1N749C-1 datasheet, PDF - EEWORLD Datasheet

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1N749C-1: Description3 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35; CategoryDiscrete semiconductor diode; File Size33KB，2 Pages; ManufacturerMicrosemi; Websitehttps://www.microsemi.com

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1N749C-1 Overview

3 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35

1N749C-1 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Parts packaging code	DO-35
package instruction	O-LALF-W2
Contacts	2
Reach Compliance Code	compliant
ECCN code	EAR99
Is Samacsys	N
Other features	METALLURGICALLY BONDED
Shell connection	ISOLATED
Configuration	SINGLE
Diode component materials	SILICON
Diode type	ZENER DIODE
Maximum dynamic impedance	22 Ω
JEDEC-95 code	DO-35
JESD-30 code	O-LALF-W2
JESD-609 code	e0
Humidity sensitivity level	1
Number of components	1
Number of terminals	2
Maximum operating temperature	175 °C
Package body material	GLASS
Package shape	ROUND
Package form	LONG FORM
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
polarity	UNIDIRECTIONAL
Maximum power dissipation	0.5 W
Certification status	Not Qualified
Nominal reference voltage	4.3 V
surface mount	NO
technology	ZENER
Terminal surface	TIN LEAD
Terminal form	WIRE
Terminal location	AXIAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum voltage tolerance	2%
Working test current	20 mA
Base Number Matches	1

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• 1N746A-1 THRU 1N759-1 AVAILABLE IN

JAN, JANTX

AND

JANTXV

PER MIL-PRF-19500/127

• 1N4370A-1 THRU 1N4372A-1 AVAILABLE IN

JAN, JANTX

AND

JANTXV

PER MIL-PRF-19500/127

• DOUBLE PLUG CONSTRUCTION

• METALLURGICALLY BONDED

1N746

thru

1N759A

and

1N746A-1

thru

1N759A-1

and

1N4370

thru

1N4372A

and

1N4370A-1

thru

1N4372A-1

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 CHARACTERISTICS @ 25°C

JEDEC

TYPE

NUMBER

(NOTE 1)

NOMINAL

ZENER

VOLTAGE

VZ @ 1ZT

(NOTE 2)

VOLTS

1N4370A

1N4371A

1N4372A

1N746A

1N747A

1N748A

1N749A

1N750A

1N751A

1N752A

1N753A

1N754A

1N755A

1N756A

1N757A

1N758A

1N759A

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

1ZT

MAXIMUM

ZENER

IMPEDANCE

(NOTE 3)

ZZT@ 1ZT

OHMS

MAXIMUM

REVERSE CURRENT

IR@ VR

MAXIMUM

ZENER

CURRENT

VOLTS

1.0

1.5

2.0

2.5

3.5

4.0

5.0

6.0

7.0

8.0

9.0

155

140

125

120

110

100

FIGURE 1

DESIGN DATA

CASE:

Hermetically sealed glass

case. DO – 35 outline.

LEAD MATERIAL:

Copper clad steel.

LEAD FINISH:

Tin / Lead

THERMAL RESISTANCE: (R

OJEC):

250

C/W maximum at L = .375 inch

THERMAL IMPEDANCE: (Z

OJX): 35

C/W maximum

NOTE 1

NOTE 2

NOTE 3

Zener voltage tolerance on "A" suffix is +5%. No Suffix denotes + 10% tolerance,

"C" suffix denotes + 2% tollerance and "D" suffix denotes + 1% tolerance.

Zener voltage is measured with the device junction in thermal equilibrium at an ambient

temperature of 25°C + 3°C.

Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal

to 10% of 1ZT

POLARITY:

Diode to be operated with

the banded (cathode) end positive.

MOUNTING POSITION:

Any.

6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841

PHONE (978) 620-2600

FAX (978) 689-0803

WEBSITE: http://www.microsemi.com

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