2024-2026 Year Version.

HCO_SHP_SETsafe & SETfuse.pdf

Datasheet (PDF Document) Include: Specifications, Agency Approvals, Packaging, Structure Diagrams, Glossary, Part Numbering System, Installation, Usage, Replace, Storage and other information.

Xiamen SET Electronics Co., Ltd.

Heat CutOff (HCO) is a fuse that triggers action in the event of over-current or over-charge, also known as a three-terminal fuse. The body of the Heat CutOff (HCO) product is composed of Sealant Fusible Alloy, FH, Flux Resinn, Case and Epoxy.

Heat CutOff (HCO) is primarily used in the secondary protection scheme of lithium battery charging and discharging circuits. It involves adding a secondary protection element, Heat CutOff (HCO), to the primary protection circuit. During the charge and discharge process of lithium batteries, Heat CutOff (HCO) is triggered when over-current or over-charge occurs, thereby reducing the risk of fire or explosion. When the circuit current exceeds a certain threshold, the fusible alloy within the Heat CutOff (HCO) heats up and fuses, passively cutting off the protection circuit. Similarly, in the case of over-charging where the primary protection circuit IC or main circuit FET fails, the secondary protection IC activates the FET connected to Heat CutOff (HCO). The Heat CutOff (HCO) then turns on the heating resistor (Heater), generating heat to actively fuse the fusible alloy and disconnect the charge and discharge circuit, while simultaneously cutting off the Heater circuit. This dual protection mechanism provides safeguards against both over-current and over-charge situations.

The main features of the SETsafe | SETfuse Heat CutOff (HCO) product include a rated current of (30, 45) A, rated voltage of 100 VDC, and a range of operating voltage from 3.1 to 100.4 VDC. It carries UL, cUL, TUV approvals and is RoHS and REACH compliant.

Product Schematic

l  P1 ~ P2 Main Circuit（MC）

l  P1/P2 ~ P3 Control Circuit（CC）

● Surface Mount

● Overcurrent Protection

● Overcharging Protection

● Low Impedance, Low Power Consumption

● Controlled Fusing Time ≤ 60 s

● Non-Resettable 

● RoHS & REACH Compliant

Surface Mount

PCB Mount, Welding

You can download the 3D diagram of product structure to help you improve design efficiency to create more great products.

HCO_SHP series_3D_SETsafe & SETfuse.zip

● Electric Tool

● Storage Battery

● Portable Power Supply

● Electric Motorcycle

● Electric Bicycle 

● Household Energy Storage

ABSOLUTELY ASSURED USE WITH GLOBALIZATION CERTICATION

The following certificates (PDF Documents) are only used for browsing on the web to prove the product has been certified. If you need a full version certificate, Please contact: sales@SETfuse.com

UL (America)

Standards：UL 248-14

File No.：JFHR2.E 532248

UL_HCO_SHP_SETsafe & SETfuse.pdf

CUL (Canada)

Standards：CAN/CSA-C22.2 No.248.14-00

File No.：JFHR8.E 532248

cUL_HCO_SHP_SETsafe & SETfuse.pdf

TUV (Germany)

Standards：EN 60127-1: 2006+A1+A2 / EN 60127-7: 2016

File No.：J 50623147

TUV_HCO_SHP_SETsafe & SETfuse.pdf

For product quality, our goal is to be industry-leading. We ensure that the quality of the product meets the expected goals from the following process.

Quality Policy.

Qualified Supplier of Raw Materials.

Incoming Quality Control (IQC):

Acceptance Quality Limit (AQL), Dimension, Function, Visual Inspection, RoHS & REACH Test. etc..

Process:

Online Inspection and Function Test 100%, etc..

In Process Quality Cortrol (IPQC): AQL, Dimension, Function, Visual Inspection, etc..

Final Quality Control (FQC):

AQL, Dimension, Function, Visual Inspection, RoHS & REACH Test, etc..

Reliability Test:

AQL Sampling Test.

Outgoing Quality Control (OQC):

Packaging, Labeling, Quantity Inspection, etc..

Agency Information:

Safety Certificate Agency Annual, Quarterly Audits. Include UL, cUL, VDE, TUV, KC, PSE, CCC. etc..

Quality Management System:

TUV Approved and Issued Certificate.

SETsafe | SETfuse

SET