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FUSIBLE METAL FILM   CEMENT TYPE   WIRE WOUND  CHIP RESISTORS   

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FUSIBLE METAL FILM RESISTORS

RFS Nonflame fusible Metal Film Resistors. There are some similarities between Resistors and Fuses in material and structure. Fusible Resistors contain both functions, as being resistor in normal condition and changed into fuse while abnormal current comes in to protect machine and equipment. Since two functions performed by one resistor, the cost therefore saved. Our RFS Fusible Resistors series are produced with precision technique, enabling preisefusing time and stabilized, aiming to reach best quality resistors.

Features :

  1. It is suitable for protecting circuit boards and design.
  2. Small in size with competitive price.
  3. Non-combustible insulatin coat. " Freon" Proof and resistant to high temperature.
  4. Low temperature coefficient.(under ±200ppm/°C)
  5. Uniform in fusing time.
TYPE L ± 1.0 D ± 0.5 H ± 3 d ± 0.2 Tolerance Resistance Range
RFS 1/4W 6.0 2. 28 0.6 J 1 Ohm ~ 470 Ohm
RFS 1/2W 9.0 3.6 27 0.6 J 1 Ohm ~ 470 Ohm
RFS 1W 11.0 4.0 26 0.8 J 1 Ohm ~ 470 Ohm
RFS 2W 15.0 5.0 28 0.8 J 1 Ohm ~ 470 Ohm

*note: RFS 1/4WJ = FSR25, RFS 1/2W = FSR33, RFS 1W = FSR 100, RFS 2W = FSR200

TYPE X 40 X 30 X 25 X 18 X 15 X 12 Fusing Time
RFS 1/4W 0.1 ~ 0.18 0.2 ~ 0.43 0.47 ~ 0.91 - 1 ~ 4.7   2.7K ~ 10K 5.1 ~ 2.2K Under 30 sec.
RFS 1/2W   -   - 0.1 ~ 0.43   - 0.47 ~ 2     1.2K ~ 10K 2.2 ~ 1K Under 30 sec.
RFS 1W   - 0.1 ~ 0.18 0.2 ~ 0.43   - 0.47 ~ 2     1.2K ~ 10K 2.2 ~ 1K Under 30 sec.
RFS 2W   -   -   - 1 ~ 3.3    1.2k ~ 3K            3.9 ~ 1K Under 30 sec.

 

ELECTRICAL PERFORMANCE

 

TEST ITEMS CONDITION SPEC
Operating Temp -40 ~ 240°C  
Resistance Temp Coeff -30°C ~ 150°C ± 200PPM/°C
Short Time Overload 4 times of rated wattage for 5 sec ± 2%
Insulation Resistance 500V megger 1.000 M Ohm
Temp Cycle -30°C ~ 85°C for 5 cycles ± 1%
Load Life 25°C on off cycle 1.000 hrs ± 5%
Moisture Proof Load Life 40°C 95% RH off cycle 1.000hrs ± 5%
Solder Pot 270°C for 3 sec ± 1%
Incombustibility 16 times of rated wattage for 5 min not flammable

 

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CEMENT TYPE  RESISTORS

Wire Wound Resistor, Cement Type SQ

Wire wound resistors are made by winding the resistance wire on the alkaliless ceramic core, then coated with non-corrosive, heat-proof and humidity-proof material. Cermaic type is sealed with special nonflame cement in the ceramic package.

Features :

  1. Small dimension, excelent stability in high temperature, resistant to humidity and shock with economic price.
  2. Completely insulated character suitable for printed circuit board.
  3. Precise resistance value with better life proof.
  4. In high resistance value, the winding core will be replaced by Metal Oxide Film cutting core (RS).
  5. Super heat dissipation; small linear temperature coefficient.
  6. Instant overload capability; low noise figure and without annual shift on resistance value.

