ETC BZX79C2V4RL/D

BZX79C2V4RL Series
500 mW DO-35 Hermetically
Sealed Glass Zener Voltage
Regulators
This is a complete series of 500 mW Zener diodes with limits and
excellent operating characteristics that reflect the superior capabilities
of silicon–oxide passivated junctions. All this in an axial–lead
hermetically sealed glass package that offers protection in all common
environmental conditions.
http://onsemi.com
Cathode
Anode
Specification Features:
• Zener Voltage Range – 2.4 V to 33 V
• ESD Rating of Class 3 (>16 KV) per Human Body Model
• DO–204AH (DO–35) Package – Smaller than Conventional
DO–204AA Package
• Double Slug Type Construction
• Metallurgical Bonded Construction
AXIAL LEAD
CASE 299
GLASS
Mechanical Characteristics:
CASE: Double slug type, hermetically sealed glass
FINISH: All external surfaces are corrosion resistant and leads are
MARKING DIAGRAM
readily solderable
L
79C
xxx
YWW
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
230°C, 1/16″ from the case for 10 seconds
POLARITY: Cathode indicated by polarity band
MOUNTING POSITION: Any
MAXIMUM RATINGS (Note 1.)
Rating
Max. Steady State Power Dissipation
@ TL ≤ 75°C, Lead Length = 3/8″
Derate above 75°C
Operating and Storage
Temperature Range
Symbol
Value
Unit
PD
500
mW
4.0
mW/°C
–65 to
+200
°C
TJ, Tstg
L
= Assembly Location
79Cxxx = Device Code
= (See Table Next Page)
Y
= Year
WW
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
BZX79CxxxRL
Axial Lead
5000/Tape & Reel
BZX79CxxxRL2*
Axial Lead
5000/Tape & Reel
1. Some part number series have lower JEDEC registered ratings.
* The “2” suffix refers to 26 mm tape spacing.
 Semiconductor Components Industries, LLC, 2001
May, 2001 – Rev. 1
1
Publication Order Number:
BZX79C2V4RL/D
BZX79C2V4RL Series
ELECTRICAL CHARACTERISTICS (TL = 30°C unless
otherwise noted, VF = 1.5 V Max @ IF = 100 mA for all types)
Symbol
IF
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
ZZT
Maximum Zener Impedance @ IZT
VBR
I
VZ VR
V
Temperature Coefficient of VBR (Typical)
IR
Reverse Leakage Current (TA = 25°C) @ VR
VR
Breakdown Voltage
IF
Forward Current
VF
Forward Voltage @ IF
C
Capacitance (Typical)
IR VF
IZT
Zener Voltage Regulator
ELECTRICAL CHARACTERISTICS (TL = 30°C unless otherwise noted, VF = 1.5 V Max @ IF = 100 mA for all types)
Leakage Current
VBR
IR @ VR
mV/C
@ IZT
ZZT (Note 4.)
@ IZT
(f = 1.0 kHz)
Max
mA
µA
Volts
Min
Max
pF
2.4
2.7
3.0
3.3
3.6
2.52
2.84
3.15
3.47
3.78
5
5
5
5
5
100
100
95
95
90
100
75
50
25
15
1
1
1
1
1
–3.5
–3.5
–3.5
–3.5
–3.5
0
0
0
0
0
255
230
215
200
185
3.71
4.47
4.85
5.32
5.89
3.9
4.7
5.1
5.6
6.2
4.10
4.94
5.36
5.88
6.51
5
5
5
5
5
90
80
60
40
10
10
3
2
1
3
1
2
2
2
4
–3.5
–3.5
–2.7
–2.0
0.4
0.3
0.2
1.2
2.5
3.7
175
130
110
95
90
79C6V8
79C7V5
79C8V2
79C10
79C12
6.46
7.13
7.79
9.5
11.4
6.8
7.5
8.2
10
12
7.19
7.88
8.61
10.5
12.6
5
5
5
5
5
15
15
15
20
25
2
1
0.7
0.2
0.1
4
5
5
7
8
1.2
2.5
3.2
4.5
6.0
4.5
5.3
6.2
8.0
10
85
80
75
70
65
BZX79C15RL
BZX79C16RL
BZX79C18RL
BZX79C22RL
BZX79C24RL
79C15
79C16
79C18
79C22
79C24
14.25
15.2
17.1
20.9
22.8
15
16
18
22
24
15.75
16.8
18.9
23.1
25.2
5
5
5
5
5
30
40
45
55
70
0.05
0.05
0.05
0.05
0.05
10.5
11.2
12.6
15.4
16.8
9.2
10.4
12.9
16.4
18.4
13
14
16
20
22
55
52
47
34
33
BZX79C27RL
BZX79C30RL
BZX79C33RL
79C27
79C30
79C33
25.65
28.5
31.35
27
30
33
28.35
31.5
34.65
5
5
5
80
80
80
0.05
0.05
0.05
18.9
21
23.1
–
–
–
23.5
26
29
30
27
25
Zener Voltage (Note 3.)
