SMD Power Resistors
Type 3520 Series
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
100
Rated Power (%)
80
60
40
20
0
-55
-40
-20
0 20 40
60 70 80
100
120 125
Ambient Temperature (°C)
For resistors operated in ambient temperatures above 70°C,
power rating must be derated in accordance with this curve.
1773139 CIS BI 10/2011
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to: te.com/help
SMD Power Resistors
Type 3520 Series
Dimensions
L
a
W
t
b
L
W
a
b
t
6.40
±0.20
3.20
±0.20
0.70
±0.10
0.70
±0.20
0.60
±0.10
Handling Recommendations
When flow soldering - the land width must be smaller than the Chip Resistor width to properly control the solder
application. Generally, the land width can be Chip Resistor width (W) x 0.7 to 0.8. When reflow soldering - solder
application amount can be adjusted. Thus the land width can be set to W x 1.0 to 1.3.
How to Order
3520
1K0
J
T
Common Part
Resistance Value
Tolerance
Pack Style
J - 5%
T - 4000 / reel
1 ohm
1000 milli ohms
1R0
3520
1K ohm
1000 ohms
1K0
1 Meg ohm
1000000 ohms
1M0
TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks.
Other logos, product and Company names mentioned herein may be trademarks of their respective owners.
While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other
representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein
at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change
without notice. Consult TE for the latest dimensions and design specifications.
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