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DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor tor RLT1632-6 Series Current Sensing Resistor (Lead / Halogen Free) Features / Applications : High power rating is up to 1W RoHS compliant Suitable for reflow soldering Electrical Specifications : Characteristics Feature Power Rating* 1 W Resistance Range 0.1～1 Temperature Coefficient of Resistance(ppm/℃) ±100 Resistance Tolerance ±1%(F), ±2%(G), ±5%(J) Operation Temperature Range -55℃ ～ +155℃ *Note : For sensor operated at ambient temperature in excess of 70℃, the maximum load shall be derated in accordance with the following curve.
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Outline Drawing : Dimensions L 3.20 ± 0.20 W 1.60 ± 0.20 t 0.65 ± 0.20 a 0.70 ± 0.30 b 0.70 ± 0.30 Type Designation : Note : (1) Series No. (2) Power Rating : 6 = 1W (3) Resistance value: The “R” shall be used as a decimal point, For example -- (4) Tolerance (%): F=±1%, G=±2%, J=±5% (5) NH= Sn plating ( Lead free / Halogen free) Unit: mm L W a a t b
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Characteristics : Electrical Item Specification and Requirement Test Method (JIS 5201) Temperature Coefficient of Resistance(ppm/℃) As electrical specifications Room temperature Room temperature +100℃ Short Time Overload △R: ± 0.5% Without damage by flashover, spark, arcing, burning or breakdown 2.5 x rated power for 5 seconds Insulation Resistance Over 100 M on Overcoat layer face up Over 1,000 M on Substrate side face up (1) Setup as figure 1 (2) Test voltage: 100VDC±15VDC (3) Test time: 60 + 10 / - 0 seconds Voltage Proof Resistance range: ± 1.0% Without damage by flashover, spark, arcing, burning or breakdown (1) Setup as figure 1 (2) Test voltage: 400VAC(rms.) (3) Test time: 60 + 10 / - 0 seconds Mechanical Item Specification and Requirement Test Method (JIS 5201) Solderability The surface of terminal immersed shall be minimum of 95% covered with a new coating of solder Solder bath: After immersing in flux, dip in 245 ± 5℃ molten solder bath for 2 ± 0.5 seconds Insulation Plate Spring Sample Electrode Metal Block Measurement Point B Pressure Rod (Metal) Measurement Point A Substrate Over coat Film Figure 1 : Measurement Setup (R=0.5 mm) A B V oltage Supply Substrate Side
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Item Specification and Requirement Test Method (JIS 5201) Resistance to Solder Heat △R: ± 1.0% Without distinct deformation in appearance (1) Pre-heat: 100~110℃ for 30 seconds (2) Immersed at solder bath of (1) 270 ± 5℃ for 10 ± 1 seconds Bending Test △R: ± 1.0% Without mechanical damage such as break Bending value: 3 mm for 30 ± 1 seconds Solvent Resistance Without mechanical and distinct damage in appearance (1) Solvent: Trichloroethane or Isopropyl alcohol (2) Immersed in solvent at room temperature for 300 seconds Endurance Item Specification and Requirement Test Method (JIS 5201) Rapid Change of Temperature △R: ± 1.0% Without distinct damage in appearance -55 ~125℃ 100cycles, 15 min at each extreme condition Moisture with Load △R: ± 5.0% Without distinct damage in appearance 40 ± 2℃ with relative humidity 90% to 95%. D.C. rated voltage for 1.5 hours ON and 0.5 hours OFF. Cycle repeated 1,000 hours Load Life △R: ± 5.0% Without distinct damage in appearance Rated voltage for 1.5 hours followed by a pause 0.5 hour at 70 ± 2℃. Cycle repeated 1000 hours Low Temperature Store △R: ± 5.0% Without distinct damage in appearance Store temperature:-55 ± 3℃ for total 1,000 hours High Temperature Store △R: ± 5.0% Without distinct damage in appearance Store temperature: 150 ± 2℃ for total 1,000 hours
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Recommend Land Pattern Dimensions : Notice: We recommend there is no circuit design between pads to avoid circuit short. Packaging : Tape packaging dimensions Remark: Leader tape length≧30 cm( 150 Hollow carrier cavity)
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Reel dimensions Numbers of Taping : 4,000 pieces /reel The following items shall be marked on the reel. (1) Type designation. (2) Quantity (3) Manufacturing date code (4) Manufacturer’s name Peel force of top cover tape The peel speed shall be about 300 mm/min. The peel force of top cover tape shall be between 0.1 to 0.7 N.
DOCUMENT : SRK56-NH REVISION : A1 Current Sensing Resistor Care Note : Care note for storage (1) Chip resistor shall be stored in a room where temperature and humidity must be controlled. (temperature 5 to 35℃, humidity 45 to 85% RH) However, a humidity keep it low, as it is possible. (2) Chip resistor shall be stored as direct sunshine doesn’t hit on it. (3) Chip resistor shall be stored with no moisture, dust, a material that will make solderability inferior, and a harmful gas (Chloridation hydrogen, sulfurous acid gas, and sulfuration hydrogen) . Care note for operating and handling (1) It is necessary to protect the edge and protection coat of resistors from mechanical stress. (2) Handle with care when printing circuit board (PCB) is divided or fixed on support body, because bending of printing circuit board (PCB) mounting will make mechanical st ress for resistors. (3) Resistors shall be used with in rated range shown in specification. Especially, if voltage more than specified value will be loaded to resistor, there is a case it will make damage for machine because of temperature rise depending on generating of heat, and increase resistance value or breaks. (4) In case that resistor is loaded a rated voltage, it is necessary to confirms temperature of a resistor and to reduce a load power according to load reduction curve, because a temperature rise of a resistor depends on influence of heat from mounting density and neighboring element. (5) Observe Limiting element voltage and maximum overload voltage specified in each specification (6) If there is possibility that a large voltage (pulse voltage, shock voltage) charge to resistor, it is necessary that operating condition shall be set up before use.