FEATURES
♦ Silicon Planar Power Zener Diodes
♦ Standard Zener voltage tolerance is ±5%
tolerance with a “B” suffix. Other
tolerances are available upon request
♦ These diodes are also available in Mini-MELF case with-
the type designation ZMM5225 ... ZMM5267, DO-35
case with the type designation 1N5225 ... 1N5267 and
SOD-123 case with the type designation MMSZ5225 ...
MMSZ5267
MECHANICAL DATA
Case: SOT-23 Plastic Package
Weight: approx. 0.008 g
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOL VALUE UNIT
Zener Current see Table “Characteristics”
Power Dissipation at T
A
= 25°C
P
tot
225
(1)
mW
300
(2)
Maximum Junction Temperature T
j
150 °C
Storage Temperature Range T
S
–65 to +175 °C
SYMBOL MIN. TYP. MAX. UNIT
Thermal Resistance
R
ΘJA
– – 556
(1)
°C/W
Junction to Ambient Air
Forward Voltage at IF= 10 mA V
F
– – 0.9 Volts
NOTES:
(1) On FR-5 board using recommended solder pad layout.
(2) On alumina substrate.
1/21/99
Dimensions in inches and (millimeters)
SOT-23
MMBZ5225 THRU MMBZ5267
ZENER DIODES
NEW PRODUCT NEW PRODUCT NEW PRODUCT
.122 (3.1)
.118 (3.0)
.016 (0.4)
3
1
.037(0.95)
.016 (0.4) .016 (0.4)
2
.037(0.95)
Top View
)
.056 (1.43
max. .004 (0.1)
)
.052 (1.33
.007 (0.175)
.005 (0.125)
.045 (1.15)
.102 (2.6)
.094 (2.4)
.037 (0.95)
MMBZ5225 18E 3.0 20 30 1600 -0.075 50 1.0
MMBZ5226 8A 3.3 20 28 1600 -0.070 25 1.0
MMBZ5227 8B 3.6 20 24 1700 -0.065 15 1.0
MMBZ5228 8C 3.9 20 23 1900 -0.060 10 1.0
MMBZ5229 8D 4.3 20 22 2000 -0.055 5 1.0
MMBZ5230 8E 4.7 20 19 1900 ±0.030 5 2.0
MMBZ5231 8F 5.1 20 17 1600 ±0.030 5 2.0
MMBZ5232 8G 5.6 20 11 1600 +0.038 5 3.0
MMBZ5233 8H 6.0 20 7 1600 +0.038 5 3.5
MMBZ5234 8J 6.2 20 7 1000 +0.045 5 4.0
MMBZ5235 8K 6.8 20 5 750 +0.050 3 5.0
MMBZ5236 8L 7.5 20 6 500 +0.058 3 6.0
MMBZ5237 8M 8.2 20 8 500 +0.062 3 6.5
MMBZ5238 8N 8.7 20 8 600 +0.065 3 6.5
MMBZ5239 8P 9.1 20 10 600 +0.068 3 7.0
MMBZ5240 8Q 10 20 17 600 +0.075 3 8.0
MMBZ5241 8R 11 20 22 600 +0.076 2 8.4
MMBZ5242 8S 12 20 30 600 +0.077 1 9.1
MMBZ5243 8T 13 9.5 13 600 +0.079 0.5 9.9
MMBZ5244 8U 14 9.0 15 600 +0.082 0.1 10
MMBZ5245 8V 15 8.5 16 600 +0.082 0.1 11
MMBZ5246 8W 16 7.8 17 600 +0.083 0.1 12
MMBZ5247 8X 17 7.4 19 600 +0.084 0.1 13
MMBZ5248 8Y 18 7.0 21 600 +0.085 0.1 14
MMBZ5249 8Z 19 6.6 23 600 +0.086 0.1 14
MMBZ5250 81A 20 6.2 25 600 +0.086 0.1 15
MMBZ5251 81B 22 5.6 29 600 +0.087 0.1 17
MMBZ5252 81C 24 5.2 33 600 +0.087 0.1 18
MMBZ5253 81D 25 5.0 35 600 +0.089 0.1 19
MMBZ5254 81E 27 4.6 41 600 +0.090 0.1 21
MMBZ5255 81F 28 4.5 44 600 +0.091 0.1 21
MMBZ5256 81G 30 4.2 49 600 +0.091 0.1 23
MMBZ5257 81H 33 3.8 58 700 +0.092 0.1 25
MMBZ5258 81J 36 3.4 70 700 +0.093 0.1 27
MMBZ5259 81K 39 3.2 80 800 +0.094 0.1 30
MMBZ5260 18F 43 3.0 93 900 +0.095 0.1 33
MMBZ5261 81M 47 2.7 105 1000 +0.095 0.1 36
MMBZ5262 81N 51 2.5 125 1100 +0.096 0.1 39
MMBZ5263 81P 56 2.2 150 1300 +0.096 0.1 43
MMBZ5264 81Q 60 2.1 170 1400 +0.097 0.1 46
MMBZ5265 81R 62 2.0 185 1400 +0.097 0.1 47
MMBZ5266 81S 68 1.8 230 1600 +0.097 0.1 52
MMBZ5267 81T 75 1.7 270 1700 +0.098 0.1 56
MMBZ5225 THRU MMBZ5267
ELECTRICAL CHARACTERISTICS
Type
Marking
Code
Nominal
Zener
voltage
(3)
at
I
ZT
VZ(V)
Test
current
I
ZT
(mA)
Maximum Zener
impedance
(2)
Typical
temperture
coefficient
α
VZ
(%/K)
Maximum
reverse leakage current
Test Voltage
I
R
V
R
(µA)
(Volts)
at
I
ZT
ZZT(Ω)
at
I
ZK
= 0.25 mA
Z
ZK
(Ω)
NOTES:
(1) The Zener Impedance is derived from the 1kHZAC voltage which results when an AC current having an
RMS value equal to 10% of the Zener current (I
ZT
or IZK) is superimposed on IZTor IZK.
Zener Impedance is measured at two points to insure a sharp knee on the breakdown curve
and to eliminate unstable units.
(2) Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature.
(3) Measured with a pulse test current.
Ratings at 25°C ambient temperature unless otherwise specified.
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