This document provides information about fusible resistors produced by HTR-India. Fusible resistors are resistors designed to fuse or blow as a safety measure if subjected to abnormal voltage/current spikes or circuit malfunctions. HTR produces silicone or cement coated fusible resistors in power ratings from 1W to 5W and resistance ranges from 10R to 100R. The document describes the product specifications, electrical/environmental characteristics, mechanical specifications, applications, and ordering information for HTR's fusible resistor series.
This product is a type of Silicone Coated Resistors, which is a type of Wire Wound Resistors. Features of this product are: UL 1412 approved, Safety fusing at 220/240 V, Tailor made fusing options available. This products is consumable for Consumer, Telecommunication and Industrial Electronics.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/frs/
This product is a type of Silicone Coated Resistors, which is a type of Wire Wound Resistors. Features of this product are: UL 1412 approved, Safety fusing at 110/120 V. This products is consumable for Consumer, Telecommunication and Industrial Electronics.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hfw/
This product is a type of Ceramic Encased Resistor, which is a type of Wire Wound Resistors. Features of this product are: Choice of fibre glass or ceramic core, Dual purpose HSVAU series is an useful inventory reducer for broad line distributor. This products is consumable for Both axial and space saving, Vertical Mounting Resistors, Consumer and Industrial applications.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hsvau/
This product is a type of Silicone Coated Resistors, which is a type of Wire Wound Resistors. Features of this product are: UL 1412 approved, Safety fusing at 220/240 V, Tailor made fusing options available. This products is consumable for Consumer, Telecommunication and Industrial Electronics.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/frs/
This product is a type of Silicone Coated Resistors, which is a type of Wire Wound Resistors. Features of this product are: UL 1412 approved, Safety fusing at 110/120 V. This products is consumable for Consumer, Telecommunication and Industrial Electronics.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hfw/
This product is a type of Ceramic Encased Resistor, which is a type of Wire Wound Resistors. Features of this product are: Choice of fibre glass or ceramic core, Dual purpose HSVAU series is an useful inventory reducer for broad line distributor. This products is consumable for Both axial and space saving, Vertical Mounting Resistors, Consumer and Industrial applications.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hsvau/
This product is a type of Ceramic Encased Resistor, which is a type of Wire Wound Resistors. Features of this product are: Choice of fibre glass or ceramic core, Choice of mounting pillars for additional stability, Non inductive type available. This products is consumable for Space saving, Vertical Mounting Resistors, Consumer and Industrial applications.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hsv/
HRW - WIREWOUND, LOW OHM CURRENT SENSE SURFACE MOUNT POWER RESISTORShtrindia
• Wire wound and alloy ribbon
element options.
• Moulded resistor construction.
• Tape and reel packing for pick & place machine.
• Fusible type available.
• Non inductive type available.
This product is a type of Ceramic Encased Resistor, which is a type of Wire Wound Resistors. Features of this product are: Choice of fibre glass or ceramic core, Choice of mounting pillars for additional stability, Non inductive type available. This products is consumable for Space saving, Vertical Mounting Resistors, Consumer and Industrial applications.
For more information of this product, please copy & paste the url given below:
http://htr-india.com/product/hsv/
HRW - WIREWOUND, LOW OHM CURRENT SENSE SURFACE MOUNT POWER RESISTORShtrindia
• Wire wound and alloy ribbon
element options.
• Moulded resistor construction.
• Tape and reel packing for pick & place machine.
• Fusible type available.
• Non inductive type available.
Corporate Presentation of Kinetic Gears which was established in 1980 as SSI Unit, Kinetic Gears is an ISO 9001:2015 certified organisation since 1999 & at present it’s a family-owned business. The unit is an approved supplier in Automobile, Textiles, Coal, Steel, Power, Defense & Aviation Sector.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Corporate Presentation of Kinetic Gears which was established in 1980 as SSI Unit, Kinetic Gears is an ISO 9001:2015 certified organisation since 1999 & at present it’s a family-owned business. The unit is an approved supplier in Automobile, Textiles, Coal, Steel, Power, Defense & Aviation Sector.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
Laghu Udyog Bharati is one of India’s largest MSE Industry Networks in India, with branches in every state and members in every district of India, working towards the welfare of MSEs in India. We have grass-root level insights into the challenges faced by the MSEs as well as changing industry trends & practices on the ground.
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1. www.htr-india.com
Alloy Resistance Wire, Wound
to Specific
Parameters On High
Thermal Conductivity
Ceramic Core
FUSIBLE RESISTORS
SILICONE / CEMENT COATED
HFW
SERIES
FUSIBLE RESISTORS
• Flame Retardant Silicone Coated
•Safety Version
UL approved
Flame Retardant
Thermocoat
• 1W to 5W
• 10R to 100R
All Welded Cap
And Lead Assembly
UL RECOGNIZED
As per UL 1412 Fusing Resistors and Temperature-Limited Resistors
UL file # E 342534
In order to meet the growing demand worldwide
for resistors to fuse or blow as a safety measure,
HTR can provide fusible resistors which fuse
or blow if they are subjected to an abnormal
spike of voltage / current or in the event of
malfunction of the circuit.
