SURFACE MOUNT MOULDED POWER RESISTOR
Features………………………………………………………… .
Non-Inductive, Moulded Small, in circuit 10W.
Very low thermal resistance in multiple planes
SOIC type Package.
RoHS compliant.
Applications……………………………………………… ………
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
Specifications subject to change without notice.
Items Specification Test Conditions
Power Rating 10 Watts 25°C ambient. Note 1
Short time overload 50W for 5s 25°C ambient. Note 1
Resistance Range (Ω)10 to 10K
Nominal Resistance Series E12
TCR(ppm/°C), see note 2. 100ppm/°C 10Ω and above -55°C to +155 °C
Tolerance +/-1% & +/-5%
Operating Temp. Range -55°C to+155°C
Max. Operating Voltage 500VDC or √(P.R)
Dielectric Withstanding Voltage. 4000 V DC 60 seconds.
Load Life ∆R +/- (1 % + 0.05 Ω)25 °C, 90 min .ON, 30 min. OFF, 1000 hours.
Humidity ∆R +/- (1 % + 0.05 Ω)40°C, 90-95%RH, DC 0.1W, 1000 hours.
Temp. Cycle ∆R +/- (0.25% + 0.05 Ω)-55°C,30 min.,+155°C,30 min., 5cycles
Soldering Heat (Max) ∆R +/- (0.25 %+0.05 Ω)250+/-5°C, 3seconds,
Solderability Min. 95% coverage 230+/-5°C, 3seconds.
Insulation Resistance Over 1,000 Meg ΩBetween terminals and tab.
Vibration ∆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
Rear view Solderable
area
Outline Dimensions
Dimensions: mm
inches
3.50
.138
9.00
.354
5.59+/-0.13
.220+/
-
.005
9.30+/-0.1
.366+/
-
.005
11.3 max
.445
0.20 Typ
.008
8.4 max
.330
0.20 Typ
.008
0.96 Typ
.038
10Ω : 100
50 Ω : 500 First two digits significant, last digit: number of trailing zeros
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.
10W PCB Example
Mounting details available on request.
Ordering Information
SMP 100 J
Model
Tolerance
1%: F
5%: J
Resistance Code
+155 °C
-50 0 50 100 150 200
Ambient Temperature (°C)
100
80
60
40
20
0
+25 °C
% Power (see Note 1)
Derating Curve
Surface Mount Moulded Power Resistor
2
SMP Test board (rear)
Rear landing area
Thermal vias
SMP Test board (front)
5.65 mm
Solder Pad Layout
1.70 mm 6.14 mm
3.41 mm
4.70mm
