KPR KHR 2-T227
FEATURES
•
•
•
•
•
Resistances from 0.05Ohm to 5MOhms
Power Rating to 200Watt
Resistance Tolerances to ±1%
TCR to ±50ppm/K
TO-227 (TO-238) Housing
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
Power rating
With heatsink
Tolerances
from 0.05 Ohms
from 0.1 Ohms
Thermal Resistance Rthj-c
Stability (1000h)
Temperature Coefficient
0.05 to 0.099 Ohms
0.1 to 5 MOhms
Voltage Proof
Inductivity
Capacity
100W
2% / 5% / 10%
1% / 2% / 5% / 10%
0.7 K/W
1%
±300 ppm/K
±100 ppm/K
upon request ±50 ppm/K
Standard 1.5 kVDC / upon request 2.5 kVDC
≤ 50 nH
≤ 35 pF
10000
KPR 2-T227
200W
KHR 2-T227
0.05 Ohms to 5 MOhms
0.35 K/W
max. working voltage (VDC)
1000
Max. Voltage
depending on resistance value
100
10
1
10 Ohm
100 Ohm
1 kOhm
5 kOhm
10 kOhm 100 kOhm
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
backplate
terminals
-40 to 155°C
Thick Film
Al
2
O
3
Epoxy
Cu / tinned
2 (standard contact G - bended)
1.5 Nm
1.3 Nm
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance
Standard: KHR 2-T227 10R000 G 5%
Special: KHR 2-T227 12K500 G 5% 2.5 kVDC dia 1
Document No.: 64211
Revision: 31-01-2015
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
1
KPR KHR 2-T227
FIGURE 1—TEMPERATURE COEFFICIENT
100ppm/K
7000
∆R/R (ppm)
50ppm/K
2000
-3000
-8000
-50
-25
0
Temperature (°C)
25
50
75
100
125
FIGURE 2—DERATING
Power Rating Notes -
120
Power ( % from
nominal power)
100
80
60
40
20
0
50
75
85
100
115
130
145
155
Temperature of the backplate (°C)
The KPR / KPN / KHR / KHN Series Resistors must be at-
tached to a suitable heatsink. The maximum internal resistor
temperature is 155°C.
To specify an appropriate heatsink use the following formula :
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
Where:
R
qH
= Thermal Resistance of Heatsink ( K/W )
R
qR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
FIGURE 3—PULSE STABILITY
10kJ
3kJ
1kJ
300J
Pulse Energy
100J
30J
10J
3J
1J
0,3J
0,1J
0,
00
02
0,
00
05
0,
01
0,
02
0,
05
0,
00
1
0,
00
2
0,
00
5
10
0
0,
1
0,
2
0,
5
10
20
50
1
2
5
Pulse time (s)
www.powertron.de
2
For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64211
Revision: 31-01-2015
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the
application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
use in a particular application. You should ensure you have the current version of the relevant information by contacting
VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
conduct of VPG.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do
so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.
Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such
applications.
Product names and markings noted herein may be trademarks of their respective owners.
Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
1
Talking
京公网安备 11010802033920号
EEWORLD
