Metal Strip Chip Current Sense Resistor (LRC)

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Metal Strip Chip Current Sense Resistors (LRC)

DeMint (LRC) metal strip current sense chip resistor save space, time, and cost.

Providing design engineers with an economical low ohmic value, metal strip current sense surface mount resistor with high quality performance, DeMint Electronics LRC Series is suitable for applications in the automotive sector for applications that require high power handling (Up to 3W) and low resistance 0.5mΩ.

From a certified supplier offering the automotive quality, DeMint's LRC Series gives all round superior performance for current sensing in lamp detection, mirrors, window lift, steering and seat controls.

As a first instance, the LRC Series displays enhanced power handling capabilities, against other technologies.

Thermal conductivity is important for chip resistors - little heat is dissipated directly into the air, and instead, is conducted out through the solder pads.

The heat generated from the specially constructed LRC resistor is more readily dispersed, therefore preventing localised heating, which contributes to TCR and thermal EMF errors, premature aging and possible scorching of the PC board.

The current sensing resistors (LRC) are rated for ambient operation from -55°C to +170°C. The LRC Series is RoHS compliant and lead free.

Downloads Complete Specification PDF (415KB) Metal Strip Chip Current Sense Resistors.
Contact us with your specific needs.

Features :

Low TCR ±50PPM/°C, ±100PPM/°C.
High Wattage Rating Up to 3W.
Customized Resistance Available.
Resistance Values from 0.5mΩ to 15mΩ.
Without Laser Trimmed with Very Low Inductance.

Applications :

For NB power management.
For MB power management.
For Monitor power management.
SWPS: DC-DC converter, Charger, Adaptor.

2512 Construction & Dimension (LRC)

Black 2512 - Wave or IR reflow soldering

Green 2512 - IR reflow soldering only

1206 & 2010 Construction (LRC)

1206 & 2010 Construction

Type

Material

0M50 ~ R003

Manganese, Copper

3M5 ~ R010

Aluminum, Iron, Chromium

Chip 2512, 2010, 1206 Dimensions (LRC)

Chip 2512, 2010, 1206 Dimensions (LRC)

Type

Resistance (mΩ)

L(mm)

W(mm)

T(mm)

D(mm)

