MX1N978DE3 datasheet, PDF - EEWORLD Datasheet

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MX1N978DE3: DescriptionZener Diode, 51V V(Z), 2%, 0.417W, Silicon, Unidirectional, DO-204AA, ROHS COMPLIANT, HERMETIC SEALED, GLASS, DO-7, 2 PIN; CategoryDiscrete semiconductor diode; File Size168KB，3 Pages; ManufacturerMicrosemi; Websitehttps://www.microsemi.com; Environmental Compliance

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MX1N978DE3 Overview

Zener Diode, 51V V(Z), 2%, 0.417W, Silicon, Unidirectional, DO-204AA, ROHS COMPLIANT, HERMETIC SEALED, GLASS, DO-7, 2 PIN

MX1N978DE3 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Parts packaging code	DO-7
package instruction	O-LALF-W2
Contacts	2
Reach Compliance Code	unknow
ECCN code	EAR99
Shell connection	ISOLATED
Configuration	SINGLE
Diode component materials	SILICON
Diode type	ZENER DIODE
JEDEC-95 code	DO-204AA
JESD-30 code	O-LALF-W2
JESD-609 code	e3
Number of components	1
Number of terminals	2
Package body material	GLASS
Package shape	ROUND
Package form	LONG FORM
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
polarity	UNIDIRECTIONAL
Maximum power dissipation	0.417 W
Certification status	Not Qualified
Nominal reference voltage	51 V
surface mount	NO
technology	ZENER
Terminal surface	MATTE TIN
Terminal form	WIRE
Terminal location	AXIAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum voltage tolerance	2%
Working test current	2.5 mA
Base Number Matches	1

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1N957B thru 1N992B, e3 DO-7

Silicon 500 mW Zener Diodes

SCOTTSDALE DIVISION

DESCRIPTION

The popular 1N957B thru 1N992B series of 0.5 watt Zener voltage regulators

provides a selection from 6.8 to 200 volts in standard 5% or 10% tolerances

as well as tighter tolerances identified by different suffix letters on the part

number. The somewhat larger DO-7 packaging option offers a “straight-

through” soldered internal connection with a larger active die element than

otherwise provided in the smaller DO-35 package when needed. Microsemi

also offers numerous other Zener products to meet higher and lower power

applications.

APPEARANCE

WWW .

Microsemi

DO-7

(DO-204AA)

IMPORTANT:

For the most current data, consult

MICROSEMI’s

website:

http://www.microsemi.com

FEATURES

•

JEDEC registered 1N957B to 1N992B series

Internal metallurgical bonding equivalent to “-1” suffix

identification on other military DO-7 Zeners

Options for screening in accordance with MIL-PRF-

19500 for JAN, JANTX, JANTXV, and JANS are

available by adding MQ, MX, MV, or MSP prefixes

respectively to part numbers.

Surface mount equivalents in DO-213AA also

available as MLL957B to MLL992B or with “-1” suffix

(consult factory for other surface mount options)

RoHS Compliant devices available by adding e3 suffix

Smaller DO-35 glass body axial-leaded Zener

equivalents are also available

•

APPLICATIONS / BENEFITS

Regulates voltage over a broad operating current

and temperature range

Extensive selection from 6.8 to 200 V

Standard voltage tolerances are plus/minus 5%

with B suffix, 10 % with A suffix identification

Tight tolerances available in plus or minus 2% or

1% with C or D suffix respectively

Flexible axial-lead mounting terminals

Nonsensitive to ESD

Capacitance also specified (see Figure 3)

Inherently radiation hard as described in

Microsemi MicroNote 050

•

MAXIMUM RATINGS

•

Operating and Storage temperature: -65

C to +175

Thermal Resistance: 300 C/W junction to lead at 3/8

(10 mm) lead length from body, or 360

C/W junction

to ambient when mounted on FR4 PC board (1 oz

Cu) with 4 mm

copper pads and track width 1 mm,

length 25 mm

Steady-State Power: 0.5 watts at T

< 25

C 3/8 inch

(10 mm) from body or 0.417 W at T

< 25

C when

mounted on FR4 PC board as described for thermal

resistance above (also see Figure1)

Forward voltage @200 mA: 1.1 volts (maximum) for

1N957B – 1N985B and 1.3 V for 1N985 – 1N992B

Solder Temperatures: 260 C for 10 s (max)

•

MECHANICAL AND PACKAGING

CASE: Hermetically sealed axial-lead glass DO-7

(DO-204AA) package

TERMINALS: Tin-Lead or RoHS Compliant

annealed matte-Tin plating solderable per MIL-

STD-750, method 2026

POLARITY: Cathode indicated by band. Diode to

be operated with the banded end positive with

respect to the opposite end for Zener regulation

MARKING: Part number

TAPE & REEL option: Standard per EIA-296 (add

“TR” suffix to part number)

WEIGHT: 0.2 grams

See package dimensions on last page

•

1N957B – 992B, e3 (DO-7)

•

2005

10-18-2005 REV C

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 1

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