SMD2920 贴片自恢复保险丝 - 可恢复保险丝|自恢复保险丝

Features
■ Surface Mount Devices
■ Lead free device
■ Surface Mount packaging for automated
assembly
■ Agency recognition: UL

Applications
Almost anywhere there is a low voltage power
supply, up to 60V and a load to be protected,
including:
■ Computer mother board, Modem. USB hub
■ PDAs & Charger, Analog & digital line card
■ Digital cameras, Disk drivers, CD-ROMs,

Model	V _max (V dc)	I_max (A)	I _hold @25°C (A)	I _trip @25°C (A)	P_d Typ. (W)	Maximum Time To Trip		Resistance
Model	V _max (V dc)	I_max (A)	I _hold @25°C (A)	I _trip @25°C (A)	P_d Typ. (W)	Current (A)	Time (Sec)	R i _min (W)	R1max (W)
SMD2920-030SF	60	10	0.30	0.60	1.5	1.5	3.0	0.600	4.800
SMD2920-050SF	60	10	0.50	1.00	1.5	2.5	4.0	0.180	1.400
SMD2920-075SF	33	40	0.75	1.50	1.5	8.0	0.3	0.100	1.000
SMD2920-075SF60V	60	40	0.75	1.50	1.5	8.0	0.3	0.100	1.000
SMD2920-100SF	33	40	1.10	2.20	1.5	8.0	0.5	0.065	0.410
SMD2920-100SF60V	60	40	1.10	2.20	1.5	8.0	0.5	0.065	0.410
SMD2920-125SF	33	40	1.25	2.50	1.5	8.0	2.0	0.050	0.250
SMD2920-150SF	33	40	1.50	3.00	1.5	8.0	2.0	0.035	0.230
SMD2920-185SF	33	40	1.85	3.70	1.5	8.0	2.5	0.030	0.150
SMD2920-200SF	16	40	2.00	4.00	1.5	8.0	4.5	0.020	0.120
SMD2920-200SF24V	24	40	2.00	4.00	1.5	8.0	4.5	0.020	0.120
SMD2920-200SF33V	33	40	2.00	4.00	1.5	8.0	4.5	0.020	0.120
SMD2920-250SF	16	40	2.50	5.00	1.5	8.0	16.0	0.020	0.085
SMD2920-250SF24V	24	40	2.50	5.00	1.5	8.0	16.0	0.020	0.085
SMD2920-250SF33V	33	40	2.50	5.00	1.5	8.0	16.0	0.020	0.085
SMD2920-260SF	6	40	2.60	5.20	1.5	8.0	10.0	0.014	0.075
SMD2920-260SF16V	16	40	2.60	5.20	1.5	8.0	10.0	0.014	0.075
SMD2920-260SF24V	24	40	2.60	5.20	1.5	8.0	10.0	0.014	0.075
SMD2920-300SF	6	40	3.00	6.00	1.5	8.0	20.0	0.012	0.048
SMD2920-300SF16v	16	40	3.00	6.00	1.5	8.0	20.0	0.012	0.048
SMD2920-300SF24v	24	40	3.00	6.00	1.5	8.0	20.0	0.012	0.048
SMD2920-300SF30v	30	40	3.00	6.00	1.5	8.0	20.0	0.012	0.048
SMD2920-400SF	6	40	4.00	8.00	1.5	20.0	4.0	0.008	0.040
SMD2920-400SF16V	16	40	4.00	8.00	1.5	20.0	4.0	0.008	0.040
SMD2920-400SF24V	24	40	4.00	8.00	1.5	20.0	4.0	0.008	0.040
SMD2920-500SF	6	40	5.00	10.00	1.5	25.0	5.0	0.005	0.031
SMD2920-500SF12V	12	40	5.00	10.00	1.5	25.0	5.0	0.005	0.031
SMD2920-500SF16V	16	40	5.00	10.00	1.5	25.0	5.0	0.005	0.031
SMD2920-500SF24V	24	40	5.00	10.00	1.5	25.0	5.0	0.005	0.031
SMD2920-600SF	6	40	6.00	12.00	1.5	25.0	6.0	0.004	0.020
SMD2920-600SF12v	12	40	6.00	12.00	1.5	25.0	6.0	0.004	0.020
SMD2920-700SF	6	40	7.00	14.00	1.5	25.0	6.0	0.0025	0.010
SMD2920-700SF12v	12	40	7.00	14.00	1.5	25.0	6.0	0.0025	0.010

