC drawing (07017) ver. of above
MHP50LF = 50W, TO-220 style power resistor
07018 = DSCC drawing (07018) ver. of above
Application Notes:
1.
Insulating material is unnecessary between the heat sink
and the tab, as the resistor film is isolated by the internal
alumina substrate.
2. When mounting with a fastener, thermal grease is
recommended.
3. Thermal design should satisfy the following equation: Tab
Temperature (T
T
) + [Thermal Resistance (R
qJT
) x Power
applied (Watts)]
≤
155°C over the full operating temperature
of the application.
4. Resistor film temperature is not to exceed 155°C during
operation.
5. This product is RoHS compliant by exemption according to
RoHS directive 2002/95/EC exemptions 5 & 7, as they apply
to lead in glass and internal solder connections.
Resistance Code
4-digit resistance code.
Ex: 10R0 = 10Ω, 1K00 = 1KΩ
Absolute Tolerance Code
J = ±5%; F = ±1%
Standard Packaging
L04 = RoHS compliant tube (50 pcs per tube)
For additional information or to discuss your specific requirements, please contact our
Applications Team using the contact details below.
Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
MHP TO-220 Series Issue May 2010
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