●

Ptot 500mW

●

Vz 2.4V-75V

Item

Symbol

Unit

Conditions

Max

Power dissipation

Ptot

mW

RthJA<300°C/W

500

Zener current

IZ

mA

Ptot /VZ

Tj

°C

175

Tstg

°C

-65 to

+175

(Ta=25 Unless otherwise specified ）

Item

Symbol

Unit

Conditions

Max

Thermal resistance

RθJA

°C/W

junction to ambient air, on PC board

50mm×50mm×1.6mm

500

Forward voltage

VF

V

IF=200mA

1.1

Zener Diodes

ZMM52 Series

S-S333

07-30-2020

RFE International • Tel (949) 833-1988 • Fax (949) 833-1788 • E-mail sales@rfeinc.com

Page 1 of 4

FEATURES

LIMITING VALUES (Absolute Maximum Rating)

Maximum Junction Temperature

Storage Temperature Range

°C

ELECTRICAL CHARACTERISTICS

Part

Number

Zener voltage range1)

Dynamic resistance

Test current

Reverse

leakage current

Temperature

Coefficient

VZ

rZjT at IZT

rZjK at IZK

IZT

IZK

IR at VR

TKVZ

V

Ω

Ω

mA

mA

μA

V

%K

Typ.

Min

Max

Typ.

Typ.

ZMM5221B

2.4

2.28

2.52

< 30

< 1200

20

0.25

< 100

1

< - 0.085

ZMM5222B

2.5

2.37

2.63

< 30

< 1250

20

0.25

< 100

1

< - 0.085

ZMM5223B

2.7

2.56

2.84

< 30

< 1300

20

0.25

< 75

1

< - 0.080

ZMM5224B

2.8

2.66

2.94

< 30

< 1400

20

0.25

< 75

1

< - 0.080