CIRCUIT PROTECTION PRODUCTS February, 2006 Bourns Manufacturers Representatives Corporate Distributor Product Managers Americas Sales Team Asia Sales Team Europe Sales Team TO-220 Packaged Transistor, Thyristor & Overvoltage Protection Product Change Notification PCN Tracking Number BLBF39 - Mold Compound Change This change notification covers a change to the epoxy mold compound used for encapsulation of TO-220 products assembled by PSI Technologies Inc, Manila, Philippines. The change is: From: MP150SG, manufactured by Nitto To: KTMC-1030NAP, manufactured by KCC Corporation Co., Korea Products Affected by the Change: All products assembled in TO-220 package are affected. These include catalog power transistors, thyristors, overvoltage protectors and customer specific products. Reason for the Change: Rationalization of mold compounds in the assemblyt/test site. Product Labeling: No change to the product labeling. Identification of the Changed Product: Bourns maintains traceability back to source wafer lots for all products. Implementation Date: Shipments of finished goods including the new mold compound are expected to commence in March 2006. Commencing Date Code: 612 Impact on Form, Fit, Function and Reliability: There is no impact. KTMC-1030NAP is recognized by UL and listed in E106817. The flammability rating is V-O. TO-220 Packaged Transistor, Thyristor & Overvoltage Protection Product Change Notification PCN Tracking Number BLBF39 - Mold Compound Change February, 2006 Page 2 of 5 Qualification Plan: Following page. Last Date of Manufacture of Unchanged Product: March 2006 Qualification Information as Follows: Die Technology Die Name Top Metal Back Metal Assembly Site Pins/Package Mold Compound Die Attach Wire Bond L/F Material Marking Termination Finish Bipolar Transistor/Thyristor As Qual Plan Table (Row 2) Al AlTiNiAu PSI,Technologies, Manila, Philippines 3/TO-220 KTMC-1030NAP Solder (>88% Pb) Aluminum Copper Laser Hot Dipped SnAgCu Qualification Tests: Stress Test/Conditions HTRB, 150 °C, 1000 h with bias 85 °C/85 % RH, 50 V, 1000 h Temperature Cycle -65/+150 °C, 200cs Solder Heat Lead Pull QSS (1) 009-101 009-102 009-104 009-106 009-110 Standard MIL STD 883 JEDEC STD 22 MIL STD 883 MIL STD 750 MIL STD 883 Notes: 1. QSS Specifications are Bourns Internal Qualification Standards. Method 1015 A101 1010 2031 2004 SS/Accept 129/1 129/1 129/1 22/0 22/0 TO-220 Packaged Transistor, Thyristor & Overvoltage Protection Product Change Notification PCN Tracking Number BLBF39 - Mold Compound Change February, 2006 Page 3 of 5 Qualification Plan: Lot Number: Product Name: Product Technology: Die Name: HTRB 85 °C/85 % RH Temperature Cycle Solder Heat Lead Pull Stress Test Completion Date: June 2006 Lot 1 TIP135-S Transistor SD135HQ 65/0 65/0 65/0 12/0 12/0 Lot 2 TIPL760A-S Transistor PL741HY 65/0 65/0 65/0 12/0 12/0 Lot 3 TIC225M-S Thyristor YS307HQ 65/0 65/0 65/0 12/0 12/0 TO-220 Packaged Transistor, Thyristor & Overvoltage Protection Product Change Notification PCN Tracking Number BLBF39 - Mold Compound Change February, 2006 Page 4 of 5 TO-220 Parts Sold ATOM-A ATOM-A-S BD239 BD239A BDX34C-S BD239A-S BD239B BD239B-S BD239C BD239C-S BD239-S BD240 BD240A BD240A-S BD240B BD240B-S BD240C BD240C-S BD240-S BD241 BD241A BD241A-S BD241B BD241B-S BD241C BD241C-S BD241D BD241D-S BD241-S BD242 BD242A BD242A-S BD242B BD242B-S BD242C BD242C-S BD242-S BD243 BD243B BD243B-S BD243C BD243C-S BD243-S BD244 BD244A BD244A-S BD244B BD244B-S BD244C BD244C-S BD244-S BD539B BD539B-S BD539C BD539C-S