حفاظت مدار فیوز خودبازگشت (پی‌تی‌سی)

LITTELFUSE SRP420F

Manufacturer	Littelfuse
Mfr. Part Number	SRP420F
Electland Part Code	135866
Electland Part Number	NYE_SRP420F
Category	PTC Resettable Fuses
Description	Polymeric PTC Resettable Fuse 30V 4.2 A Ih User Defined Strap
Datasheet	Download

Product Attributes

Category	Circuit Protection PTC Resettable Fuses
type	Polymeric
Voltage - Max	30V
Current - Hold (Ih) (Max)	4.2 A
Current - Trip (It)	7.6 A
Current - Max	100A
Time to Trip	6 s
Resistance - Initial (Ri) (Min)	12 mOhms
Resistance - Post Trip (R1) (Max)	40mΩ
Operating Temperature	-40℃~+85℃
Mounting Type	User Defined
Package / Case	Strap
Size / Dimension	1.240" L x 0.522" W (31.50mm x 13.25mm)
Thickness (Max)	0.043" (1.10mm)
Resistance @ 25℃	12mΩ
Power Dissipation	2.9W
Hold Current	4.2A
Time to Trip(Max)	6s
Trip Current	7.6A
Packaging	Bulk
Tariff Active	True
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	1 (Unlimited)
ExportControlClassNumber	EAR99
HtsusCode	8533.40.8070
Weight	0.227g

Introduction

PolySwitch offers several material platforms to help protect battery applications. Each of these material platforms offers different performance characteristics that allow the engineer greater design flexibility. PolySwitch devices for battery protection include SRP, LR4, VTP, VLP, VLR, MXP and MGP series, disc and special - application strap devices.