© Won-Top Electronics Co., Ltd.

www.wontop.com

Revision: October, 2018

1

Pb

Features



Planar Die Construction

L



350mW Power Dissipation

A



2.4V – 51V Nominal Zener Voltage



5% Standard Vz Tolerance



Designed for Surface Mount Application

B

C



Plastic Material – UL Recognition Flammability

Classification 94V-0

M

E

D

H

Mechanical Data



Case: SOT-23, Molded Plastic

K



Terminals: Plated Leads Solderable per

J

MIL-STD-202, Method 208

G



Polarity: See Diagram



Weight: 0.008 grams (approx.)



Mounting Position: Any



Marking: Device Code



Lead Free: For RoHS / Lead Free Version,

Add “-LF” Suffix to Part Number, See Page 5

TOP VIEW

Maximum Ratings @T

A=25°C unless otherwise specified

Characteristic

Symbol

Value

Unit

Peak Pulse Power Dissipation at TA = 25°C (Note 1)

PD

350

mW

Forward Voltage @ IF = 10mA

VF

0.9

V

Thermal Resistance Junction to Ambient (Note 1, 2)

RθJA

357

°C/W

Operating and Storage Temperature Range

Tj, TSTG

-65 to +150

°C

Note: 1. Mounted on FR-4 PCB with minimum recommended pad layout.

2. Thermal resistance measurement obtained via infrared scan method.

MMBZ5221B – MMBZ5262B

350mW SURFACE MOUNT ZENER DIODE

WON-TOP ELECTRONICS

®

SOT-23

Dim

Min

Max

A

0.30

0.50

B

1.19

1.40

C

2.10

2.50

D

0.89

1.05

E

0.45

0.61

G

1.78

2.05

H

2.65

3.05

J

0.013

0.15

K

0.89

1.10

L

0.45

0.61

M

0.076

0.178

All Dimensions in mm