HFM301 thru HFM308
Surface Mount Glass Passivated High Efficiency Rectifiers
Reverse Voltage 50 to 1000V Forward Current 3.0A
FEATURES
* Plastic package has Underwriters Laboratories
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Flammability Classification 94V-0
Ideally suited for use in very high frequency switching
power supplies, inverters and as free wheeling diodes
Ultrafast recovery time for high efficiency
Excellent high temperature switching
Soft recovery characteristics
Cavity-free glass passivated junction
High temperature soldering guaranteed:
260°C/10 seconds, 0.375" (9.5mm) lead length,
5 lbs. (2.3kg) tension
Mechanical Data
Case:
JEDEC DO-214AB/SMC, molded plastic over glass die
Terminals:
Plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
Weight:
0.21g
Handling precautin:None
We declare that the material of product compliance
with ROHS requirements
1.Electrical Characteristic
Maximum& Thermal Characteristics Ratings
at 25°C ambient temperature unless otherwise specified.
Parameter Symbol
Device marking code
Maximum repetitive peak reverse voltage
Maximum RSM voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
= 75°C
Peak forward surge current 8.3ms single half sine-
wave superimposed on rated load (JEDEC Method)
Maximum full load reverse current, full cycle
average,0.375"(9.5mm) lead lengths at T
A
= 55°C
Typical thermal resistance (Note 2)
Operating junction and storage temperature range
V
RRM
V
RSM
V
DC
IF(AV)
I
FSM
IR(AV)
RθJA
TJ,
TSTG
HFM
301
HFM
302
1.00
HFM
303
symbol
HFM
301
HFM
301
50
35
50
HFM
302
HFM
302
100
70
100
HFM
303
HFM
303
200
140
200
HFM
304
HFM
304
300
210
300
HFM
305
HFM
305
400
280
400
3.0
150
100
50
–50
to +150
HFM
306
HFM
306
600
420
600
HFM
307
HFM
307
800
560
800
HFM
308
HFM
308
1000
700
1000
Unit
V
V
V
A
A
µA
°C/W
°C
Electrical Characteristics Ratings
at 25°C ambient temperature unless otherwise specified.
Parameter Symbol
Maximum instantaneous forward voltage at 3.0A
Maximum DC reverse current TA = 25°C
at rated DC blocking voltage TA = 100°C
Typical reverse recovery time (Note 1)
Typical junction capacitance at 4.0V, 1MHz
NOTES:
1. IF = 0.5A, IR = 1.0A, IRR = 0.25A
symbol
V
F
IR
trr
CJ
50
17
HFM HFM
304
305
1.30
5.0
50
HFM
306
HFM HFM
307
308
1.85
Unit
V
µA
75
ns
PF
2. Mounted on Copper Leaf area of 1.57in2(40mm
2
).
HFM301 thru HFM308
2.Ratings and Characteristic Curves
( TA = 25°C unless otherwise noted )
Fig. 1
–
Forward Current Derating Curve
Average Forward Rectified Current (A)
60 Hz
Resistive or
Inductive Load
Average Forward Rectified Current (A)
Fig. 2
–
Maximum Non-repetitive Peak
Forward Surge Current
250
200
150
100
TJ = TJ max
8.3ms Single Half Sine-wave
(JEDEC Method)
3.0
1.5
50
0
1
10
Number of Cycles at 60Hz
100
0.375" (9.5mm) Lead Length
0
0
25
50 75 100 125 150 175
Ambient Temperature,
°C
Instantaneous Forward Current (A)
10
Fig 3.
–
Typical Instantaneous Forward
Characteristics
Fig 4.
–
Typical Reverse Characteristics
Instantaneous Reverse Current (µA)
100
Tj=125℃
1.0
10
Tj=75℃
0.1
1.0
0.01
TJ = 25°C
Pulse width = 300µs
1% Duty Cycle
0.1
Tj=25℃
0.001
0.8
1.0
1.2
1.4
1.6
1.8
Instantaneous Forward Voltage (V)
0.01
0
20
40
60
80
100
Percent of Rated Peak Reverse Voltage (%)
Fig 6.
–
Typical Junction Capacitance
Transient thermal impedance(°C/W)
Junction Capacitance (pF)
100
Fig 5.
–typical
transient thermal
impedance
20
10
10
1.0
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
0.1
0.01
0.1
1.0
10
t,Pulse duration,sec
100
1.0
0.1
1
10
Reverse Voltage (V)
100
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