GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M WHITE PACKAGE (-M SUFFIX) SCHEMATIC 6 1 1 6 2 5 6 1 3 6 NC 4 PIN 1. ANODE 2. CATHODE 3. NO CONNECTION 4. EMITTER 5. COLLECTOR 6. BASE 1 BLACK PACKAGE (NO -M SUFFIX) 6 1 6 1 6 1 DESCRIPTION The MOC8100, TIL111 and TIL117 optocouplers consist of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a 6-pin dual in-line package. FEATURES • The TIL111 is also available in both black and white packages by specifying -M suffix, e.g. TIL111-M for the white package and no suffix for the black package. • UL recognized (File # E90700) • VDE recognized (File # 94766); (File #102497 for white package) - Add option V for white package (e.g., TIL111V-M) - Add option 300 for black package (e.g., TIL111.300) APPLICATIONS • Power supply regulators • Digital logic inputs • Microprocessor inputs • Appliance sensor systems • Industrial controls © 2005 Fairchild Semiconductor Corporation Page 1 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) Parameter Device Symbol Value Units Storage Temperature All TSTG -55 to +150 °C TOTAL DEVICE Operating Temperature All TOPR -55 to +100 °C Lead Solder Temperature All TSOL 260 for 10 sec °C Total Device Power Dissipation @ TA = 25°C Derate above 25°C All PD 250 mW 3.3 (non-M) 2.94 (-M) mW/°C All IF 100 (non-M), 60 (-M) mA EMITTER DC/Average Forward Input Current Reverse Input Voltage Forward Current - Peak (300µs, 2% Duty Cycle) LED Power Dissipation @ TA = 25 °C Derate above 25°C TIL111/TIL111-M MOC8100-M/TIL117-M All VR IF(pk) 3 6 V 3 A 150 (non-M), 120 (-M) mW 2.0 (non-M), 1.41 (-M) mW/°C All PD Collector-Emitter Voltage All VCEO 30 V Collector-Base Voltage All VCBO 70 V TIL111-M/TIL117-M VECO 7 Emitter-Base Voltage All VEBO 7 Detector Power Dissipation @ TA = 25 °C Derate above 25°C All PD DETECTOR Emitter-Collector Voltage © 2005 Fairchild Semiconductor Corporation Page 2 of 14 V 150 mW 2.0 (non-M), 1.76 (-M) mW/°C 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) INDIVIDUAL COMPONENT CHARACTERISTICS Parameter Test Conditions Device Symbol Min Typ* Max 1.2 1.4 1.2 1.4 Unit EMITTER Input Forward Voltage (IF = 16 mA) (TA = 25°C) TIL111/TIL111-M (IF = 10 mA; for (TA = 0-70°C) MOC8100-M) (T = -55°C) A (IF = 16 mA; for TIL117-M) (TA = +100°C) Reverse Leakage Current MOC8100-M/ TIL117-M VF V 1.32 1.10 (VR = 3.0 V) TIL111/TIL111-M/ TIL117-M (VR = 6.0V) MOC8100-M IR 0.001 10 µA 0.001 10 µA DETECTOR Collector-Emitter Breakdown Voltage (IC = 1.0 mA, IF = 0) All BVCEO 30 100 V Collector-Base Breakdown Voltage (IC = 10 µA, IF = 0) All BVCBO 70 120 V Emitter-Base Breakdown Voltage (IE = 10 µA, IF = 0) All BVEBO 7 10 V Emitter-Collector Breakdown Voltage (IF = 100µA, IF = 0) TIL111-M TIL117-M BVECO 7 10 V (VCE = 10 V, IF = 0) TIL111/TIL111-M/ TIL117-M ICEO 1 50 nA (VCE = 5V, TA = 25°C) MOC8100-M ICEO 0.5 25 nA (VCE = 30 V, IF = 0, TA = 70°C) TIL117-M/ MOC8100-M ICEO 0.2 50 µA (VCB = 10 V) TIL111/TIL111-M/ TIL117-M