e : info@htr-india.com
2. www.htr-india.com
PHYSICAL CONFIGURATION
FUSIBLE
RESISTORS
SILICONE /
CEMENT
COATED
HFW
HTR
TYPE
POWER
RATING
at 40°C
(Ambient)
DIMENSIONS (mm)
*
L
(max)
D
(max)
l
±1.5
RESISTANCE
RANGE
d
±0.05
min
max
TYPICAL
WEIGHT
PER PC
(gms)
F1W*
1W
6.75
4.50
38
0.8 10R 100R 0.60
HF1W*
1W
9.5
4.5
38
0.8 10R 100R
HF2W*
2W
9.2
3.6
38
0.8 10R 100R 0.55
2W
11.5
4.5
38
0.8 10R 100R 0.75
2W (700C)
14.5
6.0
38
0.8 10R 100R
1.2
HF3W*+
3W
11.5
5.5
38
0.8 10R 100R
1.1
+
F2W*
DF2W*
F3W*
0.7
3W
15.5
6.0
38
0.8 10R 100R
1.4
HF4W*+
4W
16.0
6.0
38
0.8 10R 100R
1.4
HF5W*+
5W
16.8
7.5
38
0.8 10R 100R
1.8
5W
15.7
5.9
38
0.8 10R 100R 1.35
F5W*
* Coating overflow on each lead not to exceed half of ‘D’.
• Resistance values below the minimum range can be supplied on request.
+ Certified to UL 1412
ELECTRICAL AND ENVIRONMENTAL
CHARACTERISTICS / DATA
PARAMETER/PERFORMANCE TEST & TEST METHOD
Power Rating (Rated Ambient Temperature)
to zero at +350°C - Refer Derating Curve above
PERFORMANCE REQUIREMENTS
Full Power dissipation at 40°C and linearly derated
Resistance Tolerances Available
±10% (K); ±5% (J); ±3% (H); ±2%(G); ±1% (F)
Temperature Range
-55°C to +350°C with suitable derating as per derating curve.
Voltage Rating / Limiting Voltage / Max. Working Voltage
V= PxR
Dielectric Withstanding Voltage / Voltage Proof
(based on limiting voltage x 2 for 60 secs)
∆R ± (1% + R05) - No flashover, mechanical
damage, arcing or insulation breakdown
Short Time Overload (5 x Rated Power for 5 secs)
∆R ± (2% + R05)
Temperature Co-efficient of Resistance
±60 ppm /°C for <10R - Average
± 90 ppm /°C or ± 30 ppm /°C for >10R depending on wire selected
Insulation Resistance >1000MΩ (Min)
Temperature Cycling
(Room temperature →-55°C → Room Temperature→
200°C → Room Temperature for 5 cycles)
∆R ± [2% + R05]
Damp Heat (Steady State)
(40°C at 93% R.H for 1000 hours - no load applicable)
∆R ± [≤5% + R05] - Average
Endurance - Load Life
(70°C with limiting voltage - 1.5 hours on /
0.5 hours off for 1000 hours)
∆R ± [≤5% + R05 ] - Average
Solvent Resistance
(IPA for 60 secs ±10 secs )
No effect on coating / marking
e : info@htr-india.com
3. www.htr-india.com
FUSIBLE
RESISTORS
SILICONE /
CEMENT
COATED
MECHANICAL SPECIFICATIONS
PARAMETER/PERFORMANCE TEST & TEST METHOD
PERFORMANCE REQUIREMENTS
Terminal Tensile Strength
Resistance To Soldering Heat (260°C - 270°C for 10 secs)
Solderability (As per IEC pub. 60068 - 2 - 20 Ta)
Marking
50 Newtons
∆R ± [0.5% + R05] - Typical
Must meet the requirements laid down
As per IEC Pub. 60062
HFW
Note : Contrary to popular belief, fusible resistors are not standard resistor types and each type of fusible resistor must be tailor designed
to suit a particular application.
TYPICAL APPLICATIONS
As mentioned previously, a fusible resistor is a tailormade dual purpose component –
a. In normal conditions it functions as a resistor.
b. In high overload / fault conditions it acts as a fuse / safety device.
ORDERING INFORMATION
THE HFW SERIES OF RESISTORS IS A SPECIAL “SAFETY VERSION” AVAILABLE IN RESISTANCE VALUES ≥10R
WHERE THE RESISTOR WILL FUSE INSTANTANEOUSLY WHEN MAINS VOLTAGE 110V / 120V IS APPLIED WITH NO FLAME OR EXPLOSION.
For resistance values <10R the fusing timing and suitability must be tested for each individual application.
Precautions to be taken : Before conducting this test, the voltage must be correctly set / adjusted by first using a dummy piece which
should then be discarded.
ORDERING INFORMATION
Series
Type
HFW
HF2W*
Packing
Resistance Value
Tolerance
Bulk HF2W*
Tape & Ammo HF2W*T
Tape & Reel HF2W*TR
15R
K
FOR EXAMPLE
1. For Tape & Ammo packing - HF2W*T
2. For Tape & Reel - HF2W*TR
NOTE: THE CUSTOMER IS STRONGLY ADVISED TO ASCERTAIN THE SUITABILITY OF THE RESISTOR FOR HIS
PARTICULAR APPLICATION BEFORE ORDERING IN BULK.
e : info@htr-india.com