1/4W, 0603, Low Resistance Chip Resistor (Lead / Halogen Free)
1. Scope
This specification applies to1.6mm x 0.8mm size 1/4W, fixed thick film low resistance value chipresistors rectangular type.
2. Type Designation
RLT0816 - 3 - □□□□
(1)
(2)
(3)
Where

□
(4)

(1) Size No.
(2) Power Rating:3 = 1/4W(3) Resistance value: Refer to paragraph 4-1
For example -Four digits of number
R100 = 0.1Ω
1R00 = 1.0Ω
The “R” shall be used as a decimal point(4) Resistance tolerance:
F = ±1%, G = ±2%, J = ±5%

3. Outline Dimensions
LaaWtbUNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X= ±X.X= ±X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :Code LetterDimension

L

1.60 ± 0.15

W

0.80 ± 0.15

t0.45 ± 0.10

a0.30 ± 0.20

b0.30 ± 0.20
Unit : mm

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 1

PAGEREV.

A0OF 94. Ratings
4-1 Specification
Table 1
Power Rating*

1/4W

Resistance Tolerance

1%(F), 2%(G), 5%(J)Resistance Range
Temperature Coefficient ofResistance(ppm/℃)
Note*:

0.05Ω ~ <0.1Ω

0.1Ω ~ <10Ω

±300±200

Power Rating is based on continuous full load operation at rated ambient temperature of 70℃.
For resistor operated at ambient temperature in excess of 70℃,the maximum load
shall be derated in accordance with the following curve.

RATED LOAD(%)

1000-5570125

AMBIENT TEMPERATURE(℃)

4-2 Rated Voltage
The d.c. or a.c. r.m.s. voltage shall be calculated from the following expression
V =P× R

Where V

: Rated voltage (V)P : Rated power (W)R : Nominal resistance (Ω)
4-3 Operating and Storage Temperature Range-55 to +125℃

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕
X
= ±
X.X
= ±
X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 2

PAGEREV.

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OF 9

5. Characteristics
5-1 Electrical
Item

Specification and Requirement

Test Method (JIS 5201)

Temperature Coefficient As follow table 1.
Room temperatureof Resistance (TCR)
Room temperature+100℃
Short Time Overload(1) Applied voltage: 2.5 x rated△ R:±1.0%
voltage
Without damage by flashover, spark,(2) Test time: 5 seconds
arcing, burning or breakdown
Insulation Resistance

Voltage Proof(1) Setup as figure 1
Over 100 MΩ on Overcoat layer(2) Test voltage: 100VDC±15VDC
face up(3) Test time: 60 + 10 / - 0 seconds
Over 1,000 MΩ on Substrate side
face upResistance range:±1.0%(1) Setup as figure 1
Without damage by flashover, spark, (2) Test voltage: 100VAC(rms.)(3) Test time: 60 + 10 / - 0 seconds
arcing, burning or breakdown

Pressure Rod(Metal)

Insulation Plate

Measurement Point A(R=0.5 mm)
SubstrateSpring
Sample Electrode
Voltage SupplyA

Metal Block

Over coat FilmB

Measurement Point B

Substrate Side
Figure 1 : Measurment Setup

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X= ±X.X= ±X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 3PAGEREV.

A0OF 95-2 Mechanical
Item

Specification and Requirement

Test Method (JIS 5201)

Solderability

The surface of terminal immersed
shall be minimum of 95% covered
with a new coating of solder

Solder bath:
After immersing in flux, dip in245 ± 5℃ molten solder bath for 2 ±0.5 seconds

Resistance to SolderHeat△ R: ± 1.0%
Without distinct deformation inappearance

Bending Test

Solvent Resistance(1) Pre-heat: 100~110℃
for 30 seconds(2) Immersed at solder bath of
270 ± 5℃ for 10 ± 1seconds(3) Measuring resistance 1
hour after test
Bending value: 3 mm for 30 ± 1△ R: ± 1.0%
Without mechanical damage such as seconds
breakWithout mechanical and distinct(1) Solvent: Trichloroethane
damage in appearance
or Isopropyl alcohol(2) Immersed in solvent at room
temperature for 300 seconds

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕
X
= ±
X.X
= ±
X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 4

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5-3 Endurance
Item

Test Method (JIS 5201)

