HPC Series (DISCONTINUED)
High Power Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
The HPC series represents a breakthrough in functional design, thermal management
and end-user benefits.
Borrowing from long-proven techniques used in power
semiconductors, the HPC series provides up to eight times more useful power than SMD
power resistors currently available.
The HPC series, through superior characterization, is intended to remove the
mystery of managing board level power by combining established techniques in
new ways. The result is superior technology in design options, in a cost effective
package.
Features:
•
•
•
•
•
Up to 12W with no external heat sinks
Compatible with conventional pick and place
Only 0.5 x 0.5 PCB footprint
Non-inductive resistive element
Anodized heat sink top provides 800V voltage
withstanding
•
•
•
•
Up to 50W for short duration
Stackpole patent no. US 7,286,358 B2
Available in 1% and 5% tolerance
RoHS compliant
Electrical Specifications
Type / Code
HPC12
Power Rating
(Watts) @ 40ºC
w/400 LFM air flow
12W
Power Rating
(Watts) @ 40ºC
no air flow
5W
Maximum
Working
Voltage
200V
Maximum
Overload
Voltage
400V
Dielectric
Strength
1,500V
Inductance
<2nH
Resistance
Temperature
Coefficient
±150 ppm/ºC
Ohmic Range (Ω)
and Tolerance
1%, 5%
0.025 - 250K
Please refer to the High Power Resistor Application Note (page 4) for more information on designing and
implementing high power resistor types.
Mechanical Specifications
Type / Code
HPC12
L
Body Length
0.48
12.19
W
Body Width
0.50
12.70
H
Body Height
0.40
10.16
b
Bottom Termination
0.11
2.79
Unit
inches
mm
Rev Date: 05/12/2016 (DISCONTINUED)
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
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HPC Series (DISCONTINUED)
High Power Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics
Test
Short Time Overload
Dielectric Withstanding Voltage
Resistance to Soldering Heat
Solderability
Temperature Cycle
Test Conditions (JIS C 5202)
2.5x rated voltage for 5 seconds
100VAC, 1 minute
260ºC ±5ºC for 10 sec; ±0.5 sec (Solder Bath)
235ºC ±5ºC for 2 sec.; ±0.5 sec (Colophonium flux)
-65ºC: 30 min.; 25ºC: 2 to 3 min.
150ºC: 30 min.; 25ºC: 2 to 3 min.
(5 cycles)
40ºC ± 2ºC, 90% to RH, rated load
90 min. ON, 30 min. OFF for 1,000 hrs. -0 hrs. / +48 hrs.
70ºC ± 2ºC, 90% to RH, rated load
90 min. ON, 30 min OFF for 1,000 hrs. -0 hrs. / +48 hrs.
1/10 rated voltage for 3 sec. max. then rated voltage for 3 sec. max.
Bend of 3mm for 5 ± 1 sec.
Test Results
±(2% + 0.1Ω)
±(1% + 0.05Ω)
±(1% + 0.05Ω)
95% coverage, minimum
± (1% + 0.05Ω)
Jumper (<0.05Ω)
±(3% + 0.1Ω)
Jumper (<0.05Ω)
±(3% + 0.1Ω)
Jumper (<0.05Ω)
± 100 (ppm/V)
±(1% + 0.05Ω)
Endurance (Damp load)
Endurance (Rated load)
Voltage Coefficient
Robustness of Termination
HPC12 Power Derating Curve
14
Max Peak Power (Watts) .
12
400 LF/M Airflow
10
8
6
4
2
200 LF/M Airflow
No Airflow
0
40
70
100
130
Ambient Temperature (Deg. C)
HPC12 Power vs. Duration
Max Peak Power (Watts) .
60
50
40
30
20
10
0
1
15
30
45
60
75
90
Peak Power Duration (seconds)
10% Duty Cycle 200 LF/M
10% Duty Cycle, No Airflow
30% Duty Cycle, 200 LF/M
33% Duty Cycle, No Airflow
Rev Date: 05/12/2016 (DISCONTINUED)
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
2
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marketing@seielect.com
HPC Series (DISCONTINUED)
High Power Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
How to Order
1
2
3
4
5
6
7
8
9
10
11
H
P
C
1
2
J
T
1
K
0
0
Product Series
HPC High Power SMD
Size
12
Power
12W
Tolerance
Code
Tol
F
1%
5%
J
Code
T
B
Packaging
Description
Tape
Bulk
Size
12
Quantity
200
100
Resistance Value
Four characters with the
multiplier used as
the decimal holder.
-3
"L" used as multiplier of 10
for any value under 0.1 ohm.
0.025 ohm = 25L0
0.125 ohm = R125
0.1 ohm = R100
100 Kohm = 100K
Legacy Part Number (before January 3, 2011):
SEI Type
Code
Nominal Resistance
Tolerance
Packaging
HPC
Type
HPC
Description
High Power SMD
12
Code
12
1K
5%
Tolerance
1%
5%
Types
HPC12
Qty
200
100
R
Description
Tape
Bulk
Code
R
B
Rev Date: 05/12/2016 (DISCONTINUED)
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
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marketing@seielect.com
HPC Series (DISCONTINUED)
High Power Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
High Power Chip Resistors and Thermal Management
Stackpole has developed several surface mount resistor series in addition to our current sense resistors,
which have had higher power ratings than standard resistor chips. This has caused some uncertainty and
even confusion by users as to how to reliably use these resistors at the higher power ratings in their designs.
The data sheets for the RHC, RMCP, RNCP, CSR, CSRN, CSRF, CSS, and CSSH state that the rated
power assumes an ambient temperature of no more than 100 degrees C for the CSS / CSSH series and 70
degrees C for all other high power resistor series. In addition, IPC and UL best practices dictate that the
combined temperature on any resistor due to power dissipated and ambient air shall be no more than 105C.
At first glance this wouldn’t seem too difficult, however the graph below shows typical heat rise for the CSR
½ 100 milliohm at full rated power. The heat rise for the RMCP and RNCP would be similar. The RHC with
its unique materials, design, and processes would have less heat rise and therefore would be easier to
implement for any given customer.
The 102 degrees C heat rise shown here would indicate there will be additional thermal reduction techniques
needed to keep this part under 105C total hot spot temperature if this part is to be used at 0.75 watts of
power. However, this same part at the usual power rating for this size would have a heat rise of around 72
degrees C. This additional heat rise may be dealt with using wider conductor traces, larger solder pads and
land patterns under the solder mask, heavier copper in the conductors, vias through PCB, air movement, and
heat sinks, among many other techniques. Because of the variety of methods customers can use to lower
the effective heat rise of the circuit, resistor manufacturers simply specify power ratings with the limitations
on ambient air temperature and total hot spot temperatures and leave the details of how to best accomplish
this to the design engineers. Design guidelines for products in various market segments can vary widely so it
would be unnecessarily constraining for a resistor manufacturer to recommend the use of any of these
methods over another.
Note:
The final resistance value can be affected by the board layout and assembly process, especially the size of the
mounting pads and the amount of solder used. This is especially notable for resistance values ≤ 50 mΩ.
This should be taken into account when designing.
Rev Date: 05/12/2016 (DISCONTINUED)
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
4
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