Weight(g) / 1000pcs

LRC06*TF0M50

0.50

3.20±0.25

1.60±0.10

0.60±0.20

1.35±0.25

22.6

LRC06*TD0M75

0.75

3.20±0.25

1.60±0.10

0.60±0.20

1.23±0.25

22.6

LRC06*T*****

1.0, 3.5, 4.0, 5.0, 6.0

3.20±0.25

1.60±0.10

0.60±0.20

1.10±0.25

22.6

LRC06*T*****

2.0, 3.0, 10

3.20±0.25

1.60±0.10

0.60±0.20

0.60±0.25

22.6

LRC06*T*****

1.2, 1.5, 7.0, 8.0, 9.0

3.20±0.25

1.60±0.10

0.60±0.20

0.90±0.25

22.6

LRC10*TEA0M50

0.5

5.08±0.25

2.54±0.15

0.60±0.20

2.17±0.25

42.3

LRC10*TDA0M75

0.75

5.08±0.25

2.54±0.15

0.60±0.20

2.04±0.25

42.3

LRC10*TDAR001

1.0

5.08±0.25

2.54±0.15

0.60±0.20

1.84±0.25

42.3

LRC10*TDA****

2.0, 6.0, 7.0, 8.0

5.08±0.25

2.54±0.15

0.60±0.20

1.54±0.25

42.3

LRC10*TDAR003

3.0

5.08±0.25

2.54±0.15

0.60±0.20

1.04±0.25

42.3

LRC10*TDA****

4.0, 5.0

5.08±0.25

2.54±0.15

0.60±0.20

1.84±0.25

42.3

LRC10*TDA****

9.0, 10

5.08±0.25

2.54±0.15

0.60±0.20

1.29±0.25

42.3

LRC12*T**0M50G

0.50

6.35±0.25

3.00±0.20

0.60±0.20

2.68±0.25

59.13

LRC12*T**0M75G

0.75

6.35±0.25

3.00±0.20

0.60±0.20

2.48±0.25

59.13

LRC12*T******G

1.0, 6.0

6.35±0.25

3.00±0.20

0.60±0.20

1.93±0.25

59.13

LRC12*T******G

1.5, 6.5, 7.0

6.35±0.25

3.00±0.20

0.60±0.20

1.43±0.25

59.13

LRC12*T******G

2.0, 2.5, 3.0, 3.5

6.35±0.25

3.00±0.20

0.60±0.20

1.18±0.25

59.13

LRC12*T******G

4.0, 4.5

6.35±0.25

3.00±0.20

0.60±0.20

2.18±0.25

59.13

LRC12*T******G

5.0, 6.0

6.35±0.25

3.00±0.20

0.60±0.20

1.93±0.25

59.13

LRC12*T******G

8.0 - 10

6.35±0.25

3.00±0.20

0.60±0.20

1.18±0.25

59.13

LRC12*T*****G

11 - 15

6.35±0.25

3.00±0.20

0.60±0.20

1.18±0.25

59.13

LRC12*T*0M50

0.50

6.35±0.254

3.18±0.254

1.25±0.20

1.30±0.38

184.11

LRC12*T*0M75

0.75

6.35±0.254

3.18±0.254

0.75±0.20

1.30±0.38

131.11

LRC12*T*R001

1.00

6.35±0.254

3.18±0.254

0.65±0.20

1.30±0.38

110.85

LRC12*T*1M50

1.50

6.35±0.254

3.18±0.254

0.45±0.20

1.30±0.38

67.16

LRC12*T*R002

2.00

6.35±0.254

3.18±0.254

0.35±0.20

1.30±0.38

49.30

LRC12*T*2M50

2.50

6.35±0.254

3.18±0.254

0.65±0.20

1.30±0.38

97.95

LRC12*T*R003

3.00

6.35±0.254

3.18±0.254

0.55±0.20

1.30±0.38

83.49

LRC12*T*R004

4.00

6.35±0.254

3.18±0.254

0.45±0.20

1.30±0.38

62.59

LRC12*T*R005

5.00

6.35±0.254

3.18±0.254

0.35±0.20

1.30±0.38

49.84

LRC12*T*R006

6.00

6.35±0.254

3.18±0.254

0.32±0.20

1.30±0.38

41.76

LRC12*T*6M50

6.50

6.35±0.254

3.18±0.254

0.30±0.20

1.30±0.38

35.85

LRC12*T*R007

7.00

6.35±0.254

3.18±0.254

0.27±0.20

1.30±0.38

34.01

LRC12*T*R010

10.00

6.35±0.254

3.18±0.254

0.25±0.20

1.30±0.38

25.97

Notice : DeMint is capable of manufacturing the optional spec based on customer's requirement.

Standard Electrical Specifications (LRC)
Type	Power Rating at 70°C	Operating Temp. Range	Resistance Tolerance (±%)	Resistance (mΩ)	TCR (±PPM/°C)
LRC06*TF0M50	1W	-55°C ~ +170°C	±1, ±3, ±5	0.5	±200
LRC06TD***	1W			0.75 - 10	±50
LRC12TD***	1W			0.5, 0.75, 1, 1.5, 2	±50
LRC12TW***	1W			6, 6.5, 7	±75
LRC12TE***	1W			4, 5, 10	±100
LRC12TK***	1W			2.5, 3	±150
LRC12TD***G	1W			11, 12, 13, 14, 15	±50

High Power Rating Electrical Specifications (LRC)
Type	Power Rating at 70°C	Operating Temp. Range	Resistance Tolerance (±%)	Resistance (mΩ)	TCR (±PPM/°C)
LRC10*TEA0M50	1.5W	-55°C ~ +170°C	±1, ±3, ±5	0.5	±100
LRC10TDA***	1.5W			0.75 - 10	±50
LRC12TDS***	2W			0.5, 0.75, 1, 1.5, 2	±50
LRC12TWS***	2W			6, 6.5, 7	±75
LRC12TES***	2W			4, 5, 10	±100
LRC12TKS***	2W			2.5, 3	±150
LR1C2TDS***G	2W			6.5, 7, 8, 9, 10	±50
LRC12TDB***G	2.5W			4, 4.5, 5, 6	±50
LRC12TDR***G	3W			1, 1.5, 2, 2.5, 3, 3.5	±50
LRC12TER***G	3W			0.5, 0.75	±100

>Remark : Operating Current I = √ ( P / R ) , Operating Voltage V = √ ( P * R )

4-Wire Precision Measurement (LRC)
Figure	Type	A	B	C	Excitation Current (A)	Resistance (Ω)
4-Wire Precision Measurement	LRC12 Black Coating	1.5	5.4	Φ0.5	3A	0.5m ~ 1.5 m
	LRC12 Black Coating	1.5	5.4	Φ0.5	1A	2m ~10m
	LRC12 Green Coating	1.5	5.4	Φ0.5	3A	0.5m ~ 1.5m
	LRC12 Green Coating	1.5	5.4	Φ0.5	1A	2m ~ 15m
	LRC06	1.25	2.6	Φ0.5	3A	0.5m ~ 1.5m
	LRC06	1.25	2.6	Φ0.5	1A	2m ~ 10m
	LRC10	1.2	4.32	Φ0.5	3A	0.5m ~ 1.5m
	LRC10	1.2	4.32	Φ0.5	1A	2m ~ 10m
	Note: Equipment: ADEX AX-1152D DC Low Ohm Meter

