P6KE68ARL资料

P6KE6.8A Series

600 Watt Peak Power

Surmetict-40 Zener TransientVoltage Suppressors

Unidirectional*

The P6KE6.8A series is designed to protect voltage sensitivecomponents from high voltage, high energy transients. They haveexcellent clamping capability, high surge capability, low zenerimpedance and fast response time. These devices areON Semiconductor’s exclusive, cost-effective, highly reliableSurmetict axial leaded package and is ideally-suited for use incommunication systems, numerical controls, process controls,medical equipment, business machines, power supplies and manyother industrial/consumer applications.

Specification Features:

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CathodeAnode••••••••

Working Peak Reverse Voltage Range – 5.8 to 171 VPeak Power – 600 Watts @ 1 ms

ESD Rating of Class 3 (>16 KV) per Human Body ModelMaximum Clamp Voltage @ Peak Pulse CurrentLow Leakage < 5 µA above 10 V

Maximum Temperature Coefficient SpecifiedUL 497B for Isolated Loop Circuit ProtectionResponse Time is typically < 1 ns

AXIAL LEADCASE 17STYLE 1

Mechanical Characteristics:

CASE: Void-free, Transfer-molded, Thermosetting plastic

FINISH: All external surfaces are corrosion resistant and leads are

LP6KExxxAYYWWL = Assembly Location

P6KExxxA = ON Device CodeYY = Year

WW = Work Week

readily solderable

MAXIMUM LEAD TEMPERATURE FOR SOLDERING:

230_C, 1/16″ from the case for 10 seconds

POLARITY: Cathode indicated by polarity bandMOUNTING POSITION: Any

MAXIMUM RATINGS

RatingPeak Power Dissipation (Note 1.)@ TL ≤ 25°CSteady State Power Dissipation@ TL ≤ 75°C, Lead Length = 3/8″Derated above TL = 75°CThermal Resistance, Junction–to–LeadForward Surge Current (Note 2.)@ TA = 25°COperating and StorageTemperature RangeSymbolPPKPDValue6005.050RqJLIFSMTJ, Tstg20100–55 to+175UnitWattsWattsmW/°C°C/WAmps°CORDERING INFORMATION

DeviceP6KExxxAP6KExxxARL

PackageAxial LeadAxial Lead

Shipping1000 Units/Box4000/Tape & Reel

1.Nonrepetitive current pulse per Figure 4 and derated above TA = 25°C perFigure 2.

2.1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulsesper minute maximum.*Please see P6KE6.8CA – P6KE200CA for Bidirectional devices.

© Semiconductor Components Industries, LLC, 2002

1

April, 2002 – Rev. 5

Publication Order Number:

P6KE6.8A/D

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P6KE6.8A Series

ELECTRICAL CHARACTERISTICS (TA = 25°C unless

otherwise noted, VF = 3.5 V Max. @ IF (Note 6.) = 50 A)SymbolIPPVCVRWMIRVBRITQVBRIFVFParameterMaximum Reverse Peak Pulse CurrentClamping Voltage @ IPPWorking Peak Reverse VoltageMaximum Reverse Leakage Current @ VRWMBreakdown Voltage @ ITTest CurrentMaximum Temperature Coefficient of VBRForward CurrentForward Voltage @ IFIPPVCVBRVRWMIRVFITVIFIUni–Directional TVShttp://onsemi.com

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P6KE6.8A Series

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 6.) = 50 A)

