APT15S20KCT
Vr
+18V
0V
D.U.T.
30µH
trr/Qrr
Waveform
di
F
/dt Adjust
APT20M36BLL
PEARSON 2878
CURRENT
TRANSFORMER
Figure 9. Diode Test Circuit
1
2
3
4
I
F
- Forward Conduction Current
di
F
/dt - Rate of Diode Current Change Through Zero Crossing.
I
RRM
- Maximum Reverse Recovery Current.
Zero
1
4
5
3
2
0.25 IRRM
trr -
Reverse
Recovery
Time, measured from zero crossing where diode
current goes from positive to negative, to the point at which the straight
line through I
RRM
and 0.25 I
RRM
passes through zero.
Qrr - Area Under the Curve Defined by I
RRM
and trr.
5
Figure 10, Diode Reverse Recovery Waveform and Definitions
TO-220 Package Outline
10.66 (.420)
9.66 (.380)
5.33 (.210)
4.83 (.190)
6.85 (.270)
5.85 (.230)
16.51 (.650)
14.23 (.560)
3.42 (.135)
2.54 (.100)
4.08 (.161) Dia.
3.54 (.139)
1.39 (.055)
0.51 (.020)
Cathode
6.35 (.250)
MAX.
14.73 (.580)
12.70 (.500)
0.50 (.020)
0.41 (.016)
Anode
Cathode
Anode
1-2004
2.92 (.115)
2.04 (.080)
4.82 (.190)
3.56 (.140)
1.01 (.040) 3-Plcs.
0.38 (.015)
2.79 (.110)
2.29 (.090)
5.33 (.210)
4.83 (.190)
1.77 (.070) 3-Plcs.
1.15 (.045)
053-6037 Rev B
Dimensions in Millimeters and (Inches)
APT’s products are covered by one or more of U.S.patents 4,895,810 5,045,903 5,089,434 5,182,234 5,019,522
5,262,336 6,503,786 5,256,583 4,748,103 5,283,202 5,231,474 5,434,095 5,528,058 and foreign patents. US and Foreign patents pending. All Rights Reserved.
ADPOW [ ADVANCED POWER TECHNOLOGY ]
