JAN1N4957D - Microsemi Corporation

VOIDLESS-HERMETICALLY-SEALED

5 WATT GLASS ZENER DIODES

Microsemi

Scottsdale Division

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

Page 1

2-4-2005 REV C

WWW.Microsemi .COM

SCOTTSDALE DIVISION

1N4954 thru 1N4996, 1N5968 thru 1N5969, and

1N6632 thru 1N6637

1N4954 thru 1N4996

1N5968 thru 1N5969

1N6632 thru 1N6637

DESCRIPTION APPEARANCE

This Zener Voltage Regulator series is military qualified to MIL-PRF-

19500/356 and is ideal for high-reliability applications where a failure

cannot be tolerated. These industry-recognized 5 Watt Zener Voltage

Regulators are hermetically sealed with voidless-glass construction using

an internal metallurgical bond. It includes Zener selections from 3.3 to 390

volts in standard 5% tolerances as well as tighter tolerances identified by

different suffix letters on the part number. They are also available in

surface-mount packages (see separate data sheet for 1N4954US thru

1N4996US, 1N5968US thru 1N5969US, and 1N6632US thru 1N6637US).

Microsemi also offers numerous other Zener products to meet higher and

lower power ratings in both thru-hole and surface mount packages.

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

FEATURES APPLICATIONS / BENEFITS

• Popular JEDEC registered series

• Voidless hermetically sealed glass package

• Extremely robust construction

• Triple-layer passivation

• Internal “Category I” Metallurgical bonds for 1N4954

thru 1N4996, and “Category III” for 1N6632 thru

1N6637 as well as 1N5968 thru 1N5959

• JAN, JANTX, JANTXV, and JANS available per MIL-

PRF-19500/356

• Surface mount equivalents also available in a square

end-cap MELF configuration with “US” suffix (see

separate data sheet for 1N4954US thru 1N4996US,

1N6632US thru 1N6637US and 1N5968US thru

1N5969US

• Regulates voltage over a broad operating current and

temperature range

• Extensive selection from 3.3 to 390 V

• Standard voltage tolerances are plus/minus 5% with

no suffix

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

with C or D suffix respectively

• Flexible axial-lead mounting terminals

• Nonsensitive to ESD per MIL-STD-750 Method 1020

• Inherently radiation hard as described in Microsemi

MicroNote 050

MAXIMUM RATINGS MECHANICAL AND PACKAGING

• Operating Temperature: -65oC to +175oC.

• Storage Temperature: -65oC to +175oC.

• Power Dissipation: 5 Watts @ TA = 25oC

• Thermal Resistance: 22oC/W junction to lead at 3/8

inch (10 mm) from body for 1N4954 thru 1N4996 and

30oC/W for 1N6632 thru 1N6637, 1N5968 thru

1N5969

• Thermal Impedance at 10 ms: 1.8oC/W for 1N4954

thru 1N4996, and 3.0oC/W for both the 1N6632 thru

1N6637 & 1N5968 thru 1N5969

• Forward Voltage: 1.50 V at 1.0 A

• CASE: Hermetically sealed voidless hard glass with

Tungsten slugs

• TERMINATIONS: Axial-leads are Tin/Lead (Sn/Pb)

over Copper except for JANS with solid Silver (Ag) and

no finish

• MARKING: Body painted and part number, etc.

• POLARITY: Cathode indicated by band

• Tape & Reel option: Standard per EIA-296

• Weight: 750 mg

“E” Package

VOIDLESS-HERMETICALLY-SEALED

5 WATT GLASS ZENER DIODES

SCOTTSDALE DIVISION

1N4954 thru 1N4996, 1N5968 thru 1N5969, and

1N6632 thru 1N6637

WWW.Microsemi .COM 1N4954 thru 1N4996

1N5968 thru 1N5969

1N6632 thru 1N6637

ELECTRICAL CHARACTERISTICS @ 25oC

MAXIMUM ZENER

IMPEDANCE

MAXIMUM REVERSE

LEAKAGE CURRENT

VOLTAGE

NOMINAL

ZENER

VOLTAGE

VZ @ IZT

TEST

CURRENT

IZT

ZZ @

IZT

ZZK* @

IZK=1mA

VOLTAGE

REGULATION

(Note 1)

∆VZ

IR VR

MAXIMUM

TEMPERATURE

COEFF.

