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USM21PT Datasheet, PDF (1/2 Pages) Chenmko Enterprise Co. Ltd. – SUPER FAST SILICON RECTIFIER
CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT GLASS PASSIVATED
SUPER FAST SILICON RECTIFIER
VOLTAGE RANGE 50 - 1000 Volts CURRENT 2.0 Amperes
USM21PT
THRU
USM28PT
FEATURES
* For surface mounted applications
* Low profile package
* Built-in strain relief
* Superfast recovery times for high efficiency
* Metallurgically bonded construction
* Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
* Glass passivated junction
* High temperature soldering guaranteed :
260oC/10 seconds at terminals
MECHANICAL DATA
Case: JEDEC SMA molded plastic
Terminals: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity: Indicated by cathode band
Weight: 0.002 ounces, 0.064 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 HZ, resistive or inductive load.
For capacitive load, derate current by 20%.
SMA
0.110(2.80)
0.094(2.40)
(1)
0.090(2.30)
0.075(1.90)
0.060(1.52)
0.030(0.76)
0.181(4.60)
0.165(4.20)
0.065(1.65)
0.049(1.25)
(2)
0.012(0.310)
0.006(0.150)
0.212(5.40)
0.189(4.80)
0.008 (0.203)(max)
Dimensions in inches and (millimeters)
SMA
MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted )
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current TL = 100oC
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
SYMBOL
VRRM
VRMS
VDC
USM21PT USM22PT USM23PT USM24PT USM25PT USM26PT USM27PT USM28PT UNITS
50 100 200 300 400 600 800 1000 Volts
35 70 140 210 280 420 560 700 Volts
50 100 200 300 400 600 800 1000 Volts
IO
2.0
Amps
IFSM
50
Amps
Typical Junction Capacitance (Note 1)
CJ
30
20
pF
Operating and Storage Temperature Range
TJ, TSTG
-65 to +150
oC
ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted )
CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 2.0 A DC
SYMBOL
VF
Maximum DC Reverse Current
at Rated DC Blocking Voltage
@ TA = 25oC
IR
@ TA = 100oC
USM21PT USM22PT USM23PT USM24PT USM25PT USM26PT USM27PT USM28PT UNITS
0.95
1.27
1.75
Volts
5.0
uAmps
100
uAmps
Maximum Reverse Recovery Time (Note 2)
trr
35
45
nSec
NOTES : 1. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts
2. Test Conditions : IF = 0.5 A, IR = -1.0 A, IRR = -0.25 A
2002-5