收藏本站
USR UNR 2-T220 / T220B / T221
USS UNS 2-T220
Precision Foil Resistors
? 
? 
? 
? 
? 
? 
? 
Resistances from 0.5Ohm to 150kOhms
Power Rating to 10Watt
Resistance Tolerances to ±0.01%
TCR to ±3ppm/K
Load Stability to 0.01%
TO-220 Housing
Convenient SMD D2Pak Available
SPECIFICATIONS
Type
Resistance Range
Power rating
free air 70°C (R<50R0)
free air 70°C (R>50R0)
with heatsink (R<50R0)
with heatsink (R>50R0)
Thermal Resistance Rthj-c
R<50R0
R>50R0
USR / USS
0.5 Ohms to 150 kOhms
1.5W
1.0W
10W
6W
10.8 K/W
18.8 K/W
UNR /UNS
0.5 Ohms to 5 kOhms
1.5W
1.0W
15W
10W
6.8 K/W
10.8 K/W
Tolerances
from 0.5 Ohms
from 10.0 Ohms
from 25.0 Ohms
from 50.0 Ohms
Stability
Shelf Life Stability
Temperature Coefficient
Voltage Proof
Thermal EMF
Operating Temperature Range
Resistor Material
0.1% / 0.25% / 0.5% / 1%
0.05% / 0.1% / 0.25% / 0.5% / 1%
0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01%
25ppm / ?R after 1 year
50ppm / ?R after 3 year
max. ±5ppm/K (-55 to 155°C)
typ. ±3ppm/K (-55 to 125°C)
1 kVDC
< 0.1μV/K
-55 to 155°C
NiCr-Foil
Substrate
Housing
Connector Material
Terminals
Soldering Temperature
Max. Torque
Notes
Al 2 O 3
AlN
Epoxy + Cu heatsink nickel plated
Cu tinned
2
210°C <30 seconds
other versions upon request
1.0 Nm
Specially designed for applications with fast
changing electrical load
Ordering Information
Part Description: Part Type - Resistance - Contact - Tolerance - TCR
Example: UNR 2-T220B 5.7kOhms C 0.5% 3ppm
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
10/13
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
UT-1/2A-485-1% RES 485 OHM 1/2W 1% WW AXIAL
V23005B 4F104 RELAY GEN PURPOSE DPDT 5A 220V
V23026A1002B201 RELAY GEN PURPOSE SPDT 1A 12V
V23047-A1110-A501 RELAY SAFETY DPDT 6A 110V
V23050A1048A542 RELAY SAFETY 6PST 8A 48V
V23054D1003F104 RELAY GEN PURPOSE DPDT 5A 220V
V23079A2003B301 RELAY GEN PURPOSE DPDT 2A 12V
V23079B1202B301 RELAY GENERAL PURPOSE DPDT 2A 6V
相关代理商/技术参数