αVZ @ IZT

MAXIMUM

CONTINUOUS

CURRENT

IZM

SURGE

CURRENT

IZSM

TYPE*

VOLTS mA OHMS OHMS VOLTS µA VOLTS %/oC mA AMPS

1N6632

1N6633

1N6634

1N6635

1N6636

1N6637

3.3

3.6

3.9

4.3

4.7

5.1

380

350

320

290

260

240

3.0

2.5

2.0

1.5

500

450

400

0.90

0.80

0.75

0.70

0.60

0.50

300

250

175

1.0

-.075

-.070

-.060

-.050

+/-.025

+/-.030

1440

1320

1220

1100

1010

930

20.0

18.7

17.6

16.4

15.3

14.4

1N5968

1N5969

1N4954

1N4955

1N4956

5.6

6.2

6.8

7.5

8.2

220

175

150

1.0

1.5

400

1000

800

600

0.4

0.5

0.7

5000

1000

150

100

4.28

4.74

5.2

5.7

6.2

.04

.05

.06

865

765

700

630

580

29.3

26.4

1N4957

1N4958

1N4959

1N4960

1N4961

9.1

10.0

150

125

100

2.0

2.5

3.0

400

125

130

140

145

0.7

0.8

0.9

6.9

7.6

8.4

9.1

9.9

.06

.07

.08

520

475

430

395

365

1N4962

1N4963

1N4964

1N4965

1N4966

3.5

4.0

4.5

5.0

150

155

160

165

170

1.0

1.1

1.2

1.5

1.8

11.4

12.2

13.7

15.2

16.7

.08

.085

315

294

264

237

216

9.0

8.0

7.0

1N4967

1N4968

1N4969

1N4970

1N4971

5.0

6.0

175

180

190

200

220

2.0

2.5

2.8

3.0

18.2

20.6

22.8

25.1

27.4

.090

.095

198

176

158

144

132

6.5

6.0

5.5

5.0

4.5

1N4972

1N4973

1N4974

1N4975

1N4976

230

240

250

270

320

3.0

3.3

3.5

4.0

4.4

29.7

32.7

35.8

38.8

42.6

.095

122

110

100

4.0

3.5

3.2

3.0

2.8

1N4977

1N4978

1N4979

1N4980

1N4981

400

500

620

720

760

5.0

5.5

6.0

6.6

7.5

47.1

51.7

56.0

62.2

69.2

.100

63.0

58.0

52.5

2.5

2.2

2.0

1.8

1.6

1N4982

1N4983

1N4984

1N4985

1N4986

100

110

120

130

150

110

125

170

190

330

800

1000

1150

1250

1500

8.0

9.0

76.0

83.6

91.2

98.8

114.0

.100

.105

47.5

43.0

39.5

36.6

31.6

1.4

1.2

1.00

0.80

0.75

1N4987

1N4988

1N4989

1N4990

1N4991

160

180

200

220

240

350

450

500

550

650

1650

1750

1850

2000

2050

121.6

136.8

152

167

182

.105

.110

.115

29.4

26.4

23.6

21.6

19.8

0.70

0.60

0.50

0.40

1N4992

1N4993

1N4994

1N4995

1N4996

270

300

330

360

390

800

950

1175

1400

1800

2100

2150

2200

2300

2500

206

228

251

274

297

.120

17.5

15.6

14.4

13.0

12.0

0.35

0.30

0.25

0.22

0.20

*IZK = 5 mA for 1N5968

NOTE 1: Maximum voltage change ∆VZ between 10% of IZM and 50% of IZM

Microsemi

Scottsdale Division

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

Page 2

2-4-2005 REV C

VOIDLESS-HERMETICALLY-SEALED

5 WATT GLASS ZENER DIODES

SCOTTSDALE DIVISION

1N4954 thru 1N4996, 1N5968 thru 1N5969, and

1N6632 thru 1N6637

WWW.Microsemi .COM 1N4954 thru 1N4996

1N5968 thru 1N5969

1N6632 thru 1N6637

SYMBOLS & DEFINITIONS

Symbol Definition

VZ Zener Voltage: The zener voltage the device will exhibit at a specified current (IZ) in its breakdown region.

IZ, IZT, IZK Regulator Current: The dc regulator current (IZ), at a specified test point (IZT), or near breakdown knee (IZK).

ZZT or ZZK Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region

at a specified rms current modulation (typically 10% of IZT or IZK) and superimposed on IZT or IZK respectively.

VF Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.

IR Maximum Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and

temperature.

IZM Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.

IZSM Maximum Zener Surge Current: The nonrepetitive peak value of zener surge current at a specified wave form.

GRAPHS

FIGURE 1 FIGURE 2

POWER DISSIPATION vs. LEAD SURGE POWER vs.

TEMPERATURE DERATING CURVE SURGE DURATION

FIGURE 3

TYPICAL ZENER IMPEDANCE vs.

ZENER CURRENT

Microsemi

Scottsdale Division

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

Page 3

2-4-2005 REV C

VOIDLESS-HERMETICALLY-SEALED

5 WATT GLASS ZENER DIODES

Microsemi

Scottsdale Division

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

Page 4

2-4-2005 REV C

WWW.Microsemi .COM

SCOTTSDALE DIVISION

1N4954 thru 1N4996, 1N5968 thru 1N5969, and

1N6632 thru 1N6637

1N4954 thru 1N4996

1N5968 thru 1N5969

1N6632 thru 1N6637

PACKAGE DIMENSIONS