VZ (Volts)
Device
(Note 2.)
Device
Marking
Min
Nom
BZX79C2V4RL
BZX79C2V7RL
BZX79C3V0RL
BZX79C3V3RL
BZX79C3V6RL
79C2V4
79C2V7
79C3V0
79C3V3
79C3V6
2.28
2.57
2.85
3.14
3.42
BZX79C3V9RL
BZX79C4V7RL
BZX79C5V1RL
BZX79C5V6RL
BZX79C6V2RL
79C3V9
79C4V7
79C5V1
79C5V6
79C6V2
BZX79C6V8RL
BZX79C7V5RL
BZX79C8V2RL
BZX79C10RL
BZX79C12RL
C
VZ = 0
0,
f = 1.0 MHz
2. TOLERANCE AND VOLTAGE DESIGNATION
Tolerance designation – the type numbers listed have zener voltage min/max limits as shown.
3. REVERSE ZENER VOLTAGE (VZ) MEASUREMENT
Reverse zener voltage is measured under pulse conditions such that TJ is no more than 2°C above TA.
4. ZENER IMPEDANCE (ZZ) DERIVATION
ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for I Z(ac) =
0.1 IZ(dc) with the ac frequency = 1.0 kHz.
http://onsemi.com
2
BZX79C2V4RL Series
PD, STEADY STATE
POWER DISSIPATION (WATTS)
0.7
HEAT
SINKS
0.6
0.5
0.4
3/8"
3/8"
0.3
0.2
0.1
0
0
20
40
60
80
100
120
140
160
TL, LEAD TEMPERATURE (°C)
Figure 1. Steady State Power Derating
http://onsemi.com
3
180
200
BZX79C2V4RL Series
θ JL , JUNCTIONTOLEAD THERMAL RESISTANCE (°C/W)
APPLICATION NOTE — ZENER VOLTAGE
Since the actual voltage available from a given zener
diode is temperature dependent, it is necessary to determine
junction temperature under any set of operating conditions
in order to calculate its value. The following procedure is
recommended:
Lead Temperature, TL, should be determined from:
TL = θLAPD + TA.
θLA is the lead-to-ambient thermal resistance (°C/W) and PD
is the power dissipation. The value for θLA will vary and
depends on the device mounting method. θLA is generally 30
to 40°C/W for the various clips and tie points in common use
and for printed circuit board wiring.
The temperature of the lead can also be measured using a
thermocouple placed on the lead as close as possible to the
tie point. The thermal mass connected to the tie point is
normally large enough so that it will not significantly
respond to heat surges generated in the diode as a result of
pulsed operation once steady-state conditions are achieved.
Using the measured value of TL, the junction temperature
may be determined by:
500
400
L
L
300
2.4-60V
200
62-200V
100
0
0
0.2
0.4
0.6
0.8
1
L, LEAD LENGTH TO HEAT SINK (INCH)
Figure 2. Typical Thermal Resistance
1000
7000
5000
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
2000
1000
700
500
TJ = TL + ∆TJL.
∆TJL is the increase in junction temperature above the lead
temperature and may be found from Figure 2 for dc power:
200
∆TJL = θJLPD.
I R , LEAKAGE CURRENT ( µ A)
For worst-case design, using expected limits of IZ, limits
of PD and the extremes of TJ(∆TJ) may be estimated.
Changes in voltage, VZ, can then be found from:
∆V = θVZTJ.
θVZ, the zener voltage temperature coefficient, is found
from Figures 4 and 5.
Under high power-pulse operation, the zener voltage will
vary with time and may also be affected significantly by the
zener resistance. For best regulation, keep current
excursions as low as possible.