ICBO 20 nA (VCB = 5 V) MOC8100-M ICBO 10 nA All CCE Collector-Emitter Dark Current Collector-Base Dark Current Capacitance (VCE = 0 V, f = 1 MHz) 8 pF ISOLATION CHARACTERISTICS Characteristic Input-Output Isolation Voltage Test Conditions Symbol (Non ‘-M’, Black Package) (f = 60 Hz, t = 1 min) (‘-M’, White Package) (f = 60 Hz, t = 1 sec) Isolation Resistance Isolation Capacitance VISO (VI-O = 500 VDC) RISO (VI-O = 0, f = 1 MHz) CISO Min Typ* Max Units 5300 Vac(rms) 7500 Vac(pk) 1011 Ω 2 pF Note * Typical values at TA = 25°C unless otherwise noted © 2005 Fairchild Semiconductor Corporation Page 3 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M TRANSFER CHARACTERISTICS (TA = 25°C Unless otherwise specified.) DC Characteristic Current Transfer Ratio, Collector to Emitter Test Conditions Symbol (IF = 10 mA, VCE = 10 V) (IF = 1 mA, VCE = 5 V) CTRCE (IF = 1 mA, VCE = 5 V, TA = 0 to +70°C) On-State Collector Current (Phototransistor Operation) (IF = 16 mA, VCE = 0.4 V) On-State Collector Current (Photodiode Operation) (IF = 16 mA, VCB = 0.4V) IC(ON) (IC = 500 µA, IF = 10 mA) Collector-Emitter Saturation Voltage (IC = 2 mA, IF = 16 mA) VCE (SAT) (IC = 100 µA, IF = 1 mA) Device Min TIL117-M 50 MOC8100-M TIL111 TIL111-M Typ* Max Unit % 50 % 30 2 mA 7 µA TIL117-M 0.4 TIL111 TIL111-M 0.4 MOC8100-M 0.5 MOC8100-M 20 TIL117-M 10 V AC Characteristic Turn-On Time Turn-Off Time TON (IC = 2 mA, VCC = 10 V, RL = 100Ω) (Fig. 20) TOFF Rise Time tr Fall Time tf Rise Time (Phototransistor Operation) Fall Time (Phototransistor Operation) (IC(ON) = 2 mA, VCC = 10 V, RL = 100Ω) (Fig. 20) tr tf MOC8100-M 20 TIL117-M 10 MOC8100-M TIL117-M TIL111 TIL111-M 2 µs µs µs 2 10 µs * Typical values at TA = 25°C © 2005 Fairchild Semiconductor Corporation Page 4 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M TYPICAL PERFORMANCE CURVES Fig. 2 LED Forward Voltage vs. Forward Current (White Package) 1.8 1.8 1.7 1.7 VF - FORWARD VOLTAGE (V) VF - FORWARD VOLTAGE (V) Fig. 1 LED Forward Voltage vs. Forward Current (Black Package) 1.6 1.5 1.4 TA = -55°C 1.3 1.2 TA = 25°C 1.1 TA = 100°C 1.6 1.5 1.4 TA = -55°C 1.3 TA = 25°C 1.2 TA = 100°C 1.1 1.0 1.0 1 10 100 1 10 IF - LED FORWARD CURRENT (mA) 100 IF - LED FORWARD CURRENT (mA) Fig.3 Normalized CTR vs. Forward Current (Black Package) Fig.4 Normalized CTR vs. Forward Current (White Package) 1.4 1.6 VCE = 5.0V TA = 25°C Normalized to IF = 10 mA VCE = 5.0V TA = 25°C 1.4 1.2 Normalized to IF = 10 mA 1.2 NORMALIZED CTR NORMALIZED CTR 1.0 0.8 0.6 0.4 1.0 0.8 0.6 0.4 0.2 0.2 0.0 0.0 0 5 10 15 20 0 2 IF - FORWARD CURRENT (mA) 4 6 8 10 12 14 16 18 20 IF - FORWARD CURRENT (mA) Fig. 5 Normalized CTR vs. Ambient Temperature (Black Package) Fig. 6 Normalized CTR vs. Ambient Temperature (White Package) 1.6 1.4 1.4 1.2 IF = 5 mA NORMALIZED CTR NORMALIZED CTR IF = 5 mA 1.2 IF = 10 mA 1.0 0.8 0.6 IF = 10 mA 0.8 IF = 20 mA 0.6 Normalized to IF = 10 mA TA = 25°C 0.4 Normalized to IF = 10 mA TA = 25°C IF = 20 mA 0.4 -75 1.0 0.2 -50 -25 0 25 50 75 100 125 TA - AMBIENT TEMPERATURE (°C) © 2005 Fairchild Semiconductor Corporation -60 -40 -20 0 20 40 60 80 100 TA - AMBIENT TEMPERATURE (°C) Page 5 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M Fig. 8 CTR vs. RBE (Unsaturated) (White Package) Fig. 7 CTR vs. RBE (Unsaturated) (Black Package) 1.0 1.0 NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN)) NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN)) MOC8100-M 0.9 VCE= 5.0 V 0.8 IF = 20 mA 0.7 0.6 IF = 10 mA 0.5 0.4 IF = 5 mA 0.3 0.2 0.1 0.9 IF = 20 mA 0.8 IF = 10 mA 0.7 IF = 5 mA 0.6 0.5 0.4 0.3 0.2 VCE= 5.0 V 0.1 0.0 0.0 10 100 1000 10 100 RBE- BASE RESISTANCE (kΩ) Fig. 9 CTR vs. RBE (Saturated) (Black Package) Fig. 10 CTR vs. RBE (Saturated) (White Package) 1.0 NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN)) NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN)) 1.0 0.9 VCE= 0.3 V 0.8 IF = 20 mA 0.7 0.6 IF = 10 mA 0.5 0.4 IF = 5 mA 0.3 0.2 0.1 0.9 VCE= 0.3 V 0.8 IF = 20 mA 0.7 0.6 IF = 10 mA 0.5 0.4 0.3 IF = 5 mA 0.2 0.1 0.0 0.0 10 100 1000 10 100 RBE- BASE RESISTANCE (k Ω) 10 1 IF = 2.5 mA 0.1 IF = 10 mA IF = 20 mA IF = 5 mA TA = 25˚C 0.001 0.01 0.1 1 10 Fig. 12 Collector-Emitter Saturation Voltage vs Collector Current (White Package) VCE (SAT) - COLLECTOR-EMITTER SATURATION VOLTAGE (V) 100 0.01 100 TA = 25˚C 10 1 IF = 2.5 mA 0.1 IF = 20 mA 0.01 IF = 5 mA 0.001 0.01 IF = 10 mA 0.1 1 10 IC - COLLECTOR CURRENT (mA) IC - COLLECTOR CURRENT (mA) © 2005 Fairchild Semiconductor Corporation 1000 RBE- BASE RESISTANCE (k Ω) Fig. 11 Collector-Emitter Saturation Voltage vs Collector Current (Black Package) VCE (SAT) - COLLECTOR-EMITTER SATURATION VOLTAGE (V) 1000 RBE- BASE RESISTANCE (kΩ) Page 6 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M Fig. 14 Switching Speed vs. Load Resistor (White Package) Fig. 13 Switching Speed vs. Load Resistor (Black Package) 1000 1000 IF = 10 mA VCC = 10 V TA = 25°C 100 SWITCHING SPEED - (µs) SWITCHING SPEED - (µs) IF = 10 mA VCC = 10 V TA = 25°C Toff 10 Tf Ton 1 Tr 0.1 100 Toff 10 Ton 1 Tr 1 10 100 0.1 1 10 100 R-LOAD RESISTOR (kΩ) R-LOAD RESISTOR (kΩ) Fig. 16 Normalized ton vs. RBE (White Package) Fig. 15 Normalized ton vs. RBE (Black Package) 5.0 5.0 VCC = 10 V IC = 2 mA RL = 100 Ω 4.5 NORMALIZED ton - (ton(RBE) / ton(open)) NORMALIZED ton - (ton(RBE) / ton(open)) Tf 0.1 0.1 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 VCC = 10 V IC = 2 mA RL = 100 Ω 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 10 100 1000 10000 10 100000 RBE- BASE RESISTANCE (k Ω) 1.3 NORMALIZED toff - (toff(RBE) / toff(open)) 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 VCC = 10 V IC = 2 mA RL = 100 Ω 0.4 1000 10000 100000 Fig. 18 Normalized toff vs. RBE (White Package) 1.4 0.5 100 RBE- BASE RESISTANCE (k Ω) Fig. 17 Normalized toff vs. RBE (Black Package) NORMALIZED toff - (toff(RBE) / toff(open)) MOC8100-M 0.