FHR 4-2321
FEATURES
•
•
•
•
•
•
Resistances from 0.001Ohm to 50Ohms
Power Rating to 40Watt
Resistance Tolerances to ±0.1%
TCR to ±15ppm/K
Very Low Inductance
Load Stability to 0.1%
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
Power Rating
Tolerances
from 0R001
from 0R005
from 0R01
Thermal Resistance
Stability (1000h)
Temperature Coefficient
0.001 to 100 Ohms (Q)
Option 1 (P) upon request for selected values
Voltage Proof
< 0R005
≥ 0R005
Maximum Current
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
Free air 70°C
With heatsink
3W
40W
1% / 2% / 5%
0.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
2.0 K/W
0.1% / 0.2% / 0.5%
(depends on stress)
±25ppm/K (20 to 60°C)
±15ppm/K (20 to 60°C)
other specifications upon request
300 VDC
500 VAC
150 A
< 1µV/K
-40 to 130 °C
CuNiMn-Foil
Anodized aluminium
Epoxy or PPS
Cu / tinned
4 (standard contact S)
0.8 Nm
FHR 4-2321
0.001 to 50 Ohms
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance - TCR
FHR 4-2321 0R002 S 1% Q
Document No.: 64246
Revision: 04-10-2018
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
1
FHR 4-2321
FIGURE 1—TEMPERATURE COEFFICIENT
2000
0
Limit 2
-2000
∆R/R
(ppm)
-4000
Nominal
∆R/R
-6000
-8000
Limit 1
-10000
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
FIGURE 2—DERATING
Power Rating Notes -
120
Power ( % from
nominal power)
100
80
60
40
20
0
25
0.5%
0.2%
0.1%
The FHR Series Resistors must be attached to a suitable heat-
sink. The maximum internal resistor temperature is 130°C.
To specify an appropriate heatsink use the following formula :
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
50
85
100
115
130
Where:
Temperature of the backplate (°C)
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—DIMENSIONS
in mm (inches)
Dimension
A
±0.2 (±0.008)
B
±0.2 (±0.008)
C
±0.1 (±0.004)
D
±0.1 (±0.004)
E
±0.2 (±0.008)
F
±0.2 (±0.008)
G
±0.2 (±0.008)
H
±0.2 (±0.008)
I
±0.2 (±0.008)
J
±0.1 (±0.004)
K
±0.1 (±0.004)
L
±0.2 (±0.008)
M
±0.2 (±0.008)
N
±0.1 (±0.004)
O
±0.1 (±0.004)
P
±0.2 (±0.008)
Q
±0.1 (±0.004)
R
±0.2 (±0.008)
17.25 (0.68)
22.30 (0.88)
3.20 (0.13)
Ø
3.20 (
Ø
0.13)
16.75 (0.66)
7.62 (0.30)
17.78 (0.70)
1.50 (0.06)
1.10 (0.04)
2.00 (0.08)
3.00 (0.12)
8.00 (0.31)
3.00 (0.12)
1.50 (0.06)
4.50 (0.18)
3.75 (0.15)
0.80 (0.03)
2.10 (0.08)
www.powertron.de
2
For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64246
Revision: 04-10-2018
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
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
