Thick Film Power Resistors
Type BDS300 Series
Type BDS300 Series
Characteristics -
Electrical
Resistance Values:
Resistance Tolerance:
Temperature Coefficient:
Power Rating:
Capacitance / Mass:
Capacitance / Parallel:
Inductance:
Maximum Working Voltage:
Insulation Voltage:
Single Shot Voltage:
Insulation Resistance:
Partial Discharge:
R505 to 100K
±5% or ±10%
±150ppm/°C (others upon request)
300W at 85°C
110 pF
40 pF
80 nH
5,000VDC
6kVrms, 50Hz,1Min.
up to 12 kV Normwave (1.5/50µ secs)
10GΩ Min. at 500V
3kVrms <10pC
The BDS300 has been designed for
use as a snubber resistor where
compensatation is required for C-R
peaks in traction power supply
equipment.
The
High alumina
metallized ceramic is ideally suited
to allowing maximum connection to
the main heatsink. The resin filled
epoxy casing provides large creep
distance to mass, large air distance
between the terminals and high
insulation resistance, whilst the
design of the Resitive element
element allows for perfect current
yeild over the entire component.
Characteristics -
Environmental
Operation Temperature:
Short Time Overload:
-55°C to +150°C
1.5x rated power = 450W at 70°C for 10 sec,
∆R
= 0.4% max.
Characteristics -
Mechanical
Terminal Size:
Max. Torque for Contacts:
Max. Torque for Mounting:
Creeping Distance:
Air Distance:
M4 or M5 Screws
2 Nm
1.8 Nm
42mm Minimum
14mm Minimum
Key Features
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Easy connection with M4
or M5 screws
Connector heights
available from
25 to 42mm
Increased creep distance
up to 85mm
Potted cable connections
available on request
Custom Designs available
Dimensions
7.0
18.0
ø4.1 ±
0.2
0.05
36.0±0.3
5.0 ±0.5
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15.0
30.0 ±0.5
32.0 ±0.5
34.0 ±0.2
57.0 ±0.2
65.0
øM5
Derating Curve
120
100
Rated Power (%)
80
60
40
20
0
0
25
50
75
100 125
150
Case Temperature °C
175
200
Pulse Energy
100000
10000
1000
Energy (W/s)
100
10
1
0.1
0.01
0.001
0.01
0.1
1
10
100
Time (msecs)
1000
10000 100000
Applications
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Snubbing
(Low inductance)
Balancing Resistor
(Multi-resistor package)
Filter (Low inductance)
High Voltage
High Frequency
How to Order
BDS 2
Common Part
A
Circuit Type
300
Power Dissipation
1K0
Resistance Value
0.5Ω (500mΩ) R50
BDS 2 (2 Terminal)
A: Standard
300 - 300 Watts
1Ω (1000mΩ) 1R0
1K (1000Ω) 1KO
60.0
J
Tolerance
J - 5%
K - 10%
Literature No. 1773187
Issued: 07-06
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
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