 
TYPE DIMENSION (mm) RESISTANCE RANGE(Ohm) MAX WORKING VOLTAGE
SQP W±1 H±1 L±1.5 d±1 SQP RS + SQP
2W 7 7 18 5 0.1-82   15V
3W 8 8 22 0.65 0.1-180 181-33K 350V
5W 10 9 22 0.8 0.1-180 181-50K 350V
7W 10 9 35 0.8 0.1-430 431-60K 600V
10W 10 9 48 0.8 0.1-470 471-50K 750V
16W 12.5 11.5 48 0.8 0.5-600 601-150K 1000V
20W - 25W 14 13.5 60 0.8 0.5-1K 1.1-150K 1000V

Notes :

  1. Max overload voltage is 2 times of Max working voltage.
  2. Too low or too high ohmic value can be supplied only case by case.
  3. Resistance value under 0.5 ohm, the tolerance shall be +-10%.
  4. Max working voltage is fit for all SQ types.
TYPE DIMENSION (mm) RESISTANCE RANGE(Ohm)
SQZ L±1.5 W±1 H±1 P±1.6 P1 P2 P3 P4 H1± H2± SQZ RS+SQZ
5W 25(28) 10 10 9.5(15) 4.2 2 5 1.5 1 1 0.1-430 131-50K
7W 36 10 10 20 4.2 2 5 1.5 25 10.5 0.1-430 431-50K
10W 48 10 10 32 4.2 2 5 1.5 25 10.5 0.2-470 471-50K
15W 48 12.5 12 32 4.2 2 5 1.5 25 10.5 1-600 601-150K
20W-25W 60 15 13 42 7 6 10 2.7 26 10.5 1-1K 1.1-150K

 

TYPE

DIMENSION                          (mm)

 RESISTANCE RANGE (Ohm)
SQM H±1.5 W±1 S±1 SQM RS+SQM
5W 25 13 9 0.1-180 181-50K
7W 39 13 9 0.1-430 431-47K
10W 51 13 12 0.1-470 471-47K
10WS 35 16 12 0.1-430 431-47K

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WIREWOUND RESISTORS

FLAME PROOF COATING TYPE

KNP (STANDARD TYPE)

NKNP ( NON-INDUCTIVE)

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Feature:

  1. 1. The resistor is fabricated using a sutable fibreglass        or ceramic core with the resistance wire securely        crimped  to the terminals.
  2. 2.  Small in size comparatively than other kin
  3.       resistor.
  4. 3.   Electrical and mechanical stability and high
  5.       reliability.
  6. 4.   Tolerance of 5%, 10% are standard.

 

 

PERFORMANCE

 

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Temparature Coefficient ± 300PPM°C
Insulation Resistance >100M Ohm
Load Life(1000 hours) ± (5% + 0.05 Ohm)
Short - Time Overload ± (2% + 0.05 Ohm)
Dielectric Withstanding Voltage ± (2% + 0.05 Ohm)
Moisture Resistance ± (5% + 0.05 Ohm)
Shock and vibration ± (1% + 0.05 Ohm)
Effect of Soldering ± (2% + 0.05 Ohm)
Incombustibility EX16 Times Voltage. 5min

 

DIMENSIONS

 

MECHIANICAL DIMENSIONS

TYPE RATED WATTS

DIMENSIONS (mm)

RESISTANCE RANGE (Ohm)
D±1 L±1 H±3 d±0.05
KNP-1W 1W 4.0 11 26 8.0 0.1-100
KNP-2W 2W 5.0 15 28 8.0 0.1-120
KNP-3W 3W 6.0 17 38 8.0 0.1-180
KNP-4W 4W 6.0 17 38 8.0 0.1-180
KNP-5W 5W 8.0 24 38 8.0 0.1-300
KNP-6W 6W 8.0 24 38 8.0 0.1-300
KNP-7W 7W 8.0 24 38 8.0 0.1-300
KNP-8W 8W 8.0 40 38 8.0 0.3-2K
KNP-10W 10W 8.0 52 38 8.0 0.3-2K

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CHIP RESISTORS

 

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Type Inch mm Rated Power Max Working voltage Max Overload voltage

Resistance Range

Dimensions (mm)

 Chip Jumper Type Pieces a reel
L W C D t
CR 05 0402 1005 1/16W 0.063w 50V 100V J.F10 Ohm
~
2.2M Ohm		 1.0±0.05 0.5±0.05 0.2±0.1 0.25±0.1
       0.05		 0.35±0.05 CJ 05 10,000
CR16 0603 1608 1/10W 0.1w 50V 100V

