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PDFs and Datasheets LVT Series Datasheet

LVT Series Datasheet

Low Value Current Sense  

Res Lvt product image

 

The Ohmite LVT series is s metal alloy strip resistor providing good TCR ratings. Low value stability is important when using a current sense resistor. The LVT offers TCR ratings down to 50ppm with tolerances down to 1%. The LVT series provides a resistance range from 2m to 20m ohms. TCR stability with tight tolerances and wide resistance range makes the LVT series suited for most current sense applications.

Series Specifications

Pkg.Size:

0201

Power Rating (W @70°C):

0.25W

Resistance Range (mΩ):

10, 20

TCR (ppm/°C):

±200, ±100

Tolerance:

±1% (F), ±0.5% (D), ±1% (F)

Pkg.Size:

0402

Power Rating (W @70°C):

0.33W

Resistance Range (mΩ):

2.5, 3 ~ 4, 5 ~ 20

TCR (ppm/°C):

±150, ±150, ±100

Tolerance:

±3% (H), ±2% (G), ±1% (F)

Pkg.Size:

0603

Power Rating (W @70°C):

0.33W

Resistance Range (mΩ):

2, 3 ~ 4, 5 ~ 20

TCR (ppm/°C):

±150, ±150, ±100

Tolerance:

±3% (H), ±2% (G), ±1% (F)

Pkg.Size:

0805

Power Rating (W @70°C):

0.5W

Resistance Range (mΩ):

2, 3, 4, 5 ~ 10, 11 ~ 20

TCR (ppm/°C):

±100, ±100, ±75, ±75, ±50

Tolerance:

±3% (H), ±2% (G), ±2% (G), ±1% (F), ±1% (F)

Pkg.Size:

1206

Power Rating (W @70°C):

1.0W

Resistance Range (mΩ):

2, 3, 4, 5 ~ 10, 11 ~ 20

TCR (ppm/°C):

±100, ±100, ±75, ±75, ±50

Tolerance:

3% (H), ±2% (G), ±2% (G), ±1% (F), ±1% (F)

Characteristics

0.002- 0.020 dependent on size and TCR value

-55°C ~ 155°C

+70°C

3%, 2% and 1% based on resistance value

±150, 100, 75, or 50 ppm based on resistance

epoxy resin

100% matte tin

2 years airtight, +10°C ~ 40°C, relative humid-ity ≤75%. Without dew, +10°C ~ 60°C, relative humidity 95%, maximum value for 30 days

Derating

Res Lvt Graph 1

 

Power rating is based on continuous full load operation at rated ambient temperature of 70ºC. For resistors operated at ambient temp. in excess 70 ºC, the max. load shall be der- ated in accordance with the following curve.

Construction

Res Lvt Construction

Performance Characteristics

Condition:

2.5Pr; 5±2ºC, 5sec.

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.13

Condition:

+155±2ºC, 1000h

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.25

Condition:

-55±2ºC, 1000h

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.25

Condition:

60°C, 95% RH; Vtest = Vmax; 60±2ºC; RH=95%; 90min ON, 30min OFF, 1000h

Requirement:

±(2.0%+0.5mΩ); IEC60115-1 4.25

Condition:

-55ºC 30min., R.T. 3min.. +155ºC 30min., R.T. 3min, 100 Cycles

Requirement:

(1.0%+0.5mΩ); IEC60115-1 4.19

Condition:

Vtest = Vmax; 70±2ºC; 90min ON, 30min OFF, 1000h

Requirement:

±(2.0%+0.5mΩ); IEC60115-1 4.25

Condition:

Dip into solder at 245 ±5ºC, 3±0.5sec.,

Requirement:

covered area 95%; IEC60115-1 4.17

Condition:

Through Reflow, 275 ±5ºC, 20 ±1sec.

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.18

Condition:

100G, 11ms, 5x

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.21

Condition:

Span between fulcrums; 90mm; Bend Width 2mm; Test board Glass-Epoxy Board; Thickness 1.6mm

Requirement:

±(1.0%+0.5mΩ); IEC60115-1 4.33

Soldering 

 

Wave

Res Lvt Wave

 

Preheating : 100°C ~ 130°C, max.100 sec.
Soldering: 250°C ~ 265°C max. 10 sec.
Maximum temperature : 260°C ±5, max. 10 sec. 

 

Reflow

Res Lvt Reflow

 

Preheating : 145°C ±15, max.120 sec.
Soldering : min. 220°C, max. 60 sec.
Maximum temperature : 260°C ±5, max. 10 sec.

 

Rework temperature

(hot air equipment) 350℃, 3 ~ 5 seconds

 

Recommended reflow methods

IR, vapor phase oven, or hot air oven. If  reflow temperatures exceed the recom- mended profile, devices may not meet the  performance requirements.

