etal Film Resistors Welwyn Compon Flameproof Power Resistors Metal Film Resistors Flameproof Power allest size for power rating Metal MFP Series Film Resistors Welwyn Components Series istance range 0.1 ohms to 1M ohms * Smallest size for power rating * Smallest size for power rating Flameproof protection Resistance range 0.1 ohms to 1M ohms Flameproof protection Surface mount ZI-form option MFP Series meproof protection * Resistance range 0.1 ohms to 1M ohms All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) Electrical Data ctrical Data MFP1 Power rating at 70C watts Resistance range ohms Limiting element voltage watts TCR ppm/C ohms % Resistance tolerance Standard values g element voltage 350 1 - 9.1 : 200 < 1 : 300 ppm/C C nce tolerance >=1 : 1.0 10 : 100 0R1 - 1M 2 100 1R0 - 1 1, 2, 5 120 350 1 - 9.1 : 200 82 10 : 100 Physical al impedance 1, 2, 5 E24 preferred Data C/watt nt temperature range (mm) & Weight (g) Dimensions L Max 120 Min. -55 to 155 f min d nom mounting centres bend radius Wt.nom MFP1 6.2 2.5 21.0 0.6 10.2 0.6 0.3 MFP2 10.0 4.0 27.0 0.8 18.4 1.2 0.55 Construction nsions (mm) & Weight (g) 2.5 21.0 10.0 Terminations 4.0 27.0 d D L f Marking The resistance element is a precisely controlled thin film of PCB by aMin. metal alloy on a high purity ceramic core, protected cement coating applied so that terminations remain mounting bend completely clear. This permits a well defined body length Max D Max f min d nom centres radius (clean lead to clean lead dimension L). 6.2 82 C PCB D Max sical Data 100 -55 to 155 % rd values ruction <1 : 0.7 MFP2 1R0 - 1M E24 preferred C/watt Ambient temperature range L < 1 : 300 2 MFP1 volts Thermal impedance Type >=1 : 1.0 0R1 - 1M volts rating at 70C nce range <1 : 0.7 MFP2 0.6 10.2 0.6 0.8 18.4 1.2 Material Solder-coated copper wire. Strength The terminations meet the requirements of IEC 68.2.21 Resistors are colour coded with 4 or 5 bands depending on value and tolerance. IEC 62 colours are used. Solvent Resistance Wt.nom d The body protection and marking are D resistant to all normal 0.3 L industrial cleaning solvents suitable for printed circuits. f 0.55 Flammability The resistor coating will not burn or emit incandescent particles under any condition of applied temperature or Marking power overload. stance element is a precisely controlled thin film of of Resistors are colour coded with 4 or 5 bands depending Solderability The terminations meet the requirements IEC 115-1, Clause 4.17.3.2 loy on a high purity ceramic core, protected by a value and tolerance. IEC 62 colours are used. coating applied so that terminations remain General Note tely clear. General This permits a well defined body length Solvent Resistance Note Welwyn Components reserves the right to make changes in product specification without notice or liability. BI Technologies IRC A Welwyn subsidiary of All Electronics information is subject to Welwyn's own data and is considered accurate at timeor ofliability. going to print. TT reserves the right to make changes in product specification without notice ead to clean lead dimension L). The body protection and marking are resistant to all nor TT electronics plc All information is subject to TT Electronics' own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK industrial cleaning solvents suitable for printed circuits. Issue D * 03.06 Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com nations (c) TT Electronics plc 01.19 143 Flameproof Power Flameproof Power Metal Resistors MetalFilm Film Resistors Welwyn Components MFP Series MFP Series Performance Data Maximum Load at rated power : 1000 hours at 70C R % Shelf life : 12 months at room temperature R % 2 Derating from rated power at 70C R % zero at 155C Climatic R % 3 5 Climatic category 50/155/56 Temperature rapid change R % Resistance to solder heat R % 0.5 volts 500 min Voltage proof Application Notes 0.5 Packaging 1. If the resistors are to dissipate full rated power, it is recommended that the terminations should not be soldered closer than 4mm from the body. 2. Due to operating temperature limitations imposed by some pcb materials, derating may be necessary. An estimate of the temperature rise to be expected can be calculated using the thermal impedance figures given under Electrical Data. MFP resistors are normally supplied tape packed ready for loading onto automatic sequencing and insertion machines. The standard taping method and critical dimensions are shown in Figure 1. Component wires will not protrude beyond the outside edge of the tapes. Alternative packaging available by request. 