No.:Date:

TWMC−K−HTS-0001 /4
2023.1.11

Data sheet
Title:FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDETERMINATION

Style:TWMC32, 50, 63

RoHS COMPLIANCE ITEM
Halogen and Antimony Free
Note: ・Stock conditions
Temperature: +5C  +35C
Relative humidity: 25%  75%
The period of guarantee: Within 2 year from shipment by the company.
Solderability shall be satisfied.

・Product specification contained in this data sheet are subject to change at any
time without notice・If you have any questions or a Purchasing Specification for any quality
agreement is necessary, please contact our sales staff.

Hokkaido Research Center
Approval by: T. Sannomiya
Drawing by: M. Shibuya

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 1/10

1. Scope
1.1 This data sheet covers the detail requirements for fixed chip resistors; rectangular type & wide termination, style of
TWMC32, 50, 63..
1.2 Applicable documents
JIS C 5201−1: 2011, JIS C 5201−8: 2014, JIS C 5201−8−1: 2014
IEC60115−1: 2008, IEC60115−8: 2009, IEC60115−8−1: 2014
2. Classification
Type designation shall be the following form.
(Example)
1)
TWMC
32
1202
F
TP
−
1
2
3
4
5
6
Style
1 Fixed thick film chip resistors; rectangular type and wide termination
2 dimension
3 Temperature coefficient of resistance−(Dash)4 Rated resistance
1202

Style

Standard
Example;4digit. 1202→12k

5 Tolerance on rated resistance
F
1%
J
5%

6 Packaging form
B
TPTE

Bulk (loose package)
Paper taping
Embossed taping

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 2/10

3. Rating
3.1 The ratings shall be in accordance with Table−1.
Table−1
Style

Rated
dissipation(W)

TWMC320.75

Standard

200

TWMC501.0Standard

200

TWMC632.0Standard

200

Rated resistance
range ()Temperature coefficient ofresistance (10−6 / °C)

1.01M
1.01M
1.01M
1.01M
1.01M
1.01M

Style

Limiting element
voltage (V)Insulation voltage(V)

Category temperature
range (°C)

TWMC32
TWMC50
TWMC63200

500−55+155

3.2 Climatic category
55/155/56

3.3 Stability class
5%

Lower category temperature
Upper category temperature
Duration of the damp heat, steady state test

Preferred
number series
for resistors
E24, 96
E24
E24, 96
E24
E24, 96
E24

Tolerance on
rated resistanceF(1%)
J(5%)
F(1%)
J(5%)
F(1%)
J(5%)− 55 °C+155 °C
56day

Limits for change of resistance:−for long−term tests±(5%+0.1)−for short−term tests±(1%+0.05)

3.4 Derating
The derated values of dissipation at temperature in excess of 70 °C shall be as indicated by the following curve.
100

Percentage of the
rated dissipation
Area of recommended
operation

(%)
0
−55

70

155

Ambient temperature (°C)

Figure−1 Derating curve

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 3/10

3.5 Rated voltage
d. c. or a. c. r. m. s. voltage calculated from the square root of the product of the rated resistance and the rated dissipation.
E : Rated voltage (V)
E =
P · R
P : Rated dissipation (W)R : Rated resistance ()Limiting element voltage can only be applied to resistors when the resistance value is equal to or higher than the criticalresistance value.
At high value of resistance, the rated voltage may not be applicable.
4. Packaging form
The standard packaging form shall be in accordance with Table−2.
Table−2
Symbol

Packaging form

B
TP
TE

Bulk (loose package)
Paper taping
8mm width, 4mm pitches
Embossed taping
12mm width, 4mm pitches

Standard packaging
quantity / units
1,000 pcs.
5,000 pcs.
4,000 pcs.

Application
TWMC32.50,63
TWMC32
TWMC50,63

5. Dimensions
5.1 The resistor shall be of the design and physical dimensions in accordance with Figure−2 and Table−3.

d
d

H

L

c
c

W

Figure−2
Table−3
Style
TWMC32
TWMC50
TWMC63L
1.6±0.2
2.50.15
3.2±0.2W
3.2±0.2
5.00.2
6.3±0.2H
0.55±0.10
0.550.10
0.550.10c
0.5±0.25
0.60.2
0.60.2

