SMD Power Resistors
Type 3520 Series
1773139 CIS BI 10/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.
Key Features
I 1 Watt at 70°C
I Small Size to Power Ratio
I Supplied on Tape
I Available via Distribution
I Value Marked on Resistor
I 400 Volt Maximum Overload
I 200 Volt Working Voltage
I Laboratory Kit Available
I Low Profile
TE Connectivity is pleased to introduce this low cost high power device, suitable for auto
placement in volume, and for most applications, including high frequency operations,
owing to the short lead structure. It is attractively priced and available on 7" reels of
4000 pieces.
Characteristics - Electrical
Power Rating: 1 Watt at 70°C**
Max. RCWV*: 200V
Max. Overload Voltage: 400V
Resistance Tolerance(%): ±5%
Resistance Range: 1R0 - 1M0
Temperature Coefficient: ±200ppm
±350ppm**(below 10R)
Resistance Grid Value: E-24
* Rated continuous working voltage (RCWV) shall be determined from
RCWV = Rated Power x Resistance Value, or Maximum RCWV listed above, whichever is less
** Recommended Circuit Board Design - If this device is anticipated to run at full continuous power then action
to improve the cooling should be taken. This can be a metal substrate, copper pad left under the chip, an
opening in the PCB or enlarged silver conductor pads each end.
Power Derating Curve
-55 -40 -20 0 20 40 60 70 80 100 120 125
100
80
60
40
20
0
Rated Power (%)
Ambient Temperature (°C)
For resistors operated in ambient temperatures above 70°C,
power rating must be derated in accordance with this curve.
