Thick Film Power Resistors
Type BDS100 Series
Literature No. 1773308
Issued: 02-06
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Key Features
■
100W in a 9.5cm2footprint
•Gives an impressive
power density of
10.5W/cm2
■
Virtually inductance-free
•Inductance < 40nH
■
Wide resistance range:
0.47Ωto 1MΩ
•Coupled with 1%
tolerance gives ultimate
design flexibility
■
Multiple terminal
configurations and
multi-resistor packages
•The space saving
solution
■
Partial discharge
<10pC at 2kV
•Guaranteeing quality,
reliability and long life
Applications
■
Snubbing (Low inductance)
■
Balancing Resistor
(Multi-resistor package)
■
Filter (Low inductance)
■
High Voltage
■
High Frequency
Type BDS100 Series
With less than 40nH inductance and
a 100Watt power rating in an
easy-mounting 38mm x 25mm Isotop
case, the BDS100 offers high power
density over a wide range of ohmic
values (R47 – 1M0) and benefits from
10 years experience in the field.
Available in 6 resistor configurations
with 2 or 4 easy to connect terminals,
the resistors are made from quality
materials for optimum reliability and
stability with very low partial dis-
charge.
Tyco can test resistors to conform to
relevant customer specifications,
and will advise on the use of resistors
for pulse energy and high voltage
applications (HV designs available).
Resistors with alternative
terminations or flying leads are
available, and custom designs are
welcome.
This product is available via
distribution.
Characteristics -
Electrical
Resistance Range: R47 - 1MO
Resistance Tolerance: ± 10%, 5% (Tighter by discussion)
TCR: R<1Ω± 250ppm/°C
R>1Ω± 150ppm/°C
Rated Power: Heatsink: 115°C / 100°C / 60°C 25W / 50W / 100W
Capacitance: Parallel 15pF
To Earth 40pF
Series Inductance: 40nH (Maximum)
Limiting Element Voltage: (100W or Less) 500Vdc/ac rms
Isolating Voltage: (Terminal to Heatsink) 2.5kVac rms
Single Shot Voltage: 1.5/50ms 4kV
Insulation Resistance: (at 500V dc) >100GΩ
Partial Discharge: at 2kV <10pC
Heat Dissipation: Although the use of proprietary heat sinks with lower thermal resistance is
acceptable, up rating is not recommended. The use of proprietary heat sink
compound to improve thermal conductivity is essential.
Characteristics -
Environmental
Endurance (Rated Power): 2000cyc. at PRated ∆R 0.25% Typ
Humidity Load Life: 56 Days, 40°C, 95% RH ∆R 0.25% Typ (I.R.>10GΩ)
Temperature Cycling: -55°C to +125°C, 5cycles ∆R 0.25% Typ
Operating Storage Temp: -55°C to +125°C
Short Term Overload: 3 x PRated (10s) ∆R 0.25% Typ
Vibration: 10/500Hz ∆R 0.25% Typ
Bump: 40g 4000 bumps ∆R 0.25% Typ
Characteristics -
Mechanical
Terminal Size: M4
Terminal Torque (max.): 1.3Nm
Creepage Distance: 10mm
Clearance: Terminal to Heatsink 10mm
Terminal to Terminal 3mm
Heatsink Surface Finish: Ra< 6µm
Heatsink Flatness: 0.05mm
Weight: 35g
Dimensions
37.8 ±0.2
30 ±0.15
15 ±0.2
15.5 ±0.2
3.8 ±0.2
4.5 ±0.2
ø4.2 ø4.2
M4 Nuts
12 ±0.2
25.4 ±0.2
12 ±0.2
15 ±0.2
37.8 ±0.2
30 ±0.15
ø4.2
25.4 ±0.2
3.8 ±0.2
4.5 ±0.2
M4 Nuts
15.5 ±0.2
12
43
12
43
Thick Film Power Resistors
Type BDS100 Series
Literature No. 1773308
Issued: 02-06
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Derating Curve Pulse Energy
0 20 40 60 80 100 120
100
80
60
40
20
0
Power (W)
Heatsink Temp. (degC)
0.01 0.1 1 10
10
0.1
0.1
Energy (J)
Time (msecs)
How to Order
BDS 2 A 100 1K0 J
Common Part
A: Standard
B-F: See above
Circuit Type
100 - 100 Watts
at 70°C
Power Dissipation Resistance Value
BDS 2 (2 Terminal)
BDS 4 (4 Terminal)
BDH 2
(2Term. High Voltage)
BDH 4
(4 Term. High Voltage)
0.6Ω
(600mΩ)
R60
1Ω
(1000mΩ)
1R0
1KΩ
(1000Ω)
1KO
1MΩ
(1000000Ω)
1MO
Tolerance
F - 1%
J - 5%
K - 10%
Terminal Circuit Type
1
A (Standard)
1
4
2
3
D (Isolated)
1
4
2
3
E (Network Tapped)
4
1
3
2
F (Network 3 Res.)
1
B (Voltage Sense)
1
C (Special)
2
2
3
34
