MMBZ5258BT-7-F - Diodes, Inc.

MMBZ5221BT - MMBZ5259BT

150mW SURFACE MOUNT ZENER DIODE

Features

• Ultra-Small Surface Mount Package

• Planar Die Construction

• General Purpose

• Ideally Suited for Automated Assembly Processes

• Lead Free/RoHS Compliant (Note 2)

• "Green" Device (Note 3 and 4)

Mechanical Data

• Case: SOT-523

• Case Material: Molded Plastic. UL Flammability Classification

Rating 94V-0

• Moisture Sensitivity: Level 1 per J-STD-020D

• Terminals: Solderable per MIL-STD-202, Method 208

• Lead Free Plating (Matte Tin Finish annealed over Alloy 42

leadframe).

• Polarity: See Diagram

• Marking Information: See Page 4

• Ordering Information: See Page 4

• Weight: 0.002 grams (approximate)

Top View Device Schematic

Maximum Ratings @TA = 25°C unless otherwise specified

Characteristic Symbol Value Unit

Zener Current (See Table on page 2) ⎯ ⎯ ⎯

Forward Voltage @ IF = 10mA VF 0.9 V

Thermal Characteristics

Characteristic Symbol Value Unit

Power Dissipation (Note 1) PD 150 mW

Thermal Resistance, Junction to Ambient (Note 1) RθJA 833 °C/W

Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C

Notes: 1. Device mounted on FR-4 PC board with recommended pad layout at http://www.diodes.com/datasheets/ap02001.pdf.

2. No purposefully added lead.

3. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.

4. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date

Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.

MMBZ5221BT - MMBZ5259BT

Document number: DS30267 Rev. 11 - 2 1 of 4

www.diodes.com June 2008

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MMBZ5221BT - MMBZ5259BT

Document number: DS30267 Rev. 11 - 2 2 of 4

www.diodes.com June 2008

MMBZ5221BT - MMBZ5259BT

Electrical Characteristics @TA = 25°C unless otherwise specified

Zener Voltage Range

(Note 5) Test

Current Maximum Zener Impedance

(Note 6)

Maximum Reverse

Leakage Current

(Note 5)