BD540C BD540C-S BD543 BD543A BD543A-S BD543B BD543B-S BD543C BD543C-S BD543-S BD544 BD544A BD544A-S BD544B BD544B-S BD544C BD544C-S BD544-S BD545 BD545-S BD645 BD645-S BD646 BD646-S BD647 BD647-S BD648 BD648-S BD649 BD649-S BD650 BD650-S BD651 BD651-S BD652 BD652-S BD653 BD653-S BD654 BD654-S BD655 BD655-S BD656 BD656-S BD657 BD657-S BD658 BD658-S BD659 BD659-S BD660 BD660-S BD743A BD743A-S BD743B BD743B-S BD743C BD743C-S BD744A BD744A-S BD744B BD744C BD744C-S BD897A BD897A-S BD898 BD898-S BD899 BD899A BD899A-S BD899-S BD900 BD900-S BD901 BD901-S BD902 BD902-S BD903 BD903-S BD904 BD904-S BDW23B BDW23B-S BDW24C BDW24C-S BDW53C BDW53C-S BDW53D BDW53D-S BDW54B BDW54B-S BDW64D BDW64D-S BDW73C BDW73C-S BDW73D BDW73D-S BDW74 BDW74C BDW74C-S BDW74D BDW74D-S BDW74-S BDW75 BDW75-S BDW93 BDW93A BDW93B BDW93B-S BDW93C BDW93C-S BDW93-S BDW94 BDW94B BDW94B-S BDW94C BDW94C-S BDW94-S BDX33 BDX33A BDX33A-S BDX33B BDX33B-S BDX33D BDX33D-S BDX33-S BDX34 BDX34A BDX34A-S BDX34BS BDX34BS-S BDX34D BDX34D-S BDX34-S BDX35 BDX35-S BDX53 BDX53A BDX53A-S BDX53B BDX53B-S BDX53C BDX53C-S BDX53-S BDX54 BDX54A BDX54A-S BDX54B BDX54B-S BDX54C BDX54C-S BDX54-S BDX55 BDX55-S BF64 BF64-S BF65 BF65-S BF66 BF66-S BF67 BF67-S BU406 BU406-S BU446 BU446-S BUT11 BUT11-S BUT12 BUT12-S BUX84 BUX84-S BUX85 BUX85-S IDM1J IDM1J-S R3224T R3224T-S R3439 R3439-S R3524S R3524S-S R3555 R3555-S R3671 R3671-S R3672 R3672-S R3673 R3673-S R3674 R3674-S R3675 R3675-S R3676 R3676-S R3677 R3677-S R3678 R3678-S R3679 R3679-S R3680 R3680-S TIC106D TIC106D-S TIC106M TIC106M-S TIC106N TIC106N-S TIC108D TIC108D-S TIC108M TIC108M-S TIC116D TIC116D-S TIC116M TIC116M-S TIC116N TIC116N-S TIC126D TIC126D-S TIC126M TIC126M-S TIC126N TIC126N-S TIC201D TIC201D-S TIC201M TIC201M-S TIC206D TIC206D-S TIC206M TIC206M-S TIC206S TIC206S-S TIC216D TIC216D-S TIC216M TIC216M-S TIC216S TIC216S-S TIC225D TIC225D-S TIC225M TIC225M-S TIC225N TIC225N-S TIC226D TIC226D-S TIC226M TIC226M-S TIC226N TIC226N-S TIC236D TIC236D-S TIC236M TIC236M-S TIC236N TIC236N-S TIC246D TIC246D-S TIC246M TIC246M-S TIC246N TIC246N-S TIP100 TIP100-S TIP110 TIP110-S TIP111 TIP111-S TIP112 TIP112-S TIP115 TIP115-S TIP117 TIP117-S TIP120 TIP120-S TIP121 TIP121-S TIP122 TIP122-S TIP125 TIP125-S TIP126 TIP126-S TIP127 TIP127-S TIP130 TIP130-S TIP131 TIP131-S TIP132 TIP132-S TIP135 TIP135-S TIP136 TIP136-S TIP137 TIP137-S TIP150 TIP150-S TIP151 TIP151-S TIP152 TIP152-S TIP29A TIP29A-S TIP29C TIP29C-S TIP30 TIP30A TIP30A-S TIP30B TIP30B-S TIP30C TIP30C-S TIP30-S TIP31 TIP31A TIP31A-S TIP31C TIP31C-S TIP31F TIP31F-S TIP32A TIP32A-S TIP32C TIP32C-S TIP41 TO-220 Packaged Transistor, Thyristor & Overvoltage Protection Product Change Notification PCN Tracking Number BLBF39 - Mold Compound Change February, 2006 Page 5 of 5 TO-220 Parts Sold (Continued) TIP41A TIP41A-S TIP41B TIP41B-S TIP41C TIP41C-S TIP41-S TIP42 TIP42A TIP42A-S TIP42C TIP42C-S TIP42-S TIP43 TIP43-S TIP47 TIP47-S TIP48 TIP48-S TIP49 TIP49-S TIP50 TIP50-S TIP51 TIP51-S TIP52 TIP52-S TIP53 TIP53-S TIP54 TIP54-S TIP6080 TIP6080-S TIPL760 TIPL760A TIPL760A-S TIPL760B TIPL760B-S TIPL760C TIPL760C-S TIPL760-S TIPL770 TIPL770-S TIPL790 TIPL790A TIPL790A-S TIPL790-S TIPL791A TIPL791A-S TIPL810 TIPL810-S TIPL830 TIPL830-S TIPP31A TISP1082 TISP1082-S TISP1083 TISP1083-S TISP2082 TISP2082-S TISP2180 TISP2180-S TISP2290 TISP2290-S TISP3082 TISP3082-S TISP3180 TISP3180-S TISP3290 TISP3290-S TISP4082 TISP4082-S TISP4180 TISP4180-S TISP4290 TISP4290-S Y1031 Y1031-S Y1112 Y1112-S Y1133 Y1133-3827 Y11333827-S Y1133-S Y1171 Y1171-S