1
FTR-K1 SERIES
n FEATURES
l 1 pole, 25A
l 1 Form A
l Contact gap 1.5mm
Surge strength (B/T open contacts) 2.5kV
Compliance with European photovoltaic standard (VDE0126)
l High insulation in small package
(between coil and contact)
- Insulation distance: Clearance > 6.4mm
Creepage > 9.5mm
- Dielectric strength: 5,000VAC
- Surge strength: 8,500V
l Coil holding voltage can be reduced up to 35% of nominal
coil voltage (ambient temperature; +20 °C, contact current; 25A)
Power consumption at the lowest coil holding voltage; 95mW
* Coil holding voltage is the coil voltage after 100ms of
applied nominal coil voltage
l Flammability UL94V-0 (plastics)
l Cadmium-free contacts
l Flux free, cat. RTII protection
l RoHS compliant
Please see page 6 for more information
Actual marking does not carry the type name : "FTR"
E.g.: Ordering code: FTR-K3AB012W-WG Actual marking: K3AB012W-WG
POWER RELAY
1 POLE - 25A - 1.5mm contact gap
FTR-K3-WG Series
n PARTNUMBER INFORMATION
FTR-K3 A B 012 W - WG
[Example] (a) (b) (c) (d) (e) (f)
(a) Relay type FTR-K3 : FTR-K3-Series
(b) Contactconguration A :1formA/PCBtype
(c) Coil power B : Standard type (780mW)
(d) Coil rated voltage 012 : 5.....48 VDC
Coil rating table at page 3
(e) Contact material W : Silver alloy
(f) Option code WG : Contact gap 1.5mm
2
FTR-K1 SERIES
n SPECIFICATION
Item FTR-K3-WG
Contact Data Conguration 1 form A
Material Silver alloy
Resistance (initial) Max.100mΩat1A,6VDC
Contact rating 25A, 250VAC (resistive)
Max. carrying current 25A
Max. switching voltage 250VAC
Max. switching power 6,250VA
Max. switching current 25A
Min. switching load *1100mA, 5VDC (reference value)
Life Mechanical Min. 2 x 106 operations
Electrical (resistive) 25A / 250VAC, min. 100 x 103 operations
Electrical (inductive)
Endurance:
25A, 250VAC, cos φ = 0.8, min. 30 x 103 operations
Overload:
37.5A, 250VAC, cos φ = 0.8, min. 50 operations
Coil Data Rated power (at 20 °C) Approximately 780mW
Operate power (at 20 °C) Approximately 380mW
Coil power at holding voltage 95mW (35% of nominal coil voltage)
Holding voltage *235~120% of nominal coil voltage (25A at +20 °C)
40~80% of nominal coil voltage (25A at +85 °C)
Operating temperature range
-40 °C to +60 °C (coil nominal voltage)
-40 °C to +85 °C (holding voltage; 40~80% of nominal coil
voltage)
Timing Data Operate (at nominal voltage) Max. 20ms (without bounce)
Release (at nominal voltage) Max. 10ms (no diode, without bounce)
Insulation Contact gap (initial) Min. 1.5 mm
Resistance Min.1,000MΩat500VDC
Dielectric strength Open contacts 2,500VAC, 1min.
Coil and contacts 5,000VAC, 1min.
Surge strength Coil to contacts 8,500V / 1.2 x 50µs standard wave
Other Vibration resistance Misoperation 10 to 55Hz double amplitude 1.5 mm
Endurance 10 to 55Hz double amplitude 1.5 mm
Shock resistance Misoperation Min. 200m/s² (11 ± 1ms)
Endurance Min. 1,000m/s² (6 ± 1ms)
Weight Approximately 25 g
*1Minimumswitchingloadsmentionedabovearereferencevalues.Pleaseperformtheconrmationtestwithactual
load before production since reference values may vary according to switching frequencies, environmental conditions
and expected reliability levels.
*2 Reduction of minimum coil holding voltage to maximum coil voltage range, after 100msec energizing with nominal coil voltage.
FTR-K3-WG SERIES
3
FTR-K1 SERIES
Type Compliance Contact rating
UL UL 508
E63614
25A, 277VAC (resistive, at 60 °C)
1HP, 125VAC (at 60 °C)
2HP, 277VAC, 100x103 (at 60 °C)
VDE IEC61810-1 25A, 250VAC (cosφ =1 at 60 °C)
CQC GB15092.1, GB8898
GB/T21711.1
04001009179
20A, 250VAC
n SAFETY STANDARDS
n COIL RATING
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *1
Must Release
Voltage
(VDC) *1
Min. Non
Release Voltage
(VDC) *1
Rated Power
+/- 10% (mW)
005 5 32 3.5 0.5 1.75
Approx.
