CORNELL DUBILIER AVS477M16F24B

Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C General Purpose Filtering, Bypassing, Power Supply Decoupling Type AVS Capacitors are the best value for filter and bypass applications not requiring wide temperature performance or high ripple current. Their vertical cylindrical cases facilitate automatic mounting and reflow soldering and Type AVS offers a significant cost savings over tantalum capacitors. Highlights • +85°C, 2000 Hour Load Life • Capacitance Range: 0.1 µF to 1500 µF • Voltage Range: 4.0 Vdc to 100 Vdc • AEC-Q200 Compliant Specifications Operating Temperature: -40°C to +85°C Rated voltage: 4.0, 6.3, 10, 16, 25, 35, 63, & 100 Vdc Capacitance: 0.1 µF to 1500 µF See Ratings Table D.F. (@ 20°C): ±20% @ 120 Hz and +20°C Capacitance Tolerance: 0.01 CV or 3 µA @ +20°C, after two minutes (whichever is greater) Leakage Current: Frequency Ripple Current Multipliers: 50/60 Hz 120 Hz 1 kHz 10 kHz & up 0.7 1.0 1.3 1.7 Load Life: 2000 h @ 85°C Shelf Life: 1000 h @ 85°C ∆ Capacitance: ±20% ∆ Capacitance: ±20% DF: <200% of limit DF: <200% of limit RoHS Compliant DCL: <100% of limit DCL: <100% of limit Maximum Impedance Ratio @ 120 Hz W.V. (Vdc) 4.0 6.3 10.0 16.0 25.0 35.0 50.0 63.0 100.0 -25°C / +20°C 7.0 4.0 3.0 2.0 2.0 2.0 2.0 3.0 3.0 -40°C / +20°C 15.0 8.0 6.0 4.0 4.0 3.0 3.0 4.0 4.0 AVS Series Marking Outline Drawing K Capacitance 0.3 mm A (µF) Series I 220 D P vs H Voltage I 6 = 6.3 Vdc 16 = 16 Vdc 25 = 25 Vdc, W L Lot No. Case Dimensions Case Code D ± 0.5 L A ± 0.2 H (max) I (ref) W P (ref) K A 3 5.4 +.1,-.2 3.3 4.5 1.5 0.55 ± 0.1 0.6 0.35 + 0.15/-0.20 B 4 5.4 +.1,-.2 4.3 5.5 1.8 0.65 ± 0.1 1.0 0.35 + 0.15/-0.20 C 5 5.4 +.1,-.2 5.3 6.5 2.2 0.65 ± 0.1 1.5 0.35 + 0.15/-0.20 D 6.3 5.4 +.1,-.2 6.6 7.8 2.6 0.65 ± 0.1 1.8 0.35 + 0.15/-0.20 X 6.3 7.9 ±.3 6.6 7.8 2.6 0.65 ± 0.1 1.8 0.35 + 0.15/-0.20 E 8 6.2 ±.3 8.3 9.5 3.4 0.65 ± 0.1 2.2 0.35 + 0.15/-0.20 F 8 10.2 ±.3 8.3 10.0 3.4 0.90 ± 0.2 3.1 0.70 ± 0.20 G 10 10.2 ±.3 10.3 12.0 3.5 0.90 ± 0.2 4.6 0.70 ± 0.20 CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C Max. Max. Max. Max . Dissipation ESR @ Ripple Current Size Cap CaT-Falog DCL Factor @ 120 Hz/20 °C 120 Hz/85 °C Case D x L Quantity (µF) ParT-F Number (µA) 120 Hz (Ohms) (mA) Code (mm) per Reel 4 Vdc (5 Vdc Surge) 22 AVS226M04A12T-F* 3.0 0.37 27.9 19 A 3 x 5.4 2000 33 AVS336M04B12T-F 3.0 0.35 17.6 26 B 4 x 5.4 2000 47 AVS476M04B12T-F 