Technical Characteristics
Precision Coating MELF precision resistors,ppm
Type UAR1/4 UAR1/8 UAR1/10
Power Rating at 85°C (W) 0.33 0.25 0.125
Max. Working Voltage (V) 300 300 300
Resistance Range (Ω ) 500.0~1.0M 100.0~1.0M 100.0~1.0M
Dimensions
(mm)
L±0.3 14.8 10.0 6.8
D±0.3 5.2 3.7 2.5
A±0.05 0.60 0.60 0.60

Specification
Tolerance: ±0.02, ±0.05, ±0.10, ±0.25, ±0.5, ±1.0%
Temp. Coefficient: ±3, ±5, ±10, ±15ppm/°C
Standard temperature characteristic: +25 to 85 °C
on request: -10 to +85 °C
Noise: less than 0.05 μV/V
Voltage coefficient: less than 0.02 ppm/V
Non linearity (3. Harm): more than (-100)dB
Inductivity: ≤1MHz
Thermal voltage to copper: 1 ~ 3 μV/°C
Isolations Resistance: 1010Ω

Tests According MIL STD 202
Temperature cycling: 0.02%
Low temp. operation: 0.013%
Short time overload: 0.01%
Dielectric strength: 0.01%
Load life: 0.04%
Resistance to soldering heat: 0.012%
Moisture test: 0.050%
Shock-and Vibrations test: 0.015%

How to Order
UAR1/8 210R B C6 P
Part Number
UAR1/4
UAR1/8
UAR1/10
Resistance Value
(Ω)
210R 210Ω
2K1 2.1KΩ
21K 21KΩ
Resistance Tolerance (%)
A2 ±0.02%
A5 ±0.05%
B ±0.10%
C ±0.25%
D ±0.50%
F ±1.00%
Temperature
coefficient (ppm/°C)
C9 ±3ppm/°C
C7 ±5ppm/°C
C6 ±10ppm/°C
C5 ±15ppm/°C
Package
P Bulk


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