®
LOW FORWARD VOLTAGE DROP
HIGH SURGE CURRENT CAPAB ILITY
APPLICATIONS
AC-DC POWER SUPPLIES AND
CONVERTERS
FREE WHEELING DIODES, etc.
DESCRIPTION
PFR850→856
FAST RECOVERY RECTIFIER DIODE
PRELIMINARY DATASHEET
Their high efficiency and hig h reliability comb ined
with small size and low cost make these fast recovery rectifier diode very attractive components for
DO-201AD
(Plastic)
many demanding applications.
ABSOLUTE RATINGS
(limiting values)
Symbol Parameter Value Unit
I
FRM
I
F (AV)
I
FSM
Repetive peak forward current tp < 20µs
Average forward current* Ta = 90° C
δ
= 0.5
Surge non repetitive forward current tp = 10ms
100 A
3A
100 A
Sinusoidal
P
tot
T
stg
T
T
L
Power dissipation * Ta = 90° C 3.5 W
Storage and junction temperature range - 40 to + 175
j
Maximum lead temperature for soldering during 10s at
- 40 to + 175
230 °C
4mn from case
PFR
Symbol Parameter
850 851 852 854 856
°C
Unit
V
RRM
V
RSM
August 1998 - Ed: 2A
Repetitive peak revrse voltage 50 100 200 400 600 V
Non repetitive peak reverse voltage 75 150 250 450 650 V
1/3
PFR850 -> 856
THERMAL RESISTANCE
Symbol Parameter Value Unit
R
th (j - a)
* On infinite heatsink with 10mm lead lengh.
Junction-ambient* 25 °C/ W
STATIC ELECTRICAL CHARACT E RISTICS
Synbol Test Conditions Min. Typ. Max. Unit
I
R
V
F
Tj = 25°C VR = V
= 100°C 250
T
j
RRM
Tj = 25°C IF = 3A 1.25 V
10
RECOVERY CHARACTERISTICS
Symbol Test Conditions Min. Typ. Max. Unit
PRF 850→854
150 ns
I
t
RM
rr
Tj = 25°C IF = 1A
= 30V diF/dt = - 25A/µs PRF 856 200
V
R
Tj = 25°C IF = 1A 2 A
= 30V diF/dt = -25A/µs
V
R
µ
A
2/3
PACKAGE MECHANICAL DATA
DO-201AD (Plastic)
BA
PFR850 -> 856
B
ØC
note 1
E
ØD ØD
DIMENSIONS
REF.
Millimeters Inches
Min. Max. Min. Max.
A 9.50 0.374
B 25.40 1.000
∅ C 5.30 0.209
∅ D 1.30 0.051
note 1
E
note 2
NOTES
1 - The lead diameter ∅ D is not controlled over zone E
2 - The minimum axial lengh within which the device may be
placed with its leads bent at right angles is 0.59"(15 mm)
E 1.25 0.049
Marking
: type number, white band indicate cathode
Cooling method: by convection (method A)
Weight: 1g
Date code
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsIbility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or other wise under any patent or patent right s of STMicroelectronics . Specifications mentioned in this publicat ion are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroel ect roni cs products ar e not authorized for use as critical c om ponents in life support devi ces or systems wi thout express wr i tten approval of STMicroelectronics.
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© 1998 STMicroelectronics - Printed in Italy - All rights reserved.
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