Precision Metal Film Fixed Resistors
Type R Series
Characteristics Electrical
Type R Series
The resistive element comprises a thin
film of nickel-chrome alloy evaporated
onto a high thermal conductivity
ceramic element. Metal end caps are
force fitted to the element prior to
Rated Power @ 70 °C (W)
Resistance Range (ohms) Min
Max
Tolerance (%)
Code Letter
Temperature Coefficient (ppm/°C)
Selection Series
Limiting Element Voltage - Nominal (V)
Maximum Overload Voltage (V)
Operating Temperature Range (°C)
Dielectric Strength (V)
Insulation Resistance Min Dry (Mohms)
Voltage Coefficient Max (ppm/V)
YR8
ER8
0.125
51R1
511K
CR8
± 15
± 25
± 50
YR1
ER1
CR1
0.25
10R
1M0
0.1
0.25
0.5
B
C
D
± 15
± 25
± 50
E96
250
500
-65 to +155
500
10,000
5
200
400
YR2
ER2
0.5
10R
1M0
CR2
± 15
± 25
± 50
350
700
spiralling to value. Tinned copper lead
wires are welded to the end caps and
the components are then coated. One
Dimensions
coat of phenolic resin is followed by
three coats of epoxy resin. All resistors
are tested for value and tolerance.
Key Features
Precision metal film resistors
with tolerance to 0.1% and
temperature coefficients to
15ppm.
■
Metal film resistors have
excellent stability under load
and severe environmental
conditions. They exhibit very
low noise current and voltage
coefficients. Precision metal
film resistors are particularly
suitable in all applications
where long-term stability is
important.
Style
L*
D
d nom
R8
3.3 ± 0.1
1.7 ± 0.2
0.45
R1
6.3 ± 0.3
2.3 ± 0.2
0.6
R2
9.5 ± 0.5
3.5 ± 0.5
0.6
* Length is measured in accordance with IEC 294
Derating Curve
100
80
Percent Rated Power
■
60
40
20
0
40
60 70 80
100
120
140
160
Ambient Temperature (°C)
Surface Temperature Vs Load
Temperature Rise (°C)
40
30
20
10
0
0
20
40
60
80
100
Percent Rated Power
Literature No. 1773265
Issued: 04-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Precision Metal Film Fixed Resistors
Type R Series
Mounting
The resistors are suitable for processing on automatic insertion equipment and cutting and bending machines.
Marking
The resistors are marked with a five-band colour code in accordance with IEC 62.
Packaging
R series colour coded resistors are normally supplied taped in ‘ammo’ boxes of 1000 pieces.
All tape specifications are in accordance with IEC286-1.
Performance Characteristics
Evaluation of the performance characteristics is carried out with reference to IEC specifications
QC 400 000 and QC 400 100.
