SAC SERIES Low Capacitance Transient Voltage Suppressor Diodes Voltage Range 5.0 to 50 Volts 500 Watts Peak Power 1.0 Watt Steady State DO-15 Features a a a a a a a a Plastic package has Underwriters Laboratory Flammability Classification 94V-0 500W surge capability at 10 X 10us waveform, duty cycle: 0.01% Excellent clamping capability Low incremental surge resistance Fast response time: Typically less than 1.0ps from 0 volts to VBR for unidirectional and 5.0 nS for bidirectional High temperature soldering guaranteed: 250OC / 10 seconds / .375",(9.5mm) lead length / 5lbs.,(2.3kg) tension Idel for data line applications Maximum junction capacitance at o volts is 50 pF Mechanical Data a a a a Case: JEDEC DO-15 molded plastic over a passicated junction Lead: Axial leads, solderable per MIL-STD750, Method 2026 Polarity: Color band denotes cathode except bipolar Weight: 0. 4 gram, 0.015 ounce Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Type Number Peak Power Dissipation at TA=25OC, Tp=1ms (Note 1) Steady State Power Dissipation at TL=75 OC Lead Lengths .375", 9.5mm Operating and Storage Temperature Range Symbol PPK Value Minimum 500 Units Watts PD TJ, TSTG 3.0 -55 to + 175 Watts O C Note: Non-repetitive Current Pulse Per Fig. 3 and Derated above TA=25OC Per Fig. 2. - 102 - O ELECTRICAL CHARACTERISTICS (TA=25 C unless otherwise noted) Device Breakdown Voltage Test Stand-Off Maximum VBR Current Voltage Reverse Leakage (Volts) (Note 1) @IT VWM at VWM Maximum Peak Pulse Current IPPM Maximum Clamping Voltage at IPPM Maximum Temperature Coefficient O Min Max (mA) (Volts) ID (uA) (Note 2)(Amps) VC(Volts) of VBR mV / C) SAC5.0 7.60 9.21 1.0 5.0 300 44 10.00 50 SAC6.0 7.90 9.51 1.0 6.0 300 41 11.2 50 SAC7.0 8.33 10.2 1.0 7.0 300 38 12.6 50 SAC8.0 8.89 10.9 1.0 8.0 100 36 13.4 50 SAC8.5 9.44 11.5 1.0 8.5 50 34 14.0 50 SAC10 11.10 13.6 1.0 10 5.0 29 16.3 50 SAC12 13.30 16.3 1.0 12 5.0 25 19.0 50 SAC15 16.70 20.4 1.0 15 5.0 20 23.6 50 SAC18 20.00 24.4 1.0 18 5.0 15 28.8 50 SAC22 24.40 29.8 1.0 22 5.0 14 35.4 50 SAC26 28.90 35.3 1.0 26 5.0 11.1 42.3 50 SAC30 33.30 40.7 1.0 30 5.0 10.0 48.6 50 SAC36 40.00 48.9 1.0 36 5.0 8.6 60.0 50 SAC45 50.00 61.1 1.0 45 5.0 6.8 77.0 50 SAC50 55.50 68.3 1.0 50 5.0 5.8 88.0 50 Note: There are A suffix for types SAC 5.0 thru type SAC 50. "A" : + / - 5% tolerance. Notes: 1. Schematic Diode Low Capacitance TVS Translent Voltage Suppressor 2. Device must be used with two units in parallel, opposite in polarity as shown in circuit for AC signal line protection - 103 - Characteristics and Application SAC is a Transient Voltage Suppressor Diode in series with a compensation diode for low capacitance. Transient Voltage Suppressors may be used at various points in a circuit to provide various degrees of protection. Transient Voltage Suppressor provides excellent clamping capability. Since the low incremental surge resistance. For telecommumication : multi-protocol serial transceivers. Please refer as below: -) Cellular -) Universal series bus (USB) port production. -) Instrumentation. -) LAN / WAN equipment. -) Peripherals. -) High speed data lines. Tow devices are used in parallel and opposite polarity for protecting one bi-directional ines (FIG. 1), or with a steeling diode for protecting one unidirectional (FIG. 2). The low capacitance TVS series are used on high speeded interfaces such as 2 video line, I C RS-485, RS-422 and USB, for ESD protection the lines which have signal, or data. Please refer as below: 1). Token Ring 2 2). I C FIG. 1 FIG. 2 3). Video line 4). Set top box I/O 5). LAN / WAN equipment. 6). Security system 7). Automatic teller machine Low Capacitance TVS 8). HFC system 9). Networks Device must be used with two units in parallel, opposite in polarity as shown in circuit for AC signal line protection - 104 - Low Capacitance TVS RATINGS AND CHARACTERISTIC CURVES (SAC SERIES) FIG.2- PULSE DERATING CURVE FIG.1- PEAK PULSE POWER RATING CURVE 100 Average Power Percemtage of Rated Power (%) PPPM, Peak Pulse Power (kw) 30 Non-repetitive Pulse Waveform shown in Fig.3 TA=250C 10 Impulse Exponential Decay PPK".5 tld 1.0 PPK td Half Sine td=7tp td Current Waveform 100 s 10 s 1.0 s 1.0ms 10ms FIG.3- PULSE WAVEFORM IPPM-Peak Pulse Current, % IPSM 25 Tj=250C Pulse Width (td) is defined sa the point where the peak current decays to 50% of lPPM tr=10msec. Peak Value lPPM 100 HALF VALUE - IPP lPPM 2 50 10/1000msec. Waveform as defined by R.E.A. td 1.0 2.0 0 0 50 100 150 TL, Lead Temperature( C) 150 0 50 o tp, Pulse Width, (sec.) 0 Peak Power (single pulse) Square PPK 0.1 0.1 s 75 3.0 4.0 t Time (ms) - 105 - 175