3.0 0.35 12.3 34 B 4 x 5.4 2000 100 AVS107M04C12T-F 4.0 0.35 5.8 61 C 5 x 5.4 1000 220 AVS227M04D16T-F 8.8 0.35 2.6 82 D 6.3 x 5.4 1000 6.3 Vdc (8 Vdc Surge) 22 AVS226M06A12T-F* 3.0 0.35 26.4 20 A 3 x 5.4 2000 22 AVS226M06B12T-F 3.0 0.26 19.6 29 B 4 x 5.4 2000 33 AVS336M06B12T-F 3.0 0.35 17.6 29 B 4 x 5.4 2000 47 AVS476M06B12T-F 3.0 0.35 12.3 36 B 4 x 5.4 2000 47 AVS476M06C12T-F 3.0 0.26 9.2 46 C 5 x 5.4 1000 100 AVS107M06C12T-F 6.3 0.35 5.8 47 C 5 x 5.4 1000 100 AVS107M06D16T-F 6.3 0.26 4.3 71 D 6.3 x 5.4 1000 220 AVS227M06D16T-F 13.9 0.35 2.6 74 D 6.3 x 5.4 1000 330 AVS337M06X16T-F 20.8 0.26 1.3 150 X 6.3 x 7.9 900 330 AVS337M06E16T-F 20.8 0.35 1.8 300 E 8 x 6.2 1000 470 AVS477M06F24T-F 29.6 0.35 1.2 380 F 8 x 10.2 500 1000 AVS108M06F24T-F 63.0 0.35 0.6 500 F 8 x 10.2 500 1000 AVS108M06G24T-F 63.0 0.35 0.6 700 G 10 x 10.2 500 1500 AVS158M06G24T-F 94.5 0.35 0.4 700 G 10 x 10.2 500 10 Vdc (13 Vdc Surge) 22 AVS226M10B12T-F 3.0 0.3 22.6 28 B 4 x 5.4 2000 33 AVS336M10B12T-F 3.3 0.3 15.1 29 B 4 x 5.4 2000 33 AVS336M10C12T-F 3.3 0.2 10.1 43 C 5 x 5.4 1000 47 AVS476M10C12T-F 4.7 0.3 10.6 43 C 5 x 5.4 1000 100 AVS107M10C12T-F 10.0 0.3 5.0 50 C 5 x 5.4 1000 100 AVS107M10D16T-F 10.0 0.2 3.3 70 D 6.3 x 5.4 1000 220 AVS227M10X16T-F 22.0 0.2 1.5 150 X 6.3 x 7.9 900 220 AVS227M10E16T-F 22.0 0.26 2.0 250 E 8 x 6.2 1000 330 AVS337M10F24T-F 33.0 0.26 1.3 330 F 8 x 10.2 500 470 AVS477M10F24T-F 47.0 0.26 0.9 330 F 8 x 10.2 500 470 AVS477M10G24T-F 47.0 0.26 0.9 400 G 10 x 10.2 500 1000 AVS108M10G24T-F 100.0 0.26 0.4 580 G 10 x 10.2 500 16 Vdc (20 Vdc Surge) 10 AVS106M16A12T-F* 3.0 0.18 29.9 20 A 3 x 5.4 2000 10 AVS106M16B12T-F 3.0 0.16 26.5 28 B 4 x 5.4 2000 22 AVS226M16B12T-F 3.5 0.26 19.6 28 B 4 x 5.4 2000 22 AVS226M16C12T-F 3.5 0.16 12.1 39 C 5 x 5.4 1000 33 AVS336M16C12T-F 5.3 0.26 13.1 35 C 5 x 5.4 1000 47 AVS476M16C12T-F 7.5 0.26 9.2 39 C 5 x 5.4 1000 47 AVS476M16D16T-F 7.5 0.16 5.6 70 D 6.3 x 5.4 1000 100 AVS107M16D16T-F 16.0 0.26 4.3 70 D 6.3 x 5.4 1000 100 AVS107M16E16T-F 16.0 0.2 3.3 200 E 8 x 6.2 1000 220 AVS227M16X16T-F 35.2 0.16 1.2 150 X 6.3 x 7.9 900 220 AVS227M16E16T-F 35.2 0.2 1.5 200 E 8 x 6.2 1000 220 AVS227M16F24T-F 35.2 0.2 1.5 280 F 8 x 10.2 500 330 AVS337M16F24T-F 52.8 0.2 1.0 320 F 8 x 10.2 500 330 AVS337M16G24T-F 52.8 0.2 1.0 380 G 10 x 10.2 500 470 AVS477M16F24T-F 75.2 0.2 0.7 320 F 8 x 10.2 500 470 AVS477M16G24T-F 75.2 0.2 0.7 420 G 10 x 10.2 500 25 Vdc (31 Vdc Surge) 4.7 