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DATA SHEET
SMS3925-079, SMS3925-079LF: Low Capacitance, High-Voltage Schottky Diode
Features
G G G G G
Silicon Schottky diode for detector applications Ultrasmall SC-79 package Designed for high-volume, low-cost applications Available in tape and reel packaging Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
Absolute Maximum Ratings
Characteristic Reverse voltage (VR) Forward current - 1 ms pulse (IF) Forward current - steady state (IF) Power dissipation (PD) Storage temperature (TST) Operating temperature (TOP) Junction temperature (TJ) Electrostatic Discharge (ESD) Human Body Model (HBM) Value 40 V 1A 50 mA 250 mW -65 C to +150 C -65 C to +150 C 150 C Class 0
Description
The SMS3925-079 is a 40 V, 0.6 pF RF Schottky diode designed for use as a level detector in wireless handsets and for generalpurpose switching applications. The SMS3925-079 is packaged in the surface mount miniature SC-79 package and is designated for low-cost, high-volume applications.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
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.
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
200132 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * March 29, 2007
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PRELIMINARY DATA SHEET * SMS3925-079, SMS3925-079LF
Electrical Specifications at 25 C
Parameter Reverse current (IR) Capacitance (CT)(1) Forward voltage (VF) VR = 40 V VR = 0 V, F = 1 MHz IF = 1 mA 0.57 0.48 0.62 Condition Frequency Min. Typ. Max. 10 0.6 0.67 Unit uA pF V
1. Capacitance is total capacitance (CT), junction capacitance (CJ) + package capacitance (CP).
Typical Performance Data
0.6 Single 0.5
Capacitance (pF)
SC-79 SMS3925-079 Marking: Cathode SMS3925-079LF Marking: Cathode LS = 0.7 nH
LF denotes lead (Pb)-free, RoHS-compliant packaging option as an alternative to our standard tin/lead (Sn/Pb) packaging.
0.4 0.3 0.2 0.1 0 0 5 10 15
SPICE Model Parameters
Parameter IS RS N TT CJ0 M EG XTI FC BV IBV VJ Units A s pF eV V A V SMS3925 1.8E-09 5.4 1.7 8E-11 0.36 0.24 0.69 2 0.5 58 1E-05 0.8
10 Max. 0.003 (0.07 mm) Min. 0.008 (0.20 mm) Max. 0.010 (0.25 mm) Min. 0.014 (0.35 mm) Max.
Reverse Voltage (V)
Total Capacitance vs. Reverse Voltage
SC-79
Cathode Indicator
1
0.006 (0.15 mm) Min. 0.028 (0.70 mm) Min. 0.035 (0.90 mm) Max.
2
0.060 (1.50 mm) Min. 0.067 (1.70 mm) Max. 0.043 (1.10 mm) Min. 0.051 (1.30 mm) Max. 0.020 (0.50 mm) Min. 0.028 (0.70 mm) Max. 10 Max.
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
Tape and Reel Information
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
March 29, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200132 Rev. D
PRELIMINARY DATA SHEET * SMS3925-079, SMS3925-079LF
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, and "Breakthrough Simplicity" are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party 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
200132 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * December 13,, 2005
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