FTR-K1 SERIES

Discontinued in October 2021

MINIATURE RELAY
2 POLES - 1 to 2 A (For Signal Switching)

NA Series
FEATURESSlim type relay for high density mounting
Conforms to Telcordia specification and FCC Part 68- Dielectric strength 1,500 VAC between coil and contacts- Surge strength 2,500 V between coil and contacts(at 2 × 10 s surge wave)
 UL, CSA recognized High sensitivity and low consumption power High reliability - bifurcated contacts
 DIL pitch terminals
 Plastic sealed type
 RoHS compliant.
Please see page 8 for more information


PARTNUMBER INFORMATION[Example]NA(a)L
D 12 W - K(b) (*) (c) (d) (e)
(f)

(a)

Relay type

NA: NA-Series(b)Coil type

Nil
L: Standard type
: Latching type (1 coil)(c)Number of coil

Nil
D: Single winding type
: Double winding type(d)

Coil rated voltage

12: 1.5.....48 VDC
Coil rating table at page 3(e)ContactW: Bifurcated type(f)

EnclosureK: Plastic sealed type

Note: Actual marking omits the hyphen ( - ) of (*).

1

FTR-K1NASERIESSERIES

Discontinued in October 2021

SPECIFICATION

ItemContact Data

LifeCoil Data

Standard type

Single winding
latching typeDouble winding
latching typeNA - ( ) W - K

NAL - ( ) W - K

NAL-D ( ) W - K

2 form C (DPDT)
Construction

BifurcatedMaterial

Gold overlay silver alloy (AgPd)

Resistance (Initial)

Max. 50 mΩ at 1 A, 6 VDC

Contact rating (resistive)

0.5A, 125VAC or 1A, 30VDC

Max. carrying current

2A

Max. switching voltage

250VAC / 220VDC

Max. switching power

62.5VA / 30W

Max. switching current

2AMin. switching load *0.01 mA, 10 mVDC

Capacitance (at 1kHz, reference)

Approx. 0.5 pF (open contacts, adjacent contacts)
Approx. 1.0 pF (between coil and contacts)

MechanicalMin. 100 x 106
operations

Electrical

Min. 200 x 103 operations (0.5A, 125VAC),
Min. 500 x 103 operations (1A, 30VDC)

Rated power

140 - 300 mW

Min. 10 x 106 operations

100 - 150 mW

Applied pulse width

Timing Data
Insulation

min. 10ms

Operate power

80 - 70 mW

Operating temperature range-40 °C to +85 °C (no frost)

60 - 85 mW

Operate (at nominal voltage, without bounce) Max. 6 ms

Max. 6 ms (set)Release (at nominal voltage, without bounce)Max. 4 ms

Max. 6 ms (reset)

Resistance (Initial)

Min. 1,000MΩ at 500VDC

Dielectric strength

Surge strength
Other

200 - 300 mW

Vibration resistance
Shock
Weight115 - 170 mW

Open contacts /adjacent contacts

1,000VAC (50/60Hz) 1min

Contacts to coil

1,500VAC (50/60Hz) 1min.

Open contacts /adjacent contacts

1,500V / 10 x 700µs standard wave

Coil to contacts

2,500V / 2 x 10µs standard wave

Misoperation

10 to 55 to 10Hz single amplitude 1.65mm

Endurance

10 to 55 to 10Hz single amplitude 2.5mm

Misoperation

500m/s² (11 ± 1ms)

Endurance

1,000m/s² (6 ± 1ms)

1,000VAC (50/60Hz)
1min

1,500V / 10 x 160µs
standard wave

Approximately 