R O HNTC0402-103F3450FA Chip NTC Thermistor Featuring Lead Free Materials and Halogen Free Construction

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Product Description

Product Overview

The HNTC0402 Series Chip NTC Thermistor is a leadless, SMD type thermistor designed for high-density mounting. It offers excellent solderability, a wide operating temperature range of -40 to +125, and is RoHS compliant, Lead-Free, and Halogen Free. This series is ideal for applications in consumer electronics, office automation, industrial power supplies, medical electronics, and IoT sensor nodes.

Product Attributes

Brand: HJC (Zhuhai Hongjiacheng Technology co., Ltd)
Origin: Zhuhai, China
Certifications: RoHS compliant, Lead-Free, Halogen Free

Technical Specifications

Parameter	Condition	Value	Unit
Rated Zero-Power Resistance	Ta=250.1	101%	K
B Constant (Material Constant)	25/85	34501%	K
Permissible Operating Current	Ta=250.1	0.31	mA
Thermal Dissipation Constant	Ta=250.1	1.0	mW/
Thermal Time Constant	Ta=250.1	<3	sec
Rated Electric Power	Ta=250.1	100	mW
Operating Temperature Range	/	-40 to +125

Recommended Soldering Conditions (Reflow)

Feature	Condition
Pre-heat Temperature Min	+150
Pre-heat Temperature Max	+170
Pre-heat Time	9030 secs. ramp up rate 3/sec. Max
Time above 240	20~40 secs
Peak Temperature	+260, 10 secs. Max
Ramp-down Rate	6/sec. Max
Time 25 to Peak Temp (TP)	8 min. Max

Iron Soldering Recommendation

Item	Conditions
Temperature of Soldering Iron-tip	280Max
Soldering Time	3 secs. Max
Times for iron soldering	1 time Max

Reliability Test Summary

Test Item	Standard Test Methods	Requirements
Terminal Strength	IEC 60068-2-21	No removal or split of the termination or other defects shall occur.
Resistance to Flexure	IEC 60068-2-21	No visible damage. \|R25/R25 \|5%
Dropping	IEC 60068-2-32	No visible damage.
Solderability	IEC 60068-2-58	No visible damage. Wetting shall exceed 95% coverage.
Resistance to Soldering Heat	IEC 60068-2-58	No visible damage. \|R25/R25 \|5% \|B/B \|2%
Temperature cycling	IEC 60068-2-14	No visible damage \|R25/R25 \|3% \|B/B \|2%
Resistance to dry heat	IEC 60068-2-2	No visible damage. \|R25/R25 \|5% \|B/B \|2%
Resistance to cold	IEC 60068-2-1	No visible damage. \|R25/R25 \|5% \|B/B \|2%
Resistance to damp heat	IEC 60068-2-78	No visible damage. \|R25/R25 \|3% \|B/B \|2%
Resistance to high temperature load	IEC 60539-1 5.25.4	No visible damage. \|R25/R25 \|5% \|B/B \|2%

Physical Dimensions

Part	Package	L (mm)	W (mm)	H (mm)	L1 (mm)
0402	0402	1.000.15	0.500.15	0.500.15	0.250.10

Storage Conditions

Item	Specification
Storage temperature	-10 to +40
Storage Conditions	Light-proof, Hermetically Sealed, Moisture-proof
Relative humidity	< 75 % RH
Storage period	Within 6 months after delivery