SMBF3Z3.9 - SMBF3Z400
SURFACE MOUNT SILICON ZENER DIODES
VOLTAGE RANGE: 3.9 - 400V
POWER: 3.0Wa t t s
Features
!
!
Complete Voltage Range 3.9 to 400 Volts
High peak reverse power dissipation
High reliability
!
!
B
Low leakage current
C
E
Mechanical Data
SMBF
Dim Min Max Typ
! Case:SMBF , Molded Plastic
! Terminals: Solder Plated, Solderable
per MIL-STD-750, Method 2026
A
B
C
D
E
H
L
5.45 5.55 5.50
4.27 4.33 4.30
3.57 3.63 3.60
1.32 1.38 1.35
1.96 2.00 1.98
D
H
! Polarity: Cathode Band or Cathode Notch
! Marking: Type Number
! Weight: 0.0018 ounces,0.05grams
L
0.021 0.20
0.019
0.73 0.77 0.75
All Dimensions in mm
E
A
TA = 25ꢀC unless otherwise specified
Maximum Ratings
Rating
Symbol
Value
Unit
DC Power Dissipation at TL = 75 C (Note1)
PD
3.0
Watts
°
Maximum Forward Voltage at IF = 200 mA
Maximum Thermal Resistance Junction to Ambient Air (Note2)
Junction Temperature Range
VF
1.5
Volts
K / W
R JA
q
60
TJ
- 55 to + 175
- 55 to + 175
C
C
°
°
Storage Temperature Range
Ts
Note :
(1) TL = Lead temperature at 3/8 " (9.5mm) from body
(2) Valid provided that leads are kept at ambient temperature at a distance of 10 mm from case.
Fig. 1 Power Temperature Derating Curve
5
L = LEAD LENGTH
TO HEAT SINK
4
3
2
L = 1/8"
L = 3/8"
L = 1"
1
0
0
40
80
120
160
200
TL, LEAD TEMPERATURE ( C)
°
1 of 3
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