A T C 5 4 5 L S E R I E S U B C
TM
C A P A C I T O R S
ATC 545L Series UBC
Ultra-Broadband Capacitor
TM
Features:
• EIA 0402 Case Size
• Capacitance: 100 nF
• Operating Frequency:
16 KHz (-3 dB roll-off) to 40+ GHz*
• Insertion Loss: < 0.5 dB typical
• Orientation Insensitive
• One Piece Construction
• Voltage Rating: 16 WVDC
• TCC: ±15% (-55°C to +125°C)
• RoHS Compliant Terminations
• Gold Terminations Available
ATC’s 545L Series Ultra-Broadband Capacitor (UBC
TM
) is
a unique component that provides ultra-low insertion
loss, flat frequency response and an excellent match
over multiple octaves of frequency spectrum in a one
piece configuration.
The 545L is ideal for ultra-broadband DC blocking,
coupling, bypassing, and feedback applications in
optical communications systems and equipment
using high-speed digital logic.
*25 °C, no bias applied
Patented Design
Advantages:
• Ultra-Broadband Performance
• Ultra-Low Insertion Loss
• Flat Frequency Response
• Excellent Return Loss
• Unit-to-Unit Performance Repeatability
• Rugged X7R Ceramic Construction
ATC 545L Series Insertion Loss (S21)
ATC 545L Series Return Loss (S11)
ATC 545L Data Sheet Test Condition Description
ATC testing to 40 GHz performed on 10-mil-thick Rogers RO4350 microstrip board, with the device under test subtending a 24 mil gap in a 22-mil-wide center
trace (nominal 50-ohm characteristic impedance). Modelithics model developed through testing on several different substrates, including 5-mil-thick Alumina
measured through 65 GHz. The modeled results presented for RO4350 were for a pad width of 20 mils and a gap of 16 mils.
Modeled data by
Modelithics Corp.
ATC # 001-1018
Rev. K; 7/11
A T C 5 4 5 L S E R I E S U B C
TM
C A P A C I T O R S
Electrical Specifications:
• Capacitance: 100 nF
• Rated Voltage:
16 WVDC from -55°C to +85°C
10 WVDC from -55°C to +125°C
• Dielectric Withstanding Voltage (DWV):
250% of rated WVDC for 5 secs.
• Operating Temperature Range: -55°C to +125°C
• Temperature Coefficient of Capacitance (TCC):
±15% (-55°C to +85°C), 16 WVDC
±15% (-55°C to +125°C), 10 WVDC
• Insulation Resistance:
10
8
Ω
min. @ +25°C @ rated WVDC
10
7
Ω
min. @ +125°C @ rated WVDC
0.040 in. ± 0.004 in.
(1.016 mm ± 0.1 mm)
Mechanical Dimensions
0.020 in. ± 0.004 in.
(0.508 mm ± 0.1 mm)
0.024 in. max.
(0.610 mm max.)
0.012 in. ± 0.008 in.
(0.305 mm ± 0.203 mm)
ATC PART NUMBER CODE
ATC 545
Series
Case Size
Capacitance Code:
104 = 100 nF
Capacitance Tolerance
WVDC
Termination Code
T = Tin Plated over Nickel Barrier
(Standard)
CA = Gold Plated over Nickel Barrier
W = Tin/Lead Solder Plated
over Nickel Barrier
Packaging
T - Tape and Reel
L
104
K
T
16
T
The above part number refers to a 545 Series (case size L) 100 nF capacitor,
K tolerance (±10%), with T termination (Tin Plated over Nickel Barrier), 16 WVDC, tape and reel packaging.
ATC accepts orders for our parts using designations
with
or
without
the
“ATC” prefix. Both methods of defining the part number are equivalent, i.e.,
part numbers referenced with the “ATC” prefix are interchangeable to parts
referenced without the “ATC” prefix. Customers are free to use either in
specifying or procuring parts from American Technical Ceramics.
For additional information and catalogs contact your ATC
representative or call direct at (+1-631) 622-4700.
Consult factory for additional performance data.
Sales of ATC products are subject to the terms and conditions contained in American Technical Ceramics Corp. Terms and Conditions of Sale (ATC document #001-992 Rev. B 12/05).
Copies of these terms and conditions will be provided upon request. They may also be viewed on ATC's website at www.atceramics.com/productfinder/default.asp. Click on the link
for Terms and Conditions of Sale.
ATC has made every effort to have this information as accurate as possible. However, no responsibility is assumed by ATC for its use, nor for any infringements of rights of third par-
ties which may result from its use. ATC reserves the right to revise the content or modify its product line without prior notice.
© 2007 American Technical Ceramics Corp. All Rights Reserved.
ATC # 001-1018 Rev. K; 7/11
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