Communication BUS Varistor GENERAL DESCRIPTION The CAN BUS and FlexRay varistor is a zinc oxide (ZnO) based ceramic semiconductor device with non-linear voltage-current characteristics (bi-directional) similar to back-to-back Zener diodes and an EMC capacitor in parallel (see equivalent circuit model). They have the added advantage of greater current and energy handling capabilities as well as EMI/RFI attenuation. Devices are fabricated by a ceramic sintering process that yields a structure of conductive ZnO grains surrounded by electrically insulating barriers, creating varistor like behavior. HOW TO ORDER CAN 0001 Style CAN = CAN BUS FLX = FlexRay Case Size 0001 = 0603 Discrete 0002 = 0405 2-Element 0004 = 0612 4-Element 0005 = 0402 Discrete D P Packaging Code Termination (Reel Size) P = Ni/Sn Alloy D = 7" reel (1,000 pcs.) (Plated) R = 7" reel (4,000 pcs.) T = 13" reel (10,000 pcs.) W = 7" reel (10,000 pcs.) 0402 and 0201 only PERFORMANCE CHARACTERISTICS AVX Part No. CAN0001_ _ CAN0002_ _ CAN0004_ _ CAN0005_ _ FLX0005_ _ VW (DC) ≤18 ≤18 ≤18 ≤18 ≤18 VW (AC) ≤14 ≤14 ≤14 ≤14 ≤14 VB 120 70 100 33 26 IL 2 2 2 2 5 ET 0.015 0.015 0.015 0.015 0.020 IP 4 4 4 4 4 Cap. 22 22 22 37 17 Case Size 0603 0405 0612 0402 0402 Elements 1 2 4 1 1 Termination Finish Code Packaging Code VW (DC) VW (AC) VB VC IVC DC Working Voltage (V) AC Working Voltage (V) Typical Breakdown Voltage (V @ 1mADC ) Clamping Voltage (V @ IVC) Test Current for VC (A, 8x20μS) IL ET IP Cap Temp Range 10.0 To Device Requiring Protection PCB Trace LP RV C Insertion Loss (dB) EQUIVALENT CIRCUIT MODEL Discrete MLV Model Maximum Leakage Current at the Working Voltage (μA) Transient Energy Rating (J, 10x1000μS) Peak Current Rating (A, 8x20μS) Maximum Capacitance (pF) @ 1 MHz and 0.5Vrms -55ºC to +125ºC 0.0 -10.0 -20.0 -30.0 -40.0 RP -50.0 0 Ron C = Ron = = Lp LEAD-FREE COMPATIBLE COMPONENT CAN0001 Voltage Variable resistance (per VI curve) 1012 Ω defined by voltage rating and energy level turn on resistance parallel body inductance 100 1000 10000 CAN0005 FLX0005 Typical Pulse Rating Curve 10000 Peak Power (W) = ≥ 10 Frequency (MHz) Solder Pad Where: Rv Rp 1 1000 100 10 10 100 1000 10000 Pulse Duration (µS) 63 Communication BUS Varistor PHYSICAL DIMENSIONS mm (inches) 0402 Discrete 0603 Discrete 0405 Array 0612 Array Length Width 1.00 ±0.10 (0.040 ±0.004) 0.50 ±0.10 (0.020 ±0.004) 1.60 ±0.15 (0.063 ±0.006) 0.80 ±0.15 (0.032 ±0.006) 1.00 ±0.15 (0.039 ±0.006) 1.37 ±0.15 (0.054 ±0.006) 1.60 ±0.20 (0.063 ±0.008) 3.20 ±0.20 (0.126 ±0.008) Thickness Term Band Width 0.60 Max. (0.024 Max.) 0.25 ±0.15 (0.010 ±0.006) 0.90 Max. (0.035 Max.) 0.35 ±0.15 (0.014 ±0.006) 0.66 Max. (0.026 Max.) 0.36 ±0.10 (0.014 ±0.004) 1.22 Max. (0.048 Max.) 0.41 ±0.10 (0.016 ±0.010) SOLDER PAD DIMENSIONS mm (inches) 0405 Array 0402/0603 Discrete 0612 Array E E D D A A C B A B B C C A B APPLICATION 0402 Discrete AVX CAN BUS and FlexRay varistors offer significant advantages in general areas of a typical CAN or FlexRay network as shown on the right. Some of the advantages over diodes include: • space savings • higher ESD capability @ 25kV contact • higher in rush current (4A) 8 x 20μS • FIT rate ≤0.1 failures (per billion hours) 0603 Discrete 0405 Array 0612 Array A B C 0.61 (0.024) 0.89 (0.035) 0.46 (0.018) 0.89 0.51 (0.020) 0.76 (0.030) 0.74 (0.029) 1.65 1.70 (0.067) 2.54 (0.100) 0.12 (0047) 2.54 – – 0.38 (0.015) 0.46 0.64 (0.025) 0.76 (0.035) (0.065) (0.100) (0.018) (0.030) 0402, 0603 Discrete 0405 Array Wheel Node FlexRayTM CAN Wheel Node Powertrain Body Control Module/CAN Gateway X-by-Wire Master Wheel Node Smart Junction Box Wheel Node 64 Instrument Cluster Door Module Dash Board Node HVAC D E – – 0612 Array