1N4739DUR [MICROSEMI]

Zener Diode, 9.1V V(Z), 1%, 1W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2;


型号：	1N4739DUR
厂家：	Microsemi
描述：	Zener Diode, 9.1V V(Z), 1%, 1W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2
文件：	总3页 (文件大小：140K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

1N4728UR thru 1N4764AUR,e3

(or MLL4728A thru MLL4764A,e3)

SURFACE MOUNT 1.0 W

GLASS ZENER DIODES

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

DESCRIPTION

APPEARANCE

This surface mountable 1 watt Zener diode series is electrically equivalent to

the 1N4728A thru 1N4764A registration in the DO-41 equivalent package

except that it meets the JEDEC surface mount outline DO-213AB. It is an

ideal selection for applications of high density and low parasitic requirements

for voltage regulation. Standard voltage tolerance is +/- 5% with tighter

tolerances available down to 1%. With its glass hermetic qualities, it may

also be used for high reliability applications when required by a source

control drawing (SCD).

DO-213AB

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

FEATURES

APPLICATIONS / BENEFITS

•

Electrically similar to the JEDEC registered 1N4728 thru

1N4764 zener series

•

Regulates voltage over a broad operating current

and temperature range

•

Zener voltages available 3.3V to 100V

•

Wide selection from 3.3 to 100 V

Leadless package for surface mounting

Ideal for high density mounting

Standard voltage tolerances are +/- 5% with “A” suffix and

10 % with no suffix identification

•

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

C or D suffix respectively

Nonsensitive to ESD

Hermetically sealed glass package

Specified capacitance (see Figure 2)

Inherently radiation hard per MicroNote 050

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 also available as SMAJ4728A

to SMAJ4764A and SMAJ4728A to SMAJ4764A

•

RoHS Compliant devices also available by adding e3 suffix

Plastic body axial-leaded Zener equivalents are also

available as 1N4728A to 1N4764A

MAXIMUM RATINGS

MECHANICAL AND PACKAGING

•

Power dissipation at 25^ºC: 1.0 watts (also see derating

in Figure 1).

•

CASE: Hermetically sealed DO-213AB glass MELF

TERMINALS: Tin-Lead or RoHS Compliant

annealed matte-Tin plating solderable per MIL-STD-

750, method 2026

•

Operating and Storage temperature: -65^ºC to +175^ºC

Thermal Resistance: 50 ^ºC/W junction to end cap, or

130^ºC/W junction to ambient when mounted on FR4 PC

board (1 oz Cu) with recommended footprint (see last

page)

•

POLARITY: Cathode indicated by band. Diode to

be operated with the banded end positive with

respect to the opposite end for Zener regulation

•

Steady-State Power: 1.00 watts at T_EC< 125^oC, or 1.00

watts at T_A< 45^ºC when mounted on FR4 PC board and

recommended footprint as described for thermal

resistance (also see Figure 1)

•

MARKING: Cathode band only

TAPE & REEL optional: Standard per EIA-481-B

with 12 mm tape, 1500 per 7 inch reel or 5000 per

13 inch reel (add “TR” suffix to part number)

•

Forward voltage @200 mA: 1.2 volts (maximum)

Solder Temperatures: 260 ^ºC for 10 s (max)

•

WEIGHT: 0.05 grams

See package dimensions & recommended mounting

pad on last page

10-18-2005 REV D

Microsemi

Page 1

Scottsdale Division

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

1N4728UR thru 1N4764AUR,e3

(or MLL4728A thru MLL4764A,e3)

SURFACE MOUNT 1.0 W

GLASS ZENER DIODES

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

ELECTRICAL CHARACTERISTICS @ T_C= 30^oC

MAXIMUM

DYNAMIC

MAXIMUM

REVERSE

CURRENT

MAXIMUM

REGULATOR

CURRENT

T_A= 50^oC

I_ZM

MAXIMUM

KNEE

IMPEDANCE

(NOTE2)

Z_ZK@ I_ZK

Ohms

MAXIMUM

(SURGE)

