1N4745AP Microsemi, 1N4745AP Datasheet

1N4745AP

Manufacturer Part Number

1N4745AP

Description

(1N4728AP - 1N4764AP) Zener Diodes

Manufacturer

Microsemi

Datasheet

1.1N4745AP.pdf (3 pages)

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8-20-2003 REV B

IMPORTANT: For the most current data, consult MICROSEMI’s website:

www.DataSheet4U.com

The popular 1N4728AP thru 1N4764AP series of 1.0 watt Zeners provides

voltage regulation in a selection from 3.3 to 100 volts in 5% tolerances with

other tighter tolerances also available as identified by different suffix letters

in the part number.

classified as Level 1 with no dry pack required. They are also available in

various military screening levels by adding a prefix identifier as described in

the Features below. These plastic molded Zeners with a P suffix provide a

lower thermal resistance compared to the glass-body (G suffix) option for

these same JEDEC part numbers. Both package options are available by

Microsemi. Microsemi also offers numerous other Zener products to meet

higher and lower power and test current applications.

•

JEDEC registered 1N4728A to 1N4764A

Extensive voltage selection from 3.3 to 100 V

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 available as

SMAJ4728A to SMAJ4764A and MLL4728A to

MLL4764A (consult factory for others)

Power dissipation at 25

derating in Figure 1).

Operating and Storage temperature: -65

+150

Thermal Resistance: 45

3/8 (10 mm) lead length from body, or 105

junction to ambient when mounted on FR4 PC

board (1 oz Cu) with 4 mm

track width 1 mm, length 25 mm

Steady-State Power: 1.0 watts at T

inch (10 mm) from body or at T

mounted on FR4 PC board as described for

thermal resistance above (also see Figure 1)

Forward voltage @200 mA: 1.2 volts (maximum)

Solder Temperatures: 260

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

MAXIMUM RATINGS

S C O T T S D A L E D I V I S I O N

FEATURES

These plastic encapsulated Zeners are moisture

C: 1.0 watts (also see

C/W junction to lead at

DESCRIPTION

C for 10 s (max)

copper pads and

< 45

< 105

C when

C to

C/W

C 3/8

Scottsdale Division

Microsemi

http://www.microsemi.com

1N4728AP thru 1N4764AP (PLASTIC)

•

Regulates voltage over a broad operating current and

Tight tolerances available in plus or minus 2% or 1%

Flexible axial-lead mounting terminals

Nonsensitive to ESD per MIL-STD-750 Method 1020

Moisture classification is Level 1 per IPC/JEDEC J-

CASE: Void-free transfer molded thermosetting

TERMINALS: Leads, tin-lead plated solderable per

POLARITY: Cathode indicated by band. Diode to be

MARKING: Part number

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

WEIGHT: 0.7 grams

See package dimensions on last page

temperature range

Standard voltage tolerances are plus/minus 5% with

A suffix and 10 % with no suffix identification

with C or D suffix respectively

STD-020B with no dry pack required

epoxy body meeting UL94V-0

MIL-STD-750, method 2026

operated with the banded end positive with respect to

the opposite end for Zener regulation

“TR” suffix to part number)

Silicon 1 Watt Zener Diodes

MECHANICAL AND PACKAGING

APPLICATIONS / BENEFITS

DO-41 or

DO-204AL

(Plastic)

APPEARANCE

Page 1

Related parts for 1N4745AP

1N4745AP Summary of contents

Page 1

... JEDEC part numbers. Both package options are available by Microsemi. Microsemi also offers numerous other Zener products to meet higher and lower power and test current applications. IMPORTANT: For the most current data, consult MICROSEMI’s website: FEATURES • ...

Page 2

... Zener impedance is measured at two points to ensure a sharp knee on the ambient using a ½ square wave or equivalent sine wave pulse 1/120 second duration = 25ºC (+8, -2ºC) and 90 seconds after application of dc current. L Microsemi Scottsdale Division MAXIMUM TEST MAXIMUM KNEE CURRENT (SURGE) ...

Page 3

... E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 1N4728AP thru 1N4764AP (PLASTIC) GRAPHS NOMINAL ZENER VOLTAGE (VOLTS) FIGURE 2 Temp. Coeff. vs. Zener Voltage PACKAGE DIMENSIONS (DO-41 or DO-204AL) Microsemi Scottsdale Division Silicon 1 Watt Zener Diodes FIGURE 3 Capacitance vs. Voltage for Representative Types Page 3 ...

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