Ihold = Hold Current. Maximum current device will not trip in 25°C still air.

Itrip   = Trip Current. Minimum current at which the device will always trip in 25°C still air.
Vmax = Maximum operating voltage device can withstand without damage at rated current (Imax).
Imax  = Maximum fault current device can withstand without damage at rated voltage (Vmax).
Pd    = Maximum power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Rimin/max = Minimum/Maximum device resistance prior to tripping at 25°C.
R1max  = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.

Environmental Specifications

Test

Conditions

Resistance change

Passive aging

+85°C, 1000 hrs.

±5% typical

Humidity aging

+85°C, 85% R.H. , 168 hours

±5% typical

Thermal shock

+85°C to -40°C, 20 times

±33% typical

Resistance to solvent

MIL-STD-202,Method 215

No change

Vibration

MIL-STD-202,Method 201

No change

Ambient operating conditions : - 40 °C to 85 °C

Maximum surface temperature of the device in the tripped state is 125 °C

AGENCY APPROVALS :

U.L approved

Recommended Hold Current(A) at Ambient Temperature(°C)

Model	Ambient Operation Temperature
Model	-40°C	-20°C	0°C	25°C	40°C	50°C	60°C	70°C	85°C
SMD2920-030SF	0.45	0.40	0.35	0.30	0.25	0.23	0.20	0.17	0.14
SMD2920-050SF	0.76	0.67	0.59	0.50	0.42	0.38	0.33	0.29	0.23
SMD2920-075SF	1.13	1.01	0.88	0.75	0.62	0.56	0.50	0.44	0.34
SMD2920-100SF	1.66	1.47	1.29	1.10	0.91	0.83	0.73	0.64	0.50
SMD2920-125SF	1.89	1.68	1.46	1.25	1.04	0.94	0.83	0.73	0.56
SMD2920-150SF	2.27	2.01	1.76	1.50	1.25	1.13	1.00	0.87	0.74
SMD2920-185SF	2.80	2.47	2.17	1.85	1.54	1.39	1.22	1.07	0.85
SMD2920-200SF	3.02	2.68	2.34	2.00	1.66	1.50	1.32	1.16	0.90
SMD2920-250SF	3.78	3.35	2.93	2.50	2.08	1.88	1.65	1.45	1.13
SMD2920-260SF	3.64	3.25	2.91	2.60	2.26	2.08	1.95	1.74	1.13
SMD2920-300SF	4.53	4.02	3.51	3.00	2.52	2.26	1.99	1.75	1.34
SMD2920-400SF	6.04	5.36	4.68	4.00	3.36	3.01	2.65	2.33	1.79
SMD2920-500SF	7.55	6.70	5.85	5.00	4.20	3.77	3.32	2.92	2.23
SMD2920-600SF	8.60	7.70	6.80	6.00	4.95	4.60	4.06	3.65	3.15
SMD2920-700SF	10.03	8.98	7.93	7.00	5.77	5.36	4.73	4.26	3.68

Physical Dimensions(mm.)