VRWM(Note 3.)Volts5.86.47.027.788.559.410.211.112.813.615.317.118.820.523.125.628.230.833.336.840.243.7.85358.1.170.177.885.594102111Breakdown VoltageIR @ VRWMµA10005002005010555555555555555555555555555VBR(Note 4.) (Volts)Min6.457.137.798.659.510.511.412.414.315.217.11920.922.825.728.531.434.237.140.944.748.553.258.9.671.377.986.595105114124Nom6.807.518.29.11011.051213.0515.05161820222427.053033.053639.03.07.0551.0556626875.058291100110.5120130.5Max7.147.888.619.5510.511.612.613.715.816.818.92123.125.228.431.534.737.84145.249.453.658.865.171.478.886.195.5105116126137@ ITmA10101011111111111111111111111111111VC @ IPP (Note 5.)VCVolts10.511.312.113.414.515.616.718.221.222.525.227.730.633.237.1.445.749.953.959.3.870.1778592103113125137152165179IPPA575350413836332827242220181614.413.21211.210.19.38.67.87.16.55.85.34.84.443.63.3QVBR%/°C0.0570.0610.0650.0680.0730.0750.0780.0810.0840.0860.0880.090.0920.0940.0960.0970.0980.0990.10.1010.1010.1020.1030.1040.1040.1050.1050.1060.1060.1070.1070.107DeviceP6KE6.8AP6KE7.5AP6KE8.2AP6KE9.1AP6KE10AP6KE11AP6KE12AP6KE13AP6KE15AP6KE16AP6KE18AP6KE20AP6KE22AP6KE24AP6KE27AP6KE30AP6KE33AP6KE36AP6KE39AP6KE43AP6KE47AP6KE51AP6KE56AP6KE62AP6KE68AP6KE75AP6KE82AP6KE91AP6KE100AP6KE110AP6KE120AP6KE130ADeviceMarkingP6KE6.8AP6KE7.5AP6KE8.2AP6KE9.1AP6KE10AP6KE11AP6KE12AP6KE13AP6KE15AP6KE16AP6KE18AP6KE20AP6KE22AP6KE24AP6KE27AP6KE30AP6KE33AP6KE36AP6KE39AP6KE43AP6KE47AP6KE51AP6KE56AP6KE62AP6KE68AP6KE75AP6KE82AP6KE91AP6KE100AP6KE110AP6KE120AP6KE130AP6KE150AP6KE150A1285143150.515812072.90.108P6KE160AP6KE160A136515216016812192.70.108P6KE170AP6KE170A1455162170.517912342.60.108P6KE180AP6KE180A15171180112462.40.108P6KE200AP6KE200A171519020021012742.20.1083.A transient suppressor is normally selected according to the maximum working peak reverse voltage (VRWM), which should be equal to orgreater than the dc or continuous peak operating voltage level.

4.VBR measured at pulse test current IT at an ambient temperature of 25°C5.Surge current waveform per Figure 4 and derate per Figures 1 and 2.

6.1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.

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P6KE6.8A Series

NONREPETITIVE PULSEWAVEFORM SHOWN INFIGURE 4PEAK PULSE DERATING IN % OFPEAK POWER OR CURRENT @ TA= 25C_

100PPK, PEAK POWER (kW)10100806040200

0

25

50

75

100125150175

200

10.10.1µs1µs10µs100µs1ms10mstP, PULSE WIDTH

TA, AMBIENT TEMPERATURE (_C)

Figure 1. Pulse Rating CurveFigure 2. Pulse Derating Curve

tr ≤ 10µs10,000C, CAPACITANCE (pF)MEASURED @ZERO BIAS100VALUE (%)PEAK VALUE – IPPPULSE WIDTH (tp) ISDEFINED AS THATPOINT WHERE THEPEAK CURRENTDECAYS TO 50% OF IPP.IPP21000

HALF VALUE –50tP0100

MEASURED @VRWM10

0.1110100VBR, BREAKDOWN VOLTAGE (VOLTS)

10000123t, TIME (ms)

4Figure 3. Capacitance versus Breakdown Voltage

PD, STEADY STATE POWER DISSIPATION (WATTS)Figure 4. Pulse Waveform

3/8″32100

25

5075100125150175TL, LEAD TEMPERATURE _C)

2003/8″DERATING FACTOR10.70.50.30.20.10.070.050.030.020.01

0.110 µs0.20.512510D, DUTY CYCLE (%)

2050100100 µsPULSE WIDTH10 ms1 msFigure 5. Steady State Power DeratingFigure 6. Typical Derating Factor for Duty Cycle

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P6KE6.8A Series

APPLICATION NOTES

RESPONSE TIME

In most applications, the transient suppressor device isplaced in parallel with the equipment or component to beprotected. In this situation, there is a time delay associatedwith the capacitance of the device and an overshootcondition associated with the inductance of the device andthe inductance of the connection method. The capacitanceeffect is of minor importance in the parallel protectionscheme because it only produces a time delay in thetransition from the operating voltage to the clamp voltage asshown in Figure 7.

