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MMBD4448
General Description: The high breakdown voltage, fast switching speed and high forward conductance of this diode packaged in a SOT-23 Surface Mount package makes it desirable also as a general purpose diode. Features:
DISCRETE POWER AND SIGNAL TECHNOLOGIES
* 350 milliwatt Power Dissipation package. * High Breakdown Voltage, Fast Switching Speed. * Typical capacitance less than 1.5 picofarad. Ordering: * 7 inch reel (178 mm); 8 mm Tape; 3,000 units per reel.
High Conductance Fast Diode
Absolute Maximum Ratings* Sym
Tstg TJ PD R OJA Wiv IO IF if iF(surge)
TA = 25OC unless otherwise noted
Parameter
Storage Temperature Operating Junction Temperature Total Power Dissipation at TA = 25OC Linear Derating Factor from TA = 25OC Thermal Resistance Junction-to-Ambient Working Inverse Voltage Average Rectified Current DC Forward Current (IF) Recurrent Peak Forward Current (IF) Peak Forward Surge Current (IFSM) Pulse Width = 1.0 second Pulse Width = 1.0 microsecond
Value
-55 to +150 -55 to +150 350 2.8 357 75 200 600 700 1.0 2.0
Units
OC OC
W mW/OC OC/W V mA mA mA Amp Amp
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired
CONNECTION DIAGRAMS
3
PACKAGE TO-236AB (Low)
3
Top Mark: RAB
1 2 NC
1
TA = 25OC unless otherwise noted
2
Electrical Characteristics SYM BV IR
CHARACTERISTICS Breakdown Voltage 75 Reverse Leakage
MIN 100
MAX
UNITS V V IR IR
TEST CONDITIONS = 100 uA = 5.0 uA 20 V 20 V TA = 150 Deg C 75 V
25 50 5.0 620 720 1.0 2.0 4.0 2.5
nA uA uA mV V pF ns V
VR = VR = VR = IF IF
VF
Forward Voltage
= 5 mA = 100 mA 0.0 V, f = 1.0 MHz
CT Capacitance TRR Reverse Recovery Time VFM Peak Forward Recovery Voltage
(c) 1997 Fairchild Semiconductor Corporation
VR =
IF = 10 mA IR = 10 mA IRR = 1.0 Ma, RL = 100 ohms IF = 50 mA Pk Square Wave
Revision A; November 10, 1998
DISCRETE POWER AND SIGNAL TECHNOLOGIES
0.019 (0.483) 0.015 (0.381)
3
0.098 (2.489) 0.083 (2.108)
3 CHARACTERS MAX
0.055 (1.397) 0.047 (1.194)
1
2
0.024 (0.810) 0.018 (0.457)
0.040 (1.016) 0.035 (0.889) 0.080 (2.032) 0.070 (1.778) 0.120 (3.048) 0.110 (2.794)
LOW PROFILE (49)
0.041 (1.041) 0.035 (0.889)
LOW PROFILE (49)
0.0040 (0.102) 0.0005 (0.013)
0.0059 (0.150) 0.0035 (0.089)
SOT-23
Diode (pinout)
TO-236AB (LOW PROFILE)
22-August-1994
DISCRETE POWER AND SIGNAL TECHNOLOGIES
0.030" +/- 0.005" (0.762 +/- 0.127)
0.120" MINIMUM (3.048)
0.035" TYPICAL (0.889)
0.060" +/- 0.005" (1.524 +/- 0.127)
RECOMMENDED SOLDER PADS
FOR
SOT-23
DISCRETE POWER AND SIGNAL TECHNOLOGIES
0.031" +/- 0.005" (0.800 +/- 0.127)
0.039" +/- 0.005" (1.000 +/- 0.127)
0.099" +/- 0.005" (2.524 +/- 0.127 )
0.037" +/- 0.005" (0.950 +/- 0.127 )
0.060" +/- 0.005" (1.524 +/- 0.127)
RECOMMENDED SOLDER PADS
FOR
U.S. & European SOT-23 & Japanese SC-59
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
ACExTM CoolFETTM CROSSVOLTTM E2CMOSTM FACTTM FACT Quiet SeriesTM FAST(R) FASTrTM GTOTM HiSeCTM
DISCLAIMER
ISOPLANARTM MICROWIRETM POPTM PowerTrench QFETTM QSTM Quiet SeriesTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8
SyncFETTM TinyLogicTM UHCTM VCXTM
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. D

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