Radial Lead PPTC Resettable Fuse

Model NO.: LB050LVF series Type: Resettable Fuse Shape: Tablet Trademark: songshan HS Code: 85361000 Breaking Capacity: Low Usaga: Low Voltage Fusing Device: Pop-up Solid Origin: Shanghai, China Product description:Shanghai Songshan company pinch PPTC products are the most species,electrical properties of the widest selection of a class of over-current protection products.It can be communication, home appliances, industrial control, fax machines, printers, computer motherboards, USB, transformers and other areas of over-current protection to provide the appropriate protection program.The product family is named according to the withstand voltage rating,product electrical performance covers 6V to 265V, 0.03 ~ 10A applications.It can meet the IEEE-1394 and AEC Q200 and other industry standards also can  provide to meet the minimum to -40 degrees, up to 125 degrees of environmental requirements of PPTC,personalized product size and electrical performance specifications designed to meet different customer requirements.
 
LB050LVFseries
 
 
 

Polymer PTC Re-settable Fuse Series

Features                                                                Customized size and electrical characteristic available Surface mount packaging for automated assembly Radial-leaded devices for wave-soldering or manually assembly Fast tripping resettable circuit protection Product Dimensions For Radial-leaded Devices                                              
Unit: mm
 

Part number	Dimension
	A	B	C	D	E	Figures for
	Max.	Max.	Max.	Min.	Min.	Dimension
LB050LVF	8.3	10.7	5.1	7.6	3.8	Fig.3
LB080LVF	8.3	10.7	5.1	7.6	3.8	Fig.3
LB250LVSF	12.8	13.2	5.1	7.6	3.8	Fig.5
LB550LVF	11.5	19.5	5.1	7.6	3.8	Fig.5
LB800LVF	15.5	22.5	5.1	7.6	3.8	Fig.5
LB1000LVF	18.7	24.4	10.2	7.6	3.8	Fig.3

   
                              


Thermal Derating Chart-IH(A)                                          

Part number	Hold current
	-40ºC	-20ºC	0ºC	25ºC	40ºC	50ºC	60ºC	70ºC	85ºC
LB050LVF	0.08	0.07	0.06	0.05	0.04	0.03	0.03	0.02	0.01
LB080LVF	0.12	0.12	0.10	0.08	0.06	0.05	0.04	0.04	0.02
LB250LVSF	0.40	0.37	0.31	0.25	0.20	0.17	0.15	0.12	0.08
LB550LVF	0.93	0.82	0.69	0.55	0.47	0.41	0.36	0.30	0.23
LB800LVF	1.45	1.24	1.00	0.80	0.65	0.58	0.52	0.45	0.38
LB1000LVF	1.60	1.42	1.23	1.00	0.78	0.69	0.61	0.54	0.42

   
Electrical Characteristics at 25ºC                                      

Part number	IH	IT	Vmax	Imax	Max. Time-to-trip		Pd typ	Rmin	R1max	Figures for
	(A)	(A)	(V)	(A)	(A)	(S)	(W)	(Ω)	(Ω)	Dimension
LB050LVF	0.05	0.12	265	1.0	0.25	15.0	-	18.50	65.00	Fig.3
LB080LVF	0.08	0.19	265	1.2	0.40	15.0	-	7.40	26.00	Fig.3
LB250LVSF	0.25	0.56	265	3.5	1.25	18.5	-	1.30	3.80	Fig.5
LB550LVF	0.55	1.25	265	7.0	2.75	26.0	-	0.45	1.45	Fig.5
LB800LVF	0.80	1.80	265	10.0	4.00	40.0	-	0.30	1.32	Fig.5
LB1000LVF	1.00	2.00	265	10.0	5.00	21.0	-	0.22	0.58	Fig.3

 
IH=Hold current: maximum current at which the device will not trip at 25ºC still air.
IT=Trip current: minimum current at which the device will always trip at 25ºC still air.
Vmax=Maximum voltage device can withstand without damage at rated current.
Imax=Maximum fault current device can withstand without damage at rated voltage.
Ttrip=Maximum time to trip at assigned current.
Pdtyp=Typical power dissipation: typical amount of power dissipated by the device when in state air environment.
Rmin=Minimum device resistance at 25ºC prior to tripping.
R1max=Maximum device resistance measured after 1 hour post one-time trip.

Part Numbering System                                                       
 

Product series

Hold Current

xxx-

Other necessary information

*

 
 
 

Test Procedures And Requirements                                                 
 

Test	Test Conditions	Accept/Reject Criteria
Resistance	In still air @ 25ºC	Rmin≤R≤Rmax
Time to Trip	Specified current, Vmax, 25ºC	T≤maximum Time to Trip
Hold Current	30min, at IH	No trip
Trip Cycle Life	Vmax, Imax, 100cycles	No arcing or burning
Trip Endurance	Vmax, 24hours	No arcing or burning

 
 
Application Requirements                                                            
Soldering recommendation:
* Methods: IR, Vapor phase oven, hot air oven, wave solder, soldering temperature should not exceed GB-T2423 request.
* Devices can be cleaned using standard industry methods and solvents.
Notes:
If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.
Storage:
The maximum ambient temperature shall not exceed 40ºC. Storage temperatures higher than 40ºC could result in the deformation of packaging materials. The maximum relative humidity recommended for storage is 70%. High humidity with high temperature can accelerate the oxidation of the solder plating on the termination and reduce the solderability of the components. Sealed plastic bags with desiccant shall be used to reduce the oxidation of the termination and shall only be opened prior to use. The products shall not be stored in areas where harmful gases containing sulfur or chlorine are present.
Warning:
PPTC devices are intended for protection against occasional over-current or over-temperature fault conditions, and should not be used when repeated fault conditions are anticipated. Operation beyond maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
Notes:
The specification is intended to present application, product and technical data to assist the user in selecting PPTC circuit production devices. However, users should independently evaluate and test the suitability of each product. Wayon makes no warranties as to the accuracy or completeness of the information and disclaims any liability resulting from its use. Wayon's only obligations are those in the Wayon Standard Terms and Conditions of Sale and in no case will Wayon be liable for any incidental, indirect, or consequential damages arising from the sale, resale, or misuse of its products. Wayon reserves the right to change or update, without notice, any information contained in this specification.

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