Datasheet

ManualsBrandsRALEC ManualsResistorsMetal film resistor 0.001 Ω SMD 2512 2 W 1 % 1 pc(s)

1 Scope:

This specification is applicable to lead free and halogen free for metal alloy

low-resistance resistor by following products:

- LR1206 series

- LR2010 series

- LR2512 series

- LR2725 series

- LR2728 series

- LR4527 series

2 Explanation Of Part Numbers:

Page No.

2011

Released Date

IE-SP-022

Document No.

Metal Alloy Low-Resistance

Resistor Specifications

RALEC

旺詮

Do not co

without

ermission

Issue Dep. DATA Center.

Series No.

Remark

IT’ S NOT UNDER CONTROL FOR PDF FILE

PLS NOTE THE VERSION STATED.

Written

CheckedApproved

(EX)

Nominal Resistance

LR 2512 - 2 1 R001 F 2

4~6

Digit

Resistance

Tolerance

D=± 0.5%

F=± 1%

2010

Size (inch)

Type

Resistor

Metal Alloy

Packaging

Low-Resistance

2 : 2 terminals

Number of

1 = 1 W

Rated Power

2512

A = 1.5 W

2 = 2 W

3 = 3 W

B = 3.5 W

4 = 4 W

Terminals

J=± 5%

2728

2725

1206

C = 0.5 W

G=± 2%

4527

R100 = 100mΩ

EX.

R010 = 10mΩ

R001 = 1mΩ

R00025 = 0.25mΩ

A : 500 pcs

1 : 1000 pcs

2 : 2000 pcs

5 = 5 W

4 : 4000 pcs

Summary of content (13 pages)

