1N5518BUR-1 thru 1N5546BUR-1 Datasheet by Microsemi Corporation

I OMI'crosemi ’M W e htlQ://va.micmsemi.ccm e Note 1 Figure 3 “MicmNote 050 n Fl urez Moles m m ee Figure 2 Also available in E lN551EB-1 lhru lNSSAGE-I MSG - Lawrence MSG - Ireland www.microsemi.com

1N5518BUR-1 thru 1N5546BUR-1

Available on

commercial

versions

Low Voltage Avalanche

500 mW Zener Diodes

Qualified per MIL-PRF-19500/437

Qualified Levels:

JAN, JANTX and

JANTXV

DESCRIPTION

The 1N5518BUR-1 thru 1N5546BUR-1 series of 0.5 watt glass surface mount 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 glass surface mount devices are available with an internal metallurgical

bond option. This type of bonded Zener package construction is also in JAN, JANTX, and

JANTXV military qualifications. Microsemi also offers numerous other Zener products to meet

higher and lower power applications.

DO-213AA MELF

Package

Also available in:

DO-35 (DO-204AH)

(axial-leaded)

1N5518B-1 thru 1N5546B-1

Important: For the latest information, visit our website http://www.microsemi.com.

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.

• JAN, JANTX, and JANTXV qualification per MIL-PRF-19500/437 available.

• RoHS compliant versions available (commercial grade only).

APPLICATIONS / BENEFITS

• Regulates voltage over a broad operating current and temperature range.

• Extensive selection from 3.3 to 33 V.

• Hermetically sealed surface mount package.

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

• Minimal capacitance (see Figure 3).

• Inherently radiation hard as described in Microsemi’s “MicroNote 050” which is available at

Microsemi.com.

MAXIMUM RATINGS

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

Parameters/Test Conditions

Symbol

Value

Unit

Junction and Storage Temperature

TJ and TSTG

-65 to +175

Steady-State Power

(Note 1)

(Also see derating in Figure 2)

PD 0.5 W

Thermal Resistance Junction-to-End Cap (Note 2)

RӨJEC

100

oC/W

Thermal Resistance Junction-to-Ambient (Note 2)

RӨJA

300

oC/W

Thermal Impedance

ZӨJX

oC/W

Forward Voltage  200mA

1.1

Solder Pad Temperature @ 10 s

TSP

260

Notes: 1. At end cap temperature TEC < 125 oC or at ambient TA < 50 ºC when mounted on FR4 PC board as

described for thermal resistance above (see Figure 2 for derating). Derate to 0 at +175 oC.

2. When mounted on FR4 PC board (1 oz Cu) with recommended footprint (see last page).

Package Dimensions Reliability Level RoHS Com Iiance Metallurgical Bond JEDEC tyne number Elemrical Charamerislics Package gee Zener Voltage Tolerance

1N5518BUR-1 thru 1N5546BUR-1

MECHANICAL and PACKAGING

• CASE: Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF style package.

• TERMINALS: End caps tin-lead plated or RoHS compliant matte-Tin plating available (on commercial only) solderable per MIL-

STD-750, method 2026.

• POLARITY: Cathode indicated by band where diode is to be operated with the banded end positive with respect to the opposite

end for Zener regulation.

• MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) of this device is approximately +6 PPM/oC. The

COE of the Mounting Surface System should be selected to provide a suitable match with this device.

• MARKING: cathode band only.

• TAPE & REEL option: Standard per EIA-481-1-A with 12 mm tape (add “TR” suffix to part number). Consult factory for quantities.

• WEIGHT: 0.04 grams.

• See Package Dimensions on last page.

PART NOMENCLATURE

JAN 1N5518 B UR -1 (e3)

Reliability Level

JAN = JAN Level

JANTX = JANTX Level

JANTXV = JANTXV Level

Blank = Commercial

JEDEC type number

See Electrical Characteristics

table

Zener Voltage Tolerance

A = 10%

B = 5%

C = 2%

D = 1%

Blank = 20%

RoHS Compliance

e3 = RoHS compliant (available

on commercial grady only)

Blank = non-RoHS compliant

Metallurgical Bond

-1 = Metallurgical bond

Package type

UR = surface mount

SYMBOLS & DEFINITIONS

Symbol

Definition

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

IZ, IZT, IZK

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

IZL

Low Regulator (Zener) Current: The lowest rated dc current for the specified power rating.

IZM

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

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

∆VZ

Voltage Regulation: The change in zener voltage between two specified currents or percentage of IZM.

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.

1N5518BUR-1 thru 1N5546BUR-1

ELECTRICAL CHARACTERISTICS

(TA = 25

C unless otherwise noted. Based on DC measurements at thermal equilibrium; VF = 1.1 Max @ IF = 200 mA for all types.)

JEDEC TYPE

NUMBER

(Note 1)

NOMINAL

ZENER

VOLTAGE

VZ @ IZT

(Note 2)

Volts

TEST

CURRENT

IZT

MAX. ZENER

IMPEDANCE

B-C-D SUFFIX

ZZT @ IZT

(Note 3)

Ohms

MAX. REVERSE CURRENT

(Note 4)

B-C-D

SUFFIX

MAXIMUM

DC ZENER

CURRENT

IZM

(Note 5)

B-C-D SUFFIX

MAX. NOISE

DENSITY

AT IZ = 250 µA

√

REGULATION

FACTOR

∆

(Note 6)

Volts

LOW VZ

CURRENT

IZL

(Note 6)

