50 Schoolhouse Lane
Portsmouth, RI 02871
Tel (401) 683-9700
Fax (401) 683-5571
e-mail: ims@ims-resistors.com
http://www.ims-resistors.com
*
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Features
Thin film technology
Full Wraparound
Nickel Barrier for
excellent solderability
Attenuation from 0 dB to 10
dB in 1 dB increments,
16 dB (A-1206, A-1612),
20 dB (A-1612)
VSWR 1.5:1 max.
(A-0402),1.3:1 all others
Thin Film Surface Mount Chip
Attenuators
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Terminations
Attenuation Ranges
Frequency Characteristics
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
02468101214
Attenuation
(dB)
Frequency (GHz)
10 dB
8 dB
6 dB
4 dB
3 dB
2 dB
VSWR
1.6
1.4
1.2
1.0
Frequency Characteristics (A-0805)*
A
Th
e
A
-
S
eri
e
s
i
s
a
v
a
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e
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m
0d
B
t
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1
0
d
B
i
n
1
d
B
i
ncrements.
S
tandard
i
mpedance
is
Ful
l
w
r
a
p
aroun
d
A-0603
,
0
8
05
,
1206
,
161
2
100% Matte Tin Finish
50 Schoolhouse Lane
Portsmouth, RI 02871
Tel (401) 683-9700
Fax (401) 683-5571
e-mail: ims@ims-resistors.com
http://www.ims-resistors.com
Dimensions
Characteristics
Operating Temperature -55oCto+125
oC
Impedance 50 Ω
Frequency range DC to beyond 10 GHz (A-0402WA, A-0603, A-0805)
DC to 3 GHz (A-1206) DC to 2 GHZ (A-1612)
)1:5.1-AW2040-Atpecxe(mumixam1:3.1RWSV
Attenuation 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16*, 20** dB
Attenuation tolerance
A-0805, 1141, A-1206, A-1612 ± 0.3 dB, ± 0.5 dB (1206 - 16 dB, 1612 - 16 dB,20dB)
A-0402WA, A-0603, 2533 ± 0.3 dB (0 - 3dB) ± 0.5 dB (4 - 7 dB) ± 1.0 dB (8 - 10 dB)
Specifications
Ordering Information
Part Number Length Width Height Terminal
* A-1206, A-1612 only **A-1612 only
A-Series ver.7 08/10 Specifications subject to change without notice.
T
W
HL
Face Up Example: 3 dB, 100 mW, SMT 0805 attenuator.
Prefix for Face Up
Attenuator
Form factor
0402WA, 0603, 0805,
1206, 1612
Attenuation level
*A-1206 & 1612 only ** A-1612 only
A -0805 - C -03DB
A-0603, A-0805, A-1206
A-0402WA
A-1612
T
W
H
L
00 - 10 dB, 16*, 20**dB
Maximum Working Voltage
A-0402WA 1.26WVDC
A-0603 & IMS2533 1.77WVDC
A-0805 & IMS1141 2.24WVDC
A-1206 2.50WVDC
A-1612 3.53WVDC
Rated Power (70°C)
A-0402WA 32mW
A-0603 & IMS2533 63mW
A-0805 & IMS1141 100mW
A-1206 125mW
A-1612 250mW
A-0402WA
A-0603 & IMS2533
A-0805 & IMS1141
A-1206
A-1612
0.039 ± .004
0.063 ± .004
0.079 ± .008
0.126 ± .008
0.165 ± .008
0.020 ± .004
0.032 ± .004
0.049 ± .008
0.063 ± .008
0.118 ± .008
0.014 max.
0.020 max.
0.020 max.
0.020 max.
0.020 max.
0.009 ± .002
0.016 ± .006
0.020 ± .008
0.039 ± .010
0.037 ± .008
&LQGLFDWHVLPSHGDQFH
Face Down Example: 3 dB, 100 mW, SMT 0805 attenuator.
IMS2533 = Face Down 0603
IMS1141 = Face Down 0805
Attenuation level
IMS1141 - 03DB
00 - 10 dB
For higher dB
values, higher power
ratings or lead
content attenuators
see our IAX Series