AVS475M25A12T-F* 3.0 0.16 56.5 12 A 3 x 5.4 2000 4.7 AVS475M25B12T-F 3.0 0.14 49.4 22 B 4 x 5.4 2000 10 AVS106M25B12T-F 3.0 0.2 33.2 22 B 4 x 5.4 2000 10 AVS106M25C12T-F 3.0 0.14 23.2 28 C 5 x 5.4 1000 22 AVS226M25C12T-F 5.5 0.2 15.1 35 C 5 x 5.4 1000 22 AVS226M25D16T-F 5.5 0.14 10.6 55 D 6.3 x 5.4 1000 33 AVS336M25C12T-F 8.3 0.2 10.0 42 C 5 x 5.4 1000 33 AVS336M25D16T-F 8.3 0.14 7.0 65 D 6.3 x 5.4 1000 47 AVS476M25D16T-F 11.8 0.2 7.1 70 D 6.3 x 5.4 1000 100 AVS107M25X16T-F 25.0 0.14 2.3 150 X 6.3 x 7.9 900 100 AVS107M25E16T-F 25.0 0.16 2.7 91 E 8 x 6.2 1000 100 AVS107M25F24T-F 25.0 0.16 2.7 180 F 8 x 10.2 500 220 AVS227M25F24T-F 55.0 0.16 1.2 140 F 8 x 10.2 500 220 AVS227M25G24T-F 55.0 0.16 1.2 310 G 10 x 10.2 500 330 AVS337M25F24T-F 82.5 0.16 0.8 150 F 8 x 10.2 500 330 AVS337M25G24T-F 82.5 0.16 0.8 340 G 10 x 10.2 500 470 AVS477M25G24T-F 117.5 0.16 0.6 360 G 10 x 10.2 500 *Denotes discontinued part CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C Max. Dissipation ESR @ Ripple Current Size Cap CaT-Falog DCL Factor @ 120 Hz/20 °C 120 Hz/85 °C Case D x L Quantity (µF) ParT-F Number (µA) 120 Hz (Ohms) (mA) Code (mm) per Reel 35 Vdc (44 Vdc Surge) 2.2 AVS225M35A12T-F* 3.0 0.14 105.6 8 A 3 x 5.4 2000 3.3 AVS335M35A12T-F* 3.0 0.14 70.4 10 A 3 x 5.4 2000 4.7 AVS475M35B12T-F 3.0 0.12 42.4 22 B 4 x 5.4 2000 10 AVS106M35B12T-F 3.5 0.16 26.5 22 B 4 x 5.4 2000 10 AVS106M35C12T-F 3.5 0.12 19.9 30 C 5 x 5.4 1000 22 AVS226M35C12T-F 7.7 0.16 12.1 36 C 5 x 5.4 1000 22 AVS226M35D16T-F 7.7 0.12 9.1 60 D 6.3 x 5.4 1000 33 AVS336M35D16T-F 11.6 0.16 8.0 60 D 6.3 x 5.4 1000 33 AVS336M35E16T-F 11.6 0.14 7.0 130 E 8 x 6.2 1000 47 AVS476M35D16T-F 16.5 0.16 5.6 70 D 6.3 x 5.4 1000 47 AVS476M35E16T-F 16.5 0.14 4.9 165 E 8 x 6.2 1000 100 AVS107M35X16T-F 35.0 0.12 2.0 130 X 6.3 x 7.9 900 100 AVS107M35F24T-F 35.0 0.14 2.3 140 F 8 x 10.2 500 100 AVS107M35G24T-F 35.0 0.14 2.3 210 G 10 x 10.2 500 220 AVS227M35F24T-F 77.0 0.14 1.1 200 F 8 x 10.2 500 220 AVS227M35G24T-F 77.0 0.14 1.1 310 G 10 x 10.2 500 330 AVS337M35G24T-F 115.5 0.14 0.7 320 G 10 x 10.2 500 50 Vdc (63 Vdc Surge) 0.1 AVS104M50A12T-F* 3.0 0.14 2322.0 1 A 3 x 5.4 2000 0.1 AVS104M50B12T-F* 3.0 0.12 1990.0 1 B 4 x 5.4 2000 0.22 AVS224M50A12T-F* 3.0 0.14 1055.0 2 A 3 x 5.4 2000 0.22 AVS224M50B12T-F 3.0 0.12 905.0 2 B 4 x 5.4 2000 0.33 AVS334M50A12T-F* 3.0 0.14 704.0 3 A 3 x 5.4 2000 0.33 AVS334M50B12T-F 3.0 0.12 603.0 3 B 4 x 5.4 2000 0.47 