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 VCC = 10 V IC = 2 mA RL = 100 Ω 0.5 0.4 0.3 0.2 0.2 0.1 0.1 10 100 1000 10000 100000 RBE- BASE RESISTANCE (k Ω) © 2005 Fairchild Semiconductor Corporation 10 100 1000 10000 100000 RBE- BASE RESISTANCE (k Ω) Page 7 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M Fig. 19 Dark Current vs. Ambient Temperature 10000 ICEO - COLLECTOR -EMITTER DARK CURRENT (nA) VCE = 10 V TA = 25°C 1000 100 10 1 0.1 0.01 0.001 0 20 40 60 80 100 TA - AMBIENT TEMPERATURE (°C) TEST CIRCUIT WAVE FORMS VCC = 10V INPUT PULSE IC IF INPUT RL 10% OUTPUT OUTPUT PULSE 90% RBE tr ton tf toff Adjust IF to produce IC = 2 mA Figure 20. Switching Time Test Circuit and Waveforms © 2005 Fairchild Semiconductor Corporation Page 8 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M White Package (-M Suffix) Package Dimensions (Through Hole) Package Dimensions (Surface Mount) 0.350 (8.89) 0.320 (8.13) 0.350 (8.89) 0.320 (8.13) Pin 1 ID Pin 1 ID 0.260 (6.60) 0.240 (6.10) 0.070 (1.77) 0.040 (1.02) Seating Plane SEATING PLANE 0.260 (6.60) 0.240 (6.10) 0.320 (8.13) 0.014 (0.36) 0.010 (0.25) 0.200 (5.08) 0.115 (2.93) 0.070 (1.77) 0.040 (1.02) 0.320 (8.13) 0.014 (0.36) 0.010 (0.25) 0.200 (5.08) 0.115 (2.93) 0.100 (2.54) 0.015 (0.38) 0.012 (0.30) 0.008 (0.20) 0.025 (0.63) 0.020 (0.51) 0.020 (0.50) 0.016 (0.41) 0.100 (2.54) 15° 0.390 (9.90) 0.332 (8.43) 0.100 [2.54] 0.035 (0.88) 0.012 (0.30) 0.020 (0.50) 0.016 (0.41) 0.012 (0.30) Package Dimensions (0.4” Lead Spacing) Recommended Pad Layout for Surface Mount Leadform 0.350 (8.89) 0.320 (8.13) PIN 1 ID 0.070 (1.78) 0.260 (6.60) 0.240 (6.10) 0.060 (1.52) SEATING PLANE 0.070 (1.77) 0.040 (1.02) 0.014 (0.36) 0.010 (0.25) 0.425 (10.79) 0.100 (2.54) 0.305 (7.75) 0.030 (0.76) 0.200 (5.08) 0.115 (2.93) 0.100 (2.54) 0.015 (0.38) 0.020 (0.50) 0.016 (0.41) 0.100 [2.54] 0.012 (0.30) 0.008 (0.21) 0.425 (10.80) 0.400 (10.16) NOTE All dimensions are in inches (millimeters) © 2005 Fairchild Semiconductor Corporation Page 9 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M Black Package (No -M Suffix) Package Dimensions (Through Hole) Package Dimensions (Surface Mount) PIN 1 ID. 0.350 (8.89) 0.330 (8.38) 3 0.270 (6.86) 0.240 (6.10) 2 PIN 1 ID. 1 SEATING PLANE 0.270 (6.86) 0.240 (6.10) 0.350 (8.89) 0.330 (8.38) 4 0.070 (1.78) 0.045 (1.14) 5 6 0.300 (7.62) TYP 0.070 (1.78) 0.045 (1.14) 0.200 (5.08) 0.115 (2.92) 0.200 (5.08) 0.165 (4.18) 0.020 (0.51) MIN 0.154 (3.90) 0.100 (2.54) 0.022 (0.56) 0.016 (0.41) 0.016 (0.40) 0.008 (0.20) 0.022 (0.56) 0.016 (0.41) 0° to 15° 0.016 (0.41) 0.008 (0.20) 0.020 (0.51) MIN 0.100 (2.54) TYP 0.016 (0.40) MIN 0.315 (8.00) MIN 0.405 (10.30) MAX 0.300 (7.62) TYP Lead Coplanarity : 0.004 (0.10) MAX 0.100 (2.54) TYP Package Dimensions (0.4” Lead Spacing) Recommended Pad Layout for Surface Mount Leadform PIN 1 ID 0.070 (1.78) 0.270 (6.86) 0.240 (6.10) 0.060 (1.52) 0.350 (8.89) 0.330 (8.38) SEATING PLANE 0.415 (10.54) 0.100 (2.54) 0.070 (1.78) 0.045 (1.14) 0.295 (7.49) 0.030 (0.76) 0.200 (5.08) 0.135 (3.43) 0.154 (3.90) 0.100 (2.54) 0.004 (0.10) MIN 0.016 (0.40) 0.008 (0.20) 0° to 15° 0.022 (0.56) 0.016 (0.41) 0.100 (2.54) TYP 0.400 (10.16) TYP NOTE All dimensions are in inches (millimeters) © 2005 Fairchild Semiconductor Corporation Page 10 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M ORDERING INFORMATION Order Entry Identifier Black Package (No Suffix) White Package (-M Suffix) Option .S S .SD SR2 .W T 0.4" Lead Spacing .300 V VDE 0884 .300W TV VDE 0884, 0.4" Lead Spacing .3S SV VDE 0884, Surface Mount .3SD SR2V Surface Mount Lead Bend Surface Mount; Tape and reel VDE 0884, Surface Mount, Tape & Reel MARKING INFORMATION 1 3 TIL111 2 V XX YY K 6 1 V 5 4 3 Black Package, No Suffix TIL111 2 X YY Q 6 4 5 White Package, -M Suffix Definitions 1 Fairchild logo 2 Device number 3 VDE mark (Note: Only appears on parts ordered with VDE option – See order entry table) 4 One or two digit year code • Two digits for black package parts, e.g., ‘03’ • One digit for white package parts, e.g., ‘3’ 5 Two digit work week ranging from ‘01’ to ‘53’ 6 Assembly package code *Note – Parts built in the white package (M suffix) that do not have the ‘V’ option (see definition 3 above) that are marked with date code ‘325’ or earlier are marked in the portrait format. © 2005 Fairchild Semiconductor Corporation Page 11 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M Carrier Tape Specifications (Black Package, No Suffix) 12.0 ± 0.1 4.85 ± 0.20 0.30 ± 0.05 4.0 ± 0.1 4.0 ± 0.1 Ø1.55 ± 0.05 1.75 ± 0.10 7.5 ± 0.1 13.2 ± 0.2 9.55 ± 0.20 0.1 MAX 10.30 ± 0.20 16.0 ± 0.3 Ø1.6 ± 0.1 User Direction of Feed Carrier Tape Specifications (White Package, -M Suffix) 12.0 ± 0.1 4.5 ± 0.20 2.0 ± 0.05 0.30 ± 0.05 4.0 ± 0.1 Ø1.5 MIN 1.75 ± 0.10 11.5 ± 1.0 21.0 ± 0.1 9.1 ± 0.20 0.1 MAX 10.1 ± 0.20 24.0 ± 0.3 Ø1.5 ± 0.1/-0 User Direction of Feed © 2005 Fairchild Semiconductor Corporation Page 12 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M Reflow Profile (White Package, -M Suffix) 300 280 260 240 220 200 180 160 °C 140 120 100 80 60 40 20 0 260°C >245°C = 42 Sec Time above 183°C = 90 Sec 1.822°C/Sec Ramp up rate 33 Sec 0 60 120 180 270 360 Time (s) Reflow Profile (Black Package, No Suffix) Temperature (°C) 300 215°C, 10–30 s 250 225 C peak 200 150 Time above 183°C, 60–150 sec 100 50 Ramp up = 3C/sec • Peak reflow temperature: 225°C (package surface temperature) • Time of temperature higher than 183°C for 60–150 seconds • One time soldering reflow is recommended 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Time (Minute) © 2005 Fairchild Semiconductor Corporation Page 13 of 14 6/15/05 GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS TIL111 TIL111-M TIL117-M MOC8100-M DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. © 2005 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Page 14 of 14 6/15/05