BITECH SMP500F

SURFACE MOUNT MOULDED POWER RESISTOR
Features…………………………………………………………
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ƒ
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Non-Inductive, Moulded Small, in circuit 10W.
Very low thermal resistance in multiple planes
SOIC type Package.
RoHS compliant.
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Applications………………………………………………
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ƒ
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High frequency emitter resistors in switching power supplies.
High precision CRT color video amplifiers.
High frequency snubber and pulse handling circuits.
Pulse generator load resistors.
In-rush current protection
Bleeder Resistors
Specification
Outline Dimensions
0.20 Typ
.008
11.3 max
.445
9.30+/-0.1
.366+/-.005
8.4 max
.330
9.00
.354
0.96 Typ
.038
3.50
.138
5.59+/-0.13
.220+/-.005
Rear view
Solderable
area
Dimensions:
mm
inches
Specifications subject to change without notice.
Items
Power Rating
Short time overload
Resistance Range (Ω)
Nominal Resistance Series
TCR(ppm/°C), see note 2.
Tolerance
Operating Temp. Range
Max. Operating Voltage
Dielectric Withstanding Voltage.
Load Life
Humidity
Temp. Cycle
Soldering Heat (Max)
Solderability
Insulation Resistance
Vibration
Specification
10 Watts
50W for 5s
10 to 10K
E12
100ppm/°C 10Ω and above
+/-1% & +/-5%
-55°C to+155°C
500VDC or √(P.R)
4000 V DC
∆R +/- (1 % + 0.05 Ω)
∆R +/- (1 % + 0.05 Ω)
∆R +/- (0.25% + 0.05 Ω)
∆R +/- (0.25 %+0.05 Ω)
Min. 95% coverage
Over 1,000 Meg Ω
∆R +/- (0.25% + 0.05 Ω)
Notes:
1. Tested in accordance with JD51 mounting instructions, in 5W application 10W available.
2. Contact factory for values below 10Ω..
3. Contact factory for custom products, non-standard values and tolerances
1
Test Conditions
25°C ambient. Note 1
25°C ambient. Note 1
-55°C to +155 °C
60 seconds.
25 °C, 90 min.ON, 30 min. OFF, 1000 hours.
40°C, 90-95%RH, DC 0.1W, 1000 hours.
-55°C,30 min.,+155°C,30 min., 5cycles
250+/-5°C, 3seconds,
230+/-5°C, 3seconds.
Between terminals and tab.
Surface Mount Moulded Power Resistor
Derating Curve
% Power (see Note 1)
+25 °C
100
80
60
40
20
+155 °C
0
-50
0
50
100
150
Ambient Temperature (°C)
200
Mounting Guidelines
Introduction
The power resistor has extremely low thermal resistances in each axis for maximum conducted, radiated and
convection heat dissipation. Using the JEDEC standard JD-51 as a guideline, coupled with your thermal design
experience in power semiconductors, you can maximise the potential of this unique SOIC style power resistor.
5W PCB Example
A small 40mm x 40mm, 5W, 4-layer test board configuration is illustrated to demonstrate the superior high
performance of the SMP power resistor using minimum real estate.
6.14 mm
1.70 mm
3.41 mm
Thermal vias
SMP Test board (rear)
5.65 mm
4.70mm
Rear landing area
SMP Test board (front)
Solder Pad Layout
10W PCB Example
Mounting details available on request.
Ordering Information
SMP
100
J
Model
Tolerance
1%: F
5%: J
Resistance Code
10Ω : 100
50 Ω : 500 First two digits significant, last digit: number of trailing zeros
2