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PSMAJ440A

Document number: DS36176 Rev. 2 - 2

1 of 4

www.diodes.com

February 2014

PSMAJ440

NEW PRODUCT

400W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Features

• 400W Peak Pulse Power Dissipation

• Excellent Clamping Capability

• Fast Response Time

• Lead-Free Finish; RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

Mechanical Data

• Case: SMA

• Case Material: Molded Plastic. UL Flammability Classification

Rating 94V-0

• Moisture Sensitivity: Level 1 per J-STD-020

• Terminals: Lead Free Plating (Matte Tin Finish)

Solderable per MIL-STD-202, Method 208

• Polarity Indicator: Cathode Band

• Weight: 0.064 grams (approximate)

Ordering Information (Note 4)

Part Number Case Packaging

PSMAJ440A-13 SMA 5000/Tape & Reel

Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.

2. See http://www.diodes.com/quality/lead_free.html 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. For packaging details, go to our website at http://www.diodes.com/products/packages.html.

Marking Information

Maximum Ratings (@T

= +25°C, unless otherwise specified.)

Characteristic Symbol Value Unit

Peak Pulse Power Dissipation

(Non repetitive current pulse derated above T

= +25°C, T

P =

1ms)

(Note 5)

400 W

Peak Forward Surge Current, 8.3ms Single Half Sine Wave

Superimposed on Rated Load (Note 6)

FSM

40 A

Steady State Power Dissipation @ T

= +120°C PM

(AV)

1.0 W

Instantaneous Forward Voltage @ I

= 25A (Note 6) V

6.5 V

Notes: 5. Non-repetitive current pulse, per Fig. 4 and derated above T

= +25°C, per Fig.1.

6. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.

Top View Bottom View

440A = Product type marking code

= Manufacturers’ code marking

YWW = Date code marking

Y = Last digit of year (ex: 2 for 2012)

WW = Week code (01 to 53)



Green

YWW

440A

Summary of content (4 pages)

PAGE 1
PSMAJ440A Green 400W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR Features Mechanical Data • 400W Peak Pulse Power Dissipation • • Excellent Clamping Capability • • Fast Response Time • Lead-Free Finish; RoHS Compliant (Notes 1 & 2) • Moisture Sensitivity: Level 1 per J-STD-020 • Halogen and Antimony Free. “Green” Device (Note 3) • Terminals: Lead Free Plating (Matte Tin Finish) Solderable per MIL-STD-202, Method 208 e3 • Polarity Indicator: Cathode Band • Weight: 0.
PAGE 2
PSMAJ440A Thermal Characteristics Characteristic Symbol Value Unit TJ -55 to +150 °C TSTG -55 to +175 °C Operating Temperature Range Storage Temperature Range Part Number Reverse Standoff Voltage Notes: Breakdown Voltage VBR @ IT (Note 7) Test Current Max. Reverse Leakage @ VRWM Max. Clamping Voltage @ Ipp (tp = 10x1000µs) (see fig 4) Max. Peak Pulse Current Ipp VRWM (V) Min (V) Max (V) IT (mA) IR (μA) VC (V) (A) 376 418 462 1.0 5.0 602.0 0.
PAGE 3
60 50 40 30 20 10 0 1 2 20 5 10 50 100 NUMBER OF CYCLES AT 60Hz Figure 5 Maximum Non-Repetitive Surge Current PM(AV), STEADY STATE POWER DISSIPATION (W) IFSM, PEAK FORWARD SURGE CURRENT (A) NEW PRODUCT PSMAJ440A 1.0 0.8 0.6 0.4 0.2 0 0 50 75 100 125 150 175 200 TL, LEAD TEMPERATURE (° C) Figure 6 Steady State Power Derating Curve 25 Package Outline Dimensions Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. B A C D J H G E SMA Dim Min Max A 2.
PAGE 4
PSMAJ440A IMPORTANT NOTICE NEW PRODUCT DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).