Specification and Requirement

Rapid Change ofTemperature△ R:±1.0%
Without distinct damage inappearance

Moisture with Load

△ R: ±5.0%
Without distinct damage inappearance

Load Life△ R: ±5.0%Without distinct
damage in appearance

Low Temperature Store △ R: ± 5.0%
Without distinct
damage in appearance

High Temperature Store △ R: ± 5.0%
Without distinct
damage in appearance

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X
= ±
X.X
= ±
X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :(1) Repeat 5 cycle as follow:(-55 ± 3℃,30minutes)→(Room temperature, 2~3minutes)→(+125 ± 2℃,30minutes)→(Room temperature 2~3minutes)(2) Measuring resistance
1 hour after test
(1) Environment condition:
40 ± 2℃,90~95% RH(2) Applied Voltage: rated voltage(3) Test period: (1.5 hour ON)→(0.5 hour OFF) cycled for
total
1,000 + 48 / - 0 hours(4) Measuring resistance
1 hour after test
(1) Test temperature: 70 ± 3℃
(2) Applied Voltage: rated voltage(3) Test period: (1.5 hour ON)→(0.5 hour OFF) cycled for
total
1,000 + 48 / - 0 hours(4) Measuring resistance
1 hour after test
(1) Store temperature:-55 ± 3℃ for total
1,000 + 48 / - 0 hours(2) Measuring resistance
1 hour after test(1) Store temperature:+125 ± 2℃ for total
1,000 + 48 / - 0 hours(2) Measuring resistance
1 hour after test

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 5PAGEREV.

A0OF 96.

Recommend Land Pattern Dimensions

ACA

0.8~1.0B2.4~2.6C

1.0~1.2Unit : mmBUNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X= ±X.X= ±X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 6PAGEREV.

A0OF 97. Packaging7-1 Dimensions
7-1-1

Tape packaging dimensions¯1.5±0.1

0.60±0.1

4.0±0.1

Sprocket hole2.0±0.05

CA

8.0±0.3

B

Chip0.65 ± 0.1

D

A=1.1±0.2
B=1.9±0.2
C=1.75±0.1
D=3.5±0.05

4.0±0.1

Carrier cavity

Pulling direction

Unit : mm

Remark: Leader tape length≧30 cm( 150 Hollow carrier cavity)
7-1-2

Reel dimensions

2.0±0.5¯56.0±1.020min.

¯60.0±1.0¯178±2.0¯13.0±1.0

9.0±1.0

Unit : mm

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X= ±X.X= ±X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :11.5 ±1.0

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 7

PAGEREV.

A0OF 97-2 Peel force of top cover tape
The peel speed shall be about 300 mm/min.
The peel force of top cover tape shall be between 0.1 to 0.7 N.
Top Cover Tape

165 ~ 180°0.1~0.7 N

7-3 Numbers of taping

5,000 pieces /reel

7-4 Label making
The following items shall be marked on the reel.
(1) Type designation.
(2) Quantity(3) Manufacturing date code(4) Manufacturer’s name

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕
X
= ±
X.X
= ±
X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 8PAGEREV.

A0
OF 9

8. Carenote
8-1 Care note for storage(1) Chip resistor shall be stored in a room where temperature and humidity must be controlled.
(temperature 5 to 35℃, humidity 45 to 85% RH) However, a humidity keep it low, as it ispossible.
(2) Chip resistor shall be stored as direct sunshine doesn’t hit on it.
(3) Chip resistor shall be stored with no moisture, dust, a material that will make solderability
inferior, and a harmful gas (Chloridation hydrogen, sulfurous acid gas, and sulfurationhydrogen)
8-2 Carenote for operating and handling(1) It is necessary to protect the edge and protection coat of resistors from mechanical stress.
(2) Handle with care when printing circuit board (PCB) is divided or fixed on support body,
because bending of printing circuit board (PCB) mounting will make mechanical stress forresistors.
(3) Resistors shall be used with in rated range shown in specification. Especially, if voltage
more than specified value will be loaded to resistor, there is a case it will make damage formachine because of temperature rise depending on generating of heat, and increase
resistance value or breaks.
(4) In case that resistor is loaded a rated voltage, it is necessary to confirms temperature of aresistor and to reduce a load power according to load reduction curve, because atemperature rise of a resistor depends on influence of heat from mounting density andneighboring element.
(5) Observe Limiting element voltage and maximum overload voltage specified in eachspecification(6) If there is possibility that a large voltage (pulse voltage, shock voltage) charge to resistor, itis necessary that operating condition shall be set up before use.

UNLESS OTHERWISE SPECIFIED TOLERANCES ON ﹕X= ±X.X= ±X.XX = ±ANGLES ±HOLE DIA. ±SCALE :UNIT :

台達電子工業股份有限公司
Delta Electronics, Inc.

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

TITLE : The Engineering Specification for RLT0816
1/4W Low Resistance Chip Resistor

DOCUMENTNO.

SRK330000NH
PAGE 9PAGEREV.

A0OF 9