The inductive effects in the device are due to actualturn-on time (time required for the device to go from zerocurrent to full current) and lead inductance. This inductiveeffect produces an overshoot in the voltage across theequipment or component being protected as shown inFigure8. Minimizing this overshoot is very important in theapplication, since the main purpose for adding a transientsuppressor is to clamp voltage spikes. The P6KE6.8A serieshas very good response time, typically < 1 ns and negligibleinductance. However, external inductive effects couldproduce unacceptable overshoot. Proper circuit layout,

minimum lead lengths and placing the suppressor device asclose as possible to the equipment or components to beprotected will minimize this overshoot.

Some input impedance represented by Zin is essential toprevent overstress of the protection device. This impedanceshould be as high as possible, without restricting the circuitoperation.

DUTY CYCLE DERATING

The data of Figure 1 applies for non-repetitive conditionsand at a lead temperature of 25°C. If the duty cycle increases,the peak power must be reduced as indicated by the curvesof Figure 6. Average power must be derated as the lead orambient temperature rises above 25°C. The average powerderating curve normally given on data sheets may benormalized and used for this purpose.

At first glance the derating curves of Figure 6 appear to bein error as the 10 ms pulse has a higher derating factor thanthe 10 µs pulse. However, when the derating factor for agiven pulse of Figure 6 is multiplied by the peak power valueof Figure 1 for the same pulse, the results follow theexpected trend.

TYPICAL PROTECTION CIRCUIT

ZinVinLOADVLV

Vin (TRANSIENT)VLVOVERSHOOT DUE TOINDUCTIVE EFFECTSVin (TRANSIENT)VLVintdtD = TIME DELAY DUE TO CAPACITIVE EFFECTttFigure 7. Figure 8.

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P6KE6.8A Series

UL RECOGNITION*

The entire series including the bidirectional CA suffix hasUnderwriters Laboratory Recognition for the classificationof protectors (QVGV2) under the UL standard for safety497B and File #E 116110. Many competitors only have oneor two devices recognized or have recognition in anon-protective category. Some competitors have norecognition at all. With the UL497B recognition, our partssuccessfully passed several tests including Strike Voltage

Breakdown test, Endurance Conditioning, Temperature test,Dielectric Voltage-Withstand test, Discharge test andseveral more.

Whereas, some competitors have only passed aflammability test for the package material, we have beenrecognized for much more to be included in their protectorcategory.

*Applies to P6KE6.8A, CA – P6KE200A, CA.

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P6KE6.8A Series

OUTLINE DIMENSIONS

Transient Voltage Suppressors – Axial Leaded

600 Watt Peak Power Surmetict–40

SURMETIC 40CASE17–02ISSUE CBDKFDIMABDKFNOTES:1.CONTROLLED DIMENSION: INCH2.LEAD FINISH AND DIAMETER UNCONTROLLED IN DIM F.3.CATHODE BAND INDICATES POLARITYINCHESMINMAX0.3300.3500.1300.1450.0370.043---0.0501.0001.250MILLIMETERSMINMAX8.388.3.303.680.941.09---1.2725.4031.75AFKSTYLE 1:PIN 1.ANODE 2.CATHODEhttp://onsemi.com

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P6KE6.8A Series

SURMETIC is a trademark of Semiconductor Components Industries, LLC.

ON Semiconductor is a trademark and is a registered trademark of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the rightto make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its productsfor any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims anyand all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheetsand/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” mustbe validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applicationsintended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or deathmay occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLCand its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney feesarising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges thatSCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.

PUBLICATION ORDERING INFORMATION

JAPAN: ON Semiconductor, Japan Customer Focus Center

4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031Phone: 81–3–5740–2700Email: r14525@onsemi.com

ON Semiconductor Website: http://onsemi.comFor additional information, please contact your localSales Representative.http://onsemi.com8P6KE6.8A/D