Surge limitations are given in Figure 7. They are lower
than would be expected by considering only junction
temperature, as current crowding effects cause temperatures
to be extremely high in small spots, resulting in device
degradation should the limits of Figure 7 be exceeded.
100
70
50
20
10
7
5
2
1
0.7
0.5
+125°C
0.2
0.1
0.07
0.05
0.02
0.01
0.007
0.005
+25°C
0.002
0.001
3
4
5
6
7
8
9
10
11
12
13
VZ, NOMINAL ZENER VOLTAGE (VOLTS)
Figure 3. Typical Leakage Current
http://onsemi.com
4
14
15
BZX79C2V4RL Series
TEMPERATURE COEFFICIENTS
+12
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
(–55°C to +150°C temperature range; 90% of the units are in the ranges indicated.)
+10
+8
+6
+4
+2
RANGE
0
VZ@IZT
(NOTE 2)
-2
-4
2
3
4
5
6
7
8
9
VZ, ZENER VOLTAGE (VOLTS)
10
11
12
100
70
50
30
20
3
2
1
10
200
180
160
140
100
VZ@IZT
(NOTE 2)
120
130
140
150
160
170
180
190
20
200
+2
20mA
0
0.01mA
1mA
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: AFFECT TEMPERATURE COEFFICIENTS
-2
-4
3
4
C, CAPACITANCE (pF)
C, CAPACITANCE (pF)
100
70
50
200
1V BIAS
20
10
50% OF
VZBIAS
5
7
8
TA=25°C
0 BIAS
30
20
1VOLTBIAS
10
7
5
50% OF VZBIAS
3
2
2
1
6
Figure 5. Effect of Zener Current
0V BIAS
50
5
VZ, ZENER VOLTAGE (VOLTS)
TA=25°C
100
100
VZ@IZ
TA=25°C
+4
Figure 4c. Range for Units 120 to 200 Volts
500
70
+6
VZ, ZENER VOLTAGE (VOLTS)
1000
30
50
VZ, ZENER VOLTAGE (VOLTS)
Figure 4b. Range for Units 12 to 100 Volts
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
Figure 4a. Range for Units to 12 Volts
120
VZ@IZ(NOTE 2)
RANGE
10
7
5
1
2
5
10
20
50
1
100
120
VZ, ZENER VOLTAGE (VOLTS)
140
160
180
190
200
220
VZ, ZENER VOLTAGE (VOLTS)
Figure 6a. Typical Capacitance 2.4–100 Volts
Figure 6b. Typical Capacitance 120–200 Volts
http://onsemi.com
5
Ppk , PEAK SURGE POWER (WATTS)
BZX79C2V4RL Series
100
70
50
RECTANGULAR
WAVEFORM
TJ=25°C PRIOR TO
INITIAL PULSE
11V-91V NONREPETITIVE
5% DUTY CYCLE
30
1.8V-10V NONREPETITIVE
20
10
7
5
10% DUTY CYCLE
20% DUTY CYCLE
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
200
500
1000
PW, PULSE WIDTH (ms)
Figure 7a. Maximum Surge Power 1.8–91 Volts
Ppk , PEAK SURGE POWER (WATTS)
RECTANGULAR
WAVEFORM, TJ=25°C
ZZ , DYNAMIC IMPEDANCE (OHMS)
1000
500
1000
700
500
300
200
200
47V
100
100
70
50
30
20
100-200VOLTS NONREPETITIVE
10
7
5
3
2
1
0.01
0.1
1
10
100
27V
50
20
6.2V
10
5
2
1
1000
0.1
0.2
0.5
Figure 7b. Maximum Surge Power DO-204AH
100–200 Volts
5mA
20
20mA
1000
50
100
50
20
75°C
10
25°C
5 150°C
0°C
2
2
20
100
2
1
10
200
10
7
5
1
5
MAXIMUM
MINIMUM
500
I F , FORWARD CURRENT (mA)
ZZ , DYNAMIC IMPEDANCE (OHMS)
100
70
50
2
Figure 8. Effect of Zener Current on
Zener Impedance
TJ=25°C
iZ(rms)=0.1 IZ(dc)
f=60Hz
IZ=1mA
200
1
IZ, ZENER CURRENT (mA)
PW, PULSE WIDTH (ms)
1000
700
500
TJ=25°C
iZ(rms)=0.1 IZ(dc)
f=60Hz
VZ=2.7V
3
5
7
10
20
30
50
70 100
1
0.4
VZ, ZENER VOLTAGE (VOLTS)
0.5
0.6
0.7
0.8
0.9
1
VF, FORWARD VOLTAGE (VOLTS)
Figure 9. Effect of Zener Voltage on Zener Impedance
http://onsemi.com
6
Figure 10. Typical Forward Characteristics
1.1
BZX79C2V4RL Series
20
10
I Z , ZENER CURRENT (mA)
TA=25°
1
0.1
0.01
