Document
Low Resistance Value Chip Resistors
Low Resistance Value Chip Resistors(Current Sensing Resistors) 0603, 2512
Type:
ERJM03 ERJM1W
■ Features
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Low resistance values and high precision(1 mΩ to 20 mΩ) Stable resistance not influenced by measurement position High heat emission Low profile, strong body Inductance less than 1.0 nH for the metal plate structure RoHS compliant
Packaging Methods, Land Pattern, Soldering Conditions and Safety Precautions
Please see Data Files
■ Explanation of Part Numbers
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1 2 3 4 5 6 7 8 9 10 11 12
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3
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Product Code Thick Film Chip Resistors
Size, Power Rating Type: inch Power R. M03 : 0603 0.25 W
Type Code N General type
Resistance Tolerance Code F J Tolerance ±1% ±5%
Code V
Packaging Methods Packaging Punched Carrier Taping 4 mm pitch, 5,000 pcs.
Resistance Value Shown by 3 digits or letters. Decimal point is expressed by M as 10 m?=10M
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1 2 3 4 5 6 7 8 9 10 11 12
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3
+
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4
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Product Code Thick Film Chip Resistors
Size, Power Rating Type: inch Power R. M1W : 2512 1W
Type Code S General type T Wide terminal type
Resistance Tolerance Code F J Tolerance ±1% ±5%
Code
Packaging Methods Packaging Embossed Carrier Taping U 4 mm pitch, 3,000 pcs.
Resistance Value Shown by 3 digits or letters. Decimal point is expressed by M as 3 m?=3M0, 10 m?=10M
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Aug. 2012
14
Free Datasheet http://www.datasheet4u.com/
Low Resistance Value Chip Resistors
■ Construction
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Terminal; Plated Metal Resistive Body; Alloy Plate Protective coating; Resin
Terminal; Plated Metal Resistive Body; Alloy Plate Protective coating; Resin
■ Dimensions in mm (not to scale)
●
T
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a T L Mass (Weight) [g/1000 pcs.] 1.7 Type S Type Type (inch size) Dimensions (mm) L 6.40 6.40
±0.25
a L
W
Type (inch size) ERJM03N (0603)
Dimensions (mm) L W T a b
W
b
W
T
a 1.00
±0.25
Mass (Weight) [g/1000 pcs.] 70 90
1.60±0.15 0.8±0.15 0.35±0.10 0.45±0.15 0.65±0.15
ERJM1WS (2512) ERJM1WT T Type (2512)
3.20
±0.40
±0.25
0.80
±0.30
2.10
±0.30
■ Ratings
Type Power Rating Standard (inch size) at 70 °C (W) Resistance (mΩ) ERJM03N (0603) ERJM1WS (2512) 1 ERJM1WT (2512) 0.25 10 3, 4 5, 6, 10, 15, 20 1, 1.5 2, 3, 4 F: ±1, J: ±5 Resistance Tolerance (%) T.C.R. (×10 -6/°C) ±100 ±350 ±100 350±100 100±50 –55 to +170
You should use the aluminum substrate when the added wattage exceeds 0.5 W.
Category Temperature Range (°C) –55 to +155
Circuit board of use
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✽ Please contact the factory for other values and the range Power Derating Curve For resistors operated in ambient temperatures above 70 °C, power rating shall be derated in accordance with the figure on the right.
120 100 Rated Load (%) 80 ERJM1W 60 40 20 0 –55 –40 155 °C 0 40 80 120 160 170 °C 200 ERJM03 70 °C
Ambient Temperature (°C)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Aug. 2012
15
Free Datasheet http://www.datasheet4u.com/
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