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MMBZ5221B – MMBZ5259B

Surface Mount Zener Diode

Voltage Range

2.4 to 39 Volts

350m Watts Power Dissipation

Features

a

Planar die construction

a

350mW power dissipation on FR-4 PCB

a

general purpose, medium current

a

Ideally suited for automated assembly

processes

a

Standard zener voltage tolerance is ±5%

tolerance with a :B: suffix

Mechanical Data

a

Case: SOT-23, Molded plastic

a

Terminals: Solderable per MIIL-STD-202,

Method 208

a

Polarity: See diagram

a

Marking: Marking Code (see table on Page 2)

SOT-23

Dimensions in inches and (millimeters)

Maximum Ratings and Electrical Characteristics

Rating at 25

+ambient temperature unless otherwise specified.

Maximum Ratings

Type Number

Symbol

Value

Units

Forward Voltage

@ IF = 10mA

0.9

V

Power Dissipation (Note 1)

Pd

350

mW

Thermal Resistance Junction to Ambient Air

(Note 1)

357

K/W

Operating and Storage Temperature Range

-65 to + 150

Notes: 1. Valid Provided that Terminals are Kept at Ambient Temperature.

2. Tested with Pulses, Tp

1.0ms

0.020(0.51)

0.015(0.37)

0.055(1.40)

0.047(1.19)

0.098(2.50)

0.083(2.10)

0.024(0.61)

0.018(0.45)

0.007(0.178)

0.003(0.076)

0.024(0.61)

0.018(0.45)

0.080(2.05)

0.070(1.78)

0.041(1.05)

0.047(0.89)

0.120(3.05)

0.104(2.65)

0.006(0.15)

0.001(0.013)

0.043(1.10)

0.035(0.89)