BRAND: All SETsafe | SETfuse products are derived from SETsafe | SETfuse’s own brand “SETsafe | SETfuse”
CUSTOMIZATION: Customers can customize Products, Technical Specifications and Circuit Protection Solutions at SETsafe | SETfuse (subject to communication between the two parties)
UPDATE: The information on SETsafe | SETfuse’s official website is the latest version, so feel free to purchase
All SETsafe | SETfuse products are derived from SETsafe | SETfuse’s own brand “SETsafe | SETfuse”.
CUSTOMIZATION:
Customers can customize Products, Technical Specifications and Circuit Protection Solutions at SETsafe | SETfuse (subject to communication between the two parties).
UPDATE:
The information on SETsafe | SETfuse’s official website is the latest version, so feel free to purchase.
Thermal-Link & Fusing Resistor (TRXF) is an unique type of Power Resistor, with Over Temp. and Over Current Protections. The Alloy Thermal-Link (ATCO) is built in the core of Fusible Wirewound Resistor (RXF) and in series with RXF.
SETsafe | SETfuse TRXF has the same physical size as ordinary RXF as well as large fault current protection. Besides, TRXF can effectively solve the hidden danger of continuous abnormal heat that ordinary RXF may cause when small fault current happens.
RXF
Fusible Wirewound Resistor
A power resistor which is made by winding a resistive element on a ceramic core, and the core is coated by insulation coating. It intends to interrupt a current flow at a predetermined time when the current exceeds a predetermined value. Fusible Wirewound Resistor is disposable fuse elements and is non-recoverable.
— (SETsafe | SETfuse Standards)
ATCO
Alloy Thermal-Link
Alloy Type Thermal-Link, Alloy is the thermal element.
— (GB/T 9816.3)
R
Rated Resistance
Resistance value for which the resistor has been designed, and which is generally used for denomination of the resistor.
— (IEC 60115-1)
P0
Actual Power
The Max. power of TRXF can be used within the allowable operating Temp. range.
— (SETsafe | SETfuse Standards)
IN
Rated Current
— (SETsafe | SETfuse Standards)
UN
Rated Voltage
The d.c. or a.c. r.m.s. voltage calculated from the square root of the product of the rated resistance and the rated dissipation.
— (IEC 60115-1)
Tf
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.
— (IEC 60691)
Tolerance: Tf °C (GB/T 9816, EN 60691, K60691).
Tolerance: Tf ± 7 °C (J60691).
Fusing Temp.
The temperature of the Alloy Thermal-Link which causes it to change its state of conductivity is measured with silicone oil bath in which the temperature is increased at the rate of 0.5 °C to 1 °C / minute, with a detection current up to 10 mA as the only load.
TCR
Temp. Coefficient of Resistance
Relative variation of resistance between two given temp. divided by the difference in the temp. producing it.
— (IEC 60115-1)
Through Hole
Axial, Radial
● Power Supply
● General Lighting
● Power Strip
● Personal Care Application
● Smart Home
● Security & Protection
View Product Structure, Principle, Application Video
SETsafe | SETfuse Quality Policy
Provide Industry-Leading Products
Raw-materials Supplier
Select critical raw materials: Must be from a manufacturer with quality management system (ISO9001, IATF16949) certification.
Formulate corresponding incoming inspection specifications (01-QA-06-xxx) for each key material according to design data such as material technical indicators.
Testing Equipment and Tools
Projector, Resistance meter, Tool Microscope, Salt Spray Tester, Universal Material Testing Machine, Spectrum Analyzer, etc.
Manufacturing Process
Online Inspection and Testing (Function 100% Automatic Testing).
Document
Process Flow Chart.
Failure Mode and Effects Analysis (FMEA).
Quality Control Flow Chart (QCFC).
Standard Inspection Procedure (SIP).
Work Instruction (WI).
Online Testing and Inspection
Resistance test system (100% Automatic Testing).
100% Visual Inspection.
etc.
IPQC(In Process Quality Control) Inspection
AQL(MIL-STD-105E), Dimensions Inspection, Function Test, Visual Inspection.
Including 26 items of Appearance Requirements, Electrical Performance, Mechanical Performance, Soldering Performance, Environmental Test and Life Test.e.g.
1. If product TCR is not less than 350 (10-6/°C), the measured resistance value shall be corrected as the relative resistance valueunder 25 °C according to TCR formula.
2. Resistance Measurement (4-terminal test)
Replacement
As TRXF is a non-resettable product, for safety sake, please use the same type of TRXF for replacement.
Usage
1. Do not touch the resistor body or pins directly when power is on, to avoid burn or electric shock.
2. When air pressure is from 80 kPa to 106 kPa, the relative altitude shall be +2000 m to - 500 m.
Storage
1. Please store TRXF with ambient temp. 10 °C ~ 30 °C and relative humidity 30% ~ 75%.
2. Do not store the TRXF at the high temperature, high humidity or corrosive gas environment, avoid influencing the solderability ofthe pins, please use them up within 1 year after receiving the goods.
Soldering Parameters
Wave Soldering Parameters (For Reference Only)
The Wave Soldering Parameters are for reference only, before TRXF is for practice usage, relative validation is recommended.
Over Temperature Protection（85）
Over Voltage Protection（232）
Over Current Protection（58）
Active Protection（18）
Accessories（3）
