BR
bga resistor networks
resistors
EU
features
•
Virtually eliminates channel capacitance,
a primary cause of reduced system performance
•
Eases routing design of DDR SDRAM termination
•
High precision ±1% is standard
•
Saves board space and high density mounting
•
Marking: Black body color with white marking (cut-out)
•
Products with lead-free terminations meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
dimensions and construction
L
Size
Code
BR27A
BR36S
P
.039±.010
(1.0±0.25)
.039±.010
(1.0±0.25)
Dimensions
inches
(mm)
H
øD
K
.026±.002
(0.67±0.05)
.026±.002
(0.67±0.05)
.020±.010
(0.50±0.25)
.020±.010
(0.50±0.25)
.045±.006
(1.15±0.15)
.045±.006
(1.15±0.15)
L
W
Coplanarity
W
Ceramic Marking Inner
Electrode
Substrate
Protective
Coating
H
Lead-Free
Solder
K
P
øD
.354±.006
(9.0±0.15)
.087 Max.
(9.0±0.15)
.118±.006
(3.0±0.15)
.006 Max.
.157±.006
(0.15 Max.)
(4.0±0.15)
Resistive
Tinning Ball Film
(Cu core)
circuit schematic
R
1
=R
2
=R
3
..... R
17
=R
18
R
1
=R
2
=R
3
..... R
17
=R
18
R
17
R
18
R
17
R
18
R
1
R
2
R
3
R
4
R
1
R
2
R
3
R
4
BR27A
BR36S
ordering information
New Part #
BR
Type
27
Number of
Terminals
27: 27 Terminal
36: 36 Terminal
A
Circuit
Symbol
A: Parallel
network
S: Separate
P
Terminal
Pitch
P: 1 mm
T
Termination
Material
T: Sn
TEB
Packaging
TEB:
8 mm pitch
embossed
plastic
1001
Nominal
Resistance
±1%: 3 significant
figures + multiplier
“R” indicates
decimal on values
<100Ω
F
Resistance
Tolerance
F: ±1%
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/28/10
80
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
bga resistor networks
applications and ratings
Part
Number of
Designation Terminals
27
BR
36
Circuit
Symbol
A
S
Power
Rating
0.05W / element
1W / package
Resistance
Range (Ω)
E-24
F: ±1%
10-1K
T.C.R.
(ppm/°C)
Maximum
Working
Voltage
25V
Maximum
Overload
Voltage
50V
Rated
Operating
Ambient
Temperature
Temperature
Range
+70°C
-55°C to
+125°C
±200
environmental applications
Derating Curve
100
80
% Rated Power
60
40
20
0
-60 -40 -20
-55
0
80 100 120 140
125
70
Ambient Temperature
(°C)
20
40
60
160
Performance Characteristics
Parameter
Resistance
T.C.R.
Short Time Overload
Resistance to Soldering Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Low Temperature Storage
High Temperature Exposure
Maximum
∆
R ±%
1% within specified tolerance
Within specified T.C.R.
±0.5%
±0.5%
±0.5%
1.0%
1.0%
0.5%
1.0%
25°C
-55°C/+125°C
Rated voltage times 2.5 for 5 seconds
250°C±5°C, 30 seconds, 3 times
-65°C (30 min.)/+125°C (30 min.) 5 cycles
0.1 Rated load, 85°C, 85% RH, 1000 hours
70°C, full load 2000h 1.5h ON/0.5h OFF cycle
-65°C, 24h, no load
125°C, 1000h, no load
Test Method
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/28/10
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
81
resistors
BR
单片机
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