SRLC05 Low Capacitance TVSarray ™ SCOTTSDALE DIVISION This TRANSIENT VOLTAGE SUPPRESSOR (TVS) is packaged in an SOT-143 configuration with very low capacitance giving protection for two high speed data lines connected to terminals 2 and 3. This protection is from electrostatic discharge (ESD) and other induced voltage surges such as electrical fast transient/burst (EFT) that can damage or upset sensitive circuitry as defined in IEC 61000–4-2 and IEC 61000-4-4. With its four steering diodes and one TVS, any positive voltage on the data lines exceeding one diode voltage drop above the positive voltage supply line (Vcc) connected to terminal 4 will be diverted away from the protected line to the supply line. If this also exceeds the TVS voltage, the surge is directed to ground (Gnd) at terminal 1. Negative voltages greater than one voltage drop are diverted to ground. This SRLC05 can also serve as a bidirectional, low capacitance TVS when simply using terminals 2 and 3. In a similar configuration, the terminal 1 can optionally be tied to ground. APPLICATIONS WWW. Microsemi . COM T V S array™ S E R I E S DESCRIPTION • EIA-RS485 data rates: 5 Mbs • 10 Base T Ethernet • USB date rate: 900 Mbs • Video line protection • Wan/Lan • ISDN S/T IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES • • • • • Protects 2 high-speed data lines Surge protection per IEC 61000-4-2, IEC 61000-4-4 Optionally provides bi-directional protection ULTRA LOW CAPACITANCE 6 pF UL94V-0 Flammability Classification MAXIMUM RATINGS • • • • MECHANICAL • • • • Operating Temperature: -55°C to +150°C Storage Temperature: -55°C to +150°C Peak Pulse Power: 200 watts (8/20 µs, Figure 1) Pulse Repetition Rate: < .01% Molded SOT-143 Surface Mount Weight: 0.035 grams (approximate) Body marked with device marking code Pin #1 defined by dot on top of package ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified PART NUMBER R05 CLAMPING VOLTAGE VC @ 5 Amp (Figure 2) VOLTS PEAK FORWARD VOLTAGE Vf @ 1 Amp (Figure 2) VOLTS STANDBY CURRENT ID @ 5 Volts VOLTS CLAMPING VOLTAGE VC @ 1 Amp (Figure 2) VOLTS MIN MAX MAX MAX MAX TYP MAX TYP MAX 5.6 8 11 2 2 4 6 2 3 µA CAPACITANCE C @0V ,(f = 1 MHz) Between I/O pins and GND pF CAPACITANCE C @0V ,(f = 1MHz) Between I/O pins pF Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage VWM. Product selected voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected. Copyright 2001 MSCXXXX.PDF 6-03 2002 REV 0 Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 SRLC05 SRLC05 DEVICE MARKING BREAKDOWN VOLTAGE VBR @1 mA SRLC05 Low Capacitance TVSarray ™ SCOTTSDALE DIVISION Symbol ID DEFINITION Stand Off Voltage: Maximum dc voltage that can be applied over the operating temperature range. Vwm must be selected to be equal or be greater than the operating voltage of the line to be protected. Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given current at a pulse time of 20 µs. Standby Current: Leakage current at VWM. C Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in picofarads. VWM VBR VC WWW. Microsemi . COM S Y M B O L S & D E F I N I T I O NS GRAPHS P P – PEAK PULSE POWER - KW 10000 8/20µs 200W Pulse 1000 100 10 100 nS 1µS 10µS 1mS 10mS 100Ms td – PULSE TIME - SEC Figure 2 Pulse Wave Form Figure 1 OUTLINE AND SCHEMATIC A DIMENSIONS INCHES MM MIN MAX MIN MAX .032 .040 0.80 1.00 A1 .040 .048 1.00 1.20 B --- .057 --- 1.44 C --- .087 --- 2.20 D .075 BSC DIM E 1.90 BSC .067 BSC 1.70 BSC G .032 .040 0.80 1.00 H .134 .140 3.40 3.60 PAD LAYOUT A B C C1 D E F G H I J INCHES MIN MAX 0.070 0.080 0.047 0.055 0.030 0.037 0.015 0.020 0.110 0.119 0.035 0.044 0.071 0.079 0.0006 0.006 0.003 0.007 0.018 0.023 0.083 0.093 MILLIMETERS MIN MAX 1.78 2.03 1.20 1.40 0.77 0.94 0.37 0.50 2.80 3.04 0.89 1.17 1.80 2.00 0.013 0.05 0.085 0.17 0.45 0.60 2.10 2.50 Gnd Signal Line OUTLINE Copyright 2001 MSCXXXX.PDF 6-03 2002 REV 0 1 4 +V or Vcc 2 3 Signal Line SCHEMATIC Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2 SRLC05 DIM