Thick Film Power Resistors
Type BDS100 Series
Type BDS100 Series
Characteristics -
Electrical
Resistance Range:
Resistance Tolerance:
TCR:
Rated Power:
Capacitance:
Series Inductance:
Limiting Element Voltage:
Isolating Voltage:
Single Shot Voltage:
Insulation Resistance:
Partial Discharge:
Heat Dissipation:
R47 - 1MO
± 10%, 5% (Tighter by discussion)
R<1Ω
± 250ppm/°C
R>1Ω
± 150ppm/°C
Heatsink: 115°C / 100°C / 60°C
25W / 50W / 100W
Parallel
15pF
To Earth
40pF
40nH (Maximum)
(100W or Less)
500Vdc/ac rms
(Terminal to Heatsink)
2.5kVac rms
1.5/50ms
4kV
(at 500V dc)
>100GΩ
at 2kV
<10pC
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.
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 -
Environmental
Endurance (Rated Power):
Humidity Load Life:
Temperature Cycling:
Operating Storage Temp:
Short Term Overload:
Vibration:
Bump:
2000cyc. at P
Rated
56 Days, 40°C, 95% RH
-55°C to +125°C, 5cycles
-55°C to +125°C
3 x P
Rated
(10s)
10/500Hz
40g 4000 bumps
∆R
0.25% Typ
∆R
0.25% Typ (I.R.>10GΩ)
∆R
0.25% Typ
∆R
0.25% Typ
∆R
0.25% Typ
∆R
0.25% Typ
Characteristics -
Mechanical
Terminal Size:
Terminal Torque (max.):
Creepage Distance:
Clearance:
Heatsink Surface Finish:
Heatsink Flatness:
Weight:
M4
1.3Nm
10mm
10mm
3mm
< 6µm
0.05mm
35g
Key Features
I
100W in a 9.5cm
2
footprint
•
Gives an impressive
power density of
10.5W/cm
2
Virtually inductance-free
•
Inductance < 40nH
Wide resistance range:
0.47Ω to 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
Terminal to Heatsink
Terminal to Terminal
R
a
I
I
Dimensions
M4 Nuts
37.8 ±0.2
30 ±0.15
4
12 ±0.2
3
25.4 ±0.2
12 ±0.2
15.5 ±0.2
4
37.8 ±0.2
30 ±0.15
3
25.4 ±0.2
ø4.2
ø4.2
3.8 ±0.2
4.5 ±0.2
1
15 ±0.2
2
3.8 ±0.2
4.5 ±0.2
M4 Nuts
15.5 ±0.2
I
1
ø4.2
15 ±0.2
2
I
Applications
I
I
I
Snubbing (Low inductance)
Balancing Resistor
(Multi-resistor package)
Filter (Low inductance)
I
I
High Voltage
High Frequency
Literature No. 1773308
Issued: 02-06
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
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