Nichrome Resistor Networks on Silicon Substrates SFN08A, SFN08B Series Isolated and bussed circuits Thin film resistor network RoHS compliant Features Precision Nichrome Resistors on Silicon Passivation coating provides protection in humid environments Industry Standard Packaging 8 pad SON1 4mm square with 0.8 mm pitch (JEDEC MO-229D) Ratio Tolerances < 0.05% TCR Tracking Tolerances < 5 ppm/C Schematics Electrical2 Standard Resistance Range3 1K ohms to 100K ohms (Isolated) 1K ohms to 30K ohms (Bussed) Resistor Tolerances 0.25% Ratio Tolerances 0.05% TCR Reference TCR table Operating Temperature Range -55C to +125C Interlead Capacitance < 2 pF 10,000 Megohms Insulation Resistance Maximum Operating Voltage 100 Vdc or Noise, Maximum (Mil-STD-202, Method 308) PR -25 dB Resistor Power Rating at 70C 0.1 Watts 1 Small outline no lead (SON) package is also referred to as quad flat no lead (QFN) or dual flat no lead (DFN) packages. 2 Specifications subject to change without notice. 3 E96 codes available. General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 01. 12 Nichrome Resistor Networks on Silicon Substrates SFN08A, SFN08B Series Package Power And Derating Curve Model Package Power @ 70C(watts)4 SFN08 0.4 Environmental (MIL-R-83401) Thermal Shock plus Power Conditioning R 0.25% Short Time Overload R 0.1% Terminal Strength R 0.1% Moisture Resistance R 0.2% Mechanical Shock R 0.25% Vibration R 0.25% Low Temperature Operation R 0.05% High Temperature Exposure R 0.1% Resistance to Solder Heat R 0.1% Marking Permanency Flammability Storage Temperature Range Per MIL-STD-202, Method 215 UL-94V-0 Rated -55C to +125C Mechanical Pad Plating Pad Material Pad Coplanarity Substrate Material Resistor Material Body Material 100 matte Tin (RoHS compliant) Copper Alloy 0.003" (0.08 mm) Silicon Passivated Nichrome Molded Epoxy 4 Maximum power per resistor @ 70C is 100 mW, not to exceed package power General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 01. 12 Nichrome Resistor Networks on Silicon Substrates SFN08A, SFN08B Series Ordering Information5 S FN 08 A XXXX F S LF 13 Model Series: S = Passivated Nichrome on Silicon Bulk packaging option: 7=7" Tape & Reel 13 = 13" Tape & Reel Package Type: Lead Finish: LF=Lead Free (RoHS) Pad Count: TCR Code: Circuit Type: A=Isolated B=Bussed Tolerance Code: Resistance code: Package Type SON Package Codes Package Size Pad count Mechanical Outline FN 4mm x 4mm 8 MO-229D Resistance First 3 digits are significant. Fourth digit denotes number of trailing zeros. For values less than 100, use "R" to denote a decimal point. Example, 51 and 10000 ohms are coded as 51R0 and 1002 respectively. Standard values follow E96. Resistance Tolereance Accuracy Code at 25C CA CB D FA F G J Absolute Resistance Tolerances (%) 0.25 0.25 0.5 1.0 1.0 2.0 5.0 Ratio Tolerances (R1 Ref) (%) 0.05 0.1 0.1 0.05 1.0 N/A N/A Temperature Coefficient Of Resistance (TCR) TCR Code (-55C to 125C) Q P S L Absolute (ppm/C) 25 50 100 200 Tracking (R1 Ref) (ppm/C) 5 5 N/A N/A Bulk Packaging Options Quantity Model + Pad Count SFN08 5 7" Reel 13" Reel 1000 3000 Contact customer service for custom designs and features. General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 01. 12