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SPICE MODEL: SDM20U40
Lead-free Green
SDM20U40
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
* * * * * * * * * * * * * * * *
Low Forward Voltage Drop Guard Ring Construction for Transient Protection Negligible Reverse Recovery Time Low Reverse Capacitance Ultra-Small Surface Mount Package Lead Free By Design/RoHS Compliant (Note 1) "Green" Device, Note 3 and 4 Qualified to AEC-Q101 Standards for High Reliability
A B
CATHODE MARK
SOD-523 Dim A B Min 1.50 1.10 0.25 0.70 0.10 0.55 Max 1.70 1.30 0.35 0.90 0.20 0.65
S4
Mechanical Data
Case: SOD-523 Case Material: Molded Plastic, "Green" Molding Compound, Note 4. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020C Terminal Connections: Cathode Band Terminals: Finish - Matte Tin annealed over Alloy 42 leadframe. Solderable per MIL-STD-202, Method 208 Marking Code: S4 Ordering Information: See Last Page Weight: 0.002 grams (approximate)
MARKING CODE
C D E G
C D
E G
All Dimensions in mm
Maximum Ratings
@ TA = 25C unless otherwise specified Symbol VRRM VRWM VR VR(RMS) IFM @ t 1.0s IFSM Tj, TSTG Value 40 28 250 1.0 -65 to +125 Unit V V mA A C
Characteristic Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Forward Continuous Current (Note 2) Non-Repetitive Peak Forward Surge Current Operating and Storage Temperature Range
Thermal Characteristics
Characteristic Power Dissipation (Note 2)
@ TA = 25C unless otherwise specified Symbol Pd RqJA Value 150 667 Unit mW C/W
Thermal Resistance, Junction to Ambient Air (Note 2)
Note:
1. No purposefully added lead. 2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 3. Diodes Inc.'s "Green" Policy can be found on our website at http://www.diodes.com/products/lead_free/index.php. 4. Product manufactured with date code 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
DS30393 Rev. 5 - 2
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SDM20U40
a Diodes Incorporated
Electrical Characteristics
Characteristic Reverse Breakdown Voltage (Note 5) Forward Voltage Drop Peak Reverse Current (Note 5) Total Capacitance Reverse Recovery Time
Note:
@ TA = 25C unless otherwise specified Symbol V(BR)R VF IR CT trr Min 40 3/4 3/4 3/4 3/4 Typ 3/4 3/4 3/4 50 10 Max 3/4 0.37 0.60 5 1 3/4 3/4 Unit V V mA mA pF ns Test Conditions IR = 10mA IF = 20mA IF = 200mA VR = 30V VR = 10V VR = 0V, f = 1.0MHz IF = IR = 200mA, Irr = 0.1 x IR, RL = 100W
5. Short duration pulse test used so as to minimize self-heating effect.
200
IF, INSTANTANEOUS FORWARD CURRENT (mA)
1000
PD, POWER DISSIPATION (mW)
100
TA = 125C
150
10
TA = 75C
100
1
0.1
TA = 25C
50
0.01
TA = -25C
0 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE ( C) Fig. 1 Derating Curve
0.001 0 200 400 600 800 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics
1000
TA = 125C
100
f = 1MHz
100
TA = 75C
CT, TOTAL CAPACITANCE (pF)
10
10
1
TA = 25C
0.1
TA = -25C
1.0
0.01
0.001 1 10 20 30 40 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
0.1 0 10 20 30 40 VR, REVERSE VOLTAGE (V) Fig. 4 Typ. Total Capacitance vs Reverse Voltage
DS30393 Rev. 5 - 2
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SDM20U40
Ordering Information
Device SDM20U40-7
Note:
(Note 4 & 6) Packaging SOD-523 Shipping 3000/Tape & Reel
4. Product manufactured with date code 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. 6. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated.
DS30393 Rev. 5 - 2
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SDM20U40

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