TEST REF
Long Term Tests ±(1% + 0.05 ohm)
4.23
Climatic sequence
4.24
Damp heat, steady state
4.25.1
Endurance at 70 °C
4.25.3
Endurance at 125 °C
TEST REF
Short Term Tests ±(0.25% + 0.05 ohm)
4.13
Overload
4.16
Robustness of terminations
4.18
Resistance to soldering heat
4.19
Rapid change of temperature
4.22
Vibration
How to Order
Orders for these components should include the following information:Type, tolerance code letter and value e.g. YR1 B 24K3
Literature No. 1773265
Issued: 04-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Mouser Electronics
Authorized Distributor
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TE Connectivity:
YR1B267KCC YR1B30R9CC YR1B374KCC YR1B412KCC YR1B66R5CC YR1B1K82CC YR1B649KCC
YR1B35K7CC YR1B10R5CC YR1B590KCC YR1B412RCC YR1B787KCC YR1B464RCC YR1B348RCC
YR1B105RCC YR1B59KCC YR1B2K8CC YR1B127RCC YR1B38R3CC YR1B187RCC YR1B453KCC
YR1B1K37CC YR1B7K32CC YR1B665KCC YR1B41K2CC YR1B432KCC YR1B84K5CC YR1B86R6CC
YR1B16R5CC YR1B19R1CC YR1B215KCC YR1B47K5CC YR1B22K6CC YR1B29R4CC YR1B162KCC
YR1B39R2CC YR1B140RCC YR1B12R7CC YR1B15R4CC YR1B107KCC YR1B71R5CC YR1B205RCC
YR1B806KCC YR1B21K5CC YR1B8K66CC YR1B953KCC YR1B16K2CC YR1B1K47CC YR1B76K8CC
YR1B78K7CC YR1B1K07CC YR1B1K24CC YR1B34K8CC YR1B6K49CC YR1B57R6CC YR1B3K65CC
YR1B422RCC YR1B7K68CC YR1B15R8CC YR1B226RCC YR1B4K42CC YR1B25R5CC YR1B261KCC
YR1B57K6CC YR1B383KCC YR1B1K27CC YR1B2K61 YR1B18R7CC YR1B442RCC YR1B453RCC
YR1B237KCC YR1B95R3CC YR1B825RCC YR1B210RCC YR1B90K9CC YR1B931RCC YR1B249KCC
YR1B2K74CC YR1B261RCC YR1B15K8CC YR1B143KCC YR1B1K15CC YR1B301KCC YR1B19R6CC
YR1B280RCC YR1B27K4CC YR1B887RCC YR1B28KCC YR1B37R4CC YR1B866RCC YR1B243KCC
YR1B113RCC YR1B5K49CC YR1B931KCC YR1B78R7CC YR1B5K76CC YR1B130RCC YR1B21KCC
YR1B42K2CC YR1B274KCC
Mouser Electronics
Authorized Distributor
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TE Connectivity:
YR1B100KCC YR1B100RCC YR1B102KCC YR1B10KCC YR1B10RCC YR1B110KCC YR1B110RCC
YR1B11KCC YR1B11K3CC YR1B121KCC YR1B121RCC YR1B124RCC YR1B12K1CC YR1B12K7CC
YR1B12R1CC YR1B13KCC YR1B140KCC YR1B150KCC YR1B150RCC YR1B15KCC YR1B15K4CC
YR1B15RCC YR1B162RCC YR1B16K5CC YR1B16K9CC YR1B174KCC YR1B182RCC YR1B18K2CC
YR1B19K6CC YR1B1K0CC YR1B1K02CC YR1B1K1CC YR1B1K4CC YR1B1K5CC YR1B1K54CC YR1B1K62CC
YR1B1K65CC YR1B1K69CC YR1B1K78CC YR1B1K91CC YR1B1K96CC YR1B1M0CC YR1B200KCC
YR1B200RCC YR1B20KCC YR1B20K5CC YR1B20RCC YR1B221KCC YR1B221RCC YR1B22K1CC
YR1B22R1CC YR1B22R6CC YR1B249RCC YR1B24K3CC YR1B24K9CC YR1B24R9CC YR1B25K5CC
YR1B28K7CC YR1B28RCC YR1B2K0CC YR1B2K05CC YR1B2K21CC YR1B2K32CC YR1B2K43CC
YR1B2K49CC YR1B2K67CC YR1B2K94CC YR1B301RCC YR1B309KCC YR1B30K1CC YR1B30R1CC
YR1B31K6CC YR1B332RCC YR1B33K2CC YR1B33R2CC YR1B340KCC YR1B365KCC YR1B374RCC
YR1B392KCC YR1B392RCC YR1B39K2CC YR1B3K09CC YR1B3K16CC YR1B3K32CC YR1B3K4CC
YR1B3K57CC YR1B40R2CC YR1B45K3CC YR1B45R3CC YR1B475RCC YR1B47R5CC YR1B487KCC
YR1B499KCC YR1B499RCC YR1B49K9CC YR1B49R9CC YR1B4K02CC YR1B4K12CC YR1B4K64CC
YR1B4K75CC