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
29
30
VZ, ZENER VOLTAGE (VOLTS)
Figure 11. Zener Voltage versus Zener Current — VZ = 1 thru 16 Volts
10
I Z , ZENER CURRENT (mA)
TA=25°
1
0.1
0.01
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VZ, ZENER VOLTAGE (VOLTS)
Figure 12. Zener Voltage versus Zener Current — VZ = 15 thru 30 Volts
http://onsemi.com
7
BZX79C2V4RL Series
I Z , ZENER CURRENT (mA)
10
TA=25°
1
0.1
0.01
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
250
260
VZ, ZENER VOLTAGE (VOLTS)
Figure 13. Zener Voltage versus Zener Current — VZ = 30 thru 105 Volts
I Z , ZENER CURRENT (mA)
10
1
0.1
0.01
110
120
130
140
150
160
170
180
190
200
210
220
230
240
VZ, ZENER VOLTAGE (VOLTS)
Figure 14. Zener Voltage versus Zener Current — VZ = 110 thru 220 Volts
http://onsemi.com
8
BZX79C2V4RL Series
OUTLINE DIMENSIONS
Zener Voltage Regulators – Axial Leaded
500 mW DO–35 Glass
GLASS DO–35/D0–204AH
CASE 299–02
ISSUE A
NOTES:
1. PACKAGE CONTOUR OPTIONAL WITHIN A AND B
HEAT SLUGS, IF ANY, SHALL BE INCLUDED
WITHIN THIS CYLINDER, BUT NOT SUBJECT TO
THE MINIMUM LIMIT OF B.
2. LEAD DIAMETER NOT CONTROLLED IN ZONE F
TO ALLOW FOR FLASH, LEAD FINISH BUILDUP
AND MINOR IRREGULARITIES OTHER THAN
HEAT SLUGS.
3. POLARITY DENOTED BY CATHODE BAND.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
B
D
K
F
A
DIM
A
B
D
F
K
F
K
MILLIMETERS
MIN
MAX
3.05
5.08
1.52
2.29
0.46
0.56
--1.27
25.40
38.10
INCHES
MIN
MAX
0.120
0.200
0.060
0.090
0.018
0.022
--0.050
1.000
1.500
All JEDEC dimensions and notes apply.
http://onsemi.com
9
BZX79C2V4RL Series
Notes
http://onsemi.com
10
BZX79C2V4RL Series
Notes
http://onsemi.com
11
BZX79C2V4RL Series
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable
attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
NORTH AMERICA Literature Fulfillment:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Email: [email protected]
Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada
N. American Technical Support: 800–282–9855 Toll Free USA/Canada
EUROPE: LDC for ON Semiconductor – European Support
German Phone: (+1) 303–308–7140 (Mon–Fri 2:30pm to 7:00pm CET)
Email: ONlit–[email protected]
French Phone: (+1) 303–308–7141 (Mon–Fri 2:00pm to 7:00pm CET)
Email: ONlit–[email protected]
English Phone: (+1) 303–308–7142 (Mon–Fri 12:00pm to 5:00pm GMT)
Email: [email protected]
CENTRAL/SOUTH AMERICA:
Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST)
Email: ONlit–[email protected]
Toll–Free from Mexico: Dial 01–800–288–2872 for Access –
then Dial 866–297–9322
ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support
Phone: 1–303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)
Toll Free from Hong Kong & Singapore:
001–800–4422–3781
Email: ONlit–[email protected]
JAPAN: ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031
Phone: 81–3–5740–2700
Email: [email protected]
ON Semiconductor Website: http://onsemi.com
EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781
*Available from Germany, France, Italy, UK, Ireland
For additional information, please contact your local
Sales Representative.
http://onsemi.com
12
BZX79C2V4RL/D