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SDM03MT40/A
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
* * * * * * Low Forward Voltage Drop Guard Ring Die Construction for Transient Protection Ideal for low logic level applications Low Capacitance Lead Free/RoHS Compliant (Note 3) "Green" Device, Note 4 and 5
Mechanical Data
* * * * * * * * * Case: SOT-26 Case Material: Molded Plastic, "Green" Molding Compound, Note 5. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020D Polarity: See Diagram Leads: Matte Tin (Lead Free), Solderable per MIL-STD-202, Method 208 Lead Free Plating (Matte Tin Finish annealed over Copper leadframe). Marking Information: See Page 3 Ordering Information: See Page 3 Weight: 0.016 grams (approximate)
Top View
SDM03MT40 Device Schematic
SDM03MT40A Device Schematic
Maximum Ratings
@TA = 25C unless otherwise specified Symbol VRRM VRWM VR VR(RMS) IFM IFSM Value 40 28 30 200 Unit V V mA mA
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 @8.3ms Single half sine-wave superimposed on rated load (JEDEDC method)
Thermal Characteristics
Characteristic Power Dissipation (Note 2) Thermal Resistance, Junction to Ambient Air Operating and Storage Temperature Range Symbol PD RJA TJ, TSTG Value 225 444 -40 to +125 Unit mW C/W C
Electrical Characteristics
Characteristic Reverse Breakdown Voltage (Note 1) Forward Voltage Drop (Note 1) Leakage Current (Note 1) Total Capacitance
Notes:
@TA = 25C unless otherwise specified Symbol V(BR)R VF IR CT Min 40 Typ 2 Max 370 1 Unit V mV A pF Test Condition IR = 10uA IF = 1mA VR = 10V VR = 1V f = 1.0 MHz
1. Short duration pulse test used to minimize self-heating effect. 2. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 3. No purposefully added lead. 4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php. 5. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. 6. Package is non-polarized. Parts may be on reel in orientation illustrated, 180 rotated, or mixed (both ways).
SDM03MT40/A
Document number: DS30372 Rev. 11 - 2
1 of 3 www.diodes.com
July 2008
(c) Diodes Incorporated
SDM03MT40/A
IF, INSTANTANEOUS FORWARD CURRENT (A) 1
100m
10m
1m
IR, INSTANTANEOUS REVERSE CURRENT (A)
100n
10n
1n
0
1.2 1.4 0.2 0.4 0.6 0.8 1.0 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 1 Typical Forward Characteristics
0
5
10
15
20
25
30
35
VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 2 Typical Reverse Characteristics
10 trr, REVERSE RECOVERY TIME (ns) 5
100
CT, TOTAL CAPACITANCE (pF)
10
2 1 0.5
1
0.2 0.1
0.1
0
25 5 20 10 15 VR, DC REVERSE VOLTAGE (V) Fig. 3 Total Capacitance vs. Reverse Voltage
20 8 12 24 28 16 IF, FORWARD CURRENT (mA) Fig. 4 Typical Reverse Recovery Time Characteristics 0 4
300
PD , POWER DISSIPATION (mW)
225
150
75
0
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (C) Fig. 5 Power Derating Curve
SDM03MT40/A
Document number: DS30372 Rev. 11 - 2
2 of 3 www.diodes.com
July 2008
(c) Diodes Incorporated
SDM03MT40/A Ordering Information
Part Number SDM03MT40-7-F SDM03MT40A-7-F
Notes:
(Notes 4 & 7) Case SOT-26 SOT-26 Packaging 3000/Tape & Reel 3000/Tape & Reel
7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
KSR
KSR = SDM03MT40 Product Type Marking Code (See Note 6) YM = Date Code Marking Y = Year ex: T = 2006 M = Month ex: 9 = September
KSK
KSK = SDM03MT40A Product Type Marking Code (See Note 6) YM = Date Code Marking Y =Year ex: T = 2006 M = Month ex: 9 = September
YM
Date Code Key Year Code Month Code
2006 T Jan 1
2007 U Feb 2 Mar 3
2008 V Apr 4
2009 W May 5
2010 X Jun 6
2011 Y Jul 7
YM
2012 Z Aug 8 Sep 9
2013 A Oct O
2014 B Nov N
2015 C Dec D
Package Outline Dimensions
A
BC
H K M
J
D
L
SOT-26 Dim Min Max Typ A 0.35 0.50 0.38 B 1.50 1.70 1.60 C 2.70 3.00 2.80 D 0.95 H 2.90 3.10 3.00 J 0.013 0.10 0.05 K 1.00 1.30 1.10 L 0.35 0.55 0.40 M 0.10 0.20 0.15 0 8 All Dimensions in mm
Suggested Pad Layout
E E
Z
G
C
Dimensions Value (in mm) Z 3.20 G 1.60 X 0.55 Y 0.80
C
Y X
E
2.40 0.95
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.
SDM03MT40/A
Document number: DS30372 Rev. 11 - 2
3 of 3 www.diodes.com
July 2008
(c) Diodes Incorporated

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