MMBZ5221B - MMBZ5259B

Document number: DS18011 Rev. 24 - 2

1 of 5

www.diodes.com

February 2018

© Diodes Incorporated

MMBZ5221B - MMBZ5259B

350mW SURFACE MOUNT ZENER DIODE

Features



Planar Die Construction



350mW Power Dissipation on FR-4 PCB



General Purpose, Medium Current



Ideally Suited for Automated Assembly Processes



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Notes 3 & 4)



Qualified to AEC-Q101 Standards for High Reliability

Mechanical Data



Case: SOT23



Case Material: Molded Plastic, “Green” Molding Compound.

UL Flammability Classification Rating 94V-0



Moisture Sensitivity: Level 1 per J-STD-020



Terminal Connections: See Diagram



Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe

(Lead Free Plating). Solderable per MIL-STD-202, Method 208



Weight: 0.008 grams (Approximate)

Device

Qualification

Packaging

Shipping

(Type Number)-7-F*

Commercial

SOT23

3,000/Tape & Reel

(Type Number)Q-7-F* (Note 7)

Automotive

SOT23

3,000/Tape & Reel

(Type Number)-13-F*

Commercial

SOT23

10,000/Tape & Reel

(Type Number)Q-13-F* (Note 7)

Automotive

SOT23

10,000/Tape & Reel

* Add “-7-F” to the appropriate type number in Electrical Characteristics Table from Page 2. Example: 6.2V Zener = MMBZ5234B-7-F.

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

4. Product manufactured with Date Code OW (week 42, 2009) and newer are built with Green Molding Compound. Product manufactured prior to Date

5. For Packaging Details, go to our website at http://www.diodes.com.

6. Selected voltages are available on 13" reels (10,000 devices per reel).

Add “-13-F” to the appropriate type number in Electrical Characteristics Table from

Page 2. Example: 6.2V Zener = MMBZ5234B-13-F. Please contact your Diodes Inc. sales representative for availability.

7. Automotive products are AEC-Q10x qualified and are PPAP capable. Automotive, AEC-Q10x and standard products are and thermally the same, except

where specified. For more information, please refer to https://www.diodes.com/quality/product-compliance-definitions/.

Marking Information

Date Code Key

Year

2012

2013

2014

2015

2016

2017

2018

…

2021

2022

2023

Code

Z

A

B

C

D

E

F

…

I

J

K

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

Top View

Device Schematic

SOT23

K = SAT (Shanghai Assembly / Test site)

xx = Product Type Marking Code

See Electrical Characteristics Table

YM = Date Code Marking

Y = Year (ex: F = 2018)

M = Month (ex: 9 = September)

C = CAT (Chengdu Assembly / Test site)

xx = Product Type Marking Code

See Electrical Characteristics Table

YM = Date Code Marking

Y = Year (ex: F = 2018)

M = Month (ex: 9 = September)

Cxx

Kxx

e3