Temperature Sensors - NTC Thermistors

Part Number	Description / PDF	Quantity
NTCLE100E3479GB0A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 47R 2%	0
NTCS0805E3222GMT Vishay BC Components/Beyshlag/Draloric	THERM NTC 2.2KOHM 3600K 0805	3507
NTCALUG01A103FLA Vishay BC Components/Beyshlag/Draloric	NTC LUG01A 10K 1% 3435K G24 38MM	800
NTCS0603E3103HMT Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 10KOHM 3610K 0603	70939
NTCLE100E3474GB0 Vishay BC Components/Beyshlag/Draloric	THERM NTC 470KOHM 4570K BEAD	4299
NTCLE100E3339JB0A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 33R 5%	0
NTCLE100E3223HB0A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 22K 3%	0
NTCLG100E2203JB Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 20KOHM 3997K DO35	1115
01C1801JF Vishay BC Components/Beyshlag/Draloric	NTC THERMISTORS	0
NTCLE203E3272JB0A Vishay BC Components/Beyshlag/Draloric	NTC NI 0.4 LEAD 2K7 5%	0
NTCLE100E3222HB0 Vishay BC Components/Beyshlag/Draloric	THERM NTC 2.2KOHM 3977K BEAD	3368
NTCALUG01A103F161A Vishay BC Components/Beyshlag/Draloric	NTC LUG01A 10K 1% G24 160MM A	167
NTCLE100E3332JT2A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 3K3 5% 2E	0
NTCLE100E3338HT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 3R3 3% 1E	0
NTCALUG01A473GA Vishay BC Components/Beyshlag/Draloric	NTC LUG 47K 2% 24AWG PTFE 38MM A	0
NTCAPIPE3C90105 Vishay BC Components/Beyshlag/Draloric	NTC PIPE 6X25 10K 3977K 105C 150	485
NTCLE350E4303JHB0 Vishay BC Components/Beyshlag/Draloric	NTC PEEK INSULATED NIFE LEADED,	481
08M3902JF Vishay BC Components/Beyshlag/Draloric	NTC THERMISTORS	0
NTCS0603E3333JHT Vishay BC Components/Beyshlag/Draloric	THERMISTOR NTC 33KOHM 3860K 0603	37915
NTCLE100E3478JT1A Vishay BC Components/Beyshlag/Draloric	NTC CU 0.6 LD CODED 4R7 5% 1E	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.