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Metal Foil Current Sensing Resistor Walter Elec STE2512A2W0R068F for Current Monitoring Applications

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Metal Foil Current Sensing Resistor Walter Elec STE2512A2W0R068F for Current Monitoring Applications

Power(Watts) : 2W

Resistance : 68mΩ

Type : Current Sense Resistor

Tolerance : ±1%

Temperature Coefficient : ±50ppm/℃

Description : 68mΩ ±1% 2W

Mfr. Part # : STE2512A2W0R068F

Model Number : STE2512A2W0R068F

Package : 2512

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STE Series Current Sensing Resistor

The STE series Metal Foil Current Sensing Resistors are designed for accurate current measurement. They offer a robust solution for applications requiring precise current monitoring and control, with various sizes and resistance values to suit diverse needs. These resistors are constructed with high-quality materials for reliability and performance.

Product Attributes

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

Technical Specifications

Part Number Series	Dimensions (W x L x T) (mm)	Resistance Value (m)	Power Rating (Watt)	Resistance Tolerance (%)	TCR (ppm/C)
STE0603*W50-series	0.900.20 x 1.700.20 x 0.650.20	5~60	0.50	0.5% (D), 1% (F)	50, 100
STE0805*W75-series	1.350.20 x 2.100.20 x 0.650.20	3~200	0.75	0.5% (D), 1% (F)	50, 100
STE1206*1W0-series	1.700.20 x 3.300.20 x 0.650.20	3~400	1.0	0.5% (D), 1% (F)	50, 100
STE2010*1W5-series	2.600.20 x 5.100.20 x 0.650.20	2~400	1.5	0.5% (D), 1% (F)	50, 100
STE2512*2W0-series	3.200.30 x 6.400.30 x 0.650.20	2~400	2.0	0.5% (D), 1% (F)	50, 100
STE3921*3W0-series	5.100.30 x 11.100.30 x 0.650.20	2~100	3.0	0.5% (D), 1% (F)	50, 100
STE4527*4W0-series	7.101.0 x 11.601.0 x 0.650.30	2~100	4.0	0.5% (D), 1% (F)	50, 100

Product Dimensions (Example: STE0603)

Part Number	W (mm)	L (mm)	T (mm)	A (mm)
STE0603MW50-series R005	0.900.20	1.700.20	0.650.20	0.500.20
STE0603MW50-series R006S~R009S	0.900.20	1.700.20	0.650.20	0.400.20
STE0603MW50-series R010~R049	0.900.20	1.700.20	0.650.20	0.400.20
STE0603*W50-series R050~R060	0.900.20	1.700.20	0.650.20	0.400.20

Reliability Test Standards

Test Parameter	Conditions	Acceptance Standard	IEC Standard
Short Time Over Load	P = 2.5Pr ; T = 252C , t = 5sec.	(1.0%+0.5m)	60115-1 4.13
High Temp. Exposure	T = +1702C ; t = 1000h	(1.0%+0.5m)	60115-1 4.25
Low Temp. Storage	T = -552C ; t = 1000h	(1.0%+0.5m)	60115-1 4.25
Moisture Load Life	(60, 95%RH) 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 70C	Vtest = Vmax ; T=702C ;t= 90min ON , 30min OFF,1000h	(2%+0.5m)	60115-1 4.25
Solderability	Dip into solder at T = 2455C , t = 30.5sec.	The covered area >95%	60115-1 4.17
Resistance to Solder Heat	Through Reflow T= 2755C , t =201sec.	(1.0%+0.5m)	60115-1 4.18
Mechanical Shock	a =100G , t =11ms, 5 times shock	(1.0%+0.5m)	60115-1 4.21
Substrate Bending	Span: 90mm ; Bend Width: 2mm ; Test board: Glass-Epoxy Board ; Thickness =1.6mm	(1.0%+0.5m)	60115-1 4.33

Environmental Characteristics

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

Recommended Solder Pad Size and Welding Conditions (Example: STE0603)

Part Number Series	P (mm)	W (mm)	D (mm)	Loading (Watt)
STE0603MW50-series R005	0.50	0.92	1.35	0.50
STE0603MW50-series R006S~R009S	0.60	0.92	1.30	0.50
STE0603*W50-series R010~R60	0.60	0.92	1.30	0.50

Recommended Customer Soldering Parameters

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

2410121318_Walter-Elec-STE2512A2W0R068F_C388453.pdf

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