1N749A datasheet, PDF - EEWORLD Datasheet

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1N749A: Description4.3 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35; CategoryDiscrete semiconductor diode; File Size20KB，2 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/; Environmental Compliance

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1N749A Overview

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

1N749A Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Fairchild
Parts packaging code	DO-35
package instruction	GLASS PACKAGE-2
Contacts	2
Reach Compliance Code	unknown
ECCN code	EAR99
Is Samacsys	N
Shell connection	ISOLATED
Configuration	SINGLE
Diode component materials	SILICON
Diode type	ZENER DIODE
Maximum dynamic impedance	18 Ω
JEDEC-95 code	DO-35
JESD-30 code	O-LALF-W2
JESD-609 code	e3
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 APPLICABLE
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	Matte Tin (Sn)
Terminal form	WIRE
Terminal location	AXIAL
Maximum time at peak reflow temperature	NOT APPLICABLE
Maximum voltage tolerance	5%
Working test current	20 mA
Base Number Matches	1

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1N746A - 1N759A Series

Discrete POWER & Signal

Technologies

1N746A - 1N759A Series Half Watt Zeners

Absolute Maximum Ratings*

Parameter

Storage Temperature Range

Maximum Junction Operating Temperature

Lead Temperature (1/16” from case for 10 seconds)

Total Device Dissipation

Derate above 25°C

TA = 25°C unless otherwise noted

Tolerance: A = 5%

Value

-65 to +200

+ 175

+ 230

500

3.33

Units

°C

mW/°C

These ratings are limiting values above which the serviceability of the diode may be impaired.

DO-35

NOTES:

These ratings are based on a maximum junction temperature of 200 degrees C.

These are steady state limits. The factory should be consulted on applications involving pulsed

or low duty cycle operations.

Electrical Characteristics

Device

1N746A

1N747A

1N748A

1N749A

1N750A

1N751A

1N752A

1N753A

1N754A

1N755A

1N756A

1N757A

1N758A

1N759A

TA = 25°C unless otherwise noted

(V)

3.3

3.6

3.9

4.3

4.7

5.1

5.6

6.2

6.8

7.5

8.2

9.1

(Ω)

7.0

5.0

6.0

8.0

(mA)

(µA)

2.0

1.0

0.1

(V)

1.0

=150°C

(µA)

(V)

1.0

(%/°C)

- 0.070

- 0.065

- 0.060

+/- 0.055

+/- 0.030

+ 0.038

+ 0.045

+ 0.050

+ 0.058

+ 0.062

+ 0.068

+ 0.075

+ 0.077

(mA)

110

100

IZM (Maximum Zener Current Rating) Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener voltage (VZ) is known

at the operating point, the maximum zener current may be increased and is limited by the derating curve.

1997 Fairchild Semiconductor Corporation

1N749A Related Products

	1N749A	1N750A	1N752A	1N753A	1N757A	1N758A	1N759A	IN746A
Description	4.3 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35	4.7 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35	5.6 V, 0.4 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE	6.2 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH	9.1 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35	10 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35	12 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-35	ZENER DIODE,SINGLE, TWO TERMINAL,3.3V V(Z),5%,DO-35
Diode type	ZENER DIODE	ZENER DIODE	ZENER DIODE	ZENER DIODE	ZENER DIODE	ZENER DIODE	ZENER DIODE	VOLTAGE REGULATOR DIODE
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to	conform to	-
Maker	Fairchild	Fairchild	Fairchild	Fairchild	Fairchild	Fairchild	Fairchild	-
Parts packaging code	DO-35	DO-35	DO-35	DO-35	DO-35	DO-35	DO-35	-
package instruction	GLASS PACKAGE-2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	-
Contacts	2	2	2	2	2	2	2	-
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	compliant	-
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	-
Is Samacsys	N	N	N	N	N	N	N	-
Shell connection	ISOLATED	ISOLATED	ISOLATED	ISOLATED	ISOLATED	ISOLATED	ISOLATED	-
Configuration	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	-
Diode component materials	SILICON	SILICON	SILICON	SILICON	SILICON	SILICON	SILICON	-
Maximum dynamic impedance	18 Ω	16 Ω	8 Ω	7 Ω	6 Ω	7 Ω	10 Ω	-
JEDEC-95 code	DO-35	DO-35	DO-35	DO-35	DO-35	DO-35	DO-35	-
JESD-30 code	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	O-LALF-W2	-
JESD-609 code	e3	e3	e3	e3	e3	e3	e3	-
Number of components	1	1	1	1	1	1	1	-
Number of terminals	2	2	2	2	2	2	2	-
Maximum operating temperature	175 °C	175 °C	175 °C	175 °C	175 °C	200 °C	175 °C	-
Package body material	GLASS	GLASS	GLASS	GLASS	GLASS	GLASS	GLASS	-
Package shape	ROUND	ROUND	ROUND	ROUND	ROUND	ROUND	ROUND	-
Package form	LONG FORM	LONG FORM	LONG FORM	LONG FORM	LONG FORM	LONG FORM	LONG FORM	-
Peak Reflow Temperature (Celsius)	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	-
polarity	UNIDIRECTIONAL	UNIDIRECTIONAL	UNIDIRECTIONAL	UNIDIRECTIONAL	UNIDIRECTIONAL	UNIDIRECTIONAL	UNIDIRECTIONAL	-
Maximum power dissipation	0.5 W	0.5 W	0.5 W	0.5 W	0.5 W	0.5 W	0.5 W	-
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-
Nominal reference voltage	4.3 V	4.7 V	5.6 V	6.2 V	9.1 V	10 V	12 V	-
surface mount	NO	NO	NO	NO	NO	NO	NO	-
technology	ZENER	ZENER	ZENER	ZENER	ZENER	ZENER	ZENER	-
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	-
Terminal form	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	-
Terminal location	AXIAL	AXIAL	AXIAL	AXIAL	AXIAL	AXIAL	AXIAL	-
Maximum time at peak reflow temperature	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	-
Maximum voltage tolerance	5%	5%	5%	5%	5%	5%	5%	-
Working test current	20 mA	20 mA	20 mA	20 mA	20 mA	20 mA	20 mA	-
Base Number Matches	1	1	1	1	1	1	1	-

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