ROHM KTR25

High Voltage Resistance Chip Resistors
KTR Series
Features
1) Twice the rated voltage of conventional products..
2) Perfect for use in high voltage circuit. (Camera Flash circuit, etc)
3) ROHM resistors have obtained ISO9001 / ISO / TS16949 certification.
4) Corresponds to AEC-Q200. (KTR18)
Products List
Size
Part No.
KTR03
KTR10
KTR18
KTR25
(mm) (inch)
1608
2012
3216
3225
0603
0805
1206
1210
Rated Power Limiting Element
(70°C)
Voltage
(W)
(V)
Maximum
Overload
Voltage
(V)
0.1
350
500
0.125
0.25
0.33
400
500
600
Temperature Resistance
Coefficient Tolerance Resistance Range
(ppm / °C)
(%)
±200
J(±5%)
±100
F(±1%)
±200
J(±5%)
±100
F(±1%)
±200
J(±5%)
±100
F(±1%)
±200
J(±5%)
±100
F(±1%)
Series
Operating
Temperature
Range
(°C)
E24
−55 to +155
1Ω to 10MΩ
1Ω to 10MΩ
800
1Ω to 10MΩ
1000
1Ω to 10MΩ
1200
∗Design and specifications are subject to change without notice.
Carefully check the specification sheet supplied with the product before using or ordering it.
Part Number Description
K T R
1 0
E Z P
J
Part No.
Size (mm [inch])
Packaging Specifications Code
KTR
03 (1608 [0603])
10 (2012 [0805])
18 (3216 [1206])
25 (3225 [1210])
Part No.
Code
Packaging
specifications
Quantity
/ Reel
KTR03
EZP
Paper tape
(4mm Pitch)
5,000
KTR10
EZP
Paper tape
(4mm Pitch)
5,000
KTR18
EZP
Paper tape
(4mm Pitch)
5,000
KTR25
JZP
Embossed tape
(4mm Pitch)
4,000
(High Voltage Resistance
Chip Resistors)
Resistance
Tolerance
D ( ±0.5% )
F ( ±1% )
J ( ±5% )
1 0 0
Nominal Resistance
Resistance code, 3 or 4 digits.
000 denotes jumper type.
Resistance
tolerance
F
J
Resistance
code
:
:
Ex.)
1Ω = 1R00
1R0
10 Ω = 10R0
100
1M Ω = 1004
105
www.rohm.com
c 2012 ROHM Co., Ltd. All rights reserved.
○
1/4
4 digits
3 digits
( ±1% )
( ±5% )
( ±1% )
( ±5% )
( ±1% )
( ±5% )
2012.11 - Rev.C
KTR Series
Data Sheet
Chip Resistor Dimensions and Markings


