SMPZ39XB thru SMPZ3940B
www.vishay.com
Vishay General Semiconductor
Revision: 29-May-12
2
Document Number: 88482
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Notes
(1)
Mounted on PCB with 5.0 mm x 5.0 mm copper pad areas attached to each terminal
(2)
Mounted on minimum recommended pad layout
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
Z
Reverse Zener voltage at I
ZT
I
ZT
Reverse current
Z
ZT
Maximum Zener impedance at I
ZT
I
ZK
Reverse current
Z
ZK
Maximum Zener impedance at I
ZK
I
R
Reverse leakage current at V
R
VR Reverse voltage
I
F
Forward current
V
F
Forward voltage at I
F
I
ZM
Maximum DC Zener current
Zener Voltage Regulator
V
I
F
VZ VR
IR
IZT
VF
ELECTRICAL CHARACTERISTICS (T
A
= 25 °C unless otherwise noted)
PART
NUMBER
DEVICE
MARKING
CODE
ZENER VOLTAGE
RANGE
TEST CURRENT
MAXIMUM
ZENER
IMPEDANCE
MAXIMUM
REVERSE
LEAKAGE
CURRENT
MAXIMUM
ZENER
CURRENT
V
Z
at I
ZT
I
ZT
I
ZK
Z
ZT
AT I
ZT
Z
ZK
AT I
ZK
I
R
AT V
R
I
ZM
VmA μA V mA
MIN. NOM. MAX. MAX. MAX. MAX. MAX.
SMPZ3919B 19B 5.32 5.6 5.88 66.9 1.0 5.0 700 200 3.0 268
SMPZ3920B 20B 5.89 6.2 6.51 60.5 1.0 2.0 700 200 4.0 242
SMPZ3921B 21B 6.46 6.8 7.14 55.1 1.0 2.5 400 200 5.2 221
SMPZ3922B 22B 7.12 7.5 7.88 50.0 0.5 3.0 400 150 6.0 200
SMPZ3923B 23B 7.79 8.2 8.61 45.7 0.5 3.5 400 50 6.5 183
SMPZ3924B 24B 8.64 9.1 9.56 41.2 0.5 4.0 500 10 7.0 165
SMPZ3925B 25B 9.5 10 10.5 37.5 0.25 4.5 500 2.5 8.0 150
SMPZ3926B 26B 10.5 11 11.6 34.1 0.25 5.5 550 0.5 8.4 136
SMPZ3927B 27B 11.4 12 12.6 31.2 0.25 6.5 550 0.5 9.1 125
SMPZ3928B 28B 12.4 13 13.7 28.8 0.25 7.0 550 0.5 9.9 115
SMPZ3929B 29B 14.3 15 15.8 25 0.25 9.0 600 0.5 11.4 100
SMPZ3930B 30B 15.2 16 16.8 23.4 0.25 10.0 600 0.5 12.2 94
SMPZ3931B 31B 17.1 18 18.9 20.8 0.25 12.0 650 0.5 13.7 83
SMPZ3932B 32B 19.0 20 21 18.7 0.25 14.0 650 0.5 15.2 75
SMPZ3933B 33B 20.9 22 23.1 17.0 0.25 17.5 650 0.5 16.7 68
SMPZ3934B 34B 22.8 24 25.2 15.6 0.25 19.0 700 0.5 18.2 63
SMPZ3935B 35B 25.7 27 28.4 13.9 0.25 23.0 700 0.5 20.6 56
SMPZ3936B 36B 28.5 30 31.5 12.5 0.25 26.0 750 0.5 22.8 50
SMPZ3937B 37B 31.4 33 34.7 11.4 0.25 33.0 800 0.5 25.1 45
SMPZ3938B 38B 34.2 36 37.8 10.4 0.25 38.0 850 0.5 27.4 42
SMPZ3939B 39B 37.1 39 41 9.6 0.25 45.0 900 0.5 29.7 38
SMPZ3940B 40B 40.9 43 45.2 8.7 0.25 53.0 950 0.5 32.7 35
THERMAL CHARACTERISTICS (T
A
= 25 °C unless otherwise noted)
PARAMETER SYMBOL LIMIT UNIT
Typical thermal resistance, junction to lead
(1)
R
JL
50 °C/W
Typical thermal resistance, junction to ambient
(2)
R
JA
250 °C/W