4-Wire Pad Layout (LRC)
Figure	Type	Resistance (Ω)	A	B	C	L
4-Wire Pad Layout (recommended for precision current sensing)	LRC12 Black Coating	-	1.0	2.7	2.95	1.45
	LRC12 Green Coating	0M50	3.13	1.2	1.0	0.52
		0M75	2.93	1.2	1.0	0.94
		R001	2.38	1.2	1.0	2.04
		1M5	1.88	1.2	1.0	3.04
		R002~3M5	1.63	1.2	1.0	3.54
		R004~4M5	2.63	1.2	1.0	1.54
		R005~R006	2.38	1.2	1.0	2.04
		6M5~R007	1.88	1.2	1.0	3.04
		R008~R015	1.63	1.2	1.0	3.54
	LRC10	0M50	2.61	1.045	0.8	0.60
		0M75	2.49	1.045	0.8	0.80
		R001	2.29	1.045	0.8	0.95
		R002	1.99	1.045	0.8	1.55
		R003	1.49	1.045	0.8	2.55
		R004~R005	2.29	1.045	0.8	0.95
		R006~R008	1.99	1.045	0.8	1.55
		R009~R010	1.74	1.045	0.8	2.05
	LRC06	0M50	1.80	0.7	0.5	0.55
		0M75	1.68	0.7	0.5	0.55
		R001	1.55	0.7	0.5	0.55
		1M2	1.35	0.7	0.5	0.95
		1M5	1.35	0.7	0.5	1.55
		R002~R003	1.05	0.7	0.5	1.55
		3M5~R006	1.55	0.7	0.5	0.55
		R007~R009	1.35	0.7	0.5	0.95
		R010	1.05	0.7	0.5	1.55
Note: No circuits between pads to avoid short circuit

2-Wire Pad Layout (LRC)
Figure	Type	Resistance (Ω)	A	B	L
2-Wire Pad Layout	LRC12 Black Coating	-	2.7	3.6	2.95
	LRC12 Green Coating	0M50	3.13	3.4	0.52
		0M75	2.93	3.4	0.94
		R001	2.38	3.4	2.04
		1M5	1.88	3.4	3.04
		R002~3M5	1.63	3.4	3.54
		R004~4M5	2.63	3.4	1.54
		R005~R006	2.38	3.4	2.04
		6M5~R007	1.88	3.4	3.04
		R008~R015	1.63	3.4	3.54
	LRC10	0M50	2.61	2.89	0.60
		0M75	2.49	2.89	0.80
		R001	2.29	2.89	0.95
		R002	1.99	2.89	1.55
		R003	1.49	2.89	2.55
		R004~R005	2.29	2.89	0.95
		R006~R008	1.99	2.89	1.55
		R009~R010	1.74	2.89	2.05
	LRC06	0M50	1.80	1.90	0.55
		0M75	1.68	1.90	0.55
		R001	1.55	1.90	0.55
		1M2	1.35	1.90	0.95
		1M5	1.35	1.90	1.55
		R002~R003	1.05	1.90	1.55
		3M5~R006	1.55	1.90	0.55
		R007~R009	1.35	1.90	0.95
		R010	1.05	1.90	1.55
Note: No circuits between pads to avoid short circuit

Order Codes (LRC)

LRC

R011

Part Type

Dimensions (L×W)(mm)
12	6.3×3.1mm	EIA2512
10	5.1×2.5mm	EIA2010
06	3.2×1.6mm	EIA1206

Resistance Tolerance (%)
J	±5%
H	±3%
F	±1%

Package
TR	Taping Reel

TCR (PPM/°C)
D	±50PPM/°C
W	±75PPM/°C
E	±100PPM/°C
F	±200PPM/°C
K	±150PPM/°C

Power Rating
	Standard
A	1.5W
S	2W
R	3W
B	2.5W

Resistance (Ω)
0m50	0.00050Ω
0m75	0.00075Ω
1m50	0.00150Ω
R011	0.01100Ω
R002	0.00200Ω
R020	0.02000Ω

Protective Coating
	Black Coating
G	Green Coating
**2010/ 1206	No coating / marking

Resistance codes example (3 Marking)
Resistance	0.39mΩ	0.5mΩ	0.75mΩ	330mΩ	5.1Ω
Codes	M39	M50	M75	R33	5R1

Resistance codes example (4 Marking)
Resistance	1mΩ	1.5mΩ	2mΩ	7mΩ	10mΩ
Codes	R001	1M50	R002	R007	R010

Environmental Characteristics (LRC)
Item	Specification		Test Method
Item	Black coating	Green coating	Test Method
Thermal Shock	±0.5%	±1%	-55°C~150°C, 100 cycles. MIL-STD-202 Method 107G
Short Time Overload	±0.5%	±1%	5*Rated Power for 5 seconds. JIS-C-5202-5.5
Endurance	±1%	±1%	70±2°C, Max. working voltage for 1000 hrs with 1.5 hrs and 0.5 hrs
Dry Heat	±1%	±1%	at +170°C for 1000 hrs
Resistance to Soldering Heat	±0.5%	±1%	260±5°C, for 10 seconds. MIL-STD-202F Method 210E
Solderability	95% min coverage		245±5°C for 3 seconds. MIL-STD-202F Method 210E
Temperature Coefficient of Resistance	As Spec.		+25/-55/+25/+125/+25°C. MIL-STD-202 Method 304

Metal Strip Chip Current Sense Resistors (LRC)

Power Derating Curve

4-Wire Precision Measurement

4-Wire Pad Layout(recommended for precision current sensing)

2-Wire Pad Layout

4-Wire Pad Layout
(recommended for precision current sensing)