3. These products are also available in a range of lead forming options. In particular, MFP2 is available in ZI-form SMD format packed in blister tape - see: http://www.ttelectronics.com/themes/ttelectronics/datasheets/resistors/ZI-form.pdf http://www.ttelectronicsresistors.com/pdf/datasheet/ZI-form.pdf Figure 1 Type MFP1 MFP2 52 68 b (mm) 5 f1 Body location f Ordering Procedure f2 b 6 6 1 - f 2 1.4 mm Example: MFP2 at 4.7 kilohms and 1% tolerance in ammo pack box of 2000 pieces - MFP2- 4K7FI Type Value (use IEC62 code) Tolerance (use IEC62 code) F G J 1% 2% 5% Packing I Ammo MFP1 MFP2 5000/box 2000/box Standard General Note (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK BI Technologies IRC Issue Welwyn D * 03.06 Telephone: +44 (0) 1670 822181 * Facsimile: (0) 1670 829465 * without Email: info@welwyn-tt.com * Website: www.welwyn-tt.com TT Electronics reserves the right to make changes+44 in product specification notice or liability. 144 All information is subject to TT Electronics' own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors (c) TT Electronics plc 01.19 U L 4. ULW resistors can also be supplied with radial, goalpost or lancet pre-formed leads. In particular ULW2, ULW3, ULW4 and ULW5 are available in ZI-form SMD format packed in blister tape - see (This diagram exists on WP-S, W http://www.ttelectronics.com/sites/default/files/resistors-datasheets/ZI-form.pdf P 2 R 3 3 R J T 1 5 Flameproof Power2 1 Metal Film Resistors 1 3 2 MFP Series Leadforming Type 4 so just copy it) 5 3 4 5 Value Tolerance Packing J = 5% T15 Tape & reel, 1500/reel ULWP2 R = Radial taped 3/4 characters R = ohms Also a 2W radial taped version is available as shown below Also a 2WRadial radialTaped taped Dimensions version* is available MFP2R (mm) as shown below. Notation Nominal Tolerance Dimension ULWP2R Radial Taped Dimensions (mm) WHS ADDITIONAL Component Body LengthDimension L Notation 10.0 Max Nominal Tolerance 10.0Max Max Component BodyComponent DiameterBody Length DL 4.0 Component Body Diameter 4.0Nom Max Terminal Lead Diameter dD 0.8 0.8 Nom Component PitchTerminal Lead Diameter(WHSP2R Pd 12.7 0.5 & taped, 100 ohms 5%, Pb-free) Example: WHSP2R-100RJT15 radially formed Component Pitch P 5 0.5 Pitch of Holes Po 12.7 0.2 Pitch of Holes Po 10 0.2 P1 3.85 0.3 P1 3.85 0.3 Distance between Hole &between Component Distance Hole & W H S Component P 2 R 1P2P2 0 05.85 R J 0.5 T 1 5 5.85 0.5 Lead Pitch 1 Lead Pitch F 5.0 +0.75 -0.34 F +0.75 2 3 5.0 4 -0.34 5 Width of BackingWidth Stripof Backing Strip WW 18.0 0.3 18.0 0.3 Position of Hole Position of Hole W1 9.0 0.25 W1 9.0 0.25 1 2 3Do 4 0.3 5 4.0 Diameter of HoleDiameter of Hole Do 4.0 0.3 Height to Lead Form Ho 16.0 0.3 Type Value Tolerance Packing Height to Lead Leadforming Form Ho 16.0 0.3 Height from Lead Form Ho1 17.0 Max MAX Height from Lead Ho1 21.7 WHSP2 R = Form Radial taped 3/4 characters F = 1% T15 Tape & reel, 1500/reel Height to Resistor Ho2 18.0 MIN Height to Resistor R =Ho2 ohms 18.0 Max G = 2% Width of Adhesive Tape W2 15.0 0.5 Width of Adhesive Tape W2 15.0J = 5%0.5 Length of protrusion l <2.5 Length of protrusion l <2.5 K1 2.0 0.3 K1K2 2.0 0.3 3.0 0.5 Form Dimensions K2K3 3.0 0.5 1.5 0.25 Form Dimensions K3K4 1.5 0.25 1.0 0.2 *Although body dimensions differK4 slightly, ULWP2R and Electrical Data are identical to those of ULW2 1.0 Performance 0.2 MFP REPLACEMENT Ordering Procedure Example: MFP2-4K7FI (MFP2, 4.7 kilohms 1%, Pb-free) Example: MFP2-4K7FI (MFP2, 4.7 kilohms 1%, Pb-free) M F P 2 1 - 4 K 2 3 7 F I 4 5 1 2 3 4 5 Type Leadforming Value Tolerance Packing MFP1 MFP2 Blank = Axial 3/4 characters R = ohms R = Radial taped (MFP2 only) K = kilohms M = megohms F = 1% G = 2% J = 5% MFP1 MFP2 T15 MFP2R I 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. Ammo Reel 5000/box 2000/box 1500/reel BI Technologies IRC Welwyn www.ttelectronics.com/resistors (c) TT Electronics plc 01.19