BZX84C2V4ET1 Series
Zener Voltage Regulators
225 mW SOT−23 Surface Mount
This series of Zener diodes is offered in the convenient, surface
mount plastic SOT−23 package. These devices are designed to provide
voltage regulation with minimum space requirement. They are well
suited for applications such as cellular phones, hand held portables,
and high density PC boards.
Specification Features
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3
Cathode
1
Anode
•
•
•
•
•
•
•
225 mW Rating on FR−4 or FR−5 Board
Zener Breakdown Voltage Range − 2.4 V to 75 V
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
ESD Rating of Class 3 (>16 kV) per Human Body Model
Peak Power − 225 W (8
X
20
ms)
Pb−Free Packages are Available
3
1
2
Mechanical Characteristics
CASE:
Void-free, transfer-molded, thermosetting plastic case
FINISH:
Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
SOT−23
CASE 318
STYLE 8
MARKING DIAGRAM
260°C for 10 Seconds
POLARITY:
Cathode indicated by polarity band
FLAMMABILITY RATING:
UL 94 V−0
1
xxx M
G
G
MAXIMUM RATINGS
Rating
Peak Power Dissipation @ 20
ms
(Note 1)
@ T
L
≤
25°C
Total Power Dissipation on FR−5 Board,
(Note 2) @ T
A
= 25°C
Derated above 25°C
Thermal Resistance, Junction−to−Ambient
Total Power Dissipation on Alumina Sub-
strate, (Note 3) @ T
A
= 25°C
Derated above 25°C
Thermal Resistance, Junction−to−Ambient
Junction and Storage Temperature Range
Symbol
P
pk
P
D
225
1.8
R
qJA
P
D
300
2.4
R
qJA
T
J
, T
stg
417
−65 to
+150
mW
mW/°C
°C/W
°C
556
mW
mW/°C
°C/W
Max
225
Unit
W
xxx
= Device Code
M
= Date Code*
G
= Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation may vary depending
upon manufacturing location.
ORDERING INFORMATION
Device
BZX84CxxxET1
BZX84CxxxET1G
BZX84CxxxET3
BZX84CxxxET3G
Package
SOT−23
SOT−23
(Pb−Free)
SOT−23
Shipping
†
3000/Tape & Reel
3000/Tape & Reel
10,000/Tape & Reel
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. Nonrepetitive current pulse per Figure 9.
2. FR−5 = 1.0 X 0.75 X 0.62 in.
3. Alumina = 0.4 X 0.3 X 0.024 in, 99.5% alumina.
SOT−23 10,000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
©
Semiconductor Components Industries, LLC, 2005
1
August, 2005 − Rev. 5
Publication Order Number:
BZX84C2V4ET1/D
BZX84C2V4ET1 Series
TYPICAL CHARACTERISTICS
8
7
6
5
4
3
2
1
0
V
Z
@ I
ZT
TYPICAL T
C
VALUES
100
θ
VZ , TEMPERATURE COEFFICIENT (mV/ C)
°
TYPICAL T
C
VALUES
θ
VZ , TEMPERATURE COEFFICIENT (mV/ C)
°
V
Z
@ I
ZT
10
−1
−2
−3
2
3
4
5
6
7
8
9
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
11
12
1
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
100
Figure 1. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
Figure 2. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
1000
Z ZT, DYNAMIC IMPEDANCE (
Ω
)
I
Z
= 1 mA
T
J
= 255C
I
Z(AC)
= 0.1 I
Z(DC)
f = 1 kHz
1000
IF, FORWARD CURRENT (mA)
75 V (MMBZ5267BLT1)
91 V (MMBZ5270BLT1)
100
5 mA
20 mA
10
100
10
150°C
1
1
10
V
Z
, NOMINAL ZENER VOLTAGE
100
1
0.4
0.5
75°C 25°C
0°C
1.1
1.2
0.6
0.7
0.8
0.9
1.0
V
F
, FORWARD VOLTAGE (V)
Figure 3. Effect of Zener Voltage on
Zener Impedance
Figure 4. Typical Forward Voltage
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4
Embedded System
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