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10.1x3.1mm 4012 Time Delay Surface Mount Fuse 1A 600VAC 350VDC High Voltage Explosion Proof

Aolittel Technology Co.,Ltd

City: dongguan



Contact Person:MrEric View Contact Details

10.1x3.1mm 4012 Time Delay Surface Mount Fuse 1A 600VAC 350VDC High Voltage Explosion Proof

Model Number : CQ40LT

Certification : UL,CUL

MOQ : 1000PCS

Price : Negotiable

Payment Terms : T/T, Western Union, MoneyGram

Supply Ability : 2KKPCS Per Month

Delivery Time : 2 Weeks

Packaging Details : 1000 pcs/reel

Name : Surface Mount Fuse

Dimension : 10.1mmx 3.1mm (4012)

Speed : Time-Lag

Explosion proof : Good

Current range : 1A-40A

Voltage AC : 600V

Voltage DC : 350V

Packaging : Tape in reel

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High Voltage Explosion Proof 10.1x3.1mm 4012 Time Delay Surface Mount Fuse 1A 600VAC 350VDC

AOLITTEL NANO² SMD fuse is ideal for use in Datacom and telecom equipment

The Littelfuse 463 series NANO² fuse is a fast-acting, very high current fuse designed for high operating current applications. It offers enhanced thermal cycling endurance (up to 500 cycles). Its low temperature rise and excellent temperature stability characteristics make it ideal for use in Datacom and telecom equipment like high-end servers, base stations, power supplies, and blade computing applications. The 463 series offers high-amp circuit protection, ultra-high interrupting ratings (up to 500 A at 72 VDC), and a compact (10.1 mm x 3.12 mm x 3.12 mm) surface-mount form factor to save board space.

Features & Benefits

High current rating (15 – 30 A) with higher voltage up to 100 VDC
Enhanced thermal cycling endurance
High melting i2t
Surface-mount fuse in a small footprint
Operating temperature range from -55°C to 125°C
Enables blade servers operating at higher power
Provides higher reliability in harsh thermal cycling conditions
Prevents nuisance tripping caused by transient surge during blade server hot swapping
Allows for greater flexibility in fuse placement on slim blade server boards
Ensures robust performance and reliable protection in ultra-high ambient temperature working environments

Materials & Dimension

Construction Body Material: Ceramic
Termination Material: Silver(Ag),Nickel(Ni),Tin(Sn)
Fuse Element: Silver(Ag)

Recommended Land Pattern--Reflow Solder


L2 L1 W
1-40A 6.1 3.25 3.43

Part Numbering

Part number system

CQ40LT 001

CQ40LT -- Series

001 -- AMP Code (Refer to below table )

PN Ampere
[ In ]
( V )
Cold Ohms
Melting I t
A Sec
CQ40LT001 1A



0.8500 0.5800
CQ40LT002 2A 0.4000 1.1100
CQ40LT020 20A 0.0060 32.630
CQ40LT030 30A 0.0030 136.89
CQ40LT040 40A 0.0014 547.10

Electrical Characteristic

Rated current 1 In 2 In 3 In 8 In
Min. Min. Max. Max. Max.
1-40A 4 hour 1sec 60 sec 3 sec 0.1 sec

Environmental Temperature at 25°C


High end servers / Blade computing

Base station power supply

Voltage regulator module

Cooling fan system for PC Server

Advance Telecommunication Computing Architecture (ATCA) applications for cloud computing

Battery Management System (Industrial Tools)

Interrupting Rating

1A~30A :

150 amperes at 350V DC
150 amperes at 600V AC

600 amperes at 60V DC

40A: 600 amperes at 60V DC

Soldering Method

*Reflow Soldering : 260°C, 30Sec. max.
*Wave Soldering : 260°C, 10Sec. max.
*Hand Soldering : 350°C, 3Sec. max.

Tape and Reel Specification

Tape & Reel Quantity: 1000PCS/Reel

Product Characteristics


Body : Ceramic

Ceramic Cap : Silver Plated Brass

Insulation Resistance (after Opening) MIL-STD-202, Method 302, Test Condition A (10,000 ohms, Minimum)

Solderability MIL-STD-202, Method 208

Resistance to Soldering Heat MIL-STD-202, Method 210, Test Condition B (10 sec at 260°C) PCB Recommendation for Thermal Management Min. copper layer thickness = 100µm

Minimum copper trace width = 10mm

Alternate methods of thermal management may be used. In such cases, under normal operations, the maximum temperature of the fuse body should not exceed 80°C in a 25°C environment.

Operating Temperature –55ºC to 125ºC with proper derating

Product Tags:

surface mount resettable fuse


surface mount thermal fuse

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