CURRENT

(NOTE 3)

I_S

ZENER

TEST

VOLTAGE

TEST

CURRENT

VOLTAGE CURRENT IMPEDANCE

TYPE

NUMBER

(NOTE 1 & 5)

(NOTE 4)

V_Z

(Note 2)

Z_ZT@ I_ZT

Ohms

I_ZT

I_R@ V_R

μA

100

V_R

Volts

I_ZK

1.0

0.5

Volts

3.3

3.6

3.9

4.3

4.7

5.1

5.6

6.2

6.8

7.5

8.2

9.1

100

1N4728AUR

1N4729AUR

1N4730AUR

1N4731AUR

1N4732AUR

1N4733AUR

1N4734AUR

1N4735AUR

1N4736AUR

1N4737AUR

1N4738AUR

1N4739AUR

1N4740AUR

1N4741AUR

1N4742AUR

1N4743AUR

1N4744AUR

1N4745AUR

1N4746AUR

1N4747AUR

1N4748AUR

1N4749AUR

1N4750AUR

1N4751AUR

1N4752AUR

1N4753AUR

1N4754AUR

1N4755AUR

1N4756AUR

1N4757AUR

1N4758AUR

1N4759AUR

1N4760AUR

1N4761AUR

1N4762AUR

1N4763AUR

1N4764AUR

276

252

234

217

193

178

162

146

133

121

110

100

400

500

550

600

700

750

1000

1500

2000

3000

1380

1260

1190

1070

970

890

810

730

660

605

550

500

454

414

380

344

304

285

250

225

205

190

170

150

135

125

115

110

3.5

4.0

4.5

5.0

0.5

7.6

8.4

9.1

9.9

11.4

12.2

13.7

15.2

16.7

18.2

20.6

22.8

25.1

27.4

29.7

32.7

35.8

38.8

42.6

47.1

51.7

56.0

62.2

69.2

76.0

0.25

15.5

12.5

11.5

10.5

9.5

8.5

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.7

3.3

3.0

2.8

2.5

110

125

150

175

200

250

350

NOTE 1: The type numbers shown with an “A” suffix have a +/-5% tolerance on the nominal Zener voltage. Also available with suffix “C” for +/-2%, and

“D” for +/-1%, while the absence of a suffix letter denotes +/- 10% tolerance.

NOTE 2: The Zener impedance is derived from the 60Hz ac voltage, which results when an ac current having an rms value equal to 10% of the dc Zener

current (I_ZTor I_ZK) is superimposed on I_ZTor I_ZK. Zener impedance is measured at two points to ensure a sharp knee on the breakdown curve and

eliminate unstable units.

NOTE 3: The reverse surge current is measured at 25^oC ambient using a ½ square wave or equivalent sine wave pulse 1/120 second duration

superimposed on I_ZT

NOTE 4: Voltage measurements to be performed 90 seconds after application of dc current.

NOTE 5: This product series has also been previously identified as the MLL4728A thru MLL4764A series. This alternate name may still be used.

10-18-2005 REV D

Microsemi

Scottsdale Division

Page 2

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

1N4728UR thru 1N4764AUR,e3

(or MLL4728A thru MLL4764A,e3)

SURFACE MOUNT 1.0 W

GLASS ZENER DIODES

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

GRAPHS

STEADY-STATE POWER DERATING

T_EC

T_A

Temperature (^oC)

FIGURE 1

Power Derating Curve Where T_ECis End Cap Temp

and T_Ais Ambient Temperature on FR4 PC board.

FIGURE 2

PACKAGE DIMENSIONS

PAD LAYOUT

INCHES

MILLIMETERS

MIN MAX

2.39 2.66

INCHES

.276

DIM

MIN

MAX

0.105

0.205

0.022

7.00

1.8

0.094

0.189

0.016

0.070

0.110

4.80

0.41

5.20

0.55

2.8

10-18-2005 REV D

Microsemi

Page 3

Scottsdale Division

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

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