– VOLTS

NON &

A-

SUFFIX

B-C-D

SUFFIX

1N5518BUR-1

1N5519BUR-1

1N5520BUR-1

1N5521BUR-1

1N5522BUR-1

3.3

3.6

3.9

4.3

4.7

5.0

3.0

1.0

3.0

2.0

0.90

1.0

1.5

1.0

1.5

2.0

115

105

0.5

0.90

0.85

0.75

0.60

2.0

1.0

1N5523BUR-1

1N5524BUR-1

1N5525BUR-1

1N5526BUR-1

1N5527BUR-1

5.1

5.6

6.2

6.8

7.5

5.0

3.0

1.0

2.0

1.0

0.5

2.0

3.0

4.5

5.5

6.0

2.5

3.5

5.0

6.2

6.8

0.5

1.0

2.0

0.65

0.30

0.20

0.10

0.05

0.25

0.01

1N5528BUR-1

1N5529BUR-1

1N5530BUR-1

1N5531BUR-1

1N5532BUR-1

8.2

9.1

10.0

11.0

12.0

1.0

0.5

0.1

0.05

6.5

7.0

8.0

9.0

9.5

7.5

8.2

9.1

9.9

10.8

4.0

5.0

0.05

0.10

0.20

0.01

1N5533BUR-1

1N5534BUR-1

1N5535BUR-1

1N5536BUR-1

1N5537BUR-1

13.0

14.0

15.0

16.0

17.0

1.0

100

0.01

10.5

11.5

12.5

13.0

14.0

11.7

12.6

13.5

14.4

15.3

0.20

0.01

1N5538BUR-1

1N5539BUR-1

1N5540BUR-1

1N5541BUR-1

1N5542BUR-1

18.0

19.0

20.0

22.0

24.0

1.0

100

0.01

15.0

16.0

17.0

18.0

20.0

16.2

17.1

18.0

19.8

21.6

0.20

0.25

0.30

0.01

1N5543BUR-1

1N5544BUR-1

1N5545BUR-1

1N5546BUR-1

25.0

28.0

30.0

33.0

1.0

100

0.01

21.0

23.0

24.0

28.0

22.4

25.2

27.0

29.7

0.35

0.40

0.45

0.50

0.01

NOTES:

1. TOLERANCE AND VOLTAGE DESIGNATION –

The JEDEC type numbers without a letter prior to the UR-1 suffix are +/-20% with guaranteed limits for only VZ, IR, and VF. Units with “A”

prior to the UR-1 suffix are +/-10% with guaranteed limits for VZ, IR, and VF. Units with guaranteed limits for all six parameters are

indicated by a B suffix for +/-5.0% units, C suffix for +/-2.0% and D suffix for +/-1.0% prior to the UR-1 suffix.

2. ZENER VOLTAGE (VZ) MEASUREMENT –

Nominal zener voltage is measured with the device junction in thermal equilibrium with ambient temperature of 25 oC.

3. ZENER IMPEDANCE (ZZ) MEASUREMENT –

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

zener current (IZT) is superimposed on IZT.

4. REVERSE CURRENT (IR) –

Reverse currents are guaranteed and are measured at VR as shown on the table.

5. MAXIMUM REGULATOR CURRENT (IZM ) –

The maximum current shown is as shown in MIL-PRF-19500/437.

6. MAXIMUM REGULATION FACTOR (∆VZ) –

∆VZ is the maximum difference between VZ at IZT and VZ at IZL measured with the device junction in thermal equilibrium.

smnDED rzsr (mm new NOKSE souxca AEAMPUFIER mm 2 m: m 3 KHz mu: Vnmxa ms 4 von MEYER mm mm sun CIDEI mm mu 7:: 5n an EU 1:: ed 600 500 400 \ \ \ \ 200 \ 100 25 50 75 100 Forward Characteristic 125 150 175 200 > 'F (M) Vz Reversevmmge szae (Volts) |m\ IZL VF (Volts) hT _. Iz th) i 'ZM Reverse Charact Iic (See Iable fur specific values)

1N5518BUR-1 thru 1N5546BUR-1

GRAPHS

TEC, End Cap Temperature (oC)

FIGURE 1 – Noise Density Measurement Circuit

FIGURE 2 – Power Derating Curve

Zener Voltage VZ

FIGURE 4

FIGURE 3 – Capacitance vs. Zener Voltage (Typical) Zener Diode Characteristics and Symbol Identification

Noise density, (N

) is specified in microvolt-rms per

squa

re-root-

hertz. Actual measurement is performed

using a 1 kHz to 3 kHz frequency bandpass filter at a

constant Zener test current (I

ZT) at 25 oC ambient

temperature.

Typical Capacitance in Picofarads (pf)

At zero volts

At –2 volts (VR)

, Rated Maximum dc Operation (mW)

1000 100 500 400 300 200 100 70 40 30 20 1 Nut-(nu .1 .2 .5 1 2 5 1 0 20 50 1 00

1N5518BUR-1 thru 1N5546BUR-1

GRAPHS (continued)

OPERATING CURRENT IZT (mA)

FIGURE 5

ZENER IMPEDANCE vs. OPERATION CURRENT (typical)

ZENER IMPEDANCE Z

(Ohms)

6.8 Volt

11 Volt

28 Volt

ECT BL ECT

1N5518BUR-1 thru 1N5546BUR-1

PACKAGE DIMENSIONS

Ltr

Dimensions

Inch

Millimeter

Min

Max

Min

Max

.063

.067

1.60

1.70

.130

.146

3.30

3.71

ECT

.016

.022

0.41

0.56

.001 min

0.03 min

NOTES:

1. Dimensions are in inch.

2. Millimeters are given for general information only.

3. In accordance with ASME Y14.5M, diameters are equivalent to Φx symbology.

PAD LAYOUT

INCHES

.200

5.08

.055

1.40

.080

2.03

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