Electronic Components Datasheet Search |
|
EMC Datasheet(PDF) 3 Page - TT Electronics. |
|
EMC Datasheet(HTML) 3 Page - TT Electronics. |
3 / 4 page Pulse Withstanding Fusible Flameproof Metal Film Resistors EMC Series Application Notes 1.Iftheresistorsaretodissipatefullratedpower,itisrecommendedthattheterminationsshouldnotbesolderedcloserthan4mm from the body. 2.DuetooperatingtemperaturelimitsimposedbysomePCBmaterials,deratingmaybenecessary.Anestimateofthetemperaturerise tobeexpectedcanbecalculatedusingthethermalimpedancefiguresgivenunderElectricalData. 3.Toprotectagainstfireunderallconditionsofoverload,apositiveclearanceofatleast13mmshouldbeprovidedbetweenthebodyof theresistorandanycombustiblematerials. 4.EMCresistorscanalsobesuppliedloosepackedwithradial,goalpostorlancetpre-formedleads,tapepackedwithradialpre-formed leads,orinZI-formSMDformatpackedinblistertape-seehttp://www.ttelectronics.com/themes/ttelectronics/datasheets/resistors/ ZI-form.pdf Packaging OurstandardpackagingforEMCistapedandboxed.ThecriticaldimensionsareshowninFigure1.Thecomponentwireswillnot protrudebeyondtheoutsideedgeofthetapes.Alternativepackagingisavailablebyrequest. mm EMC2 b 68 b f1 f2 6 6 5 Body location f1 – f2 1.4 mm Figure 1 03.17 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. © TT Electronics plc http://www.ttelectronics.com/resistors BI Technologies IRC Welwyn EMC2RRadialTapedDimensions(mm) Dimension Notation Nominal Tolerance Component Body Length L 10.0 Max Component Body Diameter D 4.0 Max Terminal Lead Diameter d 0.8 Nom Component Pitch P 12.7 ±0.5 PitchofHoles Po 12.7 ±0.2 DistancebetweenHole&Component P1 3.85 ±0.3 P2 5.85 ±0.5 Lead Pitch F 5.0 +0.75-0.34 WidthofBackingStrip W 18.0 ±0.3 PositionofHole W1 9.0 ±0.25 DiameterofHole Do 4.0 ±0.3 HeighttoLeadForm Ho 16.0 ±0.3 HeightfromLeadForm Ho1 21.7 Max HeighttoResistor Ho2 18.0 Max Width of Adhesive Tape W2 15.0 ±0.5 Length of protrusion l <2.5 Form Dimensions K1 2.0 ±0.3 K2 3.0 ±0.5 K3 1.5 ±0.25 K4 1.0 ±0.2 Also a 2W radial taped version is available as shown below Application Notes Application Notes 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 limits imposed by some PCB materials, derating may be necessary. An estimate of the temperature rise to be expected at the center of the body can be calculated using the thermal impedance figures given under Electrical Data. 3. For the purpose of UL approval, the following points should be observed: 3.1 To protect against fire under all conditions of overload, a positive clearance of at least 13mm should be provided between the body of the resistor and any combustible materials. 3.2 A positive clearance of 13mm should be provided between the resistor body or terminations and uninsulated parts of opposite polarity or uninsulated dead metal parts. 3.3 Limited Short Circuit testing should be performed in the complete appliance. 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 http://www.ttelectronics.com/sites/default/files/resistors-datasheets/ZI-form.pdf Also a 2W radial taped version* is available as shown below. *Although body dimensions differ slightly, ULWP2R Performance and Electrical Data are identical to those of ULW2 ULWP2R Radial Taped Dimensions (mm) Dimension Notation Nominal Tolerance Component Body Length L 10.0 Max Component Body Diameter D 4.0 Max Terminal Lead Diameter d 0.8 Nom Component Pitch P 5 ±0.5 Pitch of Holes Po 10 ±0.2 Distance between Hole & Component P1 3.85 ±0.3 P2 5.85 ±0.5 Lead Pitch F 5.0 +0.75 -0.34 Width of Backing Strip W 18.0 ±0.3 Position of Hole W1 9.0 ±0.25 Diameter of Hole Do 4.0 ±0.3 Height to Lead Form Ho 16.0 ±0.3 Height from Lead Form Ho1 17.0 MAX Height to Resistor Ho2 18.0 MIN Width of Adhesive Tape W2 15.0 ±0.5 Length of protrusion l <2.5 Form Dimensions K1 2.0 ±0.3 K2 3.0 ±0.5 K3 1.5 ±0.25 K4 1.0 ±0.2 (Delete redundant subtitle) (This diagram exists on WP-S, so just copy it) |
Similar Part No. - EMC |
|
Similar Description - EMC |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |