1N4678 thru 1N4717-1 DO-35
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
DESCRIPTION
The 1N4678 thru 1N4717 series of 0.5 watt Zener Voltage Regulators
provides a selection from 1.8 to 43 volts in standard 5% tolerances as well
as tighter tolerances identified by different suffix letters on the part number.
These glass axial-leaded DO-35 Zeners are also available with an internal-
metallurgical-bond option by adding “-1” suffix similar to military
requirements on similar Zeners. Microsemi also offers numerous other
Zener products to meet higher and lower power applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
DO-35
(DO-204AH)
FEATURES
•
•
•
JEDEC registered 1N4678 thru 1N4717
Internal metallurgical bond option available by
adding a “-1” suffix
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers
Surface Mount available in DO-213AA package
outline by adding a UR or UR-1 (see separate data
sheet for 1N4678UR thru 1N4717UR-1
DO-7 glass body axial-leaded Zener equivalents are
also available (see separate data sheet)
•
•
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating
current and temperature range
Guaranteed maximum voltage regulation 10 µA to
100 µA
Voltage selection from 1.8 to 43 V
Standard voltage tolerances are plus/minus 5%
with no suffix
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
Minimal capacitance (see Figure 3)
Inherently radiation hard as described in Microsemi
MicroNote 050
CASE: Hermetically sealed axial-lead glass DO-35
(DO-204AH) package
TERMINALS: Leads, tin-lead plated solderable per
MIL-STD-750, method 2026
POLARITY: Cathode indicated by band where
diode is to be operated with the banded end positive
with respect to the opposite end for Zener regulation
MARKING: Part number
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
WEIGHT: 0.2 grams
See package dimensions on last page
•
•
MAXIMUM RATINGS
•
•
Operating and Storage temperature: -65
º
C to
+175
º
C
Thermal Resistance: 250
º
C/W junction to lead at
º
3/8 (10 mm) lead length from body, or 310 C/W
junction to ambient when mounted on FR4 PC board
(1 oz Cu) with 4 mm
2
copper pads and track width 1
mm, length 25 mm
Steady-State Power: 0.5 watts at T
L
< 50
o
C 3/8 inch
(10 mm) from body or 0.48 W at T
A
< 25
º
C when
mounted on FR4 PC board as described for thermal
resistance (see Figure 2 for derating)
Forward voltage @200 mA: 1.1 volts (maximum)
Solder Temperatures: 260
º
C for 10 s (max)
MECHANICAL AND PACKAGING
•
•
•
•
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•
•
•
1N4678 – 1N4717-1
4678 – 1N4717-1
•
•
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N4678 thru 1N4717-1 DO-35
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
*ELECTRICAL CHARACTERISTICS @ 25ºC
JEDEC
NOMINAL
ZENER
MAXIMUM
MAXIMUM REVERSE
MAXIMUM
TYPE
ZENER
TEST
VOLTAGE
LEAKAGE CURRENT
DC ZENER
NUMBER
VOLTAGE
CURRENT
REGULATION
CURRENT*
(Note 3)
(Note 2 & 3)
(Note 1)
V
Z
I
ZT
I
ZM
I
R
@ V
R
∆
V
Z
VOLTS
VOLTS
VOLTS
mA
µA
µA
1N4678
1.8
50
0.70
7.5
1.0
240
1N4679
2.0
50
0.70
5.0
1.0
220
1N4680
2.2
50
0.75
4.0
1.0
200
1N4681
2.4
50
0.80
2.0
1.0
190
1N4682
2.7
50
0.85
1.0
1.0
180
1N4683
3.0
50
0.90
0.8
1.0
170
1N4684
3.3
50
0.95
7.5
1.5
160
1N4685
3.6
50
0.95
7.5
2.0
150
1N4686
3.9
50
0.97
5.0
2.0
140
1N4687
4.3
50
0.99
4.0
2.0
130
1N4688
4.7
50
0.99
10.0
3.0
120
1N4689
5.1
50
0.97
10.0
3.0
110
1N4690
5.6
50
0.96
10.0
4.0
100
1N4691
6.2
50
0.95
10.0
5.0
90
1N4692
6.8
50
0.90
10.0
5.1
70
1N4693
7.5
50
0.75
10.0
5.7
63.6
1N4694
8.2
50
0.50
1.0
6.2
58.0
1N4695
8.7
50
0.10
1.0
6.6
54.8
1N4696
9.1
50
0.08
1.0
6.9
52.4
1N4697
10.0
50
0.10
1.0
7.6
49.6
1N4698
11.0
50
0.11
0.05
8.4
43.2
1N4699
12.0
50
0.12
0.05
9.1
40.8
1N4700
13.0
50
0.13
0.05
9.8
38.0
1N4701
14.0
50
0.14
0.05
10.6
35.0
1N4702
15.0
50
0.15
0.05
11.4
32.6
1N4703
16.0
50
0.16
0.05
12.1
30.8
1N4704
17.0
50
0.17
0.05
12.9
29.0
1N4705
18.0
50
0.18
0.05
13.6
26.4
1N4706
19.0
50
0.19
0.05
14.4
25.0
1N4707
20.0
50
0.20
0.01
15.2
23.8
1N4708
22.0
50
0.22
0.01
16.7
21.6
1N4709
24.0
50
0.24
0.01
18.2
19.8
1N4710
25.0
50
0.25
0.01
19.0
19.0
1N4711
27.0
50
0.27
0.01
20.4
17.6
1N4712
28.0
50
0.28
0.01
21.2
17.0
1N4713
30.0
50
0.30
0.01
22.8
15.8
1N4714
33.0
50
0.33
0.01
25.0
14.4
1N4715
36.0
50
0.36
0.01
27.3
13.2
1N4716
39.0
50
0.39
0.01
29.6
12.2
1N4717
43.0
50
0.43
0.01
32.6
11.0
*JEDEC registered data except I
ZM
has been increased (doubled) for 500 mW power dissipation capabilities
NOTES:
1.
2.
3.
All types as shown are +/-5% tolerance. Also available in 2% and 1% tolerance with suffix C and D respectively.
∆
V
Z
@ 100µA minus
V
Z
@ 10µA.
The electrical characteristics are measured after allowing the device to stabilize for 20 seconds when mounted with 3/8”
minimum lead length from the base.
WWW .
Microsemi
.C
OM
1N4678 – 1N4717-1
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N4678 thru 1N4717-1 DO-35
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
GRAPHS
TEMPERATURE COEFFICIENT mV/ C
WWW .
Microsemi
.C
OM
TEMPERATURE COEFFICIENT %/ C
RATED POWER DISSIPATION - mW
Voltage Temperature
o
Coefficient %/ C
o
mV Change /ºC
o
T
L
– LEAD TEMPERATURE ( C) 3/8” FROM BODY or
T
A
on FR4 PC BOARD
o
NOMINAL ZENER VOLTAGE (VOLTS)
FIGURE 1
POWER DERATING CURVE
FIGURE 2
ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
PACKAGE DIMENSIONS
TYPICAL CAPACITANCE IN PICOFARADS
At zero volts
At –2 volts (VR)
1N4678 – 1N4717-1
FIGURE 3
CAPACITANCE vs. V
Z
CURVE
ZENER VOLTAGE V
Z
All dimensions in: INCH
mm
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
PCB Design
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