The resistance of PTCs rises as the temperature rises. With this feature, the value change of resistance is not obvious when the safe current passes, the resistance value changes drastically when abnormal current passes, this reaches the purpose of limiting abnormal current, the resistance value will “reset” automatically when the abnormality is eliminated and temperature returns to a safe level. It is an ideal choice for equipment with frequent abnormal over-current flowing area. PPTC often used in consumer electronics, power lines, telecommunications, I/O connectors, process control and medical equipment.

Specifications

● Certification: RoHS

● Packaging: in reel

● Smaller size saves board space and cost

● Resettable circuit protection

● Fast time-to-trip

● Low resistance

● Surface mount packaging for automated assembly

● Lead-free and compliant with the European Union RoHS Directive 2002/95/EC

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Test	Test Conditions	Accept/Reject Criteria
Resistance	In still air at 25℃	Ri_min≤R≤R1_max
Time to Trip	Specified current，V_max，25℃	T≤_Maximum Time to Trip
Hold Current	30min，at IH ，25℃	No trip
Trip Cycle Life	V_max，I_max，100 cycles	No arcing or burning
Trip Endurance	V_max，1 hour	No arcing or burning

Test	Conditions	Resistance change
Passive aging	85℃,1000hours	±10%
Humidity aging	85℃/85%RH.1000 hours	±5%
Thermal shock	MIL-STD-202,Method 107G +85℃/-40℃,20times	-30% typical resistance change
Resistance to solvent	MIL-STD-202,Method 215	no change
Vibration	ML-STD-883C,Test Condition A	No chage

Model	Dimensions（mm）
Model	A(min)	A(max)	B(max)	B(max)	C(min)	C(max)	D(min)	E(min)
SMD2920-030-60V	6.73	7.98	4.80	5.44	0.60	1.15	0.30	0.15
SMD2920-050-60V	6.73	7.98	4.80	5.44	0.60	1.15	0.30	0.15
SMD2920-075-33V	6.73	7.98	4.80	5.44	0.60	1.15	0.30	0.15
SMD2920-100-33V	6.73	7.98	4.80	5.44	0.60	1.00	0.30	0.15
SMD2920-125-33V	6.73	7.98	4.80	5.44	0.60	1.00	0.30	0.15
SMD2920-150-33V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.15
SMD2920-185-33V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.15
SMD2920-200-16V	6.73	7.98	4.80	5.44	0.40	0.80	0.30	0.15
SMD2920-200-24V	6.73	7.98	4.80	5.44	0.60	1.00	0.30	0.15
SMD2920-250-16V	6.73	7.98	4.80	5.44	0.40	0.80	0.30	0.15
SMD2920-260-16V	6.73	7.98	4.80	5.44	0.40	0.80	0.30	0.15
SMD2920-300-6V	6.73	7.98	4.80	5.44	0.40	0.80	0.30	0.15
SMD2920-300-16V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.15

Name	Vmax (dc)	Imax (A)	Ihold @ 25℃ (A)	Itrip @ 25℃ (A)	Pd Max (W)	Max Time to trip Current (A)	Max Time to trip Time (Sec)	Resistance Rmin (Ω)	Resistance R1max(Ω)
SMD2920-030 -60V	60	100	0.3	0.6	1.5	1.5	3	0.6	4.8
SMD2920-050 -60V	60	100	0.5	1	1.5	2.5	4	0.18	1.4
SMD2920-075 -33V	33	100	0.75	1.5	1.5	8	0.3	0.1	1
SMD2920-100 -33V	33	100	1.1	2.2	1.5	8	0.5	0.065	0.41
SMD2920-125 -33V	33	40	1.25	2.5	1.5	8	2	0.05	0.25
SMD2920-150 -33V	33	40	1.5	3	1.5	8	2	0.035	0.23
SMD2920-185 -16V	16	100	1.85	3.7	1.5	8	2.5	0.03	0.15
SMD2920-185-33V	33	100	1.85	3.7	1.5	8	2.5	0.03	0.15
SMD2920-200-16V	16	100	2	4	1.5	8	4.5	0.02	0.12
SMD2920-200-24V	24	100	2	4	1.5	8	4.5	0.02	0.12
SMD2920-250-16V	16	100	2.5	5	1.5	8	16	0.02	0.085
SMD2920-300-6V	6	40	3	6	1.5	8	20	0.012	0.048
SMD2920-300-16V	16	100	3	6	1.5	8	20	0.012	0.048
SMD2920-400-12V	12	100	4	8	1.5	20	4	0.012	0.045
SMD2920-050-72V	72	40	0.5	1	1.5	2.5	4	0.2	1.6
SMD2920-125-16V	16	40	1.25	2.5	1.5	8	2	0.05	0.25
SMD2920-200-30V	30	40	2	4	1.5	8	4.5	0.02	0.13
SMD2920-300-24V	24	40	3	6	1.5	8	20	0.012	0.056

Device	F	G	H
Device	Normal Value	Normal Value	Normal Value
2920 Series	2.3	5.1	5.6

2920 Series PTC Resettable Fuse SMD

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