oH VE S CO AV R M AI SIO PL LA N IA BL S NT E *R Features ■ ■ ■ ■ ■ Applications Lead free versions available RoHS compliant (lead free version)* Multiple SCSI termination resistors Stable thin-film-on-silicon technology Ultra-miniature packages to JEDEC standards ■ ■ ■ Single-ended SCSI termination SCSI host adaptor cards All SCSI bus devices Thin Film on Silicon 2QSP / 2NBS-XX3 Dual Terminator General Information Package Schematic 16 Dual Terminator networks are used to correctly terminate single-ended SCSI bus lines. The standard R1, R2 combination ensures that the high frequency component of a signal transition will see an impedance at the termination equal to the characteristic impedance of the line. Fabricated with Tantalum Nitride on Silicon, these resistors feature excellent stability, TCR and tracking performance. The JEDEC standard miniature packages offer the most space-efficient Dual Terminator resistor array available. 9 R1 R2 R2 R1 1 8 Electrical & Environmental Characteristics Electrical Characteristics Symbol Minimum Maximum Unit R 220 330 Ω ±1 % ±0.5 % ±5 % ±2 % Ω Ω 50 ppm/°C ppm/°C V +125 +150 0.1 V °C °C Watt 0.75 1.00 1.12 Watt Watt Watt 0.60 1.00 Watt Watt Resistance Range Tolerance: Absolute Ratio TCR: Absolute Tracking Operating Voltage Nominal 100 25 Environmental Characteristics ESD Operating Temperature Storage Temperature Power Rating per Resistor @ 70 °C Power Rating per Package @ 70 °C: QSOP: 16 Pin 20, 24 Pin 28 Pin NBSOIC: 8 Pin 14, 16 Pin *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TJ Tstg 2K -55 -65 Thin Film on Silicon 2QSP / 2NBS -XX3 Dual Terminator Mechanical Characteristics QSOP Package Dimensions Narrow-Body SOIC Package Dimensions A .635 TYP. (.025) A 1.27 TYP. (.050) 3.81 - 3.99 (.150 - .157) 3.81 - 3.99 (.150 - .157) .21 - .31 (.008 - .012) PIN 1 0.36 - 0.46 (.014 - .018) PIN 1 1.35 - 1.75 (.053 - .069) 1.35 - 1.75 (.053 - .069) .10 - .25 (.004 - .010) .10 - .25 (.004 - .010) .19 - .25 (.007 - .010) 0-8 ° .19 - .25 (.007 - .010) 0-8 ° .41 - 1.27 (.016 - .050) 5.80 - 6.20 (.228 - .244) Model 2QSP16 2QSP20 2QSP24 2QSP28 4.80 8.56 8.56 9.80 - 5.80 - 6.20 (.228 - .244) 4.98 8.74 8.74 9.98 A (.189 (.337 (.337 (.386 - .196) .344) .344) .393) Governing dimensions are in mm. Dimensions in parentheses are in inches and are approximate. Model 2NBS08 2NBS14 2NBS16 .41 - 1.27 (.016 - .050) A 4.80 - 4.98 (.189 - .196) 8.56 - 8.74 (.337 - .344) 9.80 - 9.98 (.386 - .393) Governing dimensions are in mm. Dimensions in parentheses are in inches and are approximate. JEDEC Reference Number MS-012. JEDEC Reference Number MO-137. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Thin Film on Silicon 2QSP / 2NBS -XX3 Dual Terminator QSOP Package Power Temperature Derating Curve 1.0 .75 1.0 2QSP28 2QSP20, 2QSP24 WATTS WATTS 1.25 Narrow-Body SOIC Package Power Temperature Derating Curve 2QSP16 .50 .6 2NBS08 .4 .2 .25 0 2NBS14, 2NBS16 .8 25 50 75 0 100 125 150 AMBIENT TEMPERATURE ( ° C ) 25 50 75 100 125 150 AMBIENT TEMPERATURE ( ° C ) Schematic R1 R2 R2 R1 8 PIN 14 PIN 16 PIN 20 PIN 24 PIN 28 PIN Typical Part Marking Standard Resistance Values Represents total content. Layout may vary. PIN COUNT MODEL QSP16J 3-221331 YYWW CIRCUIT PIN 1 INDICATOR (MOLDED INDENT) GRADE RESISTANCE CODE DATE CODE MANUFACTURER'S TRADEMARK Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. R1 R2 Resistance (ohms) Resistance Code 220 330 221 331 Thin Film on Silicon 2QSP / 2NBS -XX3 Dual Terminator Dispensing For large quantities, the product will be dispensed in Tape and Reel (see diagram below). A0 DIMENSIONS = MM (INCHES) B0 Package QSOP 16 Pin 20, 24 Pin 28 Pin NBSOIC 8 Pin 14 Pin 16 Pin K0 No. of Pieces No. of Pieces per 13 ” reel per tube A0 B0 K0 Width Pitch 6.4 (0.252) 6.5 (0.256) 6.5 (0.256) 5.2 (0.205) 9.0 (0.354) 10.3 (0.406) 2.1 (0.083) 2.1 (0.083) 2.1 (0.083) 12 (0.472) 16 (0.630) 16 (0.630) 8 (0.315) 8 (0.315) 8 (0.315) 3,500 3,500 3,500 98 56 49 6.4 (0.252) 6.5 (0.256) 6.5 (0.256) 9.0 (0.354) 9.0 (0.354) 9.0 (0.354) 2.1 (0.083) 2.1 (0.083) 2.1 (0.083) 12 (0.472) 16 (0.630) 16 (0.630) 8 (0.315) 8 (0.315) 8 (0.315) 3,500 3,500 3,500 98 56 49 How To Order 2 QSP 20 - T J 3 - 221331 __ Product Class Thin-Film-on-Silicon Standard Package Style QSP = QSOP NBS = Narrow-Body SOIC Pin Count QSP = 16, 20, 24, 28 NBS = 8, 14, 16 Dispensing R = Reel T = Tube Standard Grade Tolerance J= ±5 % G= ±2 % F= ±1 % Circuit 3 = Dual Terminator Resistance Value Code 1st three digits specify R1 resistance code. Last three digits specify R2 resistance code. Reliable Electronic Solutions Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com Terminations • LF = 100 % Sn (lead free) • Blank = Sn/Pb 04/05 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.