1SMA50AT3 Datasheet, PDF (1/4 Pages) Motorola, Inc – Zener Transient Voltage Suppressors

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by 1SMA5.0AT3/D
Zener Transient Voltage
Suppressors
Specification Features:
• Reverse Stand–Off Voltage Range: 5.0 – 78 V
• Peak Power — 400 Watts @ 1.0 ms
• ESD Rating of Class 3 (>16 kV) per Human Body Model
• Pico Seconds Response Time (0 V to BV)
• Flat Handling Surface for Accurate Placement
• Package Design for Top Side or Bottom Circuit Board Mounting
• Available in Tape and Reel
• Low Profile Package
1SMA5.0AT3
through
1SMA78AT3
PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
5.0 – 78 VOLTS VR
400 WATTS PEAK POWER
Mechanical Characteristics:
• Case: Void–free, transfer-molded plastic
• Maximum Case Temperature for Soldering Purposes: 260°C for
10 seconds
• Finish: All external surfaces are corrosion resistant with readily solderable
leads
• Polarity: Cathode indicated by molded polarity notch
• Mounted Position: Any
SMA
CASE 403B–01
PLASTIC
MAXIMUM RATINGS AND CHARACTERISTICS
Rating
Symbol
Value
Peak Power Dissipation @ TL = 25°C, PW = 10/1000 µs (Note 1)
Ppk
400
Peak Forward Surge @ TA = 25°C (JEDEC Method, Note 2)
IFSM
40
Thermal Resistance from Junction to Lead
R_θJL
29
Thermal Resistance from Junction to Ambient
R_θJA
150
Instantaneous Forward Voltage @ 40 A
VF
3.5
Operating and Storage Junction Temperature Range
TJ, Tstg
150
* FR4 Board, using Motorola minimum recommended footprint, as shown in case 403B outline dimensions spec.
1. Non–repetitive current pulse.
2. Measured on 0.3 ms single half sine–wave or equivalent square wave, duty cycle = 4 pulse per minute maximum.
Unit
Watts
Amps
°C/W
°C/W
Volts
°C
ELECTRICAL CHARACTERISTICS (VF = 3.5 Volts @ IF = 40 A for all types)
Device
1SMA5.0AT3
1SMA6.0AT3
1SMA6.5AT3
1SMA7.0AT3
Reverse
Stand–off
Voltage VRWM
(Volts)
5.0
6.0
6.5
7.0
Breakdown Voltage
VBR
Volts
(Min)
IT
mA
6.4
10
6.67
10
7.22
10
7.78
10
Maximum
Reverse Voltage
@ IRSM
(Clamping Voltage)
VRSM (Volts)
9.2
10.3
11.2
12.0
Maximum
Reverse
Surge Current
IRSM
(Amps)
43.5
38.8
35.7
33.3
Maximum
Reverse Leakage
@ VRWM
IR (µA)
400
400
250
250
Devce
Marking
QE
QG
QK
QM
1SMA7.5AT3
7.5
8.33
1
12.9
31.0
50
QP
1SMA8.0AT3
8.0
8.89
1
13.6
29.4
25
QR
1SMA8.5AT3
8.5
9.44
1
14.4
27.8
5.0
QT
1SMA9.0AT3
9.0
10
1
15.4
26.0
2.5
QV
* TOLERANCE AND VOLTAGE DESIGNATION Tolerance designation – The type number listed indicates a tolerance of ±5%. (continued)
REV 1
© M₁o_Sto_Mro_Ala₅, I_.n₀c_A. 1_T9₃96_{through 1SMA78AT3}
MOTOROLA
1