AVS474M50A12T-F* 3.0 0.14 494.0 5 A 3 x 5.4 2000 0.47 AVS474M50B12T-F* 3.0 0.12 424.0 5 B 4 x 5.4 2000 1 AVS105M50A12T-F* 3.0 0.14 232.0 8 A 3 x 5.4 2000 1 AVS105M50B12T-F 3.0 0.12 199.0 10 B 4 x 5.4 2000 2.2 AVS225M50A12T-F* 3.0 0.14 106.0 10 A 3 x 5.4 2000 2.2 AVS225M50B12T-F 3.0 0.12 90.5 16 B 4 x 5.4 2000 3.3 AVS335M50B12T-F 3.0 0.12 60.3 16 B 4 x 5.4 2000 4.7 AVS475M50B12T-F 3.0 0.14 49.4 18 B 4 x 5.4 2000 4.7 AVS475M50C12T-F 3.0 0.12 42.4 23 C 5 x 5.4 1000 10 AVS106M50C12T-F 5.0 0.14 23.2 27 C 5 x 5.4 1000 10 AVS106M50D16T-F 5.0 0.12 19.9 35 D 6.3 x 5.4 1000 22 AVS226M50D16T-F 11.0 0.14 10.6 60 D 6.3 x 5.4 1000 22 AVS226M50E16T-F 11.0 0.12 9.1 120 E 8 x 6.2 1000 33 AVS336M50X16T-F 16.5 0.12 6.0 85 X 6.3 x 7.9 900 33 AVS336M50E16T-F 16.5 0.12 6.0 130 E 8 x 6.2 1000 33 AVS336M50F24T-F 16.5 0.12 6.0 140 F 8 x 10.2 500 47 AVS476M50X16T-F 23.5 0.12 4.2 90 X 6.3 x 7.9 900 47 AVS476M50F24T-F 23.5 0.12 4.2 150 F 8 x 10.2 500 47 AVS476M50G24T-F 23.5 0.12 4.2 160 G 10 x 10.2 500 100 AVS107M50F24T-F 50.0 0.12 2.0 200 F 8 x 10.2 500 100 AVS107M50G24T-F 50.0 0.12 2.0 250 G 10 x 10.2 500 220 AVS227M50G24T-F 110.0 0.12 0.9 300 G 10 x 10.2 500 63 Vdc (75 Vdc Surge) 10 AVS106M63D16T-F 6.3 0.18 29.9 35 D* 6.3 x 5.7 1000 22 AVS226M63E16T-F 13.9 0.18 13.6 40 E 8 x 6.2 1000 22 AVS226M63F24T-F 13.9 0.18 13.6 40 F 8 x 10.2 500 33 AVS336M63F24T-F 20.8 0.18 9.1 45 F 8 x 10.2 500 47 AVS476M63F24T-F 29.6 0.18 6.4 45 F 8 x 10.2 500 100 AVS107M63G24T-F 63.0 0.18 3.0 60 G 10 x 10.2 500 100 Vdc (125 Vdc Surge) 3.3 AVS335M2AE16T-F 3.3 0.18 90.4 50 E 8 x 6.2 1000 4.7 AVS475M2AE16T-F* 4.7 0.18 63.5 50 E 8 x 6.2 1000 4.7 AVS475M2AF24T-F* 4.7 0.18 63.5 80 F 8 x 10.2 500 10 AVS106M2AE16T-F 10.0 0.18 29.8 50 E 8 x 6.2 1000 10 AVS106M2AF24T-F 10.0 0.18 29.8 85 F 8 x 10.2 500 22 AVS226M2AF24T-F 22.0 0.18 13.6 70 F 8 x 10.2 500 22 AVS226M2AG24T-F 22.0 0.18 13.6 90 G 10 x 10.2 500 33 AVS336M2AG24T-F 33.0 0.18 8.0 90 G 10 x 10.2 500 *Denotes discontinued part *Overall case height (L dimension) is 5.7 mm ±0.3 mm Part Numbering System AVS 106 M 16 B 12T –F I I I I I I Type Capacitance Capacitance Voltage Case Packaging RoHS 104 = 0.1 µF Tolerance Code Information Compliant 04 = 4 Vdc 35 = 35 Vdc 105 = 1.0 µF M = ±20% 12 = Carrier Tape 06 = 6.3 Vdc 50 = 50 Vdc 106 = 10 µF Width (mm) 10 = 10 Vdc 63 = 63 Vdc 107 = 100 µF T = Tape & Reel 16 = 16 Vdc 2A = 100 Vdc 108 = 1000 µF B = Bulk 25 = 25 Vdc CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C