Axial-Leaded 500 mW Zener Diodes
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2003
11-03-2003 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N5728B thru 1N5757B-1 DO-35
1N5728B thru
1N
5
7
5
7B-1
DESCRIPTION APPEARANCE
The 1N5728 thru 1N5757 series of 0.5 watt Zener Voltage Regulators
provides a selection from 4.7 to 75 volts in standard 5% tolerances as well
as tighter tolerances identified by a “C” or “D” suffix letter on the part
number. These glass axial-leaded DO-35 Zeners are also available with an
internal-metallurgical-bond option by adding a “-1” suffix. Microsemi also
offers numerous other Zener products to meet higher and lower power
applications.
DO-35
(DO-204AH)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• JEDEC registered 1N5728 to 1N5757 series
• 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 with
“-1” suffix
• Surface Mount equivalents are also available in
DO-213AA by adding a UR or UR-1 suffix, e.g.
1N5728UR, 1N5746UR-1, etc. (see separate
data sheets)
• DO-7 glass body axial-leaded Zener equivalents
are also available
• Regulates voltage over a broad operating
current and temperature range
• Extensive selection from 4.7 to 75 V
• Standard voltage tolerances of plus/minus 5%
with a B 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
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Operating and Storage temperature: -65ºC to
+175ºC
• Thermal Resistance: 250 ºC/W junction to lead
at 3/8 (10 mm) lead length from body, or
310ºC/W junction to ambient when mounted on
FR4 PC board (1 oz Cu) with 4 mm2 copper
pads and track width 1 mm, length 25 mm
• Steady-State Power: 0.5 watts at TL < 50oC 3/8
inch (10 mm) from body or 0.48 W at TA < 25ºC
when mounted on FR4 PC board as described
for thermal resistance above (also see Figure1)
• Forward voltage @10 mA: 0.9 volts (maximum)
• Solder Temperatures: 260 ºC for 10 s (max)
• 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. Diode
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
Axial-Leaded 500 mW Zener Diodes
SCOTTSDALE DIVISION
1N5728B thru 1N5757B-1 DO-35
WWW.Microsemi .COM 1N5728B thru
1N
5
7
5
7B-1
ELECTRICAL CHARACTERISTICS*
REGULATOR
VOLTAGE
TEST
CURRENT
DYNAMIC
IMPEDANCE
REVERSE
CURRENT
IR TEST
VOLTAGE
MAXIMUM
REGULATOR
CURRENT
TEMPERATURE
COEFFICIENT
TYPE
NUMBER
(Note 1) (VZ)
Volts
(IZ)
Amps
(ZZ)
Ohms
IR
µA
(VR)
Volts
(IZM)
mA
(αVZ)
mV/oC
1N5728B
1N5729B
1N5730B
1N5731B
1N5732B
4.7
5.1
5.6
6.2
6.8
10
10
10
10
10
70
50
25
10
10
3.0
3.0
3.0
3.0
3.0
2
2
2
4
4
70
65
60
55
50
-1.0
-0.2
+1.2
+2.3
+3.0
1N5733B
1N5734B
1N5735B
1N5736B
1N5737B
7.5
8.2
9.1
10
11
10
10
10
10
5
10
15
15
20
20
2.0
1.0
0.5
0.2
0.1
5
5
6
7
8
45
40
40
35
30
+4.0
+5.0
+6.0
+7.0
+8.0
1N5738B
1N5739B
1N5740B
1N5741B
1N5742B
12
13
15
16
18
5
5
5
5
5
25
30
30
40
45
0.1
0.1
0.1
0.1
0.1
8
9
10
11
12
30
25
25
20
20
+9.0
+10.5
+12.9
+13
+15
1N5743B
1N5744B
1N5745B
1N5746B
1N5747B
20
22
24
27
30
5
5
5
2
2
55
55
70
80
80
0.1
0.1
0.1
0.1
0.1
14
15
17
19
21
15
15
15
10
10
+17
+19
+21
+23.5
+26
1N5748B
1N5749B
1N5750B
1N5751B
1N5752B
33
36
39
43
47
2
2
2
2
2
90
90
130
150
170
0.1
0.1
0.1
0.1
0.1
23
25
27
30
33
10
10
9
9
8
+29
+31
+34
+37
+40
1N5753B
1N5754B
1N5755B
1N5756B
1N5757B
51
56
62
68
75
2
2
2
2
2
180
200
215
240
255
0.1
0.1
0.1
0.1
0.1
36
39
43
48
53
7
6
6
5
5
+44
+47
+51
+56
+60
*JEDEC Registered Data. The Type Number indicates 5% Tolerance. (See Note 1.)
NOTES:
1. Devices listed have a +/-5% voltage tolerance on nominal Vz with a B suffix. An A suffix is +/-10% and no suffix is +/-20%.
Suffix C denotes a +/-2% tolerance and suffix D denotes a +/-1% tolerance.
2. All static parameters measured under pulsed conditions, tp = 300 µs.
3. Dynamic Impedance is derived by measuring the ac voltage when superimposing an ac rms current of 0.2 mA at 1000 Hz on
to the dc level of IZT.
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2003
11-03-2003 REV A
Axial-Leaded 500 mW Zener Diodes
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2003
11-03-2003 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N5728B thru 1N5757B-1 DO-35
1N5728B thru
1N
5
7
5
7B-1
GRAPHS
RATED POWER DISSIPATION - mW
TEMPERATURE COEFFICIENT mV/oC
TEMPERATURE COEFFICIENT %/oC
Voltage Temperature
Coefficient %/oC
mV Change /ºC
T
L – LEAD TEMPERATURE (oC) 3/8” FROM BODY or NOMINAL ZENER VOLTAGE (VOLTS)
TA on FR4 PC BOARD FIGURE 2
FIGURE 1 ZENER VOLTAGE TEMPERATURE
POWER DERATING CURVE COEFFICIENT vs. ZENER VOLTAGE
CAPACITANCE vs. VZ CURVE PACKAGE DIMENSIONS
All dimensions in: INCH
mm
TYPICAL CAPACITANCE IN PICOFARADS
ZENER VOLTAGE VZ
FIGURE 3
