Silicon Avalanche Diodes
400W Surface Mount Transient Voltage Supressors
RoHS SMAJ Series
®
FEATURES
• RoHS compliant
• For surface mounted applications in order to optimize
board space
• Low profile package
• Built-in strain relief
• Glass passivated junction
• Low inductance
• Excellent clamping capability
• Repetition Rate (duty cycle): 0.01%
• Fast response time: typically less than 1.0ps from 0 Volts to
V(BR) for unidirectional types
• Typical IR less than 1A above 10V
• High Temperature soldering: 250˚C/10 seconds at terminals
• Plastic package has Underwriters Laboratory
Flammability 94V-O
Agency Approvals: Recognized under the Components Program
of Underwriters Laboratories.
Agency File Number: E128662
MAXIMUM RATINGS AND CHARACTERISTICS
@25˚C AMBIENT TEMPERATURE (unless otherwise noted)
PARAMETER
SYMBOL VALUE UNIT
Peak pulse power Dissipation on
10/1000µs waveform
(note 1,2, FIG.1)
PPPM
Min
Watts
400
Peak pulse current of on 10\1000µs
waveform (note 1, FIG.3)
IPPM SEE TABLE 1 Amps
Peak forward Surge Current, 8.3ms
Single Half SIne Wave Superimposed
on Rated Load, (JEDEC Method)
(note 2.3)
IFSM
40
Amps
Operating junction and Storage
Temperature Range
Tj, TsTG -55 to +150 °C
ORDERING INFORMATION
SMAJ
CA
Voltage
Bi-Directional
5% Voltage Tolerance
Tape and reeled (5000 pcs)
Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above TA=
25˚C per Fig.2
2. Mounted on 5.0mm2(0.03mm thick) Copper Pads to each
terminal
3. 8.3 ms single half sine-wave, or equivalent square wave, Duty
cycle= 4 pulses per minute maximum.
Mechanical Specifications:
Weight:
0.002ounce, 0.061 gram
Case:
JEDEC DO-214AC Molded Plastic over
glass passivated junction
Mounting Position: Any
Polarity:
Color band denotes cathode except
Bipolar
Terminal:
Solder Plated, solderable per
MIL-STD-750, Method 2026
Standard Packaging: 12mm tape (EIA STD RS-481)
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