C237S/C337S CotoMOS® C237S/C337S When small size and high performance are needed, the SOP package, such as the C237S or C337S, is the industry choice. Both the C237S and the C337S feature low on resistance and fast turn on time. In addition, the C337S offers two fully-independent form A channels for further space savings. Both relays are ideally suited to the needs of Test and Measurement, Industrial, and Telecommunications. C237S/C337S Features u Contact Form: C237S: 1A / C337S: 2A u Load Voltage: 60V Maximum u Operation LED Current: 3.0mA Maximum u Load Current: C237S: 350mA Maximum / C337S: 320mA Maximum u On-Resistance: 1.6Ω Maximum u Output Capacitance: 195pF Typical u Low Off-State Leakage Current: 1.0mA Maximum DIMENSIONS in Inches (Millimeters) C237S C337S 0.181(4.6) Max. 0.382(9.7) Max. 0.016(0.4) 0.200(0.5) 0.280(7.1)Max. 0.200(0.5) 0.173(4.4) 0.006(0.15) 1 2 (+) (-) 3,4: Drain (MOSFET) IDENTIFIES PIN #1 0.006(0.15) 0.100(2.55)Max. 0.300(7.62) TERMINAL IDENTIFICATION 4 3 1: Anode (LED) 2: Cathode (LED) 0.100(2.54) 0.006(0.15) 0.079(2.0) 0.006(0.15) 0.079(2.0) 0.100(2.54) IDENTIFIES PIN #1 0.100(2.55)Max. 0.173(4.4) 0.280(7.1)Max. 0.016(0.4) TERMINAL IDENTIFICATION 8 7 6 5 1 2 3 4 (+) (-) (+) (-) 1,3: Anode (LED) 2,4: Cathode (LED) 5,6,7,8: Drain (MOSFET) tel: (401) 943.2686 | fax: (401) 942.0920 C237S/C337S MAXIMUM RATINGS (Ambient Temperature: 25ºC) Parameters INPUT SPECIFICATIONS Symbol Units Value Continuous LED Current IF mA 50 Peak LED Current IFP mA 500 LED Reverse Voltage VR V 5 Input Power Dissipation Pin mW 75 VL V (AC peak or DC) 60 OUTPUT SPECIFICATIONS Load Voltage IL mA 350 (1Ch) / 320 (2Ch) Peak Load Current IPeak A 2.0 Output Power Dissipation POut mW 200 (1Ch) / 400 (2Ch) PT mW 225 (1Ch) / 450 (2Ch) I/O Breakdown Voltage VI/O Vrms 1500 Operating Temperature TOpr ºC -40 ~ +85 Storage Temperature TStg ºC -40 ~ +100 Load Current RELAY SPECIFICATIONS Total Power Dissipation C237S/C337S ELECTRICAL SPECIFICATIONS (Ambient Temperature: 25ºC) Parameters INPUT LED Forward Voltage Symbol Test Conditions Units Min VF IF=10mA V 1.0 Operation LED Current IF On mA Recovery LED Voltage VF Off V Typ Max 1.5 0.9 3.0 0.8 1.6 0.5 OUTPUT On-Resistance Drain to Drain ROn IF=5mA, IL=Rating Time to flow is within 1 sec. Ω Off-State Leakage Current ILeak VL=60V mA Output Capacitance COut VL=0V, f=1MHz pF 195 ms 0.35 1.5 ms 0.05 0.2 1.0 TRANSMISSION Turn-On Time TOn Turn-Off Time TOff IF=5mA, IL=Rating COUPLED I/O Insulation Resistance RI/O I/O Capacitance CI/O Ω f=1MHz pF Environmental Ratings: Operating Temp: -40°C to +85° C; Storage Temp: –40 to +100 C. All electrical parameters measured at 25° C unless otherwise specified. For most recent data visit www.cotorelay.com COTO TECHNOLOGY, INC. 109 1.3 37 SERIES GRAPHS Load current Vs. Ambient temperature On resistance Vs. Ambient temperature Turn on time Vs. Ambient temperature 2.5 3.0 2.5 600 2.0 DIP 400 SOP 300 Turn on time (ms) On resistance (W) Load current (A) 500 1.5 1.0 2 1.5 1 200 0.5 0.5 100 -20 0 20 40 85 60 0 -40 100 -30 0 20 40 60 85 Ambient temperature (ºC) Ambient temperature (ºC) Turn off time Vs. Ambient temperature LED operate current Vs. Ambient temperature 0 -40 100 0.4 4 4 3 2 DIP SOP 1 0.1 LED turn off current (mA) 5 0.2 0 20 40 60 85 100 85 100 70 80 LED Turn off current Vs. Ambient temperature 5 0.3 -20 Ambient temperature (ºC) 0.5 LED operate current (mA) Turn off time (ms) 0 -40 3 2 DIP 1 SOP 0 -40 -20 0 20 40 60 85 0 -40 100 -20 0 Ambient temperature (ºC) 20 40 60 85 0 -40 100 -20 0 Ambient temperature (ºC) LED forward voltage Vs. Ambient temperature 20 40 60 Ambient temperature (ºC) Voltage Vs. current characteristics of output at MOS portion Off state leakage current 1.5 500 -3 10 Current,A 1.4 400 Off state leakage current (A) LED dropout voltage (V) 300 1.3 200 100 -0.5 1.2 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 1.1 0.3 0.4 0.5 Voltage,V -100 -200 -300 1.0 -6 10 -9 10 -400 -12 10 -500 0 -40 -20 0 20 40 60 85 100 0 10 20 30 40 50 60 Load voltage (V) Ambient temperature (ºC) LED foward current Vs. turn on time characteristics LED foward current Vs. turn off time characteristics 1.2 0.12 1.0 0.10 0.8 0.08 Applied voltage Vs. output capacitance characteristics 400 0.6 0.4 0.06 0.04 200 100 0.02 0.2 0 Output capacitance, pF Turn off time (ms) Turn on time (ms) 300 0 10 20 30 40 LED foward current (mA) 50 60 0 0 10 20 30 40 50 60 LED foward current (mA) tel: (401) 943.2686 | cotorelay.com 0 0 10 20 30 40 50 Applied voltage (V) COTO TECHNOLOGY, INC.