NHQM203B400T10 Amphenol

NTC Type SMD Thermometrics Surface Mount Devices EIA Style 1206 Nickel barrier solder coated 3 sided wrap around 0.5 mm (0.02 in) typical 1.27 mm 1.6 mm 0.2 mm (0.05 in) (0.063 mm 0.008 in) maximum 3.2 mm 0.2 mm (0.126 in 0.008 in) Features Nickel barrier tin plated terminations for Suitable for standard soldering techniques soldering Excellent solderability without High sensitivity to changes in temperature tombstoning Wide operating temperature range -40F to Ceramic between electrodes glass coated 257F (-40C to 125C) for improved stability Rugged construction Supplied in tape-and-reel packaging Available in other material systems Intended for temperature measurement, control and compensation Amphenol Advanced Sensors1.6 mm 0.2 mm 1.2 mm (0.0472 in) (0.063 in 0.008 in) maximum 0.5 mm 0.2 mm Type NHQ (0.0197 in 0.008 in) Specification Surface mount chip 1206 size Description A range of 1206 size surface mount NTC chip thermistors.The terminations are nickel barrier with tin plating. General 3.2 mm 0.2 mm (0.126 in 0.008 in) Soldering Recommendations Maximum storage time in closed package: NTC Type NHQ Outline Drawing One year Maximum storage time exposed to ambient conditions of 59F to 86F (15C to 30C), 15% to 70% RH: 30 days Code R25 W B (25/85) Drying prior to soldering: Not to exceed 48h NHQ202B410T5 2000 4100 at 176F (80C) or 16h at 212F (100C) or 8h NHQ222B410T5 2200 4100 at 257F (125C) NHQ252B410T5 2500 4100 Flux type: R or RMA NHQ302B410T5 3000 4100 NHQ472B355T5 4700 3550 Flow Soldering Conditions NHQ502B355T5 5000 3550 Preheat temperature: 176F to 302F (80C to 150C) NHQ103B375T5 10000 3750 Maximum rate of temperature change: NHQ153B400T5 15000 4000 4.5F/s or 2.5C/s NHQ203B400T5 20000 4000 Maximum solder temperature: 509F (265C) NHQ223B400T5 22000 4000 Maximum dwell time: 10 seconds NHQ303B400T5 30000 4000 Cooling in ambient or air flow of 5m/s NHQ333B400T5 33000 4000 NHQ473B400T5 47000 4000 Reflow Soldering Conditions NHQ503B400T5 50000 4000 Method infrared, hot gas, vapor NHQ104B425T5 100000 4250 Maximum rate of preheat temperature NHQ154B425T5 150000 4250 change: 4.5F/s or 2.5C/s NHQ304B435T5 300000 4350 Maximum temperature: 437F (225C) Maximum time above: 392F (200C) 30 NHQ474B435T5 470000 4350 seconds NHQ504B435T5 500000 4350 Maximum radiant flux: (0.1 to 100 W ) 5 W/ cm2 Maximum hot air temperature: 527F (275C) at 4 m/s Data Maximum vapor temperature: 419F (215C) Maximum rate of cooling: 4.5F/s or 2.5C/s Resistance tolerance at 77F (25C) 5% for 10% replace T5 by T10 in code. Cleaning Tolerance on B value 200 K Ultrasonic cleaning in methanol or isopropanol Minimum temperature: -40F (-40C) not exceeding 40 kHz for 5 minutes, or Maximum temperature: 257F (125C) aqueous cleaning not exceeding 158F (70C) Dissipation factor: 3 mW/K for 7 minutes (recommended). Time constant: 8 seconds maximum 2