UL94 Rating

Independent laboratories perform UL testing across the U.S. UL = Underwriters Laboratory, 94 = test method, V = vertical, - number = rating. San Francisco Bay area UL office number: (408) 985-2400

The higher the number rating the more likely the substance is to burn. UL94V-0 is least likely to burn.

Our mold compounds and BT Substrates (modules) are UL94V-0 rated for the following packages:

SOT23 (S3, S5, S6, TS8) SOT223 (ST) TO-92 (Z)
SC70 (SC6) TO-220 (T, T7) DDPAK (M,Q,R)
PDIP (N, NW) MSOP (MS8/E, MS/E) SOIC (S8, S, SW)
SSOP (GN, G, GW) TSSOP (F, FW, FE) QFN/DFN (UXX/DXX)
LTM Modules (V, Y)    

Check with Package Engineering for other package types.

Oxygen Index

Standard testing methods have been developed in America and Japan. Test methods are equivalent.

Methods: American National Standard, ANSI / ASTM D2863 -77

Japanese Industrial Standard, JIS K7201

Definition from ASTM: oxygen index - the minimum concentration of oxygen, expressed as volume percent, in a mixture of oxygen and nitrogen that will just support flaming combustion of a material initially at room temperature under the conditions of this method.

Our mold compounds are rated to pass oxygen index of 28% minimum.

Check with Package Engineering if any questions.

Package Engineering /20-June-2003