LESHAN RADIO COMPANY, LTD. Dual Transient Voltage Suppressors Array for ESD Protection General Description The LGSOT12CLT1G is a dual monolithic voltage suppressor designed to protect components which are connected to data and transmission lines against ESD. It clamps the voltage just above the logic level supply for positive transients, and to a diode drop below ground for negative transients. It can also work as bidirectional suppressor by connecting only pin1 and 2. LGSOT12CLT1G 3 1 2 SOT– 23 Applications z z z Computers Printers Communication systems Features z 2 Unidirectional Transil functions z z z Low leakage current: IR max< 20 μA at VRM 300W peak pulse power(8/20μs) Transient protection for data lines as per IEC61000-4-2(ESD) 15KV(air) 8KV(contact) IEC61000-4-5(Lightning) see IPPM below ORDERING INFORMATION Device LGSOT12CLT1G Package SOT–23 Shipping 3000/Tape & Reel Absolute Ratings (Tamb=25°C ) Symbol Parameter Value Units PPP Peak Pulse Power (tp = 8/20μs) 300 W TL Maximum lead temperature for soldering during 10s 260 °C Tstg Storage Temperature Range -55 to +15 °C Top Operating Temperature Range -40 to +125 °C Tj Maximum junction temperature 150 °C IEC61000-4-2 air discharge 15 kv IEC61000-4-2 contact discharge 8 Electrostatic discharge VPP 1/7 LESHAN RADIO COMPANY, LTD. LGSOT12CLT1G Electrical Parameter Symbol Parameter VRM Stand-off voltage VBR Breakdown voltage VCL Clamping voltage IRM Leakage current IPPM Peak pulse current Electrical Characteristics Maximum Minimum Maximum Maximum Leakage Breakdown Clamping Pulse Peak Current Voltage Voltage Current @ VRM 1mA VRM IRM VBR V µA V V LGSOT04CLT1G 4.0 20.0 5.0 LGSOT05CLT1G 5.0 20.0 LGSOT08CLT1G 8.0 LGSOT12CLT1G LGSOT15CLT1G Rated Stand-off Part Numbers Maximum Capacitance Voltage 1A 1) 5A 1) tp=8/20us 0v, 1MHz IPPM C V A pF 8.5 10.5 17 300 6.0 9.8 12.5 17 220 5.0 8.5 13.4 15.0 15 190 12.0 1.0 13.3 19.0 28.0 12 90 15.0 1.0 16.7 24 39.0 10 60 VCL 1).8/20 waveform used. (see fig2.) Typical Characteristics Fig1. Peak Pulse Power VS Pulse Time 2/7 LESHAN RADIO COMPANY, LTD. LGSOT12CLT1G Fig2. Pulse Waveform Fig3.Power Derating 3/7 LESHAN RADIO COMPANY, LTD. LGSOT12CLT1G Application Note Electrostatic discharge (ESD) is a major cause of failure in electronic systems. Transient Voltage Suppressors (TVS) are an ideal choice for ESD protection. They are capable of clamping the incoming transient to a low enough level such that damage to the protected semiconductor is prevented. Surface mount TVS arrays offer the best choice for minimal lead inductance. They serve as parallel protection elements, connected between the signal line to ground. As the transient rises above the operating voltage of the device, the TVS array becomes a low impedance path diverting the transient current to ground. The LGSOT12CLT1G array is the ideal board evel protection of ESD sensitive semiconductor components. The tiny SOT23 package allows design flexibility in the design of high density boards where the space saving is at a premium. This enables to shorten the routing and contributes to hardening againt ESD. 4/7 LESHAN RADIO COMPANY, LTD. LGSOT12CLT1G SOT-23 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,1982 2. CONTROLLING DIMENSION: INCH. A L 3 1 V 2 DIM B S G C D H K J MIN 0.1102 0.0472 0.0350 0.0150 0.0701 0.0005 0.0034 0.0140 0.0350 0.0830 0.0177 A B C D G H J K L S V INCHES MAX 0.1197 0.0551 0.0440 0.0200 0.0807 0.0040 0.0070 0.0285 0.0401 0.1039 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.89 1.11 0.37 0.50 1.78 2.04 0.013 0.100 0.085 0.177 0.35 0.69 0.89 1.02 2.10 2.64 0.45 0.60 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 0.031 0.8 inches mm 5/7 LESHAN RADIO COMPANY, LTD. EMBOSSED TAPE AND REEL DATA FOR DISCRETES T Max Outside Dimension Measured at Edge 13.0mm ± 0.5mm 1.5mm Min (.512 ±.002’’) (.06’’) A 50mm Min (1.969’’) 20.2mm Min (.795’’) Full Radius G Inside Dimension Measured Near Hub Size A Max G 8 mm 330mm (12.992’’) 8.4mm+1.5mm, -0.0 (.33’’+.059’’, -0.00) T Max 14.4mm (.56’’) Reel Dimensions Metric Dimensions Govern –– English are in parentheses for reference only Storage Conditions Temperature: 5 to 40 Deg.C (20 to 30 Deg. C is preferred) Humidity: 30 to 80 RH (40 to 60 is preferred ) Recommended Period: One year after manufacturing (This recommended period is for the soldering condition only. The characteristics and reliabilities of the products are not restricted to this limitation) 6/7 LESHAN RADIO COMPANY, LTD. Shipment Specification CPN LABEL LABEL LABEL Dim(Unit:mm) 195mm*195mm*150mm 10 Reel 10Reel/Inner Box 30KPCS/Inner Box 3000PCS/Reel 80KPCS/Inner Box (SOT-723,SOD-723,SOD-923) 8000PCS/Reel (SOT-723,SOD-723,SOD-923) Dim(Unit:mm) LABEL 460mm*400mm*420mm MARK 乐山无线电股份有限公司 Leshan Radio Company,Ltd. 12 Inner Box/Carton 360KPCS/Carton 960KPCS/Carton (SOT-723,SOD-723,SOD-923) 7/7