Transient Voltage Suppressors
SMAJ Series
MERITEK
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%.
SMA/DO-214AC
Fast response time: typically less than 1.0ps from 0 volt to VBR for Unidirectional types.
Typical IR less than 1μA above 10V.
High Temperature soldering: 260°C/10 seconds at terminals.
Plastic package has Underwriters Laboratory Flammability 94V-O.
MECHANICAL DATA
Case: JEDEC DO-214AC. Molded plastic over glass passivated junction.
Terminal: Solder plated, solderable per MIL-STD-750, Method 2026.
Polarity: Color band denotes cathode except Bidirectional.
Standard Packaging: 12mm tape (EIA STD RS- 481).
Weight: 0.002 ounce, 0.061 grams.
DEVICES FOR BIPOLAR APPLICATION
For Bidirectional use C or CA suffix for type SMAJ5.0 through type SMAJ440 (e.g. SMAJ5.0CA, SMAJ440CA);
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25ć ambient temperature unless otherwise specified.
RATING
SYMBOL
PPPM
VALUE
Minimum 400
See Table
UNIT
Watts
Amps
Peak Pulse Power Dissipation on 10/1000ȝs waveform. (Note 1, Note 2, Fig. 1)
Peak Pulse Current on 10/1000ȝs waveform. (Note 1,Fig. 3)
Steady State Power Dissipation at TL =75ćˈLead length .375” (9.5mm).
(Note 2, Fig. 5)
IPPM
PM(AV)
3.3
Watts
Peak Forward Surge Currentˈ8.3ms Single Half Sine-Wave Superimposed
on Rated Load. (JEDEC Method) (Note 3, Fig. 6)
IFSM
40
Amps
Operating junction and Storage Temperature Range.
TJ , TSTG
-65 to +150
ć
Notes: ꢀꢀ1. Non-repetitive current pulse, per Fig. 3 and derated above TA = 25ć per Fig. 2.
2. Mounted on 5.0mm x 5.0mm (0.03mm thick) Copper Pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minute maximum.
All specifications are subject to change without notice.
1
Rev 7