KTR03
KTR10 / 18 / 25
<Marking method>
There are three or four digits used for the calculation number
according to IEC code and “R”is used for the decimal point.
L
L
103
W
a
W
a
t
b
t
b
(Unit : mm)
Part No.
(mm)
(inch)
L
W
t
a
b
Marking
existence
KTR03
1608
0603
1.6±0.1
0.8±0.1
0.45±0.1
0.3±0.2
0.3±0.2
No ∗
KTR10
2012
0805
2.0±0.1
1.25±0.1
0.55±0.1
0.3±0.2
0.4±0.2
Yes
KTR18
3216
1206
3.2±0.15
1.6±0.15
0.55±0.1
0.3±0.25
0.5±0.25
Yes
KTR25
3225
1210
3.2±0.15
2.5±0.15
0.55±0.15
0.3±0.25
0.5±0.25
Yes
∗Only with square mark
Land pattern Example
B
D
Land
C
A
(Unit : mm)
Dimensions
A
B
C
D
KTR03
1.0
2.0
0.8
0.5
KTR10
1.2
2.6
1.15
0.7
KTR18
2.2
4.0
1.5
0.9
KTR25
2.2
4.0
2.3
0.9
Part No.
www.rohm.com
c 2012 ROHM Co., Ltd. All rights reserved.
○
2/4
2012.11 - Rev.C
KTR Series
Data Sheet
Derating Curve
When the ambient temperature exceeds 70°C, power dissipation must be adjusted according to the derating curves below.
KTR03 / 10 / 18 / 25
PERCENT RATED POWER (%)
100
80
60
40
20
0
−55
0
70
100
AMBIENT TEMPERATURE (°C)
155
Characteristics
Guaranteed Value
Resistor Type
Test Items
Test Conditions
Resistance
See P.1
20°C
Variation of resistance
with temperature
See P.1
Measurement : +20 / −55 / +20 / +125°C
Rated voltage (current) ×2.5, 2s
Maximum overload voltage
± (2.0%+0.1Ω)
Overload
Rosin·Ethanol : 25% (Weight)
Soldering condition : 235±5°C
Duration of immersion : 2.0±0.5s
A new uniform coating of minimum of
95% of the surface being immersed
and no soldering damage.
Solderability
± (1.0%+0.05Ω)
No remarkable abnormality on the appearance.
Resistance to
soldering heat
Soldering condition : 260±5°C
Duration of immersion : 10±1s
Rapid change of
temperature
± (1.0%+0.05Ω)
Test temp. : −55°C to +125°C 5cycle
Damp heat, steady state
± (3.0%+0.1Ω)
40°C, 93%RH (Relative Humidity)
Test time : 1,000h to 1,048h
Endurance at 70°C
± (3.0%+0.1Ω)
70°C
Rated voltage (current)
1.5h : ON − 0.5h : OFF
Test time : 1,000h to 1,048h
Endurance
± (3.0%+0.1Ω)
155°C
Test time : 1,000h to 1,048h
Resistance to solvent
± (1.0%+0.05Ω)
23±5°C, Immersion cleaning, 5±0.5min
Solvent : 2−propanol
± (1.0%+0.05Ω)
Without mechanical damage such as breaks.
Bend strength of
the end face plating
−
Compliance Standard(s) : IEC60115−8
JISC 5201−8
Chip weight (typical value)
Parameter
Unit
KTR03
KTR10
KTR18
KTR25
Weight
mg/pc
2.18
5.13
9.62
16.47
www.rohm.com
c 2012 ROHM Co., Ltd. All rights reserved.
○
3/4
2012.11 - Rev.C
KTR Series
Data Sheet
Tape Dimensions

(Unit : mm)
Paper Tape
Part No.
W
F
E
A0
B0
KTR03
8.0±0.3
3.5±0.05
1.75±0.1
1.1±0.1
1.9±0.1
KTR10
8.0±0.3
3.5±0.05
1.75±0.1
1.65
KTR18
8.0±0.3
3.5±0.05
1.75±0.1
1.95
Part No.
D0
P0
P1
P2
T2
KTR03
+0.1
φ1.5
0
4.0±0.1
4.0±0.1
2.0±0.05
Max 1.1
KTR10
φ1.5
+0.1
0
4.0±0.1
4.0±0.1
2.0±0.05
Max 1.1
KTR18
φ1.5
+0.1
0
4.0±0.1
4.0±0.1
2.0±0.05
Max 1.1
W
F
E
A0
B0
8.0±0.3
3.5±0.05
1.75±0.1
3.0±0.1
3.5±0.1
D0
P0
P1
P2
K
4.0±0.1
4.0±0.1
2.0±0.05
Max 1.1
P0
P2
P1
φD0
E
F
W
B0
+0.2
−0.1
+0.1
−0.05
2.4
3.5
+0.2
−0.1
+0.15
−0.05
A0
Top tape
Base paper
(Bottom tape)
Components
Cavity
T2

(Unit : mm)
Embossed Tape
Part No.
P2
φD
E
0
P0
W
F
KTR25
B0
φ1.5
A0
+0.1
0
P1
K
02
04
06
08
06
D
04
B
02
A
08
Reel Dimensions
C
Label
ACCORDING TO EIAJ ET-7200B
(Unit : mm)
Part No.
A
B
C
D
+1.0
0
φ13±0.2
KTR03
KTR10
KTR18
φ180
0
−1.5
φ60
+1.0
0
9
KTR25
www.rohm.com
c 2012 ROHM Co., Ltd. All rights reserved.
○
4/4
2012.11 - Rev.C
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
R1120A