BZT55B2V4-BZT55B75
500mW, 2% Tolerance SMD Zener Diode
Small Signal Diode
VZ Tolerance Selection of ±2%
Moisture sensitivity level 1
Matte Tin(Sn) lead finish with Nickel(Ni) underplate
Pb free version and RoHS compliant
Min Max Min Max
Case : QUADRO Mini-MELF Package (JEDEC DO-213) 3.30 3.70 0.130 0.146
High temperature soldering guaranteed : 270°C/10s 1.40 1.60 0.055 0.063
0.25 0.40 0.010 0.016
1.25 1.40 0.049 0.055
2.5Kpcs / 7" Reel
Maximum Ratings
IF=10mA
Notes:1. Valid provided that electrodes are kept at ambient temperature
VBR : Voltage at IZK
IZK : Test current for voltage VBR
ZZK : Dynamic impedance at IZK
IZT : Test current for voltage VZ
VZ: Voltage at current IZT
ZZT : Dynamic impedance at IZT
IZM : Maximum steady state current
VZM : Voltage at IZM
Maximum Ratings and Electrical Characteristics
Features
Mechanical Data
Unit (mm)
Wide zener voltage range selection : 2.4V to 75V
Unit (inch)
Dimensions
Ordering Information
Part No.
QUADRO Mini-MELF
BZT55BXXX L0 QUADRO Mini-MELF
Weight : 29 ± 2.5 mg
Package Packing
Polarity : Indicated by cathode band
All External Surfaces are Corrosion Resistant and
Leads are Readily Solderable
Power Dissipation
Symbol
10Kpcs / 13" Reel
Rating at 25°C ambient temperature unless otherwise specified.
Type Number Units
mW
BZT55BXXX L1
-65 to + 175
Value
500
Junction and Storage Temperature Range
PD
VF
Zener I vs. V Characteristics
V
Thermal Resistance (Junction to Ambient) (Note 1) RθJA 500 °C/W
Forward Voltage 1.0
TJ, TSTG °C
QUADRO Mini-MELF (LS34)
HERMETICALLY SEALED GLASS
1.80 0.071
A
B
C
D
E
Voltage
Current
IF
VF
VR
IR
VBR
IZK
VZ
IZT
VZM
IZM
Forward RegionLeakage RegionBreakdownRegion
C
B
A
D
E
Version : E09
BZT55B2V4-BZT55B75
500mW, 2% Tolerance SMD Zener Diode
Small Signal Diode
Electrical Characteristics
Ta = 25°C unless otherwise noted
VF Forward Voltage = 1.0V Maximum @ IF = 10 mA for all part numbers
Nom Min Max
BZT55B2V4 2.4 2.35 2.45 5 85 1 600 50 1
BZT55B2V7 2.7 2.65 2.75 5 85 1 600 10 1
BZT55B3V0 3.0 2.94 3.06 5 85 1 600 4 1
BZT55B3V3 3.3 3.23 3.37 5 85 1 600 2 1
BZT55B3V6 3.6 3.53 3.67 5 85 1 600 2 1
BZT55B3V9 3.9 3.82 3.98 5 85 1 600 2 1
BZT55B4V3 4.3 4.21 4.39 5 75 1 600 1 1
BZT55B4V7 4.7 4.61 4.79 5 60 1 600 0.5 1
BZT55B5V1 5.1 5.00 5.20 5 35 1 550 0.1 1
BZT55B5V6 5.6 5.49 5.71 5 25 1 450 0.1 1
BZT55B6V2 6.2 6.08 6.32 5 10 1 200 0.1 2
BZT55B6V8 6.8 6.66 6.94 5 8 1 150 0.1 3
BZT55B7V5 7.5 7.35 7.65 5 7 1 50 0.1 5
BZT55B8V2 8.2 8.04 8.36 5 7 1 50 0.1 6.2
BZT55B9V1 9.1 8.92 9.28 5 10 1 50 0.1 6.8
BZT55B10 10 9.80 10.20 5 15 1 70 0.1 7.5
BZT55B11 11 10.78 11.22 5 20 1 70 0.1 8.2
BZT55B12 12 11.76 12.24 5 20 1 90 0.1 9.1
BZT55B13 13 12.74 13.26 5 26 1 110 0.1 10
BZT55B15 15 14.70 15.30 5 30 1 110 0.1 11
BZT55B16 16 15.68 16.32 5 40 1 170 0.1 12
BZT55B18 18 17.64 18.36 5 50 1 170 0.1 13
BZT55B20 20 19.60 20.40 5 55 1 220 0.1 15
BZT55B22 22 21.56 22.44 5 55 1 220 0.1 16
BZT55B24 24 23.52 24.48 5 80 1 220 0.1 18
BZT55B27 27 26.46 27.54 5 80 1 220 0.1 20
BZT55B30 30 29.40 30.60 5 80 1 220 0.1 22
BZT55B33 33 32.34 33.66 5 80 1 220 0.1 24
BZT55B36 36 35.28 36.72 5 80 1 220 0.1 27
BZT55B39 39 38.22 39.78 2.5 90 0.5 500 0.1 28
BZT55B43 43 42.14 43.86 2.5 90 0.5 600 0.1 32
BZT55B47 47 46.06 47.94 2.5 110 0.5 700 0.1 35
BZT55B51 51 49.98 52.02 2.5 125 0.5 700 0.1 38
BZT55B56 56 54.88 57.12 2.5 135 0.5 1000 0.1 42
BZT55B62 62 60.76 63.24 2.5 150 0.5 1000 0.1 47
BZT55B68 68 66.64 69.36 2.5 160 0.5 1000 0.1 51
BZT55B75 75 73.50 76.50 2.5 170 0.5 1000 0.1 56
Notes:
1. The Zener Volta
g
e
(
V
Z
)
is tested under
p
ulse condition of 10ms.
2. The device numbers listed have a standard tolerance on the nominal zener volta
g
e of ±2
%
.
ZZT @ IZT(Ω)
Max
4. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value
equal to 10% of the DC zener current ( IZT or IZK) is superimposed to IZT or IZK.
ZZK @ IZK(Ω)
Max
VZ @ IZT (Volt) IR @ VR(μA)
Max
IZK(mA)IZT(mA) VR(V)
3. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and
tighter voltage tolerances, contact your nearest Taiwan semiconductor representative.
Part Number
Version : E09
BZT55B2V4-BZT55B75
500mW, 2% Tolerance SMD Zener Diode
Small Signal Diode
Rating and Sharacteristic Curves
FIG 1 Typical Forward Characteristics
1
10
100
1000
0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
Forward Current (mA)
0
0
1
10
100
0123456789101112
Zener Current (mA)
Ta=25°C
0
100
200
300
400
500
600
0 40 80 120 160 200
Power Dissipation (mW)
FIG 3 Zener Breakdown Characteristics
0
0
1
10
100
10 20 30 40 50 60 70 80
Zener Current (mA)
Ta=25°C
Ta=150°C
Ta=25°C
FIG 6 Effect of Zener Voltage on Impedence
1
10
100
1000
1 10 100
Dynamic Impedence (Ώ)
FIG 5 Typical Capacitance
1
10
100
1000
1 10 100
Capacitance(pF)
Bias at 50% of VZ(Nom)
1V Bias
Iz=20m
Iz=5mA
Iz=1mA
Zener Voltage (V)
Forward Voltage (V)
FIG 2 Zener Breakdown Characteristics
Zener Voltage (V)
FIG 4 Admissible Power Disspation Curve
Zener Voltage (V) Ambient Tempeture (°C)
Zener Voltage (V)
Version : E09
