MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA. U.S.A. 92253 Tel: 760-564-8656 • Fax: 760-564-2414
SMAJ SERIES
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE-5.0 TO 170 Volts
400 Watt Peak Pulse Power
FEATURES
• 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
1.0 ps from 0 volts to BV for unidirectional types
• Typical IR less than 1µA above 10V
• High temperature soldering:
250°C/10 seconds at terminals
• Plastic package has Underwriters Laboratory
Flammability Classification 94 V-O
MECHANICAL DATA
Case: JEDEC DO214AC. Molded plastic over glass
passivated junction
Terminals: Solder plated, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denoted positive end (cathode)
except Bidirectional
Standard Packaging: 12mm tape (EIA STD RS-481)
Weight: 0.002 ounces, 0.064 grams)
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types SMAJ5.0 thru types SMAJ170 (e.g. SMAJ5.0C, SMAJ170CA)
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
RATING
SYMBOL
VALUE
UNITS
Peak Pulse Power Dissipation on 10/1000 µs
waveform
(NOTE 1, 2, Fig.1)
Ippm
SEE TABLE 1
Amps
Superimposed on Rated Load,
(JEDEC Method)(Note2, 3)
Operatings and Storage Temperature Range
Tj, Tstg
-55 +150
°C
NOTES:
1. Non-repetitive current pulse, per Fig.3 and derated above Ta=25 °C per Fig.2.
2. Mounted on Copper Pad area of 0.8x0.8" (20x20mm) per Fig.5.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle=4 pulses per minutes maximum.
P
ppm
Minimum 400
Watts
Peak Pulse Current of on 10/1000 µs waveform
(Note 1,Fig 3)
I
FSM
40
Amps
Peak Forward Surge Current, 8.3ms Single Half Sine-wave
8/6/2002