PAGE 1
RALEC Document No. Metal Alloy Low-Resistance Resistor Specifications 旺詮 Released Date Page No.
PAGE 2
RALEC Document No. Metal Alloy Low-Resistance Resistor Specifications 旺詮 Released Date Page No. IE-SP-022 2011/10/19 2/13 3 Product Specifications: Type LR1206 LR2010 LR2512 LR2725 LR2728 LR4527 Remark Rated Number Max. Max. Power of Rated Overload T.C.R ( ppm / ℃ ) at Terminals Current Current 70℃ 0.5 W 22.36 A 44.72 A 1W 31.62 A 63.25 A 1W 31.62 A 63.25 A 1W 44.72 A 100.00 A 1.5 W 54.77 A 122.48 A 2 2 2 2 2 2 2W 63.25 A 141.42 A 3W 77.46 A 134.16 A 4W 126.
PAGE 3
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 3/13 3.1 Power Derating Curve: Operating Temperature Range： - 55 ~+170 ℃ For resistors operated in ambient temperatures above 70℃, power rating shall be derated in accordance with figure below. Rating Power (%) 100 70 80 60 40 20 0 -55 0 25 50 75 100 125 150 170 Ambient Temperature(℃) 3.
PAGE 4
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 4/13 4 Dimensions: 1206 / 2010 / 2512 / 2725 / 2728 4527 L L W W T2 H H T1 TYPE LR1206 LR2010 Power Rating (W) 0.5 1 1 1 1.5 LR2512 2 3 LR2725 4 Resistance Range (mΩ) L 1~50 3.200± 0.254 1.600± 0.254 5.080± 0.254 2.540± 0.254 6.248± 0.254 3.302± 0.254 1.0~3 3.1~100 0.5~4 4.1~75 75.1~100 0.5~4 4.1~75 0.5 0.6~2.9 4.1~10 3~4 0.25、0.5 1 1.5 2 2.5 3 LR2728 3 3.
PAGE 5
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 5/13 5 Reliability Performance Test 5.1 Electrical Performance Test Item Conditions （ R2－ R1） Temperature 6 Coefficient of TCR（ppm/℃）＝ R1（ T2－ T1） × 10 Resistance R1: Resistance at room temperature R2: Resistance at +150℃ T1: Room temperature T2: Temperature at +150℃ Refer to JIS-C5201-1 4.
PAGE 6
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 6/13 5.2 Mechanical Performance Test Item Conditions Add flux into tested resistors, immersion into solder bath Solderability in temperature 245± 5℃ for 3 ± 0.5 secs. Refer to JIS-C5201-1 4.17 The tested resistor be immersed into isopropyl alcohol Resistance of 20~25℃ for 60 secs, then the resistor is left in the to room for 48 hrs. Solvent Refer to JIS-C5201-1 4.
PAGE 7
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 7/13 5.3 Environmental Test Item Conditions Put tested resistor in chamber under temperature 170± 5℃ for 1000 hours. Then leaving the tested resistor in Temperature room temperature for 60 minutes , and measure its resistance variance rate. Exposure Refer to JIS-C5201-1 4.23.2 Put the tested resistor in chamber under temperature Low Temperature -55± 2℃ for 1000 hours.
PAGE 8
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 8/13 6 Recommend Soldering Method 6.1 IR Reflow Soldering Profile 260±5°C Max. 10secs 1 2 3 4 Time (minute) Remark IT’ S NOT UNDER CONTROL FOR PDF FILE Issue Dep. DATA Center. PLS NOTE THE VERSION STATED. Do not copy without permission Series No.
PAGE 9
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. IE-SP-022 2011/10/19 9/13 Released Date Page No. 6.2 Wave Soldering Profile Time (sec) 7 Recommend Land Pattern： Unit : mm Maximum TYPE Power Rating (Watts) LR1206 0.5 & 1.0 LR2010 1.0 LR2512 1.0 & 1.5 LR2512 LR2512 Resistance Range (mΩ) a b i 1.0~50.0 1.60 2.18 1.00 1.0~3.0 2.89 2.92 1.22 3.1~100.0 2.29 2.92 2.41 0.5~4.0 3.05 3.68 1.27 4.1~100.0 2.11 3.68 3.18 0.5~4.0 3.05 3.68 1.27 4.1~75.
PAGE 10
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 10/13 8 Marking (All the products marking are 4 digits) 8.1 LR1206 《EX》Marking →R010＝10 mΩ 8.2 LR2010 《EX》Marking →R002＝2 mΩ(below or equal than 3 mΩ) 《EX》Marking →R005＝5 mΩ( greater than 3 mΩ) 8.3 LR2512 《 EX》Marking →0m50＝0.
PAGE 11
RALEC 旺詮 Metal Alloy Low-Resistance Resistor Specifications Document No. Released Date Page No. IE-SP-022 2011/10/19 11/13 《EX》Marking →5m25＝5.25 mΩ(greater than 4 mΩ) 《EX》Marking →25m5＝25.5 mΩ(greater than 4 mΩ) 8.4 LR2725 《EX》Marking→0m25＝0.25 mΩ(for 0.25 mΩ only) 《EX》Marking→2m50＝2.5 mΩ(for 2.5 mΩ only) 《EX》Marking→R003＝3 mΩ(for 1 mΩ、2 mΩ and 3 mΩ only) Remark IT’ S NOT UNDER CONTROL FOR PDF FILE Issue Dep. DATA Center. PLS NOTE THE VERSION STATED.
PAGE 12
RALEC 旺詮 Document No. Metal Alloy Low-Resistance Resistor Specifications Released Date Page No. IE-SP-022 2011/10/19 12/13 8.5 LR2728 《EX》Marking→R005＝5 mΩ 8.6 LR4527 《EX》Marking→0m50＝0.5 mΩ(for 0.50 mΩ only) 0m50 《EX》Marking→R010＝10 mΩ R010 《EX》Marking→15m5＝15.5 mΩ 15m5 8.7 Marking Style Marking Type R m 1 2 3 4 5 6 7 8 9 0 LR1206 LR2010 LR2512 LR2725 LR2728 LR4527 Remark IT’ S NOT UNDER CONTROL FOR PDF FILE Issue Dep. DATA Center. PLS NOTE THE VERSION STATED.
PAGE 13
RALEC Document No. Metal Alloy Low-Resistance Resistor Specifications 旺詮 IE-SP-022 2011/10/19 13/13 Released Date Page No. 9 Taping Specifications 9.1 Tape Dimension: unit：mm DIM TYPE LR1206 LR2010 LR2512 LR2725 LR2728 LR4527 A B P0 10× P0 P1 3.5± 0.10 0.90 ± 0.10 0.20 ± 0.05 4.0± 0.10 4.0± 0.10 40.0± 0.20 2.0± 0.10 5.45± 0.10 2.90± 0.10 12.0± 0.15 1.75± 0.10 5.5± 0.10 1.10 ± 0.10 0.23 ± 0.05 4.0± 0.10 4.0± 0.10 40.0± 0.20 2.0± 0.10 6.74± 0.10 3.90± 0.10 12.0± 0.15 1.75± 0.10 5.5± 0.