1
FTR-K1 SERIES
n FEATURES
l Ultra high sensitivity
l UL, CSA recognized (see note 2)
l Conforms to FCC rules and regulations Part 68
- Surge strength 1,500 V
l High dielectric strength type available (RY-WF type)
l Contact arrangement MBB type available (RY-D type)
l High reliability-bifurcated contacts
l Wide operating range
l DIL terminals
l Plastic sealed type, cat III
l RoHS compliant.
Please see page 9 for more information
Note 1: Actual marking omits the hyphen (-) of (*)
For movable and stationary contact with gold overlay type, add sufx “–OH”.
Note 2: Standard relay does not bear the UL/CSA marking.
In case UL/CSA certication is necessary, add -UL to the ordering partnumber.
MINIATURE RELAY
2 POLES - 1 to 2A (for signal switching)
n PARTNUMBER INFORMATION
RY - 12 WF - K
[Example] (a) (*) (b) (c) (d)
RY Series
(a) Relay type RY : RY-Series
(b) Coil rated voltage 012 : 3.....48 VDC
Coil rating table at page 3
(c) Coil and contact type W : High sensitive type
WZ : Nominal 0.5W type
WF : High dielectric strength type
WFZ : 2A type
D : 2 form D (2 MMB type)
(d) Enclosure K : Plastic sealed type
2
FTR-K1 SERIES
RY SERIES
n SPECIFICATION
Item High sensitive
type 500 mW type High dielectric
strength 2 A type Continous
(MBB)type
RY-( )W-K RY-( )WZ-K RY-( )WF-K RY-( )WFZ-K RY-( )D-K
Contact
Data
Conguration 2 form C (DPDT) 2 form D (2 MBB)
Construction Bifurcated (cross bar) Single
Material Gold overlay silver-palladium Gold overlay
silver-nickel
Gold overlay silver-
palladium
Resistance (initial) Max. 100 mΩ at 6 VDC, 1A
Contact rating 1A, 24VDC
0.5A, 120VAC
1A, 24VDC
0.25A,120VAC
2A, 30VDC
0.5A,125VAC
0.15A, 48VDC
0.3A, 120VAC
Max. carrying current 1.25A 2A 0.6A
Max. switching voltage 120VAC, 60VDC 125VAC,
150VDC 120VAC, 60VDC
Max. switching power 60VA / 24W 30VA / 24W 62.5VA /60W 36VA / 7.2W
Max. switching current 1A
Min. switching load * 0.01 mA, 10 mVDC 0.1 mA,
10 mVDC
Capacitance (at 10MHz) Approximately 0.9 pF (open contacts), 1.4pF (adjacent contacts)
Approximately 1.9 pF (between coil and contacts)
Life Mechanical Min. 20 x 106
operations Min. 10 x 106 operations Min. 1 x 106
operations
Electrical (at contact rating)
Min. 200 x 103 operations (0.5A,
120VAC)
Min. 500 x 103 operations
(1A, 24VDC)
Min. 500x103
operations
(0.25A,
120VAC)
(1A, 4VDC)
Min. 100x103
operations
(2A, 30VDC)
Min.200x103 ops.
(0.3A, 120VAC)
Min.500x103 ops.
(0.15A, 48VDC)
Coil Data Rated power 150 - 300mW 500 - 580mW 450 - 460mW 500 - 580mW 450 - 480mW
Operate power 75 -140mW 125 - 145mW 200 - 210mW 200 - 324mW 200 - 210mW
Operating temperature range (no
frost)
-30 °C to
+90 °C (+80 °C
for 48VDC type)
-30 °C to +60 °C
-30 °C to +70 °C
(+65 °C for 48VDC
type)
* Minimum switching loads mentioned above are reference values. Please perform the conrmation test with actual
load before production since reference values may vary according to switching frequencies, environmental conditions
and expected reliability levels.
3
FTR-K1 SERIES
n COIL RATING
RY SERIES
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *
Must Release
Voltage
(VDC) *
Rated Power
(mW)
3 3 60 2.1 0.15
150
4.5 4.5 135 3.2 0.23
5 5 165 3.6 0.25
6 6 240 4.3 0.3
9 9 540 6.4 0.45
12 12 960 8.5 0.6
18 18 1,620 12.6 0.9 200
24 24 2,880 16.8 1.2
48 48 7,680 32.6 2.4 300
High sensitive type (RY-xxW-K)
Item High sen-
sitive type
500 mW
type
High dielectric
strength 2 A type Continous
(MBB)type
RY-( )W-K RY-( )WZ-K RY-( )WF-K RY-( )WFZ-K RY-( )D-K
Timing Data Operate (at nominal voltage) Max. 6 ms
Release (at nominal voltage) Max. 3 ms
Insulation Resistance (initial) Min. 1,000MΩ at 500VDC
Dielectric strength
Open contacts 500VAC, 1min 1,000VAC,
1min. 500VAC, 1min
Contacts to coil/
adjacent contacts 1,000VAC 1min
Surge strength Coil to contacts 1,500V / 10 x 160µs standard wave
Other Vibration resistance Misoperation 10 to 55Hz double amplitude 1.5 mm
Endurance 10 to 55Hz double amplitude 4.5 mm
Shock resistance Misoperation Min. 100m/s² (11 ± 1ms)
Endurance Min. 1,000m/s² (6 ± 1ms)
Weight Approximately 5 g
Sealing Sealed cat. RTIII
n SPECIFICATION (CONTINUED)
Note: All values in the table are valid for 20°C and zero contact current.
