1421

1421 Vishay Foil Resistors Bulk Metal® Foil Technology 12 Pin Transistor Outline Hermetic Resistor Network The 12 pin TO-8 package is suitable for ladder networks up to ten bits and other more complicated networks. It is also a good choice when power dissipation is a consideration. This network can contain up to 49, V5X5 resistor chips. Review data sheet “7 Technical Reasons to Specify Bulk Metal® Foil Resistor Networks.” Product may not be to scale ORDERING INFORMATION - 1421 PARTS Networks are built to your requirements. Send your schematic and electrical requirements to the Applications Engineering Department. (See data sheet “Network Worksheet.”) A unique part number will be assigned which defines all aspects of your network. THROUGH HOLE FIGURE 1 - STANDARD DIMENSIONS in inches (millimeters) 0.540 –0.560 (13.71 –14.22) 0.150 MAXIMUM (3.81) 12 LEADS 0.016 –0.019 (0.41 –0.48) 0.500 MINIMUM (12.7) 0.590 –0.610 (14.99 –15.49) DIAMETER VISHAY MODEL NUMBER 1421 CHIP CAPACITY V5X5 - 49 chips MAXIMUM POWER RATING (WATTS) @ +70°C 0.6 Watt NOTES: VIEWED FROM BOTTOM 0.200 TYPICAL (5.08) 0.400 TYPICAL (10.16) 6 5 4 3 2 7 8 8 10 11 12 1 1. These networks utilize Vishay Bulk Metal® Foil resistor chips V5X5 and V15X5 or VTF15X10 Thin Film chips. 2. The V5X5 and V15X5 chips have maximum resistance values of 10K and 33K respectively in Bulk Metal® Foil and 500K in VTF15X5 Thin Film chips. 0.026 –0.036 (0.66 –0.91) 0.100 TYPICAL (2.54) 0.200 TYPICAL (5.08) 0.026 –0.036 (0.66 –0.91) FIGURE 2 - SAMPLE CIRCUIT DESIGN AND CHIP LAYOUT 6 5 4 R4 7 R5 R3 R2 3 NOTE: Usable area is represented by dotted lines— a square 0.350 Inches x 0.350 Inches. Illustrations not to scale. Chips shown undersize for clarity. Drawing view is from the top looking down into the package. FOUR DIVIDERS 1 2 3 4 6 7 9 10 12 8 9 R6 R7 R8 R1 1 2 5 8 11 10 11 12 SALES • ISRAEL: foilsales.israel@vishay.com • FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com • AMERICAS: foilsales.usa@vishay.com • ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com www.vishay.com 124 For technical questions in the Americas, contact foilsupport1@vishay.com Document Number: 63042 For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com Revision 08-Mar-05 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1