J1.0Ohm ~
10MOhm

G1.0Ohm ~
10MOhm

F1.0Ohm ~
2.2MOhm

 1.6±0.1 0.8±0.1 0.3±0.2 0.3±0.2 0.45±0.1 CJ06 5,000
CR10 0805 2012 1/8W 0.125w 150V 200V
300V		 2.0±0.1 1.25±0.1 0.4±0.2 0.4±0.2 0.55±0.05 CJ 10 5,000
CR18 1206 3216 1/4W 0.25w 200V 400V 3.2±0.15 1.6±0.15 0.45±0.25 0.5±0.25 0.55±0.05 CJ 18 5,000
CR14 1210 3225 1/4W 0.25w 200V 400V 3.2±0.15 2.5±0.15 0.5±0.25 0.5±0.25 0.55±0.15 CJ 14 4,000
CR12 2010 5025 1/2W 0.5w 200V 400V 5.0±0.15 2.5±0.15 0.6±0.25 0.6±0.25 0.55±0.15 CJ 12 4,000
CR01 2512 6332 1W 200V 400V 6.3±0.15 3.2±0.15 0.6±0.25 0.6±0.25 0.55±0.15 CJ 01 4,000

 

TYPE RATED CURRENT OVERLOAD RESISTANCE
CR 05 1A 5A 1sec 50m Ohm below
CR16 1A 5A 1sec 50m Ohm below
CR10 1A 5A 1sec 50m Ohm below
CR18 2A 10A 1sec 50m Ohm below
CR14 2A 10A 1sec 50m Ohm below
CR12 2A 10A 1sec 50m Ohm below
CR01 2A 10A 1sec 50m Ohm below
J ± 5%
G ± 2%
F ± 1%		 *The values outside of above resistance range are available subjects to conditions.

 

CHARACTERISTICS

Item Specifications Test method
Operating temp. range -55°C ~ 125°C -
Temperature cycling ±(1%+0.05 Ohm) less than ±(1%+0.05 Ohm) -55°C ~ 125°C
Short time overload ±(2%+0.1 Ohm) Rated voltage X 2.5 for 5 seconds
Moisture storage ±(3.0%+0.1 Ohm) less than ±(3.0%+0.1 Ohm) 40°C   90~95%RH
Moisture load life ±(3.0%+0.1 Ohm) less than ±(3.0%+0.1 Ohm) 40°C   90~95%RH
Load life ±(3.0%+0.1 Ohm) less than ±(3.0%+0.1 Ohm) 70°C
Solderability to be cover more than 95% 235±5°C for 2 seconds
Resistance to soldering heat ±(1%+0.05 Ohm) 260±5°C for 5 seconds
Terminal strength ±(1%+0.05 Ohm) less than ±(1%+0.05 Ohm) JIS C5202 6.14

 

CHARACTERISTIC DATA

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T.C.R.

TYPE RESISTANCE T.C.R.(ppm/°C)
J(± 5%), G(± 2%) F(± 1%)
CR05 10 Ohm ~ 2.2M Ohm ± 250 ± 250
CR16
CR10
CR18
CR14
CR12
CR01		 <10 Ohm

10 Ohm ~ 10M Ohm

 ± 350

± 200

 ± 100

 

LOW IMPEDANCE CHIP JUMPER

1.    OUTLINE

          Generally, chip jumper for SMT application consists of conductive material printed on ceramic substrate and, over             coating is made over conductive part for insulation except terminal for soldering. This type of chip jumper uses            Silver-Paradium as conductive material and, this results a comparatively high ipedance compared with jumper wire            made of copper material.

          Thanks to the cooperation of one of the equipment manufacturers, we have succeeded to develop a new chip             jumper which makes it possible to put solder completely covering chip jumper itself in the process of soldering             and, this resulted a very low impedance compared with conventional type chip jumper.

2.    FEATURE

In the process of dipping in solder bath, solder covers whole surface of this chip jumper and this results a very low impedance compared with conventional type of chip jumper.

However, please note that the above is an additive effect and, original impedance of this new chip jumper itself is low enough. So, it contribute to make impedance lower even in reflow sodering method.

For checking, SMT circuit,this new chip jumper is suitable for use as check-land to contact by probe of circuit tester. (According to our experience, probe contact is good enough without cleaning by flux.)

