Form No.: QF-1274
Edition: 2
RoHS & Halogen Free & REACH Compliance.
SPECIFICATION FOR APPROVAL
Customer：
Customer P/N:
Drawing No：
Quantity：
Chilisin P/N：
0
Pcs.
Date :
BCTW Series
SPECIFICATION
ACCEPTED BY:
COMPONENT
ENGINEER
ELECTRICAL
ENGINEER
MECHANICAL
ENGINEER
APPROVED
REJECTED
奇力新電子股½有限公司
Chilisin Electronics Corp
No. 29, Alley 301, Tehhsin Rd.,
Hukou,Hsinchu 303, Taiwan
TEL：+886-3- 599-2646
FAX：+886-3- 599-9176
E-mail：sales@chilisin.com
http：//www.chilisin.com
東莞奇力新電子(東莞廠)有限公司
Chilisin Electronics (Dongguan) Co., Ltd.
No. 78, Puxing Rd., Yuliangwei Administration
Area, Qingxi Town, Dongguan City,
Guangdong,China
TEL：+86-769-8773-0251~3
FAX： +86-769-8773-0232
E-mail：cect@chilisin.com
奇力新電子(越南廠)有限公司
Chilisin Electronics (Vietnam) Limited
No 143 - 145, Road No 10, VSIP Hai Phong,
Lap Le Commune, Thuy Nguyen Dist,
Haiphong City, Vietnam
Tel：84-316 255 688 Fax：84-316 255
689
E-mail：sales@chilisin.com
奇力新電子(湖南廠)有限公司
HuNan Chilisin Electronics Technology Co., Ltd
No. 8, Shaziao Liangshuijing Town, Yuanling
County, Huaihua City, Hunan Province 419601,
China
Tel：86-745-867-5882
E-mail：cect@chilisin.com
Drawn by
Checked by
Approved by
Desmond.Wu
Cf.Hsieh
Wl.Liu
BCTW Series Specification
1 Scope:
1-1 This specification is applicable to lead free and halogen free of RoHS directive for
BCTW series wide terminal thick film chip resistors.
1-2
The product is for general electronic purpose.
2 Part Numbering:
B
C
Series
T
W
0
0
0 6 1 2
Dimension
(inch)
0508
0612
1218
1020
1225
-
1 0 0 2
Resistance Value
3 digit:
Ex. 10Ω = 100
4.7Ω = 4R7
Jumper = 000
4 digit:
Ex. 10.2 Ω = 10R2
10KΩ = 1002
J
Tolerance
D=± 0.5%
F=± 1%
J=± 5%
TP
Taping Code
TP 5,000pcs/reel: 0508, 0612
TE 4,000pcs/reel: 1218, 1020, 1225
Internal
Code
BCTW:
Wide Terminal Thick Film Chip
Resistors
3 SPECIFICATIONS:
≧1Ω&0Ω
3.1
Resistance Range:＜1Ω
JUMPER
(0Ω)
Rated
Power
JUMPER
(0Ω)
Resistance
Value
Type
Rated
Power
at
70℃
Max.
Working
Voltage
Max.
Overload
Voltage
Resistance Range
T.C.R
(ppm/℃)
D(±0.5%)、F(±
1%)
E-24、E-96
±200
±100
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
J(±5%)
E-24
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
1Ω≦R＜10Ω
10Ω≦R≦1MΩ
J
F
J
F
(±
(±1%) (±5%) (±1%)
5%)
2A
4A
50mΩ 20mΩ
MAX. MAX
50mΩ 20mΩ
MAX. MAX
50mΩ 20mΩ
MAX. MAX
50mΩ 20mΩ
MAX. MAX
50mΩ 20mΩ
MAX. MAX
0508
1/3W
150V
200V
0612
3/4W
200V
400V
±200
±100
2A
4A
1218
1W
250V
500V
±200
±100
2A
7A
1020
1W
200V
400V
±200
±100
2A
7A
1225
2W
200
400V
±200
±100
2A
8.5A
Operating Temperature Range
-55℃ ~ +155℃
BCTW Series Specification
3.2 Power Derating Curve:
Operating Temperature Range：- 55½155
℃
For resistors operated in ambient temperatures above 70℃, power rating shall be derated in
accordance with figure below。
3.3 Voltage Rating :
3.3.1 Resistance Range:≧1Ω
Rated Voltage: DC voltage or AC voltage (rms) based on the rated power.
The voltage can be calculated by the following formula. If the calculated value
exceeds the Max.voltage specified in the Table 3, the Max. voltage rating is set as the
voltage rating.
E
=
R×P
E= Rated voltage (v)
P= Power rating (w)
R= Nominal resistance(Ω)
BCTW Series Specification
4 Dimensions:
Dimension
Type
BCTW
BCTW
BCTW
BCTW
BCTW
SizeCode
0508
0612
1218
1020
1225
L
1.20±0.10
1.60±0.20
3.10±0.10
2.50±0.20
3.20±0.20
W
2.00±0.10
3.20±0.20
4.60±0.20
5.00±0.20
6.40±0.20
H
0.50±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
L1
0.20±0.10
0.35±0.15
0.45±0.25
0.25±0.20
0.45±0.20
L2
0.20±0.15
0.25±0.15
0.40±0.20
0.90±0.20
0.75±0.20
5 Structure Graph:
5.1 Resistance Range:
≧1Ω&0Ω
1
2
3
4
5
Ceramic substrate
1st Top inner electrode
Resistive layer
Bottom inner electrode
1st Protective coating
6
7
8
9
10
2nd Protective coating
G2 layer + Marking
Terminal inner electrode
Ni plating
Sn plating
BCTW Series Specification
6
Reliability Test:
1.1 Electrical Performance Test
No
1-1-1
Temperature
Item
Coefficient of
Resistance
CR（ppm /
℃）＝
Conditions
（R2－R1）
R1（T2－T1）
Specifications
Resistors
Refer to item 3. general specifications
Jumper
NA
×10
6
1-1-2
Short Time
Overload
R1: Resistance at room temperature
R2: Resistance at -55℃ or +125℃
T1: Room temperature
T2: Temperature -55℃ or +125℃
Refer to JIS-C5201-1 4.8
0508/0612/1218/1020 applied 2.5 times rated voltage for 5
seconds , 1225 applied 2.5 times rated voltage for 2
seconds, Release the load for about 30 minutes,
0.5%、1%:△R=±1.0%
then measure its resistance variance rate.
5%:△R=±2.0%
(Rated voltage refer to item 3. general specifications)
Refer to
item 3.
general
specifications
Refer to JIS-C5201-1 4.13
No evidence of mechanical damage.
1-1-3
Dielectric
Withstand
Voltage
Put the resistor in the fixture, add VAC (see SPEC below)
in +,- terminal for.
BCTW(05)0508 apply 300VAC 1 minute.
BCTW(06)0612 apply 400 VAC 1 minute.
BCTW(18)1218 apply 500 VAC 1 minute.
BCTW(20)1020 apply 500 VAC 1 minute.
BCTW(25)1225 apply 500 VAC 1 minute.
No short or burned on the appearance.
Refer to JIS-C5201-1 4.7
1-1-4
Intermittent
Overload
Put the tested resistor in chamber under temperature
25±2℃ and load 2.5 times rated DC voltage for 1 sec on,
25 sec off, 10000+400/-0 test cycles,
then it be left at no-load for 1 hour ,
then measure its resistance variance rate.
Jumper : Applied Maximum overload current
△R=±5.0%
Refer to item
3.general
specifications
Refer to JIS-C5201-1 4.13
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