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Compact encapsulated thermistor STE SMDNTC3225N15002MK0 designed for performance in harsh conditions

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Compact encapsulated thermistor STE SMDNTC3225N15002MK0 designed for performance in harsh conditions

Operating Temperature : -40℃~+175℃

Description : SMD,8.1x6mm NTC Thermistors RoHS

Mfr. Part # : SMDNTC3225N15002MK0

Model Number : SMDNTC3225N15002MK0

Package : SMD,8.1x6mm

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Product Overview

The SMD-3225 Series Sealed Chip Thermistor is designed for circuit protection and electronic applications. Featuring advanced encapsulation technology with UL94-V0 rated materials, these thermistors offer a compact size, space-saving design, and superior performance in high temperature and humidity environments. They possess strong surge suppression capabilities and are supplied in SMD tape packaging, compatible with lead-free reflow/wave soldering for automatic mounting.

Product Attributes

Brand: Songtian ()
Product Type: Encapsulated Chip Thermistor
Series: SMD-3225
Technology: Negative Temperature Coefficient (NTC)
Packaging: SMD Tape Reel
Certifications/Standards: UL94-V0 rated encapsulation material
Origin: SHANTOU FREE TRADE ZONE SONGTIAN ELECTRONIC TECHNOLOGY CO.,LTD

Technical Specifications

General Specifications

Parameter	Value
Operating Temperature Range	-40 to 175
Encapsulation Material Rating	UL94-V0
Mounting Type	Surface Mount Device (SMD)
Soldering Compatibility	Lead-free Reflow/Wave Soldering

Product Dimensions

SMD-3225 Series Dimensions (Approximate): 8.1mm x 6.0mm

Dimensions for 'W' (External Fold) Lead Type:

Dimension	Size (mm)
L	8.1 0.3
L1	10.0 0.3
W	6.0 0.3
L2	11.4 0.3
H	2.5 0.3
L3	0.5 0.3
W1	2.5 0.3
T	0.15 0.01

Solder Pad Dimensions for 'W' (External Fold) Lead Type:

Dimension	Size (mm)
a	10.0 0.2
b	2.2 0.2
c	3.6 0.2

Dimensions for 'N' (Internal Fold) Lead Type:

Dimension	Size (mm)
L	8.1 0.3
L1	8.5 0.3
W	6.0 0.3
L2	6.0 Min
H	2.5 0.3
L3	1.1 0.3
W1	2.5 0.3

Solder Pad Dimensions for 'N' (Internal Fold) Lead Type:

Dimension	Size (mm)
a	5.7 0.2
b	1.65 0.2
c	3.0 0.2

Electrical Performance Table (Sample)

Model	Resistance @ 25 ()	Max Steady Current @ 25 (A)	B Value (K) 10%	Operating Temp. Range ()
SMDNTC32251R505*	1.5	5	2600	-40 to 175
SMDNTC322502005*	2	5	2600	-40 to 175
SMDNTC32252R505*	2.5	5	2600	-40 to 175
SMDNTC322505004*	5	4	2800	-40 to 175
SMDNTC322510003*	10	3	2800	-40 to 175
SMDNTC322520101*	200	1	3200	-40 to 175

Applications

Circuit Protection
Industrial Equipment
Communication Equipment
Consumer Electronics
Automotive Electronics

Part Number Encoding Principle

SMD NTC 3225 N 2R5 05 M 0

NTC: Negative Temperature Coefficient Thermistor
3225: Model, Size 8.1*6.0mm
N: Lead Shape (Internal Fold)
W: Lead Shape (External Fold)
2R5: Zero-Power Resistance at 25 (e.g., 2.5)
05: Max Steady Current (e.g., 5.0A)
M: Resistance Tolerance (e.g., 20%)

Marking Example

Songtian Logo
NTC (Negative Temperature Coefficient Thermistor)
3225 (Size: 3225 8.1*6.0mm)
050 (Zero-Power Resistance at 25: 5.0)
M (Resistance Tolerance: M (20%))

Packaging Information

Tape & Reel Packaging Dimensions (Unit: mm)

SPEC	N (Internal Fold)			W (External Fold)			Unit/Reel
SPEC	A0	B0	K0	A0	B0	K0	Unit/Reel
Dimensions	6.350.1	8.450.1	3.250.1	6.160.1	11.900.15	3.100.1	4000pcs
P	8.00.1	4.00.1	2.00.1	8.00.15	4.00.15	2.00.15
T	0.30.05			0.30.05

15-inch Reel Dimensions (Unit: mm)

SPEC	N (Internal Fold)		W (External Fold)
SPEC	Dimensions	Hole Diameter	Dimensions	Hole Diameter
W0.2	16.4	1003.0	24.4	1003.0
E0.5	2.3		2.3
F0.5	10.75		10.75
T10.3	2.2		2.2
T20.3	2.2		2.2
A+0/-2	380		380
D0.3	13.3		13.3

Soldering Instructions

Lead-Free Reflow Soldering Curve:

Welding Temperature: 230260
Welding Time: 1030s
Preheating Temperature: 170 max

Wave Soldering Curve:

(Details not provided in source text)

Soldering Iron Rework Conditions:

Condition	Value
Soldering Iron Tip Temperature	400 (max.)
Welding Time	3.5 sec (max.)
Soldering Iron Power	50W (max.)

Storage Environment

Recommended Storage Conditions: Temperature: 10~30, Relative Humidity: 60% max.
Use within 6 months of delivery.
Solder NTC within 168 hours after opening moisture-proof packaging.
If storage period exceeds 6 months or HIC card indicator changes color, baking (60 * 168hr) is required before soldering.
Avoid storage in corrosive substances (sulfur, chlorine gas, acid).
Store on shelves to avoid moisture, dust, heat shock, vibration, and direct light.

Usage Precautions

Ensure operating ambient temperature is within specified technical conditions.
Maintain a distance of >3mm from heat-generating or combustible components.
Wear gloves when handling leads.
This specification guarantees product quality as a standalone unit. Ensure your product is effectively evaluated and confirmed according to your specifications when integrating our product.
Songtian is not liable for failures caused by use beyond the defined product functions in this specification.
In case of NTC failure, implement fail-safe functions (e.g., using fuses) to prevent hazards like overheating, smoking, or fire in case of short circuits.

2508261540_STE-SMDNTC3225N15002MK0_C50751515.pdf

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