resistors BR ball grid array (bga) resistor networks EU features • Virtually eliminates channel capacitance, a primary cause of reduced system performance • Eases routing design of DDR SDRAM termination • High precision ±1% is standard • Saves board space and high density mounting • Marking: Black body color with white marking (cut-out) • Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. dimensions and construction Size Code L P BR27A W Ceramic Marking Inner Electrode Substrate Protective Coating Lead-Free Solder øD K P Resistive Tinning Ball Film (Cu core) .039±.010 (1.0±0.25) .039±.010 (1.0±0.25) BR36S øD Dimensions inches (mm) H K .026±.002 (0.67±0.05) .026±.002 (0.67±0.05) .020±.010 (0.50±0.25) .020±.010 (0.50±0.25) .045±.006 (1.15±0.15) .045±.006 (1.15±0.15) L .354±.006 (9.0±0.15) .087 Max. (9.0±0.15) W Coplanarity .118±.006 (3.0±0.15) .006 Max. .157±.006 (0.15 Max.) (4.0±0.15) H circuit schematic R1=R2=R3..... R17=R18 R1=R2=R3..... R17=R18 R17 R1 R2 R3 R17 R18 R4 R1 R2 R3 BR27A BR Type R4 BR36S ordering information New Part # R18 27 Number of Terminals 27: 27 Terminal 36: 36 Terminal A Circuit Symbol A: Parallel network S: Separate P Terminal Pitch P: 1 mm T Termination Material T: Sn TEB Packaging TEB: 8 mm pitch embossed plastic 1001 Nominal Resistance ±1%: 3 significant figures + multiplier “R” indicates decimal on values <100Ω F Resistance Tolerance F: ±1% For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 98 1/24/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com ball grid array (bga) resistor networks applications and ratings Circuit Symbol Power Rating T.C.R. (ppm/°C) Maximum Working Voltage Maximum Overload Voltage 27 A Resistance Range (Ω) E-24 F: ±1% 36 S 0.05W / element 1W / package 10-1K ±200 25V 50V Part Number of Designation Terminals BR Rated Operating Ambient Temperature Temperature Range -55°C to +125°C +70°C Derating Curve environmental applications 100 % Rated Power 80 60 40 20 0 -60 -40 -20 -55 0 80 100 120 140 70 125 Ambient Temperature (°C) 20 40 60 160 Performance Characteristics Parameter Resistance T.C.R. Test Method Maximum ∆ R ±% 1% within specified tolerance Within specified T.C.R. 25°C -55°C/+125°C Short Time Overload ±0.5% Rated voltage times 2.5 for 5 seconds Resistance to Soldering Heat ±0.5% 250°C±5°C, 30 seconds, 3 times Rapid Change of Temperature ±0.5% -65°C (30 min.)/+125°C (30 min.) 5 cycles Moisture Resistance 1.0% 0.1 Rated load, 85°C, 85% RH, 1000 hours Endurance at 70°C 1.0% 70°C, full load 2000h 1.5h ON/0.5h OFF cycle Low Temperature Storage 0.5% -65°C, 24h, no load High Temperature Exposure 1.0% 125°C, 1000h, no load Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/28/10 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 99 resistors BR