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P6KE91A 데이터시트 PDF




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부품번호 P6KE91A 기능
기능 ZENER OVERVOLTAGE TRANSIENTSUPPRESSORS
제조업체 Motorola Inc
로고 Motorola  Inc 로고


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P6KE91A 데이터시트, 핀배열, 회로
MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
Zener Transient Voltage Suppressors
Undirectional and Bidirectional
The P6KE6.8A series is designed to protect voltage sensitive components from high
voltage, high energy transients. They have excellent clamping capability, high surge
capability, low zener impedance and fast response time. The P6KE6.8A series is supplied
in Motorola’s exclusive, cost-effective, highly reliable Surmetic axial leaded package and
is ideally-suited for use in communication systems, numerical controls, process controls,
medical equipment, business machines, power supplies and many other industrial/
consumer applications.
Specification Features:
Standard Zener Voltage Range — 6.8 to 200 Volts
Peak Power — 600 Watts @ 1 ms
Maximum Clamp Voltage @ Peak Pulse Current
Low Leakage < 5 µA Above 10 Volts
Maximum Temperature Coefficient Specified
UL Recognition
Response Time is Typically < 1 ns
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are readily solderable
POLARITY: Cathode indicated by polarity band. When operated in zener mode, will be
positive with respect to anode
MOUNTING POSITION: Any
WAFER FAB LOCATION: Phoenix, Arizona
ASSEMBLY/TEST LOCATION: Seoul, Korea
P6KE6.8A
through
P6KE200A
ZENER OVERVOLTAGE
TRANSIENT
SUPPRESSORS
6.8–200 VOLT
600 WATT PEAK POWER
5 WATTS STEADY STATE
CASE 17, Style 1
PLASTIC
MAXIMUM RATINGS
Rating
Peak Power Dissipation (1)
@ TL 25°C
Steady State Power Dissipation
@ TL 75°C, Lead Length = 3/8
Derated above TL = 75°C
Forward Surge Current (2)
@ TA = 25°C
Operating and Storage Temperature Range
Lead Temperature not less than 1/16from the case for 10 seconds: 230°C
NOTES: 1. Nonrepetitive current pulse per Figure 4 and derated above TA = 25°C per Figure 2.
NOTES: 2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
Symbol
PPK
PD
IFSM
TJ, Tstg
Value
600
5
50
100
– 65 to +175
Unit
Watts
Watts
mW/°C
Amps
°C
600 Watt Peak Power Data Sheet
4-7
Motorola TVS/Zener Device Data




P6KE91A pdf, 반도체, 판매, 대치품
P6KE6.8A through P6KE200A
APPLICATION NOTES
RESPONSE TIME
In most applications, the transient suppressor device is
placed in parallel with the equipment or component to be
protected. In this situation, there is a time delay associated
with the capacitance of the device and an overshoot condition
associated with the inductance of the device and the
inductance of the connection method. The capacitance effect
is of minor importance in the parallel protection scheme
because it only produces a time delay in the transition from the
operating voltage to the clamp voltage as shown in Figure A.
The inductive effects in the device are due to actual turn-on
time (time required for the device to go from zero current to full
current) and lead inductance. This inductive effect produces
an overshoot in the voltage across the equipment or
component being protected as shown in Figure B. Minimizing
this overshoot is very important in the application, since the
main purpose for adding a transient suppressor is to clamp
voltage spikes. The P6KE6.8A series has very good response
time, typically < 1 ns and negligible inductance. However,
external inductive effects could produce unacceptable over-
shoot. Proper circuit layout, minimum lead lengths and placing
the suppressor device as close as possible to the equipment
or components to be protected will minimize this overshoot.
Some input impedance represented by Zin is essential to
prevent overstress of the protection device. This impedance
should be as high as possible, without restricting the circuit
operation.
DUTY CYCLE DERATING
The data of Figure 1 applies for non-repetitive conditions
and at a lead temperature of 25°C. If the duty cycle increases,
the peak power must be reduced as indicated by the curves of
Figure 6. Average power must be derated as the lead or
ambient temperature rises above 25°C. The average power
derating curve normally given on data sheets may be
normalized and used for this purpose.
At first glance the derating curves of Figure 6 appear to be in
error as the 10 ms pulse has a higher derating factor than the
10 µs pulse. However, when the derating factor for a given
pulse of Figure 6 is multiplied by the peak power value of
Figure 1 for the same pulse, the results follow the expected
trend.
TYPICAL PROTECTION CIRCUIT
Zin
Vin
LOAD
VL
V Vin (TRANSIENT)
VL
Vin
td
tD = TIME DELAY DUE TO CAPACITIVE EFFECT
t
Figure 7.
OVERSHOOT DUE TO
V INDUCTIVE EFFECTS
Vin (TRANSIENT)
VL
Figure 8.
t
600 Watt Peak Power Data Sheet
4-10
Motorola TVS/Zener Device Data

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P6KE91A 전자부품, 판매, 대치품
P6KE6.8A through P6KE200A
Literature Distribution Centers:
USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036.
EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
Devices listed in bold, italic are Motorola preferred devices.
Motorola TVS/Zener Device Data
600 Watt Peak Power Data Sheet
4-13

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