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DATA SHEET
Surface Mount Schottky Quad Mixer Diodes
Features
Tight parameter distribution Available as ring quads, crossover quads, bridge quads and octoquads 100% DC tested Designed for high-volume commercial applications Available in tape and reel packaging Available lead (Pb)-free and RoHS-compliant

Absolute Maximum Ratings
Characteristic Reverse voltage (VR) Value Rated VB 50 mA 75 mW -65 C to +150 C -65 C to +150 C 150 C 260 C for 5 seconds Class 1B
Description
Skyworks offers a series of low-cost devices in a SOT-143 package. This series includes low, medium and high barrier junctions as ring quads, crossover quads and bridge quads. Octoquad rings are also offered for high dynamic range applications. These devices are constructed utilizing Skyworks monolithic chip technology, assuring uniformity of electrical characteristics for each junction. The low capacitance of Skyworks ring and crossover quads is optimal for double balanced mixer applications covering wireless frequencies into C-band. The bridge quads are designated for modulators and frequency multiplier applications. These diodes are 100% DC tested and deliver tight parameter distribution, minimizing performance variability. They compliment Skyworks product line of Schottky singles and pairs available in SC-70, SC-79, SOD-323, SOT-23 and SOT-143 packages. Available in tape and reel for pick-and-place manufacturing.
Forward current - steady state (IF) Power dissipation (PD) Storage temperature (TST) Operating temperature (TOP) Junction temperature (TJ) Soldering temperature ESD human body model
Performance is guaranteed only under the conditions listed in the specifications table and is not guaranteed under the full range(s) described by the Absolute Maximum specifications. Exceeding any of the absolute maximum/minimum specifications may result in permanent damage to the device and will void the warranty.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
CAUTION: Although this device is designed to be as robust as possible, ESD (Electrostatic Discharge) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200040 Rev. F * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * February 23, 2006
1
DATA SHEET * SURFACE MOUNT SCHOTTKY QUAD MIXER DIODES
Electrical Specifications at 25 C (Per Junction)
CJ @0V 1 MHz (pF) 0.3-0.5
Barrier Low
VB @ 10 A (V) Min. 2
VF @ 1 mA (mV) 200-270
VF @ 1 mA (mV) Max. 10
RT(1) @ 10 mA () Max. 8
SOT-143 Ring Quad SMS3926-022 Marking: SE4 SMS3926-022LF Marking: XE4 Crossover Quad SMS3926-023 Marking: SE5 Bridge Quad SMS3929-021 Marking: SQE Octoquad Crossover Octoquad
SMS3926-023LF SMS3929-021LF Marking: XE5 Marking: XQE SMS3927-023 Marking: SJ5 SMS3930-021 Marking: SRE
Medium
2
0.3-0.5
310-370
10
8
SMS3927-023LF SMS3930-021LF Marking: XJ5 Marking: XRE High 4 0.3-0.5 520-580 10 8 SMS3928-023 Marking: SK5 SMS3931-021 Marking: SSE
SMS3928-023LF SMS3931-021LF Marking: XK5 Marking:XSE High DualJunction 8 0.3-0.5 1000-1200 20 16 SMS3940-026 Marking: STG SMS3940-026LF SMS3940-029LF Marking: XTG Marking: XTN
1. RT is the slope resistance. All parameters are based upon a single leg.
LF denotes lead (Pb)-free, RoHS-compliant packaging option as an alternative to our standard tin/lead (Sn/Pb) packaging. Innovation to GoTM Select Linear Products (indicated by ) now available for purchase online.
SPICE Model Parameters (Per Junction)
Parameter IS RS N TT CJ0 M EG XTI FC BV IBV VJ
All parameters are based upon a single junction.
Unit A s pF
SMS3926 SMS3929 2.5E-07 4 1.04 1E-11 0.42 0.32
SMS3927 SMS3930 1.3E-09 4 1.04 1E-11 0.39 0.37 0.69 2 0.5 3 1E-05 0.595
SMS3928 SMS3931 SMS3940 9E-13 4 1.04 1E-11 0.39 0.42 0.69 2 0.5 4 1E-05 0.8
eV
0.69 2 0.5
V A V
2 1E-05 0.495
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
February 23, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200040 Rev. F
DATA SHEET * SURFACE MOUNT SCHOTTKY QUAD MIXER DIODES
Typical Forward Voltage Characteristics at 25 C
Part Number SMS3926 SMS3927 SMS3928 SMS3940 VF @ 0.01 mA (mV) Typ. 100 206 423 862 VF @ 0.1 mA (mV) Typ. 165 271 488 989 VF @ 1 mA (mV) Typ. 232 338 555 1123 VF @ 10 mA (mV) Typ. 324 428 641 1304
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
SOT-143
0.110 (2.80 mm) Min. 0.120 (3.04 mm) Max. 0.020 (0.50 mm) Ref. 4 3 0.076 (1.92 mm) Ref.
Tape and Reel Information
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
0.083 (2.10 mm) Min. 0.104 (2.64 mm) Max. 1 0.068 (1.72 mm) Ref. 0.028 (0.70 mm) Ref. 0.030 (0.76 mm) Min. 0.035 (0.89 mm) Max. 0.047 (1.20 mm) Min. 0.055 (1.40 mm) Max. 0.003 (0.08 mm) Min. 8 Max. 0.008 (0.20 mm) Max. 0.012 (0.30 mm) Min. 0.020 (0.50 mm) Max. 2
0.031 (0.80 mm) Min. 0.047 (1.20 mm) Max.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min. 0.004 (0.15 mm) Max.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200040 Rev. F * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * February 23, 2006
3
DATA SHEET * SURFACE MOUNT SCHOTTKY QUAD MIXER DIODES
Copyright (c) 2002, 2003, 2004, 2005, 2006, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, "Breakthrough Simplicity" and "Innovation to Go" are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Thirdparty brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
February 23, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200040 Rev. F

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