780
(97)*2
006 6 46 4.2 0.6 2.1
009 9 105 6.3 0.9 3.15
012 12 185 8.4 1.2 4.2
018 18 415 12.6 1.8 6.3
024 24 740 16.8 2.4 8.4
048 48 2,955 33.6 4.8 16.8
Note: All values in the table are valid for 20°C and zero contact current.
*1Speciedoperatevaluesarevalidforpulsewavevoltage.
*2 This value is the coil power at 35% of nominal voltage at 20°C.
FTR-K3-WG SERIES
4
FTR-K1 SERIES
n REFERENCE DATA
FTR-K3-WG SERIES
Electrical life tests (resistive load)
5
FTR-K1 SERIES
n DIMENSIONS
FTR-K3-WG SERIES
l Dimensions
l PC board mounting
hole layout
(BOTTOM VIEW)
l Schematics
(BOTTOM VIEW)
Unit: mm
6
FTR-K1 SERIES
FTR-K3-WG SERIES
1. General Information
l All signal and power relays produced by Fujitsu Components are compliant with RoHS directive 2002/95EC including
amendments.
l Cadmium as used in electrical contacts is exempted from the RoHS directives on October 21st, 2005.
(Amendment to Directive 2002/95/EC)
l All of our signal and power relays are lead-free. Please refer to Lead-Free Status Info for older date codes
at: http://www.fujitsu.com/us/downloads/MICRO/fcai/relays/lead-free-letter.pdf
l Lead free solder plating on relay terminals is Sn-3.0Ag-0.5Cu, unless otherwise specified.
This material has been verified to be compatible with PbSn assembly process.
2. Recommended Lead Free Solder Profile
l Recommended solder Sn-3.0Ag-0.5Cu.
RoHS Compliance and Lead Free Information
3. Moisture Sensitivity
l Moisture Sensitivity Level standard is not applicable to electromechanical relays, unless otherwise indicated.
4. Tin Whiskers
l Dipped SnAgCu solder is known as presenting a low risk to tin whisker development. No considerable length
whisker was found by our in house test.
We highly recommend that you conrm your actual solder conditions
Flow Solder condition:
Pre-heating: maximum120˚C
Soldering: dip within 5 sec. at
260˚Csolderbath
Solder by Soldering Iron:
Soldering Iron
Temperature: maximum360˚C
Duration: maximum 3 sec.
7
FTR-K1 SERIES
Fujitsu Components International Headquarter Ofces
FTR-K3-WG SERIES
Japan
Fujitsu Component Limited
Gotanda-Chuo Building
3-5, Higashigotanda 2-chome, Shinagawa-ku
Tokyo 141, Japan
Tel: (81-3) 5449-7010
Fax: (81-3) 5449-2626
Email: promothq@ft.ed.fujitsu.com
Web: www.fcl.fujitsu.com
North and South America
Fujitsu Components America, Inc.
250 E. Caribbean Drive
Sunnyvale, CA 94089 U.S.A.
Tel: (1-408) 745-4900
Fax: (1-408) 745-4970
Email: components@us.fujitsu.com
Web: http://us.fujitsu.com/components
Europe
Fujitsu Components Europe B.V.
Diamantlaan 25
2132 WV Hoofddorp
Netherlands
Tel: (31-23) 5560910
Fax: (31-23) 5560950
Email: info@fceu.fujitsu.com
Web: emea.fujitsu.com/components/
Asia Pacic
Fujitsu Components Asia Ltd.
102E Pasir Panjang Road
#01-01 Citilink Warehouse Complex
Singapore 118529
Tel: (65) 6375-8560
Fax: (65) 6273-3021
Email: fcal@fcal.fujitsu.com
Web: http://www.fujitsu.com/sg/services/micro/components/
©2011 Fujitsu Components Europe B.V. All rights reserved. All trademarks or registered trademarks are the property of their respective owners.
The contents, data and information in this datasheet are provided by Fujitsu Component Ltd. as a service only to its user and only for general
information purposes.
The use of the contents, data and information provided in this datasheet is at the users’ own risk.
Fujitsu has assembled this datasheet with care and will endeavor to keep the contents, data and information correct, accurate, comprehensive,
complete and up to date.
FujitsuComponentsEuropeB.V.andafliatedcompaniesdohowevernotacceptanyresponsibilityorliabilityontheirbehalf,noronbehalfofits
employees, for any loss or damage, direct, indirect or consequential, with respect to this datasheet, its contents, data, and information and related
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NordoFujitsuComponentsEuropeB.V.andafliatedcompaniesacceptontheirbehalf,noronbehalfofitsemployees,anyresponsibilityorliability
foranyrepresentationorwarrantofanykind,expressorimplied,includingwarrantiesofanykindformerchantabilityortnessforparticularuse,
with respect to these datasheets, its contents, data, information and related graphics and the correctness, reliability, accuracy, comprehensiveness,
usefulness, availability and completeness thereof. Rev. July 13, 2011