Temperature Sensors - NTC Thermistors

Part Number	Description / PDF	Quantity
NTCLE100E3474GT2A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 470K 2% 2E	0
NTCLE203E3473GB0A Vishay BC Components/Beyshlag/Draloric	NTC NI 0.4 LEAD 47K 2%	0
NTCLE100E3331HB0A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 330R 3%	0
NTCS0805E3104GMT Vishay BC Components/Beyshlag/Draloric	THERM NTC 100KOHM 3590K 0805	0
NTCLE100E3479JT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 47R 5% 1E	0
NTCS0603E3472GHT Vishay BC Components/Beyshlag/Draloric	THERM NTC 4.7KOHM 3830K 0603	11700
NTCALUG02A502G Vishay BC Components/Beyshlag/Draloric	THERM NTC 5KOHM 3984K RING LUG	0
NTCLE203E3123JB0 Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 12KOHM 3740K BEAD	0
01T2002FF Vishay BC Components/Beyshlag/Draloric	NTC THERMISTORS	0
NTCLE100E3332GB0A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 3K3 2%	0
NTCLE100E3682JT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 6K8 5% 1E	0
NTCLE203E3302SB0 Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 3KOHM 3984K BEAD	15619
NTCLE100E3223JT2A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 22K 5% 2E	0
NTCLE100E3332HT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 3K3 3% 1E	0
NTCLE100E3151JB0 Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 150OHM 3560K BEAD	5731
NTCALUG01T103G400A Vishay BC Components/Beyshlag/Draloric	NTC LUG01T 10K 2% 3984K G26 40MM	997
NTCS0402E3472JMT Vishay BC Components/Beyshlag/Draloric	THERM NTC 4.7KOHM 3595K 0402	9975
NTCLE100E3472HT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 4K7 3% 1E	0
NTCLE100E3202HT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 2K 3% 1E	0
NTCLE100E3681GT2A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 680R 2% 2E	0

Temperature Sensors - NTC Thermistors

1. Overview

NTC (Negative Temperature Coefficient) thermistors are temperature-sensitive resistors whose resistance decreases with increasing temperature. This semiconductor ceramic device utilizes metal oxide materials to achieve precise temperature measurement and control. As a fundamental component in thermal management systems, NTC thermistors play critical roles in modern electronics, automotive engineering, and industrial automation due to their high sensitivity ( : 2000-5000 K) and accuracy ( 0.1 C to 5 C).

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Bead Thermistors	Small size ( 0.5-5mm), fast response (<50ms), glass-encapsulated	Medical probes, liquid temperature monitoring
Disk Thermistors	Higher power rating, epoxy-coated, axial leads	Power supply thermal protection, HVAC systems
Chip Thermistors	SMD packaging, low profile (0.6-3.2mm), RoHS compliant	Smartphone thermal management, wearable devices
Glass-Encapsulated	Hermetic seal, corrosion resistance, operating temp: -50 C to +300 C	Automotive battery monitoring, aerospace sensors

3. Structure and Composition

Typical NTC thermistor construction includes:

Semiconductive ceramic core (Mn-Ni-Co-Ox system)
Platinum alloy electrode layers (sintered or plated)
Protective epoxy/glass encapsulation (IP67 rated)
Lead wires (Cu/Ni alloy, 26-34 AWG)

Manufacturing process involves powder synthesis at 1500 C, isostatic pressing, and controlled atmosphere sintering to achieve desired R-T characteristics.

4. Key Technical Specifications

Parameter	Description	Significance
Rated Resistance (R25)	Resistance at 25 C (100 -10M range)	System compatibility, signal conditioning design
B-Value (K)	Material constant (2000-5000K)	Determines sensitivity across operating range
Tolerance	Resistance deviation ( 1% to 15%)	Affects measurement accuracy
Operating Temp Range	-100 C to +600 C (varies by type)	Environmental suitability
Dissipation Factor	mW/ C (self-heating coefficient)	Power consumption and stability considerations

5. Application Fields

Primary industries utilizing NTC thermistors:

Industrial: Process control ( 0.5 C accuracy), motor protection
Consumer Electronics: Battery management (Li-ion charging), smart thermostats
Medical: Patient monitoring (Class F accuracy), lab equipment
Automotive: Battery pack thermal monitoring (ISO 14001 compliance), ECU protection

Notable application example: Tesla Model S battery management system uses 48-channel NTC array for cell temperature monitoring ( 1 C accuracy).

6. Leading Manufacturers and Products

Manufacturer	Key Products	Technical Highlights
Murata Electronics	NXFT Series	Automotive-grade (AEC-Q200), 0.5 C accuracy, -50 C to +150 C range
TE Connectivity	NTCLE Series	Medical certification (IEC 60601), 3.2mm chip format
Vishay Beyschlag	NTCAl Series	Aluminum housing, 50W power handling, IP68 rating

7. Selection Guidelines

Key considerations for NTC thermistor selection:

Resistance-Temperature curve matching application requirements
Environmental factors: humidity (IP rating), vibration (automotive shock specs)
Electrical parameters: operating current (self-heating effects)
Form factor constraints (SMD vs through-hole)
Calibration requirements (standard vs customized R-T tables)

Recommend verifying long-term stability (aging rate <0.2%/year) and RoHS compliance for production applications.

8. Industry Trends

Emerging developments include:

Micro-NTC fabrication (MEMS-based, <0.1mm chips)
High-temperature stability improvements (up to 600 C operation)
Integration with wireless sensor networks (Zigbee/LoRa compatibility)
AI-enhanced linearization algorithms (reducing external circuit complexity)

Market growth projected at 8.2% CAGR through 2027 driven by EV battery management demands.