1N5540A datasheet, PDF - EEWORLD Datasheet

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1N5540A: Description20 V, 0.4 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH; CategoryDiscrete semiconductor diode; File Size185KB，5 Pages; ManufacturerMicrosemi; Websitehttps://www.microsemi.com

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1N5540A Overview

20 V, 0.4 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AH

1N5540A Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Microsemi
Parts packaging code	DO-35
package instruction	HERMETICALLY SEALED, GLASS PACKAGE-2
Contacts	1
Reach Compliance Code	unknown
ECCN code	EAR99
Shell connection	ISOLATED
Configuration	SINGLE
Diode component materials	SILICON
Diode type	ZENER DIODE
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
Minimum operating temperature	-65 °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	20 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	10%
Working test current	1 mA

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1N5518B thru 1N5546B-1

Low Voltage Avalanche

500 mW Zener Diodes DO-35

Qualified per MIL-PRF-19500/437

DESCRIPTION

The 1N5518 thru 1N5546 series of 0.5 watt axial-leaded glass Zener Voltage Regulators

provides a selection from 3.3 to 33 volts with tolerances ranging from plus/minus 1% to 20%.

The standard tolerance is plus/minus 5% with the B suffix unless ordered otherwise. These

axial-leaded glass DO-35 Zeners are also available with an internal metallurgical bond option.

This type of bonded Zener package construction is 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 latest information, visit our website

http://www.microsemi.com.

Available on

commercial

versions

Qualified Levels:

JAN, JANTX and

JANTXV

FEATURES

•

JEDEC registered 1N5518 thru 1N5546.

Voltage tolerances of plus/minus 20%, 10%, 5%, 2%, and 1% available. See

Note 1

on page 3.

Internal metallurgical bond option available with “-1” suffix.

JAN, JANTX, and JANTXV qualification per MIL-PRF-19500/437 available (requires metallurgical

bond option as well as plus/minus 5% voltage tolerance or tighter with B-1, C-1 or D-1 suffix).

RoHS compliant versions available (commercial grade only).

DO-35 (DO-204AH)

Package

Also available in:

DO-213AA MELF

(surface mount)

1N5518BUR-1 thru

1N5546BUR-1

APPLICATIONS / BENEFITS

•

Regulates voltage over a broad operating current and temperature range.

Guaranteed voltage regulation (∆V

) from I

to I

Voltage selection from 3.3 to 33 V.

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”

which is available at

Microsemi.com.

MAXIMUM RATINGS

Parameters/Test Conditions

Junction and Storage Temperature

(Note 1)

Steady-State Power

(Also see derating in

Figure 2)

Symbol

and T

STG

(Note 2)

Value

-65 to +175

0.5

250

300

1.1

260

Unit

Thermal Resistance Junction-to-Lead

(Note 3)

Thermal Resistance Junction-to-Ambient

Forward Voltage @ 200 mA

Solder Pad Temperature @ 10 s

ӨJL

ӨJA

C/W

MSC – Lawrence

6 Lake Street,

Lawrence, MA 01841

1-800-446-1158

(978) 620-2600

Fax: (978) 689-0803

MSC – Ireland

Gort Road Business Park,

Ennis, Co. Clare, Ireland

Tel: +353 (0) 65 6840044

Fax: +353 (0) 65 6822298

Website:

www.microsemi.com

Notes:

1. At T

< 50

C 3/8 inch (10 mm) from body or 0.48 W at T

< 25

C when mounted on FR4 PC board as

described for thermal resistance above.

2. At 3/8 (10 mm) lead length from body.

3. When mounted on FR4 PC board (1 oz Cu) with 4 mm

copper pads and track width 1 mm, length 25 mm.

T4-LDS-0037-1, Rev 1 (111456)

Page 1 of 5

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