ZMM5255B datasheet, PDF - EEWORLD Datasheet

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ZMM5255B: Description28 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE; CategoryDiscrete semiconductor diode; File Size93KB，4 Pages; ManufacturerPANJIT; Websitehttp://www.panjit.com.tw/; Environmental Compliance; PANJIT is a global IDM that offers a broad product portfolio including MOSFETs, Schottky diodes, SiC devices, bipolar junction transistors and bridges. The company aims to meet the needs of customers in various applications such as automotive, power, industrial, computing, consumer and communications. Their vision is to power the world with reliable quality, energy-efficient and efficient products, bringing a greener and smarter future to people. The company's core values include innovation, responsibility, customer-centricity, learning and growth, mutual trust and collaboration.

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ZMM5255B Overview

28 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE

ZMM5255B Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	PANJIT
Parts packaging code	MELF
package instruction	O-LELF-R2
Contacts	2
Reach Compliance Code	compli
ECCN code	EAR99
Shell connection	ISOLATED
Configuration	SINGLE
Diode component materials	SILICON
Diode type	ZENER DIODE
Maximum dynamic impedance	44 Ω
JESD-30 code	O-LELF-R2
Number of components	1
Number of terminals	2
Maximum operating temperature	175 °C
Package body material	GLASS
Package shape	ROUND
Package form	LONG FORM
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
polarity	UNIDIRECTIONAL
Maximum power dissipation	0.5 W
Certification status	Not Qualified
Nominal reference voltage	28 V
surface mount	YES
technology	ZENER
Terminal form	WRAP AROUND
Terminal location	END
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum voltage tolerance	5%
Working test current	4.5 mA

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ZMM5221B~ZMM5267B

SURFACE MOUNT ZENER DIODES

VOLTAGE

2.4 to 75 Volts

POWER

500 mWatts

MINI-MELF/LL-34

Unit : inch (mm)

FEATURES

• Planar Die construction

• 500mW Power Dissipation

• Ideally Suited for Automated Assembly Processes

.055(1.4)DIA.

• In compliance with EU RoHS 2002/95/EC directives

.063(1.6)

MECHANICAL DATA

• Case: Molded Glass MINI-MELF

• Terminals: Solderable per MIL-STD-750, Method 2026

• Polarity: See Diagram Below

• Approx. Weight: 0.03 grams

• Mounting Position: Any

• Packing information

T/R - 2.5K per 7" plastic Reel

.020(0.5)

.012(0.3)

.146(3.7)

.130(3.3)

.020(0.5)

.012(0.3)

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Parameter

Power Dissipation at Tamb = 25

Junction Temperature

Storage Temperature Range

Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.

Symbol

TOT

Value

500

175

-65 to +175

Units

Parameter

Thermal Resistance Junction to Ambient Air

Forward Voltage at I

= 200mA

Symbol

Min.

Typ.

Max.

0.3

1.1

Units

K/mW

Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.

STAD-FEB.10.2009

PAGE . 1

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