333 3 NTCLE350E4 www.vishay.com Vishay BCcomponents NTC Thermistors, Insulated Leads for 185 C Applications FEATURES Advanced NTC ceramic technology Wide temperature range from -55 C to +185 C Cost efficient thermistor design Small body diameter of maximum 2.4 mm Fast response time and high sensitivity LINKS TO ADDITIONAL RESOURCES Improved noxious gas and acid resistance Insulated Ag-plated NiFe alloy leads 3D Models Design Tools Related Documents Mounting: radial AEC-Q200 qualified (rev. D) QUICK REFERENCE DATA Material categorization: for definitions of compliance PARAMETER VALUE UNIT please see www.vishay.com/doc 99912 Resistance value at 25 C 2.1K to 30K Tolerance on R -value 1, 2, 3, 5 % APPLICATIONS 25 B -value 3435 to 3984 K 25/85 NTCLE350 can be processed by potting or molding into sensors for electric traction motors, for example in the Tolerance on B -value 0.5 to 1 % 25/85 sensing and protection of high current connectors. Operating temperature range -55 to +185 C NTCLE350 is suitable for EGR applications (exhaust gas Response time (63.2 %) in stirred air 6s recirculation) for steady state temperatures going up to 25 C to 85 C (for information only) 185 C. Dissipation factor in still air 1.0 mW/K (for information only) This series is also intended for oil temperatures sensors (OTS), in for example transmission systems and liquid Maximum power dissipation at 55 C 100 mW cooled starter/generator systems. Minimum dielectric withstanding voltage (RMS) between terminals 1000 V AC The AEC-Q200 qualification (between -55 C and 185 C) and coated body enables this series to be used for classical motor therma l Minimum insulation resistance sensing applications (engine coolant, fuel sensor, TMAP for between terminals and coated 100M manifold air pressure) as well as in HVAC applications. body at 500 V DC Weight 30 mg DESCRIPTION These negative temperature coefficient thermistors consist DESIGN-IN SUPPORT of a mini-chip soldered between two AWG 32 PEEK insulated silver plated NiFe alloy leads and coated with Not intended for fluid immersed applications or continuous black colored epoxy lacquer. High adhesive strength contact with water or conducting liquids. See also between PEEK wire and encapsulating lacquer. Environmental Conditions. Can be potted in suitable resins. For complete curve computation, please visit: MOUNTING www.vishay.com/thermistors/ntc-curve-list/ Important mounting and handling instructions: see www.vishay.com/doc 29222 Consult Vishay for specific applications, mounting, alternative RT curves, or wire length. ELECTRICAL DATA AND ORDERING INFORMATION (1) SAP MATERIAL AND ORDERING NUMBER R R -TOL. B B -TOL. 25 25 25/85 25/85 ( ) ( %) (K) ( %) RoHS COMPLIANT 2100 1, 2, 3, 5 3511 1 NTCLE350E4212xMB0 5000 1, 2, 3, 5 3435 1 NTCLE350E4502xLB0 10 000 1, 2, 3, 5 3984 0.5 NTCLE350E4103xHB0 10 000 1, 2, 3, 5 3435 1 NTCLE350E4103xLB0 30 000 1, 2, 3, 5 3935 1 NTCLE350E4303xHB0 Note (1) Replace the x-digit by J for R -tolerance of 5 %, H for 3 %, G for 2 %, and F for 1 % 25 Revision: 16-Oct-2020 Document Number: 29218 1 For technical questions, contact: nlr vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 DDD D NTCLE350E4 www.vishay.com Vishay BCcomponents DIMENSIONS in millimeters B d d 2 1 T L L 2 1 L TB L L L d d 1 2 2 MAX. 1 2.4 max. 2.4 max. 40 1 6 1 5 1 0.4 0.2 0.02 MOUNTING The thermistors are suitable for all standard assembly processes like crimping, brazing, and welding (laser, ultrasonic, or resistance). The parameters of the assembly process should be chosen in accordance with the lead-wire material (silver plated Ni-Fe alloy) and validated in application. Different conductor, insulation material, and dimensions are available on request. The mounting process should be in compliance with the following guidelines and recommendations: Peeling forces on the leads should be reduced to a minimum and should never exceed 3 N Avoid large temperature gradients between the welding region and the sensor After complete assembly it is recommended to fix the leads in the welding region with a strain relief If using a ceramic adhesive / potting or filling material avoid phosphate-based binders. Always follow the suppliers curing specifications fully including bringing the part up to operating temperature for a short time to ensure good moisture resistance and electrical performance of the total sensor. ENVIRONMENTAL CONDITIONS The thermistor should not be placed in a reducing atmosphere or be subjected to corrosive substances (e.g. phosphates) which could affect the functionality or the lifetime of the thermistor. Always maintain a sufficient partial oxygen pressure to avoid abnormal electrical drift and / or a reduced life time. The thermistor design can withstand conditions with low concentrations of H S, NO , Cl , and SO according to 2 2 2 2 DIN EN 60068-2-60, test Ke, method 4. Additionally it can withstand FOS90 testing according to ASTM B 809-95 (1000 hours / 90 C / 76 % to 95 % RH / sulfur flowers) and 12 hours immersion (at 50 C) in low concentrations of HCl, H SO , and acetic 2 4 acid without functional or visual damage. The thermistor was qualified according to AEC-Q200 rev. D with top temperature of 185 C to assure best performance in todays most challenging environments. Revision: 16-Oct-2020 Document Number: 29218 2 For technical questions, contact: nlr vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000