Microsemi 1N4370, 1N4372A -1 User Manual
查询1N4370供应商
1N746 thru 1N759A, -1 and
1N4370 thru 1N4372A, -1 DO-35
SCOTTSDALE DIVISION
The popular 1N746 thru 1N759A and 1N4370 thru 1N4372A series of 0.5
DESCRIPTION
watt Zener Voltage Regulators provides a selection from 2.4 to 12 volts in
standard 5% or 10% 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 a “-1” suffix. These are also available in JAN, JANTX, and JANTXV
military qualifications. Microsemi also offers numerous other Zener
products to meet higher and lower power applications.
IMPORTANT: For the most current data, consult
• JEDEC registered 1N746 thru 1N759A and 1N4370
thru 1N4372A series
• Internal metallurgical bond option available by adding
a “-1” suffix
• Also available in JAN, JANTX, and JANTXV
qualifications per MIL-PRF-19500/127 by adding the
JAN, JANTX, or JANTXV prefixes to part numbers for
desired level of screening as well as –1” suffix; (e.g.
JANTX1N751A-1, JANTXV1N758C-1, etc.)
• Military Surface Mount equivalents also available in
DO-213AA by adding a UR-1 suffix in addition to the
JAN, JANTX, and JANTXV prefix; e.g.
JANTX1N962BUR-1 (see separate data sheet)
• Commercial Surface Mount equivalents available as
MLL746 to MLL759A and MLL4370 to MLL4372A
including the “-1” suffix in the DO-213AA MELF style
package (consult factory for others)
• DO-7 glass body axial-leaded Zener equivalents are
also available
• Operating and Storage temperature: -65
• Thermal Resistance: 250
(10 mm) lead length from body, or 310
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 T
(10 mm) from body or 0.48 W at T
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
• Forward voltage @200 mA: 1.1 volts
• Solder Temperatures: 260
FEATURES
MAXIMUM RATINGS
º
C/W junction to lead at 3/8
A
º
C for 10 s (max)
MICROSEMI’s
º
C to +175ºC
º
C/W junction to
< 50oC 3/8 inch
L
< 25ºC when
Silicon 500 mW Zener Diodes
website: http://www.microsemi.com
• Regulates voltage over a broad operating
current and temperature range
• Selection from 2.4 to 12 V
• Standard voltage tolerances are plus/minus 5%
with A suffix identification and 10 % 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
• Minimal capacitance (see Figure 3)
• Inherently radiation hard as described in Microsemi
MECHANICAL AND PACKAGING
• CASE: Hermetically sealed axial-lead glass
• TERMINALS: Leads, tin-lead plated solderable per
• POLARITY: Cathode indicated by band. Diode to
• MARKING: Part number
• TAPE & REEL option: Standard per EIA-296 (add
• WEIGHT: 0.2 grams
• See package dimensions on last page
APPLICATIONS / BENEFITS
1020
MicroNote 050
DO-35 (DO-204AH) package
MIL-STD-750, method 2026
be operated with the banded end positive with
respect to the opposite end for Zener regulation
“TR” suffix to part number)
DO-35
(DO-204AH)
APPEARANCE
WWW.
Microsemi
. COM
1N4370 – 4372A (DO-35)
1N746 –759A
Copyright 2003
10-31-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N746 thru 1N759A, -1 and
TEMPERATURE COEFFICIENT %/
C
1N4370 thru 1N4372A, -1 DO-35
SCOTTSDALE DIVISION
Silicon 500 mW Zener Diodes
ELECTRICAL CHARACTERISTICS* @ 25oC
JEDEC
TYPE NO.
(NOTE1)
1N4370
1N4371
1N4372
1N746
1N747
1N748
1N749
1N750
1N751
1N752
1N753
1N754
1N755
1N756
1N757
1N758
1N759
NOMINAL
ZENER
VOLTAGE
V
I
@
Z
ZT
(NOTE 2)
VOLTS mA OHMS
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10.0
12.0
ZENER
TEST
CURRENT
I
ZT
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
MAXIMUM
ZENER
IMPEDANCE
I
@
Z
(NOTE 3)
ZT
ZT
30
30
29
28
24
23
22
19
17
11
7
5
6
8
10
17
30
* JEDEC Registered Data
NOTE 1: Standard tolerance on JEDEC types shown is +/- 10%. Suffix letter A denotes +/- 5% tolerance; suffix
letter C denotes +/- 2%; and suffix letter D denotes +/- 1% tolerance.
NOTE 2: Voltage measurements to be performed 20 seconds after application of dc test current.
NOTE 3: Zener impedance derived by superimposing on
typical zener Impedance variation with different operating currents.
NOTE 4: Allowance has been made for the increase in
thermal equilibrium at the power dissipation of 400 mW.
I
, a 60 cps, rms ac current equal to 10%
ZT
V
due to ZZ and for the increase in junction temperature as the unit approaches
Z
GRAPHS
MAXIMUM REVERSE
CURRENT I
= 1 VOLT
@ V
R
@25ºC
µ
100
º
A
75
50
10
10
10
2
2
1
1
.1
.1
.1
.1
.1
.1
.1
@+150ºC
R
µ
A
200
150
100
30
30
30
30
30
20
20
20
20
20
20
20
20
20
MAXIMUM
ZENER
CURRENT
I
ZM
(NOTE 4)
mA %/
150
135
120
110
100
95
85
75
70
65
60
55
50
45
40
35
30
I
(2mA ac). See MicroNote 202 for
ZT
WWW.
TYPICAL
TEMP COEFF.
OF ZENER
VOLTAGE
α
VZ
o
C
-.085
-.080
-.075
-.066
-.058
-.046
-.033
-.015
+/-.010
+.030
+.049
+.053
+.057
+.060
+.061
+.062
+.062
TEMPERATURE COEFFICIENT mV/
Microsemi
. COM
RATED POWER DISSIPATION - mW
T
T
– LEAD TEMPERATURE (oC) 3/8” FROM BODY or NOMINAL ZENER VOLTAGE (VOLTS)
L
on FR4 PC BOARD
A
FIGURE 1 FIGURE 2
POWER DERATING CURVE ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
Copyright 2003
10-31-2003 REV B
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Microsemi
Scottsdale Division
1N4370 – 4372A (DO-35)
1N746 –759A
o
C
Page 2
Loading...