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Current sensing metal foil resistor Walter Elec STE0805MW75R027F with 075 watt power and low tolerance

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Current sensing metal foil resistor Walter Elec STE0805MW75R027F with 075 watt power and low tolerance

Power(Watts) : 750mW

Resistance : 27mΩ

Temperature Coefficient : ±50ppm/℃

Tolerance : ±1%

Description : 27mΩ ±1% 750mW

Mfr. Part # : STE0805MW75R027F

Model Number : STE0805MW75R027F

Package : 0805

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Product Overview

The STE series of current sensing resistors are metal foil components designed for accurate current measurement. They are suitable for applications requiring high precision and reliability, offering various sizes, power ratings, and resistance values to meet diverse design needs.

Product Attributes

  • Brand: STE Series
  • Material: Metal Foil (MnCu alloy, Alloy, Special)
  • Substrate: Alumina Ceramic
  • Protective Coating: Flame-retardant epoxy (UL-94-V0, Green)
  • Marking Coating: Flame-retardant epoxy (UL-94-V0, Black)

Technical Specifications

Part Number SeriesResistance Value (m)Power Rating (Watt)Resistance Tolerance (%)TCR (ppm)Dimensions (W x L x T, mm)Terminal Electrode (A, mm)
STE0603*W50-seriesR005~R600.50.5%(D) / 1%(F)50 / 1000.900.20 x 1.700.20 x 0.650.200.500.20 (R005) / 0.400.20 (R006*S~R060)
STE0805*W75-seriesR003~R2000.750.5%(D) / 1%(F)50 / 1001.350.20 x 2.100.20 x 0.650.200.650.20 (R003) / 0.500.20 (R004*S~R200)
STE1206*1W0-seriesR003~R4001.00.5%(D) / 1%(F)50 / 1001.700.20 x 3.300.20 x 0.650.201.200.30 (R003) / 0.680.30 (R004*S~R400)
STE2010*1W5-seriesR002~R4001.50.5%(D) / 1%(F)50 / 1002.600.20 x 5.100.20 x 0.650.202.100.30 (R002~R003) / 0.700.30 (R004*S~R400)
STE2512*2W0-seriesR002~R4002.00.5%(D) / 1%(F)50 / 1003.200.30 x 6.400.30 x 0.650.202.800.30 (R002) / 2.600.30 (R003) / 1.050.30 (R004*S~R400)
STE3921*3W0-seriesR002~R1003.00.5%(D) / 1%(F)50 / 1005.100.30 x 11.100.30 x 0.650.204.900.30 (R002) / 4.550.30 (R003) / 2.360.30 (R004*S~R100)
STE4527*4W0-seriesR002~R1004.00.5%(D) / 1%(F)50 / 1007.101.0 x 11.601.0 x 0.650.305.000.40 (R002) / 2.700.40 (R003*S~R100)

Product Characteristics and Reliability Test Standard

ParameterConditionsRequirementsIEC Standard
Short Time Over LoadP= 2.5Pr ; T=252C , t = 5sec.(1.0%+0.5m)60115-1 4.13
High Temp. ExposureT = +1702C ; t = 1000h(1.0%+0.5m)60115-1 4.25
Low Temp. StorageT = -552C ; t = 1000h(1.0%+0.5m)60115-1 4.25
Moisture Load Life6095RH Vtest = Vmax ; T=602C ; RH=95% ; t= 90min ON , 30min OFF , 1000h(2.0%+0.5m)60115-1 4.25
Thermal Shock[-55C 30min. R.T. 3min. +155C 30min. R.T. 3min ], 100 Cycles(1.0%+0.5m)60115-1 4.19
Load Life at 70CVtest = Vmax ; T=702C ;t= 90min ON , 30min OFF,1000h(2%+0.5m)60115-1 4.25
SolderabilityDip into solder at T = 2455C , t = 30.5sec.The covered area >95%60115-1 4.17
Resistance to Solder HeatThrough Reflow T= 2755C , t =201sec.(1.0%+0.5m)60115-1 4.18
Mechanical Shocka =100G , t =11ms, 5 times shock(1.0%+0.5m)60115-1 4.21
Substrate BendingSpan:90mm ; Bend Width:2mm ; Board: Glass-Epoxy ; Thickness =1.6mm(1.0%+0.5m)60115-1 4.33

Environmental Characteristic

  • Operating Temperature: -55155
  • Storage Conditions: 2 years under airtight at +1040, 75% RH. Max. 30 days without dew at +1060, 95% RH.

Recommended Solder Pad Size and Welding Conditions

Part Number SeriesP (mm)W (mm)D (mm)Loading (Watt)
STE0603MW50-series0.500.921.350.50w
STE0603MW50-series (R006*S~R009*S)0.600.921.300.50w
STE0603*W50-series (R010~R60)0.600.921.300.50w
STE0805MW75-series0.501.441.550.75w
STE0805MW75-series (R004*S~R007*S)0.801.441.400.75w
STE0805*W75-series (R008~R200)0.801.441.400.75w
STE1206M1W0-series0.601.842.101.0w
STE1206M1W0-series (R004*S~R008*S)1.201.841.801.0w
STE1206*1W0-series (R009~R400)1.201.841.801.0w
STE2010M1W5-series (R002~R003)0.702.883.651.5w
STE2010M1W5-series (R004*S~R009*S)2.702.882.651.5w
STE2010*1W5-series (R010~R400)2.702.882.651.5w
STE2512M2W0-series (R002)0.603.574.352.0w
STE2512M2W0-series (R003)0.903.574.202.0w
STE2512M2W0-series (R004*S~R009*S)3.103.573.102.0w
STE2512*2W0-series (R010~R400)3.103.573.102.0w
STE3921M3W0-series (R002)1.105.756.453.0w
STE3921M3W0-series (R003)1.705.756.153.0w
STE3921M3W0-series (R004*S~R008*S)5.005.754.503.0w
STE3921*3W0-series (R009~R100)5.005.754.503.0w
STE4527M4W0-series (R002)1.208.056.654.0w
STE4527M4W0-series (R003*S~R005*S)5.208.054.654.0w
STE4527*4W0-series (R006~R100)5.208.054.654.0w

Recommended Customer Soldering Parameters:

  • Wave Solder Temperature Curve: Preheating: 100~130, max. 100 sec. Soldering: 250~265 max. 10 sec. Maximum temperature: 2605, max. 10sec.
  • Solder Reflow Temperature Curve: Preheating: 145 15, max. 120 sec. Soldering: min. 220, max. 60 sec. Maximum temperature: 2605, max. 10sec.

2410121318_Walter-Elec-STE0805MW75R027F_C201260.pdf


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