VZ @ IZT IZT ZZT @ IZT ZZK @ IZK

= 0.25mA IR @ VR

Type

Number Marking

Code

Nom (V) Min (V) Max (V) mA Ω μA V

MMBZ5221BT KC1 2.4 2.28 2.52 20 30 1200 100 1.0

MMBZ5223BT KC3 2.7 2.57 2.84 20 30 1300 75 1.0

MMBZ5225BT KC5 3.0 2.85 3.15 20 30 1600 50 1.0

MMBZ5226BT KG1 3.3 3.14 3.47 20 28 1600 25 1.0

MMBZ5227BT KG2 3.6 3.42 3.78 20 24 1700 15 1.0

MMBZ5228BT KG3 3.9 3.71 4.10 20 23 1900 10 1.0

MMBZ5229BT KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0

MMBZ5230BT KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0

MMBZ5231BT KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0

MMBZ5232BT KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0

MMBZ5234BT KE4 6.2 5.89 6.51 20 7.0 1000 5.0 4.0

MMBZ5235BT KE5 6.8 6.46 7.14 20 5.0 750 3.0 5.0

MMBZ5236BT KF1 7.5 7.13 7.88 20 6.0 500 3.0 6.0

MMBZ5237BT KF2 8.2 7.79 8.61 20 8.0 500 3.0 6.5

MMBZ5239BT KF4 9.1 8.65 9.56 20 10 600 3.0 7.0

MMBZ5240BT KF5 10 9.50 10.50 20 17 600 3.0 8.0

MMBZ5241BT KH1 11 10.45 11.55 20 22 600 2.0 8.4

MMBZ5242BT KH2 12 11.40 12.60 20 30 600 1.0 9.1

MMBZ5243BT KH3 13 12.35 13.65 9.5 13 600 0.5 9.9

MMBZ5245BT KH5 15 14.25 15.75 8.5 16 600 0.1 11

MMBZ5246BT KJ1 16 15.20 16.80 7.8 17 600 0.1 12

MMBZ5248BT KJ3 18 17.10 18.90 7.0 21 600 0.1 14

MMBZ5250BT KJ5 20 19.00 21.00 6.2 25 600 0.1 15

MMBZ5251BT KK1 22 20.90 23.10 5.6 29 600 0.1 17

MMBZ5252BT KK2 24 22.80 25.20 5.2 33 600 0.1 18

MMBZ5254BT KK4 27 25.65 28.35 5.0 41 600 0.1 21

MMBZ5255BT KK5 28 26.60 29.40 4.5 44 600 0.1 21

MMBZ5256BT KM1 30 28.50 31.50 4.2 49 600 0.1 23

MMBZ5257BT KM2 33 31.35 34.65 3.8 58 700 0.1 25

MMBZ5258BT KM3 36 34.20 37.80 3.4 70 700 0.1 27

MMBZ5259BT KM4 39 37.05 40.95 3.2 80 800 0.1 30

Notes: 5. Short duration pulse test used to minimize self-heating effect.

6. f = 1KHz.

MMBZ5221BT - MMBZ5259BT

0

100

200

300

25

050 75 100 125 150

P

,

P

O

WE

R

DISSI

P

A

T

I

O

N (mW)

D

T , AMBIENT TEMPERAT URE ( C)

Fig. 1 Power Derating Curve

A

°

0

10

20

30

40

50

01234567891

I, ZENE

0

R

C

U

R

EN

T

(mA)

Z

V , ZENER VOLTAGE (V)

Fig . 2 Ty pi cal Zener Br eakdown Charact er i stic s

Z

0

10

20

30

0

I, ZENE

R

C

U

R

EN

T

(mA)

Z

V , ZENER VOL TAGE (V)

Fig. 3 Typical Zene r B r eakdow n C harac teristics

Z

10 20 30 40

T = 25°C

j

Test current I

Z

10

12

18

22

27

33 36

15

39

Nominal Zener Voltage

C , TOTAL CAPACITANCE (pF)

T

10

100

1,000

10 100

1V , NOMINAL Z ENER VOLTAGE (V)

Fig . 4 Typical Tota l C apacit ance vs. N om i nal Zener Vo l t age

Z

1

10

100

1,000

110

MMBZ5221BT - MMBZ5259BT

Document number: DS30267 Rev. 11 - 2 3 of 4

www.diodes.com June 2008

10

V , Z ENER VOL TAGE (V)

F ig . 5 Typical Zene r I m pedanc e Charact eristics

Z

0

1

10

100

110 100

P

,

P

EAK S

U

R

G

E

P

O

WE

R

(W)

PK

PULSE WIDTH (ms)

Fig. 6 Maximum Non-repetitive Surge Power

1,000

Z , ZENER IMPEDANCE ( )

Z

Ω

MMBZ5221BT - MMBZ5259BT

Document number: DS30267 Rev. 11 - 2 4 of 4

www.diodes.com June 2008

MMBZ5221BT - MMBZ5259BT

Ordering Information (Note 7)

Device Packaging Shipping

(Type Number)-7-F SOT-523 3000/Tape & Reel

* Add “-7-F” to the appropriate type number in from Electrical Characteristics Table, example: 6.2V Zener = MMBZ5234BTS-7-F.

Notes: 7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.

Marking Information

Kxx YM

Kxx = Product Type Marking Code

(See Electrical Characteristics Table)

YM = Date Code Marking

Y = Year (ex: N = 2002)

M = Month (ex: 9 = September)

Date Code Key

Year 2002 2003 2004 2005 2006 2007 2008 2009 2010 2111 2012 2013 2014 2015

Code N P R S T U V W X Y Z A B C

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Code 1 2 3 4 5 6 7 8 9 O N D

Package Outline Dimensions

Suggested Pad Layout

IMPORTANT NOTICE

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes

without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product

described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall

assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,

harmless against all damages. LIFE SUPPORT

Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written

approval of the President of Diodes Incorporated.

A

M

JL

D

BC

H

K

G

TOP VIEW

N

SOT-523

Dim Min Max Typ

A 0.15 0.30 0.22

B 0.75 0.85 0.80

C 1.45 1.75 1.60

D ⎯ ⎯ 0.50

G 0.90 1.10 1.00

H 1.50 1.70 1.60

J 0.00 0.10 0.05

K 0.60 0.80 0.75

L 0.10 0.30 0.22

M 0.10 0.20 0.12

N 0.45 0.65 0.50

α 0° 8° ⎯

All Dimensions in mm

X E

Y

C

Z

Dimensions Value (in mm)

Z 1.8

X 0.4

Y 0.51

C 1.3

E 0.7