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SMD Chip Attenuator
The content of this specification may change without notification 08/28/2008 Custom solutions are available.
AAC AT series high performance 0402, 0805,
1206, and 1612 size thin film fixed chip attenuators exhibit excellent high frequency characteristics. The surface mount package is ideal for low noise, inductance and parasitic capacitance applications. The thin film metallization also offers very stable characteristics over temperature and time.
APPLICATION
HOW TO ORDER
AT 05 C -01dB 0.3 M LF
Terminal Type LF = Lead Free Packaging M = Standard Reel Qty O = 1,000/Reel B = bulk (100 pieces) Attenuation Tolerance per the specification Attenuation Value EIA standard value Impedance C = 50 D = 75 (for 1612 size)
Gain adjustment and impedance matching in high frequency circuits. Because control circuits need signals with identical levels, and a receiver receives signals with different signal levels, signal levels could be adjusted by combining a SMT attenuator and amplifier. At the same time, termination can be obtained using these low reflection attenuators.
Package Size 05 = 0402 18 = 1206 10 = 0805 28 = 1612 Style Fixed Chip Attenuator
FEATURES * Minimized parasite capacitance and inductance * Excellent temperature and noise characteristics due to thin film resistance elements * Frequency ranges: DC - 10GHz * Metallized resistors and electrodes are formed on ceramic substrate covered with polyamide resin.
SPECIFICATION
Size Attenuation Attenuation Tolerance 0-3dB: 4-7dB: 8-10dB: 0-10dB: 0-10dB: 16dB: 0.3dB 0.5dB 0.7dB 0.3dB 0.3dB 0.5db Imp Impedance Tolerance --7% (DC) --2% (DC) VSWR 1.5 1.3 1.3 See Below Frequency Range 0-10dB: 15dB: 20, 25dB: 0-10dB: 0-10dB: 16dB: 0-10dB: 16, 20dB: DC-10GHz DC-5GHz DC-3GHz DC-10GHz DC-3GHz DC-10GHz DC-10GHz Rated Input Power 32mW 100mW 125mW 250mW Refer to Derating Curve Temperature Range -55C ~ 125C -55C ~ 125C -55C ~ 125C -55C ~ 125C
0402 0805 1206 1612
0-10dB 0-10dB 0-10dB, 16dB 0-10dB, 16dB, 20dB
50 50 50 50
See below
Rated Ambient Temperature is 70C
ATTENUATION TOLERANCE (1612 Size Only)
Attenuation 0dB 1-10dB 16dB, 20dB Rank A A B B DC-2GHz +0.1dB/-0dB 0.1dB 0.2dB 0.2dB 2-5GHz +0.2dB/-0dB 0.2dB 0.3dB 0.3dB 5-10GHz +0.4dB/-0dB 0.4dB 0.5dB 0.5dB
DERATING CURVE
VSWR (1612 Size Only)
1.1: 1.2: 1.3: DC - 2GHz 2 - 5GHz 5 - 10GHz
188 Technology Drive, Unit H Irvine, CA 92618 TEL: 949-453-9888 FAX: 9494538889
American Accurate Components, Inc.
1
SMD Chip Attenuator
The content of this specification may change without notification 08/28/2008
DIMENSIONS (mm)
Size 0402 Size 0805 1206 W 0.500.05 L 2.0 0.10 3.2 0.20 dB 0dB 1dB 2 ~ 3dB 4 ~ 6dB 7 ~10dB 16 ~ 20dB L 1.000.05 W 1.25 0.10 1.60 0.20 L 4.20 0.20 4.20 0.20 4.20 0.20 4.20 0.20 4.20 0.20 4.20 0.20 T 0.020.01 t 0.40 0.10 0.40 0.10 W 3.00 0.20 3.00 0.20 3.00 0.20 3.00 0.20 3.00 0.20 3.00 0.20 W1 0.170.04 a 0.50 0.20 1.00 0.25 W2 0.140.06 b 0.60 0.20 1.00 0.20 W1 0.30 0.15 0.30 0.15 0.40 0.15 0.40 0.15 0.40 0.15 0.40 0.15 a1 0.390.07 W1 0.40 0.20 0.55 0.25 W2 0.85 0.15 0.85 0.15 0.85 0.15 0.65 0.15 0.65 0.15 0.85 0.15 a2 0.290.05 W2 0.40 0.20 0.400.25 W3 0.70 0.10 0.70 0.10 0.90 0.10 0.90 0.10 0.90 0.10 0.90 0.10 t 0.300.05 W3 0.35 0.20 0.40 0.20 t 0.8 0.15 0.8 0.15 0.8 0.15 0.8 0.15 0.8 0.15 0.8 0.15
1612
L1 ---1.90 0.20 1.90 0.20 1.75 0.20 1.60 0.20 1.60 0.20
L2 4.20 0.20 0.30 0.20 0.30 0.20 0.60 0.20 0.90 0.20 1.80 0.20
CIRCUIT
Applicable to all Sizes
0402
Input and Output Terminals Input and Output Terminals Ground Terminals
LEGEND
Resistor: Nichrome Thin Film Protective Coat: Polymide Resin Terminals: Solder Plating Substrate: Alumina Ceramics Marking: White Ink
0805
1206
1612
188 Technology Drive, Unit H Irvine, CA 92618 TEL: 949-453-9888 FAX: 9494538889
American Accurate Components, Inc.
