SMAJ250A Rectifier Diode 1N5821 diode Silicon Avalanche Diodes

SMAJ5.0 thru 440CA

Surface Mount Transient Voltage Suppressors

Peak Pulse Power 400W Stand Off Voltage 5.0 to 440V

Features

• ‹Plastic package has Underwriters Laboratory Flammability Classification 94V-0 ‹
• Optimized for LAN protection applications ‹
• Ideal for ESD protection of data lines in accordance with IEC 1000-4-2 (IEC801-2) ‹
• Ideal for EFT protection of data lines in accordance with IEC 1000-4-4 (IEC801-4) ‹
• Low profile package with built-in strain relief for surface mounted applications ‹
• Glass passivated junction ‹
• Low incremental surge resistance, excellent clamping capability ‹
• 400W peak pulse power capability with a 10/1000us wave- form, repetition rate (duty cycle): 0.01% (300W above 78V) ‹
• Very fast response time ‹
• High temperature soldering guaranteed: 250oC/10 seconds at terminals

Mechanical Data

• ‹Case: JEDEC DO-214AC(SMA) molded plastic over passivated chip ‹
• Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 ‹
• Polarity: For uni-directional types the band denotes the cathode, which is positive with respect to the anode under normal TVS operation ‹
• Mounting Position: Any ‹
• Weight: 0.002oz., 0.064g

Devices for Bidirectional Applications

For bi-directional devices, use suffix CA (e.g. SMAJ10CA). Electrical characteristics apply in both directions.

Maximum Ratings and Thermal Characteristics

(Ratings at 25℃ ambient temperature unless otherwise specified.)

Notes:

1. Non-repetitive current pulse, per Fig. 3 and derated above TA=25℃ per Fig.

2. Rating is 300W above 78V 2. Mounted on 0.2 x 0.2" (5.0 x 5.0 mm) copper pads to each terminal

3. Mounted on minimum recommended pad layout

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