Model	A		B		C		D	E
Model	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Min.
SMD2920-030SF	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.25
SMD2920-050SF	6.73	7.98	4.80	5.44	0.80	1.60	0.30	0.25
SMD2920-075SF	6.73	7.98	4.80	5.44	0.70	1.30	0.30	0.25
SMD2920-075SF60V	6.73	7.98	4.80	5.44	0.80	1.60	0.30	0.25
SMD2920-100SF	6.73	7.98	4.80	5.44	0.40	1.00	0.30	0.25
SMD2920-100SF60V	6.73	7.98	4.80	5.44	1.00	2.10	0.30	0.25
SMD2920-125SF	6.73	7.98	4.80	5.44	0.40	1.00	0.30	0.25
SMD2920-150SF	6.73	7.98	4.80	5.44	0.50	1.30	0.30	0.25
SMD2920-185SF	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-200SF	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-200SF24V	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-200SF33V	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-250SF	6.73	7.98	4.80	5.44	0.7	1.40	0.30	0.25
SMD2920-250SF24V	6.73	7.98	4.80	5.44	0.7	1.40	0.30	0.25
SMD2920-250SF33V	6.73	7.98	4.80	5.44	0.7	1.40	0.30	0.25
SMD2920-260SF	6.73	7.98	4.80	5.44	0.7	1.40	0.30	0.25
SMD2920-260SF16V	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-260SF24V	6.73	7.98	4.80	5.44	0.70	1.40	0.30	0.25
SMD2920-300SF	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.25
SMD2920-300SF16V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.25
SMD2920-300SF24V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.25
SMD2920-300SF30V	6.73	7.98	4.80	5.44	0.60	1.20	0.30	0.25
SMD2920-400SF	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-400SF16V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-400SF24V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-500SF	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-500SF12V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-500SF16V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-500SF24V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-600SF	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-600SF12V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-700SF	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25
SMD2920-700SF12V	6.73	7.98	4.80	5.44	1.00	1.60	0.30	0.25

Termination pad characteristics
Terminal pad materials： Tin-Plated Nickle-Copper or Gold-Plated Nickle-Copper
Terminal pad solderability： Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.
Rework
Use standard industry practices, the removal device must be replaced with a fresh one.

Thermal derating curve

Typical time-to-trip at 25°C

!WARNING
· Use PPTC beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
· PPTC are intended for protection against occasional over current or over temperature fault conditions and should not be used
when repeated fault conditions or prolonged trip events are anticipated.
· Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic,
thermal, andmechanical procedures for electronic components.
· Use PPTC with a large inductance in circuit will generate a circuit voltage (L di/dt) above the rated voltage of the PPTC.
· Avoid impact PPTC device its thermal expansion like placed under pressure or installed in limited space.
· Contamination of the PPTC material with certain silicon based oils or some aggressive solvents can adversely impact the
performance of thedevices. PPTC SMD can be cleaned by standard methods.
· Requests that customers comply with our recommended solder pad layouts and recommended reflow profile. Improper
board layouts or reflow profile could negatively impact solderability performance of our devices.

‧Recommended reflow methods：IR, vapor phase oven, hot air oven.
‧Devices are not designed to be wave soldered to the
bottom sideof the board.
‧Recommended maximum paste thickness is
0.25 mm (0.010 inch).
‧Devices can be cleaned using standard method
and solvents.
Note：If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.

Tape and reel specifications (mm)
Governing Specifications EIA 481-1

16.0± 0.3

4.0 ± 0.10

8.0 ± 0.10

2.0 ± 0.05

5.70 ± 0.10

8.00 ± 0.10

B1max.

12.1

1.5 + 0.1, -0

7.5 ± 0.05

1.75 ± 0.10

E2min.

14.25

0.6

T1max.

0.1

0.80±0.1

Leadermin.

390

Trailermin.

160

Reel Dimensions

A max.

178

N min.

16.4 ± 0.5

‧ Storage conditions：40°C max, 70% R.H.
‧ Devices may not meet specified performanc if storage conditions are exceeded.

Order information Packaging
SMD2920 050 SMD：surface mount device Current 0.5A Tape & Reel Quantity 2000 pcs/reel