2
SMD Chip Attenuator
The content of this specification may change without notification 08/28/2008
CHARACTERISTICS
Specification Item Condition Size 0402 Short Time Overload Voltage of 2.5 times the rated voltage shall be applied for 5 seconds. 0805 1206 1612 The attenuator shall be subjected to rated voltage for 90 minutes followed by a pause of 30 minutes at a temperature of 703C. This constitutes 1 cycle. The cycles shall be repeated for 1,000 hours. The attenuator shall be subjected to rated voltage for 90 minutes followed by a pause of 30 minutes at a temperature of 602C with relative humidity of 90% to 95%. This constitutes 1 cycle. The cycles shall be repeated for 1,000 hours. 0402 0805 1206 1612 0402 0805 1206 1612 0402 Temperature Cycle [-55C 30 minutes-R.T. 3 minutes-+125C 30 minutes-R.T. 3 minutes] The attenuator shall be subjected to 5 continuous cycles. 0805 1206 1612 0402 Resistance to Soldering Heat The attenuator shall be immersed into the solder of 2605C for 101 seconds. 0805 1206 1612 0402 Substrate Bending Distance between the fulcrums: 90mm Bending width: 3mm Substrate: Glass-Epoxy t=1.6mm 0805 1206 1612 0402 Solderability The attenuator shall be dipped into the solder of 2355C for 30.5 seconds. A new uniform coating of solder shall cover 95% or more of surface being immersed. 0805 1206 1612 0402 Insulation Resistance DC 500V for 1 minute 0805 1206 1612 0402 Temperature Characteristic R.T. - R.T. +100C - R.T. 0805 1206 1612 0.02dB 0.005dB 0.005dB 0.005dB 0.02dB 0.005dB 0.005dB 0.01dB 50ppm/C 50ppm/C 50ppm/C 50ppm/C 1000M or over A new uniform coating of solder shall cover 95% or ore of surface being immersed Attenuation 0~10dB 0.03dB 0.02dB 0.02dB 0.01dB 0.05dB 0.04dB 0.04dB 0.02dB 0.05dB 0.04dB 0.04dB 0.02dB 0.03dB 0.02dB 0.02dB 0.01dB 0.03dB 0.02dB 0.02dB 0.01dB 0.03dB 0.02dB 0.02dB 0.01dB 16, 20dB 0.03dB 0.02dB 0.02dB 0.02dB 0.05dB 0.04dB 0.04dB 0.04dB 0.05dB 0.04dB 0.04dB 0.04dB 0.03dB 0.02dB 0.02dB 0.02dB 0.03dB 0.02dB 0.02dB 0.02dB 0.03dB 0.02dB 0.02dB 0.02dB Impedance 0.5% 0.2% 0.2% 0.2% 1.0% 0.5% 0.5% 0.5% 1.0% 0.5% 0.5% 0.5% 0.5% 0.2% 0.2% 0.2% 0.5% 0.2% 0.2% 0.2% 0.5% 0.2% 0.2% 0.2%
Load Life
Moisture Load Life
Note: Impedance value and attenuation value shall be checked by DC measurement.
188 Technology Drive, Unit H Irvine, CA 92618 TEL: 949-453-9888 FAX: 9494538889
American Accurate Components, Inc.
3
SMD Chip Attenuator
The content of this specification may change without notification 08/28/2008
TAPE SIZE (mm) - Table 1
Size 0402 0805 1206 1612 A 0.65 0.03 1.60 0.20 1.85 0.10 B 1.15 0.03 2.40 0.20 3.60 0.10 4.60 0.10 W 8.0 0.20 8.0 0.30 8.0 0.20 12.0 0.10 F 3.5 0.05 3.5 0.05 3.5 0.05 5.5 0.10 E 1.75 0.10 1.75 0.10 1.75 0.10 1.75 0.10 P1 2.0 0.05 4.0 0.10 4.0 0.10 8.0 0.10 t 0.5 0.10 1.5 Max 1.0 0.10 0.8 0.10
TABLE 1
REEL DRAWING
TAPE MATERIALS
A heat press sticks the transparent or half-transparent plastic covered tape.
REEL DIMENSIONS (mm)
Tape Width
INSERTING DIRECTION
Attenuators are packed with their cathodes on perforation side and with their electrodes faced with the bottoms of the pockets.
8.0 0.1 12.0
0.2
A 178 178
2
B 60 60
5
C 13.5 13.5
1
D 21 21
0.5
E 2.5 2.5
1
W 8.4 14.0
+2
A tape reel diameter of 330mm is also applicable.
PACKAGE QUANTITY
Case Size 0402 0805 1206 1612 Standard Package Unit (pcs) Type Quantity Plastic Tape 10,000 Plastic Tape 5,000 Plastic Tape 5,000 Plastic Tape 2,000
PACKAGE DESCRIPTION ADHESION STRENGTH OF COVER AT PEELING
When the cover tape is peeled off in such a manner as indicated in the illustration below, adhesion strength F must be within the range of 0.2994 0.196N. The standard number of attenuators to be accommodated by one reel is as indicated in Table 1. One side surface of a reel is marked with the following items of information. 1. 2. 3. 4. 5. 6. 7. Name of Attenuator or product identification Rated voltage Attenuation value Attenuation tolerance value Quantity Lot number for production month/year Manufacturer's name or symbol
PACKING & STORAGE
The attenuators are packed in such a manner that they will not possibly be damaged during transit or storage. As far as they are stored at normal temperature with normal humidity (5 to 35C, below75% RH), they are warranted for a period of two years from the date of manufacture.
188 Technology Drive, Unit H Irvine, CA 92618 TEL: 949-453-9888 FAX: 9494538889
American Accurate Components, Inc.
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