POWER DISCRETES
Description
Quick reference data
V
R
= 200 - 1000V
I
F =
5.0A
t
rr
= 2µS
V
F
= 1.0V
1N5550 THRU 1N5554
3SM2 THRU 3SM0
Axial Leaded Hermetically Sealed
Standard Recovery Rectifier Diode
Features
Low reverse leakage current
Hermetically sealed in fused metal oxide
Good thermal shock resistance
Low forward voltage drop
Avalanche capability
These products are qualified to MIL-PRF-19500/420.
They can be supplied fully released as JAN, JANTX,
JANTXV, and JANS versions.
Absolute Maximum Ratings
Electrical specifications @ T
A
= 25°C unless otherwise specified.
Symbol
Working Reverse Voltage
Average Forward Current
@ 55°C in free air, lead length
0.375"
Repetitive Surge Current
@ 55°C in free air, lead length
0.375"
Non-Repetitive Surge Current
(tp = 8.3mS @ V
R
& T
JMAX
)
(tp = 8.3mS, @ V
R
& 25°C)
Storage Temperature Range
V
RWM
I
F(AV)
1N 5550
3SM2
200
1N 5551
3SM4
400
1N 5552
3SM6
600
5.0
1N 5553
3SM8
800
1N 5554
3SM0
1000
Units
V
A
I
FRM
25
A
I
FSM
T
STG
100
150
-65 to +175
A
°C
Revision: September 22, 2008
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1N5550 THRU 1N5554
3SM2 THRU 3SM0
POWER DISCRETES
Electrical Specifications
Symbol
Average Forward Current (sine wave)
- max. T
A
= 55°C
- max. L = 3/8"; T
L
= 55°C
I
2
t for fusing (t = 8.3mS) max
Forward Voltage Drop max.
@ I
F
= 3.0A, T
j
= 25°C
Reverse Current max.
@ V
RWM
, Tj = 25°C
@ V
RWM
, Tj = 125°C
Reverse Recovery Time max.
0.5A I
F
to 1.0A I
RM
recovers to 0.25A I
RM(REC)
Junction Capacitance typ.
@ V
R
= 5V, f = 1MHz
1N 5550
3SM2
1N 5551
3SM4
1N 5552
3SM6
3.0
5.0
42
1.0
1.0
60
2.0
92
1N 5553
3SM8
1N 5554
3SM0
Units
I
F(AV)
I
F(AV)
I
2
t
V
F
I
R
I
R
trr
Cj
A
A
2
S
V
µA
µS
pF
Thermal Characteristics
Symbol
Thermal Resistance-Junction to Lead
Lead length = 0.375"
Lead length = 0.0"
Thermal Resistance-Junction to
Ambient on 0.06" thick pcb. 1 oz.
co p p e r
1N 5550
3SM2
1N 5551
3SM4
1N 5552
3SM6
22
4
47
1N 5553
3SM8
1N 5554
3SM0
Units
R
θ
JL
R
θ
JL
R
θ
JA
°C/W
°C/W
Typical Characteristics
Fig 1. Typical junction capacitance as a function of reverse voltage.
2008 Semtech Corp.
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1N5550 THRU 1N5554
3SM2 THRU 3SM0
POWER DISCRETES
Typical Characteristics
Fig 2. Forward voltage drop as a function of forward current
Fig 3. Maximum power versus lead temperature
Fig 4. Forward power dissipation as a function of forward
current, for sinusoidal operation.
Fig 5. Maximum ratings for capacitive loads.
2008 Semtech Corp.
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1N5550 THRU 1N5554
3SM2 THRU 3SM0
POWER DISCRETES
Ordering Information
Part Number
1N5550
1N5551
1N5552
1N5553
1N5554
3SM2
3SM4
3SM6
3SM8
3SM0
Description
Axial leaded hermetically sealed
(1)
Note:
(1) Available in bulk and tape and reel packaging. Please
consult factory for quantities.
Outline Drawing
G4
Dimensions
Inches
DIM
A
B
C
D
E
N
Millimeters
MIN
2.92
22.86
3.3
-
0.92
MAX
4.57
33.02
7.62
0.8
1.07
Note
MIN
0.115
0.9
0.13
-
0.036
MAX
0.18
1.3
0.3
0.03
0.042
-
-
-
1
-
Note:
(1) Lead diameter uncontrolled over this region.
Weight = 0.039oz
Contact Information
Semtech Corporation
Power Discretes Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
2008 Semtech Corp.
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