In the soldering process, whole conductive area is to be covered by solder, therefore, solderabilit problem caused by flux-gas in dinning process is negligible.

Dimensions of this new chip jumper are exactly same as the conventional chip jumper and no special chip mounted is required.

3.   MAIN APPLICATION

Audio circuit, Grounder circuit and whatever other circuits which require low impedance.As check-land to make contact by probe of circuit tester.

CHARACTERISTICS

ITEM CHARACTERISTICS TEST METHOD (JIS C-5202)
Resistance to soldering heat Less than 20m Ohm 260±5°C 10±1sec
Solderability More than 95% of terminal area to be covered by solder 230±5°C 3±0.5sec
Terminal strength Less than 20m Ohm Bending width : 5mm
Anti-solvent Should be no damage on surface Test Method 215
Resistance value Less than 20m Ohm Applied voltage A.25°C
Insulation Over 1000M Ohm Between terminal and center of back face
Over 1000M Ohm Between terminal and center of protective coating
Voltage Less than 20m Ohm 500V AC 60second
Temperature cycle Less than 20m Ohm -55/+125°C     5 cycles

 

LOW IMPEDANCE CHIP JUMPER TECHNICAL INFORMATION

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CHIP RESISTORS NETWORK

DIMENSION AND POWER RATING
  1. CONFIGURATION
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  2. CIRCUIT CONSTRUCTION
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  3. DIMENSION
    TYPE L W t a b1 b2 c p
    CRN 164 3.2±0.2 1.6±0.2 0.5±0.1 0.3±0.2 0.42±0.1
           0.05    		 0.61±0.1
             0.05    		 0.3Max 0.8±0.05
  4. INDICATION
    Indication of value is made by 3 digit figures on top side. Significant value is made by two former digits on  E24 series, and zero number is made by last digit.
  5. RATING TABLE
    TYPE RATED POWER TOLERANCE R. RANGE MAX. W.V RATED TEMP. AMBIENT T.C.R. ELEMENTS
    CRN 164 0.063W J(±5%) 10 Ohm ~
    1M Ohm    		 50V 70°C -55°C 
    ~
    125°C     		± 200 ppm/°C 4

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CONSTRUCTION

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  1. High Purity Alumina
  2. Ag/Pd 1st Conductor
  3. RuO2 Resistor Material
  4. Glass Protective Coating
  5. Ni 2nd Conductor
  6. Sn/Pb 3rd Conductor

PACKAGING SPECIFICATIONS

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TYPE A B C D E F G H J t
CR05 1.13
±
0.05		 0.63
±
0.05		 2.0
±
0.05		 1.0
±
0.05		 2.0
±
0.05		 1.5
+0.1
-0		 1.75
±
0.1		 3.5
±
0.05		 8.0
±
0.3		 0.55
±
0.1
CR16
CJ06		 1.9
±
0.2		 1.1
±
0.2		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 3.5
±
0.05		 8.0
±
0.3		 0.7
±
0.1
CR10
CJ10		 2.4
±
0.2		 1.65
±
0.2		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 3.5
±
0.05		 8.0
±
0.3		 0.9
±
0.1
CR18
CJ18		 3.6
+0.1
-0.15		 2.0
+0.1
-0.15		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 3.5
±
0.05		 8.0
±
0.3		 0.9
±
0.1
CR14 3.5
±
0.1		 2.9
±
0.1		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 3.5
±
0.05		 8.0
±
0.3		 0.9
±
0.1
CR12 5.3
±
0.1		 2.9
±
0.1		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 5.5
±
0.05		 12.0
±
0.2		 1.0
±
0.1
CR01 6.6
±
0.1		 3.4
±
0.1		 4.0
±
0.1		 2.0
±
0.05		 4.0
±
0.1		 1.5
+0.1
-0		 1.75
±
0.1		 5.5
±
0.05		 12.0
±
0.2		 1.0
±
0.1

 

Tape Reel Dimensions

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. CR05 CR16, 10, 18, 14 CR12 CR01
A ø178±2 ø178 +2 -1
F 9.0±0.3 13.5±0.3
G 11.4±1.0 15.9±0.3

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