AT02M750.03 - Rev A - Page 1 of 2
Product Family:
Part Number Series:
High Precision Chip Attenuators
PAT W-Series
Construction:
High Purity Alumina Substrate
Ni alloy thin-film resistive elements
Wrap around electrodes
100% matte tin over Ni terminations
(RoHS compliant and Pb Free)
Features:
1712 and 2218 English case sizes
Attenuation values between 0-20dB
Attenuation tolerances as tight as
±0.1dB
50Ω impedance
High volume production suitable for
commercial and special applications
Description:
These precision chip attenuators offer a very wide functional frequency range and are ideal for circuits that handle different
frequencies. Compared to attenuation circuits consisting of a combination of discrete resistors, the greatly reduced parasitic
capacitance and inductance of these attenuators allow for the true value to be obtained. One center signal terminal and two ground
side terminals offer easy integration within connectors. The standard offering is for these products to be placed into the carrier tape
with the pattern side facing up as reflected in the taping orientation diagram. Parts are also available taped with pattern side facing
down as reflected in the Part Numbering section.
Product Dimensions:
Dimension
L
(Length)
W
(Width)
H
(Height)
W2
(Electrode Width)
(English 1712)
0.165 ±0.008
PAT3042C
(English 2218)
0.220 ±0.008
PAT4556C
0.118 ±0.008
0.177 ±0.008
0.032 ±0.006
0.032 ±0.006
0.035 ±0.004
0.055 ±0.004
Note: Dimensions in inches
PAT W-Series Part Numbering:
Ex: PAT3042-C-10dB-AT*
Product
Designator
Metric Size
(English)
3042 (1712)
4556 (2218)
Impedance Code
Attenuation
Value
Either 3 or 4
digits as required
(i.e. “3dB” = 3dB,
“10dB” = 10dB)
Attenuation
Tolerance
A
B
T&R Packaging
Quantity *
-B = Bulk
-T = 1,000
Tape
Orientation
-H = Ground side
(bottom) facing up
PAT
C = 50Ω
Leave blank for
(see electrical
(see electrical
ground side facing
section for details) section for offerings)
down (normal)
* Note:
All part numbers will automatically have a “-LF” appended to the end of them to indicate RoHS compliance/Pb Free (RoHS 6/6).
Metric Size
(English size)
3042 (1712)
3042 (1712)
4556 (2218)
Examples:
Part Number
PAT3042-C-3dB-AB-H
PAT3042-C-10dB-AT
PAT4556-C-20dB-BB
Attenuation
Value
3dB
10dB
20dB
Attenuation
Tolerance
A (see electrical tables)
A (see electrical tables)
B (see electrical tables)
Package Qty
B = Bulk (50 pcs MOQ)
T = 1,000 pcs Tape and Reel
B = Bulk (50 pcs MOQ)
Taping Orientation
H = Ground Facing Up in Tape
Ground Facing Down in Tape
Ground Facing Down in Tape
Thin Film Technology Corp. / 1980 Commerce Drive, North Mankato, MN 56003 (USA) / (507) 625-8445 /
www.thin-film.com
AT02M750.03 - Rev A - Page 2 of 2
Electrical Specifications:
Type
English Size
Metric Size
Frequency Range
Impedance (code)
Attenuation (dB)
DC~<2GHz
Attenuation Tolerance (± dB)
2~<5GHz
5~10GHz
DC~<2GHz
VSWR
2~<5GHz
5~10GHz
Rated Input Power
Rated Ambient Temperature
PAT3042C
1712
3042
DC ~ 10.0 GHz
50Ω (C)
0 ~ 10
A = ±0.1dB
B = ±0.2dB
A = ±0.2dB
B = ±0.3dB
A = ±0.4dB
B = ±0.5dB
16, 20
B = ±0.2dB
B = ±0.3dB
B = ±0.5dB
< 1.1
< 1.2
<1.3
250mW
70°C
0 ~ 10
PAT4556C
2218
4556
16, 20
B = ±0.2dB
B = ±0.3dB
B = ±0.5dB
A = ±0.1dB
B = ±0.2dB
A = ±0.2dB
B = ±0.3dB
A = ±0.4dB
B = ±0.5dB
500mW
Packaging
(B=Bulk, T=Tape & Reel)
B = 50pcs minimum, increments of 1
or
T = 1,000 pcs/reel
Derating:
Taping Orientation
(Standard Orientation - See part numbering section for further details):
Thin Film Technology Corp. / 1980 Commerce Drive, North Mankato, MN 56003 (USA) / (507) 625-8445 /
www.thin-film.com
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