Typical Performance Curves Capacitance vs. Temperature & Frequency Capacitance vs. Temperature & Frequency 100 µF @ 16 Vdc (10 X 10.2 mm) 1500 µF @ 6.3 Vdc (10 X 10.2 mm) 1.4 1.4 1.2 1.2 85°C 1 1 65°C 65°C 45°C 0.8 0.8 85°C 25°C 0.6 0.6 0°C 45° 0.4 0.4 25°C –20°C 0°C 0.2 0.2 –20°C –40°C –40°C 0 0 10 100 1,000 10,000 100,000 1,000,000 10 100 1,000 10,000 100,000 1,000,000 Frequency (Hz) Frequency (Hz) ESR vs. Temperature and Frequency ESR vs. Temperature and Frequency 100 µF @ 16 Vdc (10 X 10.2 mm) 1500 µF @ 6.3 Vdc (10 X 10.2 mm) 100 100 –40°C –40°C 10 10 –20°C –20°C 0°C 0°C 1 1 25°C 25°C 45°C 45°C 65°C 65°C 85°C 85°C 0.1 0.1 10 100 1,000 10,000 100,000 1,000,000 10 100 1,000 10,000 100,000 1,000,000 Frequency (Hz) Frequency (Hz) Impedance vs. Temperature and Frequency Impedance vs. Temperature and Frequency 100 µF @ 16 Vdc (10 X 10.2 mm) 1500 µF @ 6.3 Vdc (10 X 10.2 mm) 100 10 –40°C 10 –40°C 1 –20°C –20°C 0°C 1 0°C 25°C 25°C 45°C 0.1 45°C 65°C 0.1 65°C 85°C 85°C 0.01 0.01 10 100 1,000 10,000 100,000 1,000,000 10 100 1,000 10,000 100,000 1,000,000 Frequency (Hz) Frequency (Hz) CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C Capacitance vs. Temperature & Frequency Capacitance Change with Temperature 220 µF @ 50 Vdc (10 X 10.2 mm) (Typical Performance for AVS Series @ 120 Hz) 10 1.2 5 1 45° C 65°C 0 0.8 85°C -5 0.6 -10 25°C 0°C -15 0.4 –20°C 100 µF @ 6.3 Vdc (6.3 X 5.4 mm) -20 –40°C 47µF @ 16Vdc (6.3 X 5.4 mm) 0.2 -25 10µF @ 50Vdc (6.3 X 5.4 mm) 0 -30 10 100 1,000 10,000 100,000 1,000,000 -60 -40 -20 0 20 40 60 80 100 Frequency (Hz) Temperature (°C) ESR vs. Temperature and Frequency Dissipation Factor vs. Temperature 220 µF @ 50 Vdc (10 X 10.2 mm) (Typical Performance for AVS Series @ 120 Hz) 2 100 1.8 1.6 100 µF @ 6.3 Vdc (6.3 X 5.4 mm) 1.4 10 47 µF @ 16 Vdc (6.3 X 5.4 mm) –40°C 1.2 10 µF @ 50 Vdc (6.3 X 5.4 mm ) 1 –20°C 0.8 0°C 1 0.6 25°C 45°C 0.4 65°C 0.2 85°C 0 0.1 10 100 1,000 10,000 100,000 1,000,000 -60 -40 -20 0 20 40 60 80 100 Frequency (Hz) Temperature (°C) Impedance vs. Temperature and Frequency Capacitance Change vs. Time 220 µF @ 50 Vdc (10 X 10.2 mm) (Typical Performance for AVS Series) 10 100 5 10 0 -5 1 –40°C -10 –20°C 10 µF @ 16 Vdc (4 x 5.4 mm) 0.1 47 µF @ 16 Vdc ( 6.3 x 5.4 mm) 0°C -15 330 µF @ 16 Vdc (10 x 10.2 mm) 25°C 85°C 45°C 65°C -20 0.01 10 100 1,000 10,000 100,000 1,000,000 0 500 1,000 1,500 2,000 Frequency (Hz) Time (Hours) CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Ratio to 25°C, 120 Hz Value Capacitance Change (%) Capacitance Change (%) D.F. (@ 120 Hz) Type AVS SMT Aluminum Electrolytic Capacitors - General Purpose, 85°C Notice and Disclaimer: All product drawings, descriptions, specifications, statements, information and data (collectively, the “Information”) in this datasheet or other publication are subject to change. The customer is responsible for checking, confirming and verifying the extent to which the Information contained in this datasheet or other publication is applicable to an order at the time the order is placed. All Information given herein is believed to be accurate and reliable, but it is presented without any guarantee, warranty, representation or responsibility of any kind, expressed or implied. Statements of suitability for certain applications are based on the knowledge that the Cornell Dubilier company providing such statements (“Cornell Dubilier”) has of operating conditions that such Cornell Dubilier company regards as typical for such applications, but are not intended to constitute any guarantee, warranty or representation regarding any such matter – and Cornell Dubilier specifically and expressly disclaims any guarantee, warranty or representation concerning the suitability for a specific customer application, use, storage, transportation, or operating environment. The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any technical advice inferred from this Information or otherwise provided by Cornell Dubilier with reference to the use of any Cornell Dubilier products is given gratis (unless otherwise specified by Cornell Dubilier), and Cornell Dubilier assumes no obligation or liability for the advice given or results obtained. Although Cornell Dubilier strives to apply the most stringent quality and safety standards regarding the design and manufacturing of its products, in light of the current state of the art, isolated component failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies or other appropriate protective measures) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage. Although all product-related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated in such warnings, cautions and notes, or that other safety measures may not be required. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508) 996-8561 • Fax: (508) 996-3830 • www.cde.com