Zener Diode. 1N749A Datasheet


1N749A Diode. Datasheet pdf. Equivalent


1N749A


Silicon Zener Diode
Silicon Zener Diode Series
1N746 thru 1N759, 1N4370A thru 1N4372A

Features
• Available in JAN, JANTX and JANTXV per MIL-PRF-19500/127
• Double Plug Construction • Metallurgically Bonded • Also available in DO-213 MELF style package
Maximum Ratings
Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 500 mW @ +50°C Power Derating: 4 mW / °C above +50°C Forward Voltage @ 200mA: 1.1 volts maximum
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)

JEDEC TYPE NUMBER
(NOTE 1)
1N4370A 1N4371A 1N4372A
1N746A 1N747A 1N748A
1N749A 1N750A 1N751A
1N752A 1N753A 1N754A
1N755A 1N756A 1N757A
1N758A 1N759A

NOMINAL ZENER
VOLTAGE VZ @ IZT
VOLTS
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
IZT (NOTE 2)
mA
20 20 20
20 20 20
20 20 20
20 20 20
20 20 20
20 20

MAXIMUM ZENER
IMPEDANCE
(NOTE 3)
ZZT@ IZT
OHMS
30 30 29
28 24 23
22 19 17
11 7 5
6 8 10
17 30

MAXIMUM REVERSE CURRENT
IR @ VR
μA ...



1N749A
Silicon Zener Diode Series
1N746 thru 1N759, 1N4370A thru 1N4372A
Features
• Available in JAN, JANTX and JANTXV
per MIL-PRF-19500/127
• Double Plug Construction
• Metallurgically Bonded
• Also available in DO-213 MELF style package
Maximum Ratings
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500 mW @ +50°C
Power Derating: 4 mW / °C above +50°C
Forward Voltage @ 200mA: 1.1 volts maximum
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
JEDEC
TYPE
NUMBER
(NOTE 1)
1N4370A
1N4371A
1N4372A
1N746A
1N747A
1N748A
1N749A
1N750A
1N751A
1N752A
1N753A
1N754A
1N755A
1N756A
1N757A
1N758A
1N759A
NOMINAL
ZENER
VOLTAGE
VZ @ IZT
VOLTS
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
IZT
(NOTE 2)
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
MAXIMUM
ZENER
IMPEDANCE
(NOTE 3)
ZZT@ IZT
OHMS
30
30
29
28
24
23
22
19
17
11
7
5
6
8
10
17
30
MAXIMUM
REVERSE CURRENT
IR @ VR
μA VOLTS
100 1.0
60 1.0
30 1.0
5 1.0
3 1.0
2 1.0
2 1.0
5 1.5
5 2.0
5 2.5
5 3.5
2 4.0
2 5.0
1 6.0
1 7.0
1 8.0
1 9.0
MAXIMUM
ZENER
CURRENT
IZM
mA
155
140
125
120
110
100
90
85
75
70
65
60
55
50
45
40
35
NOTE 1: Zener voltage tolerance on "A" suffix is +5%. No Suffix denotes +10% tolerance,
"C" suffix denotes +2% tollerance and "D" suffix denotes +1% tolerance.
NOTE 2: Zener voltage is measured with the device junction in thermal equilibrium at an ambient
temperature of 25°C + 3°C.
NOTE 3: Zener impedance is derived by superimposing on IZT A 60Hz rms a.c. current equal to 10% of IZT
Revision Date: 11/4/2009
New Product
1

1N749A
Outline Drawing
0.080 MAX
2.03 DIA
1.000
25.400
MIN
POLARITY
BAND
(CATHODE)
0.018 / 0.022
0.457 / 0.559
DIA
0.175
4.44
MAX
1.000
25.400
MIN
All dimensions in INCH
mm
Graphs
1N746 thru1N759A & 1N4370 thru1N4372A
(Including -1 Versions)
LEADED DESIGN DATA
CASE: Hermetically sealed, DO – 35
LEAD MATERIAL: Copper clad steel
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (RθJEC): 250 ˚C/W maximum at L = .375 in
THERMAL IMPEDANCE: (ZθJX): 35˚C/W maximum
POLARITY: Diode to be operated with the banded (cathode) end positive
MOUNTING POSITION: Any
Aeroflex / Metelics, Inc.
975 Stewart Drive,
Sunnyvale, CA 94085
Tel: (408) 737-8181
Fax: (408) 733-7645
54 Grenier Field Road,
Londonderry, NH 03053
Tel: (603) 641-3800
Fax: (603)-641-3500
Sales: 888-641-SEMI (7364)
Hi-Rel Components
9 Hampshire Street,
Lawrence, MA 01840
Tel: (603) 641-3800
Fax: (978) 683-3264
www.aeroflex.com/metelics-hirelcomponents
ISO 9001: 2008 certified companies
www.aeroflex.com/metelics metelics-sales@aeroflex.com
Aeroflex / Metelics, Inc. reserves the right to make changes to any products and services
herein at any time without notice. Consult Aeroflex or an authorized sales representative to
verify that the information in this data sheet is current before using this product. Aeroflex
does not assume any responsibility or liability arising out of the application or use of any
product or service described herein, except as expressly agreed to in writing by Aeroflex;
nor does the purchase, lease, or use of a product or service from Aeroflex convey a license
under any patent rights, copyrights, trademark rights, or any other of the intellectual rights
of Aeroflex or of third parties.
Copyright 2009 Aeroflex / Metelics. All rights reserved.
Our passion for performance is defined by three
attributes represented by these three icons:
solution-minded, performance-driven and customer-focused.
Revision Date: 11/4/2009




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)