UL Approval: E214381 VT-4B5 - cucciati.com

1 Page 1 of 3 Telephone: +86 512 6809 1810 Fax: +86 512 6808 1823 E-mail: Ventec Electronics (Suzhou) Co., Ltd 168 Xiang Yang Rd., Suzhou New District Jiangsu, China 215009 Ventec Professional Manufacturer in Copper Clad Laminates Page 1 of 3 Issued: Dec-2012 General Information Ventec offers a new IMS material without galss reinforced which has below features VT-4B5 Laminate / VT-4B5 RCC (Resin Coated Copper)/ VT-4B5 RCF (Resin Coated Film): Thermal conductivity , Ceramic Filled Halogen Free Flame Retardant (UL94 V0) UL MOT 130 C Bending Application Suitable Application Ultra bright LED Substrate Power Conversion PDP, LED, Regulator for TV Monitor Drives Rectifier, Power supply Storage Condition & Shelf Life RCC Laminate Storage Condition Temperature Below 23 C(73 F) Below 5 C(41 F) Room Relative Humidity Below 55%RH / / Shelf Time* 2 Months 4 Months 12 Months(airproof) *The pre-preg exceeding shelf time should be retested.

2 Designation of Laminate VT-4B5 .003 5052 / 1 VT-4B5 UL Approval: E214381 Version : Preliminary 2 Copper Thickness Aluminum Thickness Aluminum style Dielectric Thickness Non-reinforcement, 5W/mK Aluminum Plate Dielectric Layer Copper Foil Page 2 of 3 Telephone: +86 512 6809 1810 Fax: +86 512 6808 1823 E-mail: Ventec Electronics (Suzhou) Co., Ltd 168 Xiang Yang Rd., Suzhou New District Jiangsu, China 215009 Ventec Professional Manufacturer in Copper Clad Laminates Page 2 of 3 Issued: Dec-2012 Properties Laminate Properties Test Method (IPC TM650) or as noted Unit VT-4B5 50um** 75um* 100um* Thermal Conductivity ISO 22007-2 W/m*K Thermal Impedance ISO 22007-2 C*in2/W Tg DSC C 120 Td TGA ASTM D3850 C 380 Thermal Stress 288 C solder dipping minute 5 Hi pot withstand DC Volts 2500 3000 3500 Dielectric Strength AC V/mil 1000 Dk (1 MHz) C-24 / 23 / 50 - Df (1 MHz) C-24 / 23 / 50 - Volume Resistance After Moisture M -cm 108 E-24/125 107 Surface Resistance After Moisture M 107 E-24/125 106 Peel Strength (1oz Cu) As received Lb/in 10 CTI As Received ASTM D3638 Volts 600 600 600 Flammability As received UL 94 - V0 All test data provided are typical values and not intended to be specification values.

3 * ---- Dielectric thicknes ** ---- Pilot stage VT-4B5 Page 3 of 3 Telephone: +86 512 6809 1810 Fax: +86 512 6808 1823 E-mail: Ventec Electronics (Suzhou) Co., Ltd 168 Xiang Yang Rd., Suzhou New District Jiangsu, China 215009 Ventec Professional Manufacturer in Copper Clad Laminates Page 3 of 3 Issued: Dec-2012 Availability Laminate Item Description Standard size English Metric English Metric 18 *24 457mm*610mm 21 *24 533mm*610mm 20 *24 508mm*610mm 22 *24 559mm*610mm Or customized Copper foil Standard: 1/3oz Hoz 1oz 2oz Pilot stage: 3oz 4oz 5oz 6oz Dielectric thickness Standard: .003 (75um) .004 (100um) Pilot stage: .002 (50um) Aluminum thickness Aluminum Alloy 1100 5052 Or customized RCC & RCF Item Description Standard Size English Metric Width: Length: 24 Width: 630mm Length: 610mm Copper foil Or Film Copper: 1/3oz Hoz 1oz 2oz Film(75um) Dielectric thickness Standard.

4 003 (75um) .004 (100um) Pilot stage: .002 (50um) Aluminum Protective Film Selection Guide PET film: Standard protective film, operation temperature up to 170 C. PI film: Special protective film, operation temperature up to 270 C. VT-4B5