05172 SR70 Only One Name Means ProTek’Tion™ ultra low capacitance steering diode array Description The SR70 is an ultra low capacitance steering diode array. Designed for protection against Electrostatic Discharge (ESD), Electrical Fast Transients (EFT) and secondary lightning threats, this device is ideal for use in high-speed signal interface application such as USB, microprocessor bus and mobile electronics. SOT-143 package The SR70 is capable of protecting one line pair or two single lines via the steering of transient voltage to power lines or ground. Its ultra low capacitance allows maintenance of signal integrity for high-speed data lines while protecting the circuit ICs from the damage of severe transients. An extremely low leakage current makes the SR70 suitable for battery powered devices and POE applications. The SR70 is available in the small SOT-143 package, which reduces internal lead inductance for low, overshoot voltage during fast front time transient events like ESD. This device meets the IEC 61000-4-2 and IEC 61000-4-4 requirements. Features applications • Compatible with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV • Compatible with IEC 61000-4-4 (EFT): 40A - 5/50ns • Compatible with IEC 61000-4-5 (Surge): 24A, 8/20µs - Level 2(LineGnd) & Level 3 (Line-Line) • 225 Milliwatts Continuous Power Dissipation • Provides Two Lines of Protection • Low Leakage Current < 1.0µA • Ultra Low Capacitance: 3pF Typical • RoHS Compliant • REACH Compliant • USB Interface Ports • POE Applications • Video • Handheld Electronics • Laptops Mechanical characteristics • Molded JEDEC SOT-143 Package • Approximate Weight: 9 milligrams • Lead-Free Pure-Tin Plating (Annealed) • Solder Reflow Temperature: Pure-Tin - Sn, 100: 260-270°C • 8mm Tape and Reel Per EIA Standard 481 • Flammability Rating UL 94V-0 PIN CONFIGURATION VN 1 4 VP I/O 1 2 05172.R7 8/10 3 I/O 2 Page 1 www.protekdevices.com 05172 SR70 Only One Name Means ProTek’Tion™ typical device characteristics MAXIMUM RATINGS @ 25°C Unless Otherwise Specified PARAMETER SYMBOL VALUE UNITS TA -55 to 150 °C Storage Temperature TSTG -55 to 150 °C Forward Peak Pulse Current (tp = 8/20µs) IPP 24 A Operating Temperature ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified PART NUMBER SR70 DEVICE MARKING REPETITIVE PEAK REVERSE VOLTAGE MAXIMUM REVERSE breakdown voltage MAXIMUM REVERSE LEAKAGE CURRENT VRRM VOLTS I @ 50µA V(BR) VOLTS 70 85 PSA MAXIMUM FORWARD CLAMPING VOLTAGE 8/20µs I PP @ 24A V FC VOLTS maximum CAPACITANCE (Note 1) @ V RRM IR µA MAXIMUM FORWARD CLAMPING VOLTAGE 8/20µs I PP @ 1A V FC VOLTS 1 1.5 7 10 0V, 1MHz Cj pF notes 1. Measured between I/O pins and ground. figure 1 pulse wave form IPP - Peak Pulse Current - % of IPP 120 100 TEST WAVEFORM PARAMETERS tf = 8µs td = 20µs Peak Value IPP 80 e-t 60 40 td = t/(IPP/2) 20 0 05172.R7 8/10 tf 0 5 10 15 t - Time - µs Page 2 20 25 30 www.protekdevices.com 05172 SR70 Only One Name Means ProTek’Tion™ SOT-143 package information A outline dimensions dim millimeters inches min max min max A 2.80 3.04 0.110 0.120 B 1.20 1.39 0.047 0.055 C 0.84 1.14 0.033 0.045 D 0.39 0.50 0.015 0.020 F 0.79 0.93 0.031 0.037 G 1.78 2.03 0.070 0.080 J 0.08 0.15 0.003 0.006 K 0.46 0.60 0.018 0.024 L 0.445 0.60 0.0175 0.024 L1 0.40 0.60 0.016 0.024 R 0.72 0.83 0.028 0.033 S 2.11 2.48 0.083 0.098 L G B S J K L1 F D H C R NOTEs 1. Dimensioning and tolerances per ANSI Y14.M, 1985. 2. Controlling dimension: inches. 3. Dimensions are exclusive of mold flash and metal burrs. pad layout dimensions dim millimeters A C inches min max min max A 1.88 2.13 0.074 0.084 B 1.80 2.06 0.071 0.081 C 0.71 0.97 0.028 0.038 D 0.76 1.02 0.030 0.040 E 1.07 1.32 0.042 0.052 F 0.71 0.97 0.028 0.038 B D E F NOTES 1. Controlling dimension: inches. 05172.R7 8/10 Page 3 www.protekdevices.com 05172 SR70 Only One Name Means ProTek’Tion™ TAPE AND REEL P0 t 10 Pitches Cumulative Tolerance on Tape. ± 0.2 P2 D E Top Cover Tape Pin 1 A0 F W K0 B0 P User Direction of Feed specifications Reel Dia. Tape Width 178mm (7”) 8mm A0 B0 K0 D E F W P0 P2 P 3.10 ± 0.10 2.70 ± 0.10 1.35 ± 0.10 1.50 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.30 4.00 ± 0.10 2.00 ± 0.05 4.00 ± 0.10 tmax 0.25 Notes 1. 2. 3. 4. 5. Dimensions are in millimeters. Surface mount product is taped and reeled in accordance with EIA-481. Suffix - T7 = 7” Reel - 3,000 pieces per 8mm tape. Suffix - T13 = 13” Reel - 10,000 pieces per 8mm tape. Marking on Part - marking code (see page 2) and date code. Package outline, pad layout and tape specifications per document number 06011.R4 8/10. ORDERING INFORMATION base PART NUMBER LEADFREE SUFFIX TAPE SUFFIX QTY/REEL REEL SIZE TUBE qty SR70 -LF -T7 3000 7” n/a SR70 -LF -T13 10,000 13” n/a 05172.R7 8/10 Page 4 www.protekdevices.com 05172 SR70 Only One Name Means ProTek’Tion™ company information COMPANY PROFILE ProTek Devices, based in Tempe, Arizona USA, is a manufacturer of Transient Voltage Suppression (TVS) products designed specifically for the protection of electronic systems from the effects of lightning, Electrostatic Discharge (ESD), Nuclear Electromagnetic Pulse (NEMP), inductive switching and EMI/RFI. With over 25 years of engineering and manufacturing experience, ProTek designs TVS devices that provide application specific protection solutions for all electronic equipment/systems. ProTek Devices Analog Products Division, also manufactures analog interface, control, RF and power management products. CONTACT US Corporate Headquarters 2929 South Fair Lane Tempe, Arizona 85282 USA By Telephone General: 602-431-8101 Sales: 602-414-5109 Customer Service: 602-414-5114 By Fax General: 602-431-2288 By E-mail: Sales: [email protected] Customer Service: [email protected] Technical Support: [email protected] Web www.protekdevices.com www.protekanalog.com COPYRIGHT © ProTek Devices 2002 - This literature is subject to all applicable copyright laws and is not for resale in any manner. SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice. DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice and that the final judgement concerning selection and specifications is the buyer’s and that in furnishing engineering and technical assistance. ProTek assumes no responsibility with respect to the selection or specifications of such products. ProTek makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ProTek assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability without limitation special, consequential or incidental damages. LIFE SUPPORT POLICY: ProTek Devices products are not authorized for use in life support systems without written consent from the factory. 05172.R7 8/10 Page 5 www.protekdevices.com