MEGGITT CGS
HIGH VOLTAGE RESISTORS
HIGH VALUE RESISTORS
HIGH POWER RESISTORS
ALUMINIUM CLAD RESISTORS
CURRENT SENSE RESISTORS
SMD Power Resistors
TYPE 3520 SERIES
Meggitt CGS 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.
MEGGITT CGS
KEY FEATURES
1 WATT AT 70°C
SMALL SIZE TO POWER RATIO
SUPPLIED ON TAPE
AVAILABLE VIA DISTRIBUTION
VALUE MARKED ON RESISTOR
ATTRACTIVELY PRICED
400 VOLT MAXIMUM OVERLOAD
200 VOLT WORKING VOLTAGE
LABORATORY KIT AVAILABLE
LOW PROFILE
MEGGITT
ELECTRONIC
COMPONENTS
SALES ACTION DESK
TEL: (01793 611666)
FAX: (01793 611777)
EMAIL: sales@megelec.co.uk
WEB SITE: www.megelec.co.uk
LOG No FO730
ISSUE 8
2 Pages
01-01
SPECIFICATION
ELECTRICAL
Series
Power Rating Max. RCWV
at 70°C
(Note 1)
**1 Watt
(See Note 2)
Max. Overload
Voltage
TYPE 3520 SERIES
Page 2 of 2
Resistance Resistance Range
Tolerance (%) Min. Max.
±2%, ±5%
10R ~ 1M0
1R0 ~ 9R1
Temperature Resistance Value
Coefficient
Grid
±200ppm
E-24
±350ppm
3520
200V
400V
±5%
Note 1.
Rated continuous working voltage (RCWV) shall be determined from
RCWV = Rated Power x Resistance Value, or Maximum RCWV listed above, whichever less.
PACKAGING SPECIFICATION
P
0
P
2
OD
0
0.3 max.
E
Packaging Quantity
W
F
B
OD
1
P
1
A
1.0 max.
A
(mm)
B
W
F
E
P
1
4000 Pieces
per 7" Reel
1 W 3.40 6.60 12.0 5.50 1.75
4.00
±0.10 ±0.10 ±0.30 ±0.05 ±0.10 ±0.10
POWER DERATING CURVE
Rated Load (%)
For resitors operated in ambient temperatures above
70°C, power rating must be derated in accordance with
the curve right.
40
20
**
RECOMMENDED CIRCUIT BOARD DESIGN - NOTE 2
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.
0
-60 -40 -20 0 20 40 60 80 100 120 140 160 180
○
○
○
○
○
○
60
○
○
100
80
70°C
○
○
125°C
Ambient Temperature °C
DIMENSIONS
L
a
w
t
b
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
Dimensions (mm)
a
3.6 - 4.0
b
7.6 - 8.6
c
2.3 - 3.5
Part
No.
3520
L
Dimensions (mm)
b
W
a
t
adhesive
Chip Resistor
0.70 0.60
6.40 3.20 0.70
±0.20 ±0.20 ±0.10 ±0.20 ±0.10
a
b
HOW TO ORDER
3520
Common Part
1K0
Resistance Value
1 ohm
1000 milli ohms
1K Ohm
1000 ohms
1 Meg Ohm 1000000 ohms
1R0
1K0
1M0
J
Tolerance
G - 2%
J - 5%
Pack Style
TG - Cut Tape
Lengths
T - 4000
3520
Meggitt Electronic Components Ltd. Ohmic House, Westmead Industrial Estate, Swindon, Wilts. SN5 7US
Telephone:(01793)487301(Admin.) (01793)611666 (Sales) EMail:sales@megelec.co.uk Fax:(01793) 611777
This publication is issued to provide outline information only and (unless specifically agreed to the contrary by the Company in writing) is not to form part of any order
or be regarded as a representation relating to the products or service concerned. We reserve the right to alter without notice the specification, design, price or conditions
of supply of any product or service. Whilst Meggitt Electronic Components products are of the very highest quality and reliability, all electronic components can occasionally
be subject to failure. Where failure of a Meggitt Electronic Components product could result in life threatening consequences, then the circuit and application must be discussed
with the Company. Such areas might include ECG, respiratory. and other medical and nuclear applications and any non fail safe applications circuit.
c
T
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