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Metal glaze thick film flat chip resistors KOA RK73H1JTTD4991F with triple layer electrode structure
Metal glaze thick film flat chip resistors KOA RK73H1JTTD4991F with triple layer electrode structure
Specifications
Power(Watts) :
100mW
Resistance :
4.99kΩ
Voltage Rating :
75V
Temperature Coefficient :
±100ppm/℃
Operating Temperature :
-55℃~+155℃
Type :
Thick Film Resistor
Tolerance :
±1%
Description :
100mW 4.99kΩ 75V ±100ppm/℃ Thick Film Resistor ±1% 0603 Chip Resistor - Surface Mount RoHS
Mfr. Part # :
RK73H1JTTD4991F
Model Number :
RK73H1JTTD4991F
Package :
0603
Description

THICK FILMPRECISION RK73H

Flat Chip Resistors (Precision Grade)

Product Overview

The RK73H series offers high-precision thick film flat chip resistors utilizing a metal glaze thick film for excellent heat and weather resistance. Designed for high stability and reliability with a triple-layer electrode structure, these resistors are suitable for various automatic mounting machines and soldering processes (flow and reflow). They are available in lead-free termination options meeting EU-RoHS requirements and are AEC-Q200 qualified (excluding 1F type).

Product Attributes

  • Brand: KOA
  • Product Type: Thick Film (Precision) Flat Chip Resistors
  • Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
  • Certifications: EU-RoHS compliant (lead-free termination), AEC-Q200 qualified (Exemption 1F)
  • Material: Alumina substrate, Metal glaze thick film, Triple-layer electrode

Technical Specifications

Type (Inch Size Code) Dimensions (mm) L x W x D Weight (g/1000pcs) Power Rating Resistance Tolerance Resistance Range () Max. Working Voltage Max. Overload Voltage Operating Temp. Range T.C.R. (10/K) Packaging & Q'ty/Reel (pcs)
1F (01005) 0.40.02 x 0.20.02 x 0.110.03 0.04 0.03W D:0.5% F:1% 1091k4 (250), 100k2M4 (200) 20V 30V 55125 250 (1091k), 200 (100k2M) TX: 40,000
1H (0201) 0.60.03 x 0.30.03 x 0.150.05 0.14 0.05W D:0.5% F:1% 101M (200), 1010M4 (400) 25V 50V 55155 200 (101M), 400 (19.1, 1010M) TBL: 10,000, TCM: 15,000
1E (0402) 1.00.1/0.05 x 0.50.05 x 0.250.05/0.1 0.68 0.1W D:0.5% F:1% 101M (100), 1.02M10M (200) 75V 100V 55155 100 (101M), 200 (19.76, 1.02M10M) TPL: 20,000, TP: 10,000
1J (0603) 1.60.2 x 0.80.1 x 0.30.1 2.14 0.1W D:0.5% F:1% 101k (100), 1.02k1M (100), 1.02M10M (200) - - 55155 100, 200 TP: 10,000, 5,000
2A (0805) 2.00.2 x 1.250.1 x 0.30.2/0.1 4.54 0.25W D:0.5% F:1% 101M (100), 1.02M10M (200, 400) 150V 200V 55155 100, 200, 400 TP: 10,000, 5,000, 4,000
2B (1206) 3.20.2 x 1.60.2 x 0.40.2/0.1 9.14 0.25W D:0.5% F:1% 101M (100), 19.76 (200), 1.02M5.6M (400), 5.62M10M (400) 200V 400V 55155 100, 200, 400 5,000, 4,000
2E (1210) 2.60.2 x x 0.50.1 - 0.5W D:0.5% F:1% 101M (100), 19.76 (200), 1.02M5.6M (400), 5.62M10M (400) - - 55155 100, 200, 400 5,000, 4,000
W2H (2010)1 5.00.2 x 2.50.2 x 0.650.15 24.3 0.75W D:0.5% F:1% 101M (100), 19.76 (200), 1.02M5.6M (400), 5.62M10M (400) - - 55155 100, 200, 400 4,000
W3A (2512)1 6.30.2 x 3.10.2 x 0.40.2/0.1 37.1 1W D:0.5% F:1% 101M (100), 19.76 (200), 1.02M5.6M (400), 5.62M10M (400) 200V 400V 55155 100, 200, 400 4,000
W3A2 (2512)1 6.30.2 x 3.10.2 x 0.40.2/0.1 - 2W D:0.5% F:1% 101M (100), 19.76 (200), 1.02M5.6M (400), 5.62M10M (400) 200V 400V 95 100, 200, 400 4,000

Performance

Test Items Performance Requirements R(0.1) Test Methods Limit Typical
Resistance Within specified tolerance 25 - -
T.C.R. Within specified T.C.R +25/55 and +25/+125 - -
Overload (Short time) 2 (1:1F, 0.5:another) Rated voltage2.5 for 5s (1E, 2B, W3A2: Rated voltage2 for 5s) 1:1F, 0.5:another -
Resistance to soldering heat 1 (1:1FW3A (10R1M), 3:1HW3A (R10, R1M)) 2605, 10s1s 0.5 (1:1FW3A (10R1M)), 1 (1:1HW3A (R10, R1M)) -
Rapid change of temperature 1 (1:1F, 0.5:another) 55 (30min.)/125 (30min.) 100 cycles 0.5 (1:1F), 0.3 (another) -
Moisture resistance 2 (1J, 2A, 2B), 3 (another) 402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle) 0.75 (1J, 2A, 2B), 1.5 (1F), 1 (another) -
Endurance at 70 2 (1J, 2A, 2B), 3 (another) 702, 1000h (1.5h ON/0.5h OFF cycle) 0.75 (1J, 2A, 2B), 1 (another) -
High temperature exposure 1 +125, 1000h (1F); +155, 1000h (1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2) 0.5 (1F), 0.3 (another) -

Derating Curve

For resistors operated at an ambient temperature of 70 or above, a power rating shall be derated in accordance with the above derating curve. For resistors operated at a terminal part temperature described for each size or above, a power rating shall be derated in accordance with the derating curve.

Precautions for Use

  • The substrate of chip resistors is alumina. Cracks may occur at the connection of solder (solder fillet portion) due to the difference of the coefficient of thermal expansion from a mounting board when heat stress like heat cycle, etc. are repeatedly given to them. Care should be taken to the occurrence of the cracks when the change in ambient temperature or ON/OFF of load is repeated, especially when large types of W2H/W3A/W3A2 which have large thermal expansion and also self heating. The occurrence of the crack by heat stress may be influenced by the size of a pad, solder volume, heat radiation of mounting board etc., so please pay careful attention to designing when a big change in ambient temperature and conditions for use like ON/OFF of load can be assumed.
  • Care should be taken that RK73H1F may be damaged when static electricity occurs and is applied in the equipment.

2409272202_KOA-RK73H1JTTD4991F_C202909.pdf

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Metal glaze thick film flat chip resistors KOA RK73H1JTTD4991F with triple layer electrode structure

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Product Detail
Power(Watts) :
100mW
Resistance :
4.99kΩ
Voltage Rating :
75V
Temperature Coefficient :
±100ppm/℃
Operating Temperature :
-55℃~+155℃
Type :
Thick Film Resistor
Contact Supplier
Metal glaze thick film flat chip resistors KOA RK73H1JTTD4991F with triple layer electrode structure

Beijing Silk Road Enterprise Management Services Co., Ltd.

Verified Supplier
1 Years
beijing, beijing
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer
Main Products :
Crystals, Delay Lines, Aluminum - Polymer Capacitors
Employee Number :
>>300
Certification Level :
Verified Supplier
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