Description Alloy Thermal-Link / Alloy Thermal Cutoff (ATCO) is defined as a non-resettable protective device functioning one time only. It is widely used in electrical equipment. ATCO is mainly consist of fusible alloy, flux resin, case, sealant and lead wires. Normally, fusible alloy is jointed to the two lead temp. of ATCO, the fusible alloy melts and quickly retracts to the two lead wire ends with the aid of the flux resin and disconnects the circuit completely. Transparent Plastic Case Surge Protective Devices Switched-Mode Power Supplies High Accuracy of Functioning Temp. RoHS & REACH Compliant Other Temp. The Length of Lead Wires Taping Packing Available Lead Wires can be Insulated +86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2.0 wires. Under abnormal conditions, when the te

Structure Diagrams Fusible Alloy Flux Resin Case Sealant Epoxy Lead Wire Before Functioning After Functioning Marking Trademark Model Rated Functioning Temp. RoHS & REACH Rated Current +86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] Date Code Rated Voltage All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2.0

Part Numbering System ATCO - SD 115 - A N N A B - 001 Other Options Packing B: Bulk T: Taping Leads Forming A: Straight Lead B: Single Lead Bending C: Leads Bending D: Leads Kinking E: Leads Bending and Kinking Color of Insulation Tube W: White Y: Yellow N: None Insulation Tube Material T: Teflon P: Polyester N: None Lead Wire Type A: Tinned Copper Wire Rated Functioning Temp. 115: 115 °C, See Specifications Series SD Product Category ATCO Leads Forming Types The below leads forming is for reference, more leads forming can be customized. Straight Lead Single Lead Bending Leads Bending Leads Kinking...

Glossary Item Description Thermal-Link A non-resettable device incorporating a THERMAL ELEMENT which will open a circuit once only when exposed for a sufficient length of time to a temperature in excess of that for which it has been designed. Alloy Thermal-Link Alloy Type Thermal-Link, Alloy is the thermal element. Rated Functioning Temp. The temperature of the Alloy Thermal-Link which causes it to change the state of conductivity with a detection current up to 10 mA as the only load. Tolerance: Tf Tolerance: Tf ± 7 °C (J60691). Fusing Temp. Fusing Temp. The temperature of the Alloy Thermal-Link...

Specifications Model Fusing Temp. RoHS, REACH Note： "●"Means certificated. "○"Means non-certificated. +86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-202

Product Temp.-Time Curve (Reference) The Temp.-Time Curve of Thermal-Link in different temp. oil bath. Product Current-Time Curve (Reference) The Current-Time Curve shows functioning time at multi-times rated current at room temperature 25 ± 2 °C. +86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] All Rights Reserved by Xiamen SET Electronics

Packaging Information Bulk +86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2

+86 592-5715-838 www.SETsafe.com www.SETfuse.com E-mail : [email protected] All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023

ATTENTION Usage 1. When atmosphere pressure is from 80 kPa to 106 kPa, the related altitude shall be from 2000 meter to - 500 meter. 2. Operating voltage less than rated voltage of ATCO, operating current less than rated current of ATCO. 3. Do not touch the ATCO body or lead wires directly when power is on, to avoid burn or electric shock. Replace ATCO is a non-repairable product. For safety sake, it shall be replaced by an equivalent ATCO from the same manufacturer, and mounted in the same way. Storage Do not store the ATCO at the high temp., high humidity or corrosive gas environment, avoid...

Mechanical Connection Riveting 1. Choose small resistivity riveting material and be riveted. 2. A flexible lead or lead with low resistance should be used to rivet the ATCO. Soldering Hand-Soldering 1. Soldering should be carried out according to Table SD-1. 2. The thermal element of ATCO is fusible alloy with low melting point, which is jointed with ATCO lead wires. Improper soldering operation (too high soldering temp. , too long soldering time, too short lead wire etc.) may transfer more heat to the thermal element and ATCO may open in advance. 3. When soldering conditions are more severe...

TABLE SD-2 Wave Soldering Parameters Setting Max. Allowable Preheating Temp. When the Length of Lead Wire is Different (Fig.SD-1) Ls Preheating Ls Preheating Length Temp. Length Temp. Preheating Max. Dwelling Time Wave Time (t1) Soldering (t2) Temp. Recommend Hand-Soldering Max. Wave Soldering Temp. Preheating Temp. Dwelling Time Lead Wire Forming 1. If lead wire has to be bent, please pay attention to the distance between body and bending point. Refer to Table SD-3. ATCO Body 2. When bending leads, please use pincher or similar tools to fix the product as shown in Fig.SD-2, to avoid damaging...