SMAJ250A Rectifier Diode 1N5821 diode Silicon Avalanche Diodes
diode rectifier circuit
,signal schottky diode
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.)
Parameter | Symbol | Value | Unit |
Peak pulse power dissipation with a 10/1000us waveform (1,2) (see Fig. 1) | PPPM | 400 | W |
Peak pulse current with a 10/1000us waveform (1) | IPPM | See Next Table | A |
Peak forward surge current, 8.3ms single half sine-wave uni-directional only (2) | IFSM | 40 | A |
Typical thermal resistance, junction to ambient (3) | RθJA | 120 | ℃/W |
Typical thermal resistance, junction to lead | RθJL | 30 | ℃/W |
Operating junction and storage temperature range | TJ, TSTG | -55 to +150 | ℃ |
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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