RUILON NTC8D-9

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Product Description

Negative Temperature Coefficient Resistor (NTC Series)

The NTC Series Negative Temperature Coefficient Resistors are designed to exhibit a significant decrease in electrical resistance as the temperature of the component increases. This characteristic makes them suitable for various temperature sensing, control, and compensation applications.

Model	Resistance ()	Max. Steady State Current (A)	Dissipation Factor (mW/C)	Thermal Time Constant (s)	Material Constant B (K)	Max. Allowable Operating Temperature (C)
NTC5D-5	5	1	0.35	6	2700	240V/120V
NTC8D-5	8	0.7	0.77	6	2700	240V/120V
NTC10D-5	10	0.7	0.77	6	2700	240V/120V
NTC20D-5	20	0.5	0.997	6	2800	240V/120V
NTC33D-5	33	0.5	1.88	6	2950	240V/120V
NTC3D-7	3	3	0.25	10	2700	240V/120V
NTC5D-7	5	2	0.28	10	2700	240V/120V
NTC8D-7	8	1	0.54	9	2700	-40~+175
NTC10D-7	10	1	0.62	9	2700	240V/120V
NTC12D-7	12	1	0.82	9	2700	240V/120V
NTC16D-7	16	0.7	1.00	9	2800	240V/120V
NTC20D-7	20	0.6	1.11	9	2800	240V/120V
NTC22D-7	22	0.6	1.1	9	2800	240V/120V
NTC33D-7	33	0.5	1.49	9	2950	240V/120V
NTC3D-9	3	4	0.12	11	2600	240V/120V
NTC5D-9	5	3	0.21	11	2700	240V/120V
NTC6D-9	6	2	0.32	11	2700	240V/120V
NTC8D-9	8	2	0.40	11	2700	240V/120V
NTC10D-9	10	2	0.46	11	2700	240V/120V
NTC12D-9	12	1	0.66	11	2700	240V/120V
NTC15D-9	15	1	0.80	11	2800	240V/120V
NTC16D-9	16	1	0.80	11	2800	240V/120V
NTC20D-9	20	1	0.88	11	2800	240V/120V
NTC22D-9	22	1	0.95	11	2800	240V/120V
NTC33D-9	33	1	1.12	11	2950	240V/120V
NTC50D-9	50	1	1.25	11	2950	240V/120V
NTC100D-9	100	0.8	3.02	11	3200	240V/120V
NTC120D-9	120	0.8	3.02	11	3200	-40~+175
NTC2.5D-11	2.5	5	0.10	14	2700	240V/120V
NTC3D-11	3	5	0.10	14	2700	240V/120V
NTC5D-11	5	4	0.16	14	2700	240V/120V
NTC8D-11	8	3	0.25	14	2800	240V/120V
NTC10D-11	10	3	0.28	14	2800	240V/120V
NTC12D-11	12	2	0.46	14	2800	240V/120V
NTC15D-11	15	2	0.47	14	2800	240V/120V
NTC16D-11	16	2	0.47	14	2800	240V/120V
NTC20D-11	20	2	0.51	14	2950	240V/120V
NTC22D-11	22	2	0.56	14	2950	240V/120V
NTC33D-11	33	1.5	0.67	14	2950	240V/120V
NTC47D-11	47	1.5	1.02	14	2950	240V/120V
NTC50D-11	50	1.5	1.02	14	2950	240V/120V

Electrical Characteristics

Item	Specification	Test Conditions & Methods
Rated Zero-Power Resistance RN ()	RN20%	Ambient temp. Range:25C2C(TA). Testing voltage: 1.5VDC. After placing for 1~2 hours under TA, the resistance value shall be measured.
Material Constant B	B=T1T2/( T2- T1) x Ln(R1/R2)	R1, R2 is zero-power resistance at T1, T2. T1=298.15 K(25C), T2 = 323.15 K(50C)
Thermal Dissipation Constant (mW/C)	See the main technical parameter list	The thermal dissipation constant() could be calculated by the ratio of a change in power dissipation(P) of the thermistor to a change in temperature(T) of the thermistor at a specified ambient temperature.
Thermal Time Constant T(s)	See the main technical parameter list	The time(t) shall be measured within which the temperature is reached at 63.2% of the ambient temperature change under zero power condition.
Max. Steady State Current (A)	See the main technical parameter list	Ambient temperature:25C2C. Testing Time: min 100h.

Reliability Test

Item	Specification	Test Conditions & Methods
Temp. Cycling Testing	No visible mechanical damage. RN / RN 20% (R = \| RN-RN' \| )	Ta:-403C/ 30min252C/ 5minTb:2003C/30min252C/ 5min. Cycles: 5 times. After recovering 4~5 h under 252C, the rated zero power resistance value RN' shall be measured.
Electrical Cycling Testing	No visible mechanical damage. RN / RN 20% (R = \| RN-RN' \| )	Ambient temp. Range:25C2C. Cycles: 1,000 times. On / Off: 1m / 5m. Test Current: Max. steady state Current. After recovering 4~5h under 252C, the rated zero power resistance value RN shall be measured.
Load Life (Endurance) Testing	No visible mechanical damage. RN / RN 20% (R = \| RN-RN' \| )	Ambient temp. Range:25C2C; Max. steady state Current/ 1,00024h. After recovering 4~5 h under 252C, the rated zero power resistance value RN' shall be measured.
Humidity Testing	No visible mechanical damage. RN /RN 20% (R = \| RN-RN' \| )	Ambient temp. range : 40C2C, R.H.:933% , Energized time:100024 h. After recovering 4~5 h under 252C, the rated zero power resistance value RN' shall be measured.

Mechanical Characteristics

Item	Specification	Test Conditions & Methods
Solder-ability	The terminals shall be uniformly tinned, and its area95%	Dipping the NTC terminals to a depth of 15mm in a soldering bath of 240-245C and to the place of 6mm far from NTC body for 2-3s (See IEC68-2-20 /GB2423.28 Ta )
Resistance To Soldering Heat	No visible mechanical damage. R/RN 20% (R = \| RN-RN' \| )	Dipping the NTC terminals to a depth of 15mm in a soldering bath of 265+5C and to the place for 6mm below from NTC body for 10+1s.After recovering 4-5h under 25+2C. The rated zero power resistance value RN' shall be measured. (See IEC68-2-20 /GB2423.28 Tb)
Strength of lead terminal	No break out R/RN 20% (R = \| RN-RN' \| )	Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec, Hold body and apply a force to each lead until 90slowly at 5N in the direction of lead axis and then keep for 10sec, and do this in the opposite direction repeat for other terminal. After recovering 4~5h under 25+2C, the rated zero power resistance value RN shall be measured. (See IEC68-2-21/GB2423.29 Ua / Ub)