* Specied operate values are valid for pulse wave voltage.
4
FTR-K1 SERIES
RY SERIES
500 mW type (RY-xxWZ-K)
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *
Must Release
Voltage
(VDC) *
Rated Power
(mW)
3 3 18 1.5 0.15 500
4.5 4.5 36 2.25 0.23 560
5 5 45 2.5 0.25
6 6 66 3 0.3 550
9 9 140 4.5 0.45 580
12 12 280 6 0.6 510
18 18 560 9 0.9 580
24 24 1,070 12 1.2 540
48 48 4,000 24 2.4 580
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *
Must Release
Voltage
(VDC) *
Rated Power
(mW)
5 5 56 3.3 0.25
450
6 6 80 4 0.3
9 9 180 6 0.45
12 12 320 8 0.6
18 18 720 12 0.9
24 24 1,260 15.9 1.2
48 48 5,000 33 2.4 460
High dielectric type (RY-xxWF-K)
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *
Must Release
Voltage
(VDC) *
Rated Power
(mW)
3 3 18 1.9 0.15 500
4.5 4.5 36 2.9 0.23
560
5 5 45 3.2 0.25
6 6 66 3.8 0.3 550
9 9 140 5.7 0.45 580
12 12 280 7.6 0.6 510
18 18 560 11.4 0.9 580
24 24 1,070 15.2 1.2 540
48 48 4,000 36 2.4 580
2A type (RY-xxWFZ-K)
Note: All values in the tables are measured at 20°C and zero contact current.
* Specied values are measured with pulse wave voltage
5
FTR-K1 SERIES
RY SERIES
Type Compliance Contact rating
UL UL 478, UL 508
E 45026
Flammability: UL 94-V0 (plastics)
[RY-W, RY-WZ]
0.5A, 120VAC (resistive)
1A, 24VDC (resistive)
0.3A, 60VDC (resistive)
2A, 30VDC, (resistive)
[RY-WF]
0,5A,120VAC (resistive)(UL)
0.25A, 120VAC (resistive)(CSA)
1A, 24VDC (resistive)
0.3A, 60VDC (resistive)
2A, 30VDC (resistive)
[RY-D]
0.3A, 120VAC (resistive)
0.2A, 60VDC (resistive)
[RY-WFZ]
0.5A, 125VAC (resistive)
2A, 30VDC (resistive)
0.6A, 110VDC (resistive)
CSA C22.2 No. 14
LR 35579
n SAFETY STANDARDS *
Coil
Code
Rated Coil
Voltage
(VDC)
Coil Resistance
+/- 10% (Ohm)
Must Operate
Voltage
(VDC) *
Must Release
Voltage
(VDC) *
Rated Power
(mW)
4.5 4.5 45 3 0.23
450
5 5 55 3.3 0.25
6 6 80 3.95 0.3
9 9 180 5.9 0.45
12 12 320 7.9 0.6
18 18 720 11.8 0.9
24 24 1,280 15.8 1.2
48 48 4,800 31.8 2.4 480
MBB type (RY-xxD-K)
Note: All values in the table are measured at 20°C and zero contact current.
* Specied values are measured with pulse wave voltage
* Note: for UL/CSA certied relays; UL/CSA marking, add -UL to the ordering partnumber
6
FTR-K1 SERIES
RY SERIES
n CHARACTERISTIC DATA
7
FTR-K1 SERIES
RY SERIES
8
FTR-K1 SERIES
n DIMENSIONS
RY SERIES
Unit: mm
l Dimensions l PC board mounting
hole layout
(BOTTOM VIEW)
l Schematics
(BOTTOM VIEW)
9
FTR-K1 SERIES
RY SERIES
1. General Information
l All relays produced by Fujitsu Components are compliant with RoHS directive 2011/65/EU including
amendments.
l Cadmium as used in electrical contacts is exempted from the RoHS directives.
As per Annex III of directive 2011/65/EU.
l All relays are lead-free. Please refer to Lead-Free Status Info for older date codes at:
http://www.fujitsu.com/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 Condition
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 conrm your actual solder conditions
Flow Solder Condition:
Pre-heating: maximum 120˚C
within 90 sec.
Soldering: dip within 5 sec. at
255˚C ± 5˚C solder bath
Relay must be cooled by air immediately
after soldering
Solder by Soldering Iron:
Soldering Iron 30-60W
Temperature: maximum 350-360˚C
Duration: maximum 3 sec.
10
FTR-K1 SERIES
Fujitsu Components International Headquarter Ofces
RY 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 Pacic
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/
©2014 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 afliated 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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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. August 04, 2014
