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Walter Long Electrode Alloy Resistance HTC Series Selection Manual and Purchase Address: Click on the image to enter



Long electrode alloy resistors refer to resistors made of metal materials from long sided solder pads, which are also commonly referred to as wide electrode resistors or side electrode resistors in the market. Long electrode alloy resistors mainly play a role in current detection in circuits, collecting real-time current conditions at both ends of the resistor and feeding them back to the control IC. Therefore, this type of current detection resistor is also called current detection resistor or sampling resistor or sampling resistor in the application process, because its resistance value is below 1 Ω (ohm), it is also called milliohm alloy resistor or low resistance value resistor. Next, we will introduce the long electrode alloy resistance HTC series of Suzhou Walter from the aspects of product characteristics, product Naming convention, model selection, resistance range table and test performance.

 

The Suzhou Huade Electronic Walter Long Electrode Alloy Resistance HTC series has the following advantages:

 

1. Wide range of volume options: 0805,1206,1508,2010,2512,3008,3015,3618,3921

 

2. Wide range of resistance options: 0.05mR~100mR

 

3. Wide range of power options: 1W~5W

 

4. High accuracy: △ ≤ 1%

 

5. Low temperature coefficient: TCR < 50ppm/℃

 

6. High frequency response: H < 5.0nH

 

7. Excellent low galvanic effect (EMF<0.5uV/℃)

 

8. How to use RoHS and REACH halogen-free standards

 

9. The anti welding layer complies with UL94-V0 level

 

10. Low inductance (<0.05uH 10MHz)

 

The Naming convention of Suzhou Huade Electronic Walter long electrode alloy resistance HTC series are as follows:

 

HTC 2512 M 3W0 R001 F S
1 2 3 4 5 6 7

 

1: Product series: HTC series, metal ceramic alloy current detection resistor, long electrode, two terminals, No lateral guide.

 

2: Volume: 2512=6432=6.4 * 3.2mm

 

3: Material: M=Manganese copper alloy=MnCu alloy

 

4: Power: 3W0=3.0Watt

 

5: Resistance value: R001=0.001R=1mR

 

6: Accuracy: D=0.5%, F=1%

 

8: Product code: internal code or custom code

 

The selection parameters of Suzhou Huade Electronics Walter long electrode alloy resistance HTC series are shown in the table below:

 

Part Number

Resistance Value

()

Power Rating

(Watt)

Resistance Tolerance

(%)

TCR

(ppm/℃)

HTC0805M1W0R 1~9 1 ±1%(F) ±100ppm
10~100 1 ±0.5%(D)±1%(F) ±50ppm
HTC1206M1W50R 1~9 1.5 ±1%(F) ±100ppm
10~100 1.5 ±0.5%(D)±1%(F) ±50ppm
HTC1508M2W0R 1~9 2 ±1%(F) ±100ppm
10~100 2 ±0.5%(D)±1%(F) ±50ppm
HTC2010M2W0R 0.5 2 ±1%(F) ±150ppm
1~9 2 ±1%(F) ±100ppm
10~100 2 ±0.5%(D)±1%(F) ±50ppm
HTC2512M3W0R 1~9 3 ±1%(F) ±100ppm
10~100 3 ±0.5%(D)±1%(F) ±50ppm
HTC3008M3W0R 1~9 3 ±1%(F) ±100ppm
10~100 3 ±0.5%(D)±1%(F) ±50ppm
HTC3015M4W0R 1~9 4 ±1%(F) ±100ppm
10~100 4 ±0.5%(D)±1%(F) ±50ppm
HTC3618M4W0R 1~9 4 ±1%(F) ±100ppm
10~100 4 ±0.5%(D)±1%(F) ±50ppm
HTC3618M5W0R 1~9 4 ±1%(F) ±100ppm
10~100 4 ±0.5%(D)±1%(F) ±50ppm

 

 Walter Long Electrode Alloy Resistance HTC Series Functional Characteristics:

 

Parameter

Conditions

Consent Standard

Short time over load

Power=2.5*Pr ; T=25±2℃ ; t=5s

± (1.0%+0.5mΩ)

IEC60115-1 4.13

 

High temp. exposure

T=+155±2℃; t=1,000hrs

± (1.0%+0.5mΩ)

IEC60115-1 4.25

Low temp. load life

T=-55±2℃ ; t=1,000hrs

± (1.0%+0.5mΩ)

IEC60115-1 4.25

Moisture load life

Vtest=Vmax, ton=90min,toff=30min, T=60±2℃,RH=95%,1,000hrs

± (2.0%+0.5mΩ)

IEC60115-1 4.25

Thermal shock

[-55℃ 30min→ R.T. 3min→ +150℃ 30min→ R.T. 3min]

by 100 Continuous Cycles

± (1.0%+0.5mΩ)

IEC60115-1 4.19

Load life at 70℃

Vtest=Vmax ; T=70±2℃ ; t=90min On t=30min Off; 1,000hrs

± (2.0%+0.5mΩ)

IEC60115-1 4.25

Solderability

Dipped into solder at 245±5℃ for 3±1s

The covered area >95%

IEC60115-1 4.17

 

Resistance to solder heat

20±1s at 275±5℃

±(1%+0.5mΩ) IEC60115-1 4.18

Substrate bending

Span between fulcrums: 90mm; Bend width: 2mm; Test board:

Glass-epoxy board, Thickness=1.6mm by 10 continuous cycles

±(1%+0.5mΩ) IEC60115-1 4.33

Mechanical shock

a=100G for 11ms, 5 Pulse

±(1%+0.5mΩ) IEC60115-1 4.21

 

Brand

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