High Power Resistors
Type ER/ERV Series
Type ER/ERV Series
Characteristics - ER Series
Electrical
Power Rating (W) at 40°C:
Power Rating (W) at 70°C:
Resistance Range:
Maximum Element Volts:
ER74
3W
2.5W
R03-10K
100V
ER58
7W
6W
R05 - 20K
200V
ER16
11W
9W
R13-68K
500V
ER17
14W
12W
R20-100K
750V
Characteristics - ERV Series
Electrical
A tough silicone coated power
resistor. The coating and marking
are resistant to Trichloroethene VG,
Genklene LV Hot and Cold, Freon
TE, Arklone A, Flourosil E, Freon
TMS, Arklone L Hot and Cold and
Arklone F Hot. If the resistor is in
contact with the PCB the maximum
dissipation to avoid damage to the
PCB
may
be
to
ascertained
the
graph.
hot
by
spot
reference
temperature
Power Rating (W) at 20°C*:
Power Rating (W) at 70°C*:
Resistance Range:
Maximum Element Volts:
ERV74
3W
1.5W
R10-3K9
100V
ERV58
7W
3W
R10-6K8
200V
ERV16
11W
5W
R15-27K
500V
* When mounted in the horizontal and vertical plane only - inverted mounting may result in heat damage of the PCB
- Consult Technical Department
Characteristics -
Environmental
-55°C to 200°C
56 days
ER Series < 1 ohm ± 10% ~ > 1 ohm ± 5%
ERV Series E24 - 5% ~ E12 10%
Tolerances of down to:
± 0.5% are available
Load Life Stability:
± 5%
Temperature Coefficient*:
< 1 ohm 0 ± 200ppm/°C maximum
> 1 ohm 0 + 60 ppm/°C typical
*Very low temperature coefficients to ± 20ppm/°C are available to special order
Solderability conforms to:
BS 2011 Test 2.1 Ta Solder bath method
(IEC 68-2-20) Wets in < 2 seconds
Termination Robustness:
BS 2011 Test 2.1 Ua withstands 0.5 kg tensile load
and double bend with 0.25 kg load
Endurance - 1000hrs @ 200°C:
ΔR -0 +2%
Overload:
10 time rated dissipation for 5 seconds ΔR ± 0.5%
Humidity:
56 days/95% R.H./ +_45°C -0 +5%
Temperature Rapid Change:
ΔR ± 0.03%
Temperature Category:
Humidity Classification:
Standard Tolerances:
Vertical
mounting style is available. The ER
series is suited to a wide range of
industrial, control, medical and
consumer applications.
Key Features
■
■
■
■
■
■
■
■
High Power Dissipation
Tough Silicone Coating
Special Pulse Styles
Available
0.5% Tolerance Available
Resistant to Most
Solvents
Vertical Mount Styles
Available
Custom Designs
Welcomed
Widely Available via
Distribution
Power Ratings
Dissipation / Ambient Temperature
Power Ratings
Hot Spot Temperature @ 40°C
ER74
Surface Temperature (°C)
15
14
12
11
Watts
9
7
6
3
0
20
50
70
100
150
ER17
ER16
ER58
ER74
200
Ambient Temperature (°C)
400
300
200
100
20
0
2
4
6
ER58
ER16
ER17
8
10
12
14
16
Rating (Watts)
Literature No. 1773212
Issued: 11-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
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