Dimensions

(mm)

Res Lvt Dimenions

Res. Range: R010~R020

W: 0.30 ±0.10

L: 0.60 ±0.10

T: 0.25 +0.1/-0.05

A: 0.15 ±0.10

Res. Range: R0025~R004

W: 0.55 ±0.10

L: 1.00 ±0.10

T: 0.30 ±0.05

A: 0.30 ±0.10

Res. Range: R005~R020

W: 0.55 ±0.10

L: 1.00 ±0.10

T: 0.30 ±0.05

A: 0.23 ±0.10

Res. Range: R002

W: 0.80 ±0.25

L: 1.60 ±0.25

T: 0.40 ±0.25

A: 0.45 ±0.20

Res. Range: R003

W: 0.80 ±0.25

L: 1.60 ±0.25

T: 0.40 ±0.25

A: 0.35 ±0.20

Res. Range: R004~R020

W: 0.80 ±0.25

L: 1.60 ±0.25

T: 0.40 ±0.25

A: 0.30 ±0.20

Res. Range: R002

W: 1.25 ±0.25

L: 2.00 ±0.25

T: 0.40 ±0.25

A: 0.60 ±0.20

Res. Range: R003~R020

W: 1.25 ±0.25

L: 2.00 ±0.25

T: 0.40 ±0.25

A: 0.40 ±0.20

Res. Range: R002

W: 1.60 ±0.25

L: 3.20 ±0.25

T: 0.40 ±0.25

A: 1.05 ±0.30

Res. Range: R003

W: 1.60 ±0.25

L: 3.20 ±0.25

T: 0.40 ±0.25

A: 0.80 ±0.30

Res. Range: R004~R020

W: 1.60 ±0.25

L: 3.20 ±0.25

T: 0.40 ±0.25

A: 0.60 ±0.30

 

Solder Pad

Res. Range: R010~R020

P: 0.25mm

W: 0.33mm

D: 0.20mm

Res. Range: R0025~R020

P: 0.40mm

W: 0.60mm

D: 0.60mm

Res. Range: R002

P: 0.50mm

W: 0.92mm

D: 1.35mm

Res. Range: R003~R020

P: 0.60mm

W: 0.92mm

D: 1.30mm

Res. Range: R002

P: 0.50mm

W: 1.44mm

D: 1.55mm

Res. Range: R003~R020

P: 0.80mm

W: 1.44mm

D: 1.40mm

Res. Range: R002

P: 0.60mm

W: 1.84mm

D: 2.10mm

Res. Range: R003~R020

P: 1.20mm

W: 1.84mm

D: 1.80mm

Res Lvt Pad

Tape And Reel

(mm)

 

Tape

 

LVT04

Res Ltv Dimensions 1

 

LVT06, 08 & 12 

Res Ltv Dimensions 2

P: 2.00 ±0.10

A0: 0.38 ±0.10

B0: 0.68 ±0.10

T: 0.45 ±0.05

P: 2.00 ±0.10

A0: 0.75 ±0.20

B0: 1.25 ±0.200

T: 0.50 ±0.05

P: 4.00 ±0.10

A0: 1.18 ±0.20

B0: 1.98 ±0.20

T: 0.75 ±0.10

P: 4.00 ±0.10

A0: 1.55 ±0.20

B0: 2.30 ±0.20

T: 0.75 ±0.10

P: 4.00 ±0.10

A0: 2.05 ±0.20

B0: 3.65 ±0.20

T: 0.75 ±0.10

 

Reel

Res Lvt Reel

Qty/reel: 10,000

Weight (g): 100 ±30

Qty/reel: 10,000

Weight (g): 100 ±30

Qty/reel: 5,000

Weight (g): 110 ±30

Qty/reel: 5,000

Weight (g): 120 ±30

Qty/reel: 5,000

Weight (g): 140 ±30

 

Peeling strength 

Res Lvt Strength

Ordering Information

Res Lvt Order Info

 

Standard part numbers

LVT02R0100FER
LVT02R0200FER
LVT04R0025HER
LVT04R0030GER
LVT04R0050FER
LVT04R0100FER
LVT04R0150FER
LVT04R0200FER
LVT04R0250FER
LVT04R0500FER

LVT06R0020HER
LVT06R0030GER
LVT06R0050FER
LVT06R0100FER
LVT06R0150FER
LVT06R0200FER

LVT08R0010JER
LVT08R0015JER
LVT08R0020HER
LVT08R0025HER
LVT08R0030GER
LVT08R0050FER
LVT08R0100FER
LVT08R0150FER
LVT08R0200FER

LVT12R0010JER 
LVT12R0020HER
LVT12R0030GER
LVT12R0050FER
LVT12R0100FER
LVT12R0150FER
LVT12R0200FER

 

Marking

LVT06: 02

LVT08: 002

LVT12: -

LVT06: -

LVT08: -

LVT12: R005

LVT06: -

LVT08: -

LVT12: 5M10

LVT06: 10

LVT08: 010

LVT12: R010

 

(no marking on LVT04)

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