Unit: mmd
0.5±0.25
0.60.2
0.60.2

5.2 Net weight (Reference)
Style
Net weight(mg)
TWMC32
9
TWMC5025
TWMC6340

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 4/10

6. Marking
The nominal resistance shall be marked in 4 digits and marked on over coat side.
Marking example
Contents
Application
1202
120×10 2 ［］ → 12 ［k］E24
2R20
2. 2 ［］Less than 100 of E24
35623
562×10 ［］ → 562［k］E96
12R7
12.7 ［］Less than 100 of E96
7. Performance
7.1 The standard condition for tests shall be in accordance with Sub−clause 4.2, JIS C 5201−1: 2011.
7.2 The performance shall be satisfied in Table−4.
Table−4(1)No.
Test items
Performance requirements
Condition of test (JIS C 5201−1)
1
Visual examination
As
in
4.4.1
Sub−clause 4.4.1
The marking shall be legible, as
Checked by visual examination.
checked by visual examination.
2
Dimension
Sub−clause 4.4.2
As specified in Table−3 of thisspecification.
Resistance
As in 4.5.2
Sub−clause 4.5
The
resistance
value
shall
correspond with the rated resistancetaking into account the specified
tolerance.
3
Voltage proof
Sub−clause 4.7
No breakdown or flash over
Method: 4.6.1.4
Test voltage: Alternating voltage with a peakvalue of 1.42 times theinsulation voltage.
Duration: 60 s ± 5 s
Insulation resistanceR1G
Test voltage: Insulation voltage
Duration: 1 min.
4
Solderability
As in 4.17.4.5
Sub−clause 4.17
The terminations shall be covered
Without ageing
Flux: The resistors shall be immersed in a with a smooth and bright solder
coating.
non−activated soldering flux for 2s.
Bath temperature: 245 °C ± 5 °C
Immersion time: 2 s ± 0.5 s
5Mounting
Sub−clause 4.31
Substrate material: Epoxide woven glass
Overload(in the mounted state)

Solvent resistancemarkingofSub−clause 4.13
The applied voltage shall be 5 times the rated
dissipation or twice the limiting element
voltage, whichever is the less severe.
Duration: 2 s
No visible damage
Visual examination
R  ± (1%+0.05)Resistancethe Sub−clause 4.30
Legible marking
Solvent: 2−propanol
Solvent temperature: 23 °C ± 5 °C
Method 1
Rubbing material: cotton wool
Without recovery

Product specification contained in this data sheet are subject to change at any time without notice.
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Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:No
6

7

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 5/10
Table−4(2)Condition of test (JIS C 5201−1)
Mounting
Sub−clause 4.31
Substrate material: Epoxide woven glass
Bound strength of the end face Sub−clause 4.33
plating
Bent value: TWMC32: 3mm
TWMC50,63: 1 mm
Resistance
Final measurements
Sub−clause 4.33.6
Visual examination
Resistance to soldering heat
Sub−clause 4.18
Solder temperature: 260 °C ± 5 °C
Immersion time: 10 s ± 0.5 s
Visual examination
Test items

Component solvent resistance8

Mounting

Adhesion

Rapid change temperature

ResistanceSub−clause 4.29
Solvent: 2−propanol
Solvent temperature: 23 °C ± 5 °C
Method 2
Recovery: 48 h
Visual examination
ResistanceSub−clause 4.31
Substrate material: Epoxide woven glass
Test substrate: Figure−3
Sub−clause 4.32
Force: 5 N
Duration: 10 s ± 1 s
Visual examination
Sub−clause 4.19
Lower category temperature: −55 °C
Upper category temperature: +155 °C
Duration of exposure at each temperature: 30
min.
Number of cycles: 5 cycles.
Visual examination
Resistance

Performance requirementsR  ± (1%+0.05)No visible damage

As in 4.18.3.4
No sign of damage such as cracks.
R  ± (1%+0.05)No visible damage
R  ± (1%+0.05)No visible damage

No visible damage
R  ±(1%+0.05)Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No
9

10

11

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 6/10
Table−4(3)Condition of test (JIS C 5201−1)
Sub−clause 4.23
Sub−clause 4.23.2
Test temperature: +155 °C
Duration: 16 h
−Damp heat, cycle
Sub−clause 4.23.3(12+12hour cycle)
Test method: 2First cycle
Test temperature: 55 °C[Severity(2)]−ColdSub−clause 4.23.4
Test temperature −55 °C
Duration: 2h−Damp heat, cycle
Sub−clause 4.23.6(12+12hour cycle)
Test method: 2
Remaining cycle
Test temperature: 55 °C[Severity (2)]
Number of cycles: 5 cycles−D.C. load
Sub−clause 4.23.7
The applied voltage shall be the rated voltage
or the limiting element voltage whichever isthe smaller.
Duration: 1 min.
Visual examination
Resistance
Mounting
Sub−clause 4.31
Substrate material: Epoxide woven glass
Endurance at 70 °C
Sub−clause 4.25.1
Ambient temperature: 70 °C ± 2 °C
Duration: 1000 h
The voltage shall be applied in cycles of 1.5 h
on and 0.5 h off.
The applied voltage shall be the rated voltage
or the limiting element voltage whichever isthe smaller.
Examination at 48 h , 500 h and1000 h:Visual examination
Resistance
Mounting
Sub−clause 4.31
Substrate material: Epoxide woven glass
Variation of resistance with Sub−clause 4.8
temperature−55 °C / +20 °C+20 °C / +155°C
Test items
Climatic sequence−Dry heat

Performance requirements

No visible damage
R  ± (5%+0.1)No visible damage
R  ± (5%+0.1)As in Table−1

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:No
12

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 7/10

Test items
Mounting
Damp heat, steady state

13

Dimensions (detail)

Table−4(4)Performance requirements
Condition of test (JIS C 5201−1)
Sub−clause 4.31
Substrate material: Epoxide woven glass
Sub−clause 4.24
Ambient temperature: 40 °C ± 2 °C
Relative humidity : 93 +2−3 %a) 1st group: without voltage applied.
b) 2nd group: The d. c. voltage shall beapplied continuously.
The voltage shall be accordance with
Sub−clause 4.24.2.1 b). without polarizing
voltage [4.24.2.1, c)]No visible damage
Visual examination
Legible markingR  ± (5%+0.1)ResistanceSub−clause 4.4.3

As in Table−3

Mounting

Sub−clause 4.31
Substrate material: Epoxide woven glass
Endurance at upper category Sub−clause 4.25.3
temperature
Ambient temperature:155 °C ± 2 °C
Duration: 1000 h
Examination at 48 h, 500 h and1000 h:Visual examination
ResistanceNo visible damage
R  ± (5%+0.1)Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 8/10

8. Taping
8.1 Applicable documents JIS C 0806−3: 2014, EIAJ ET−7200C: 2010
8.2 Taping dimensions
8.2.1 Paper taping (8mm width, 4mm pitches)
Taping dimensions shall be in accordance with Figure−3 and Table−5.
Unit: mm40.1
1.5 +0.1
0Sprocket holet1

20.051.750.1

B

80.2

A

t2

Carrier cavity

40.1

3.50.05
Direction of unreeling

Figure−3
Table−5AB
2.00±0.15
3.6±0.2

Style
TWMC32t1
0.8±0.1±±±

Unit: mmt2
1.0max.

8.2.2 Embossed taping dimensions shall be in accordance with Figure−4 and Table−6.
Unit: mm
0.3 max.
20.05
Sprocket hole

1.5+0.1
01.750.1

40.1

Carrier cavity

t1

Style
TWMC50
TWMC63A
3.1±0.2
3.6±0.2

W

B

E

A

40.1

Direction of unreeling

Figure−4
Table−6BW
5.5±0.2
12.0±0.3
6.9±0.2
12.0±0.3E
5.5±0.05
5.5±0.05

Unit: mmt1
1.1±0.15
1.1±0.15

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 9/10

1). The cover tapes shall not cover the sprocket holes.
2). Tapes in adjacent layers shall not stick together in the packing.
3). Components shall not stick to the carrier tape or to the cover tape.
4). Pitch tolerance over any 10 pitches ±0.2mm.
5). The peel strength of the top cover tape shall be with in 0.1N to 0.5N on the test method as shown in the following
TWMC32Figure−5,TWMC50,63 Figure−6.
6). When the tape is bent with the minimum radius for TWRM32: 25 mm, or TWRMC50,63: 30 mm, the tape shall not bedamaged and the components shall maintain their position and orientation in the tape.
7). In no case shall there be two or more consecutive components missing.
The maximum number of missing components shall be one or 0.1%, whichever is greater.
8). The resistors shall be faced to upward at the over coating side in the carrier cavity.
Top cover tape
Carrier tapePeel−off(About 300mmmin)

165to180
Direction of unreeling

Figure−5

Top cover tape
Carrier tape165to180

Peel−off(About 300mmmin)

Direction of unreeling

Figure−6

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11

Title:

No: TWMC−K−HTS-0001/4
FIXED CHIP RESISTORS; RECTANGULAR TYPE & WIDE TERMINATIONTWMC32, 50, 63
Page: 10/10

8.3 Reel dimension
Reel dimensions shall be in accordance with the following Figure−7 and Table−7.
Plastic reel (Based on EIAJ ET−7200C)
Unit: mm

0

+1
60 0

130.220.5

180 −1.5

Marking A

210.8

Marking B

A

B

Figure−7
Table−7B

Unit: mm
A
Note
Style
Injection
molding11.4±1.0
TWMC329 +1.0013±1.0Vacuum forming
TWMC50, 63
17±1.0Vacuum forming
13 +1.00Note Marking label shall be marked on a place of Marking A or two place of marking A and B.
8.4 Leader and trailer tape.
(Example)

400mm min
100mm min

160mm min
End

Start
Trailer

LeaderDirection of unreeling

Figure−8
9. Marking on package
The label of a minimum package shall be legibly marked with follows.
9.1 Marking A(1) Classification(Style, Temperature coefficient of resistance, Rated resistance, Tolerance on rated resistance, Packaging form)(2) Quantity (3) Lot number (4) Manufacturer’s name or trade mark9.2 Marking B (KAMAYA Control label)(5) Others

Product specification contained in this data sheet are subject to change at any time without notice.
If you have any questions or a Purchasing Specification for any quality agreement is necessary, please contact our sales staff.
Issue: KAMAYA ELECTRIC CO., LTD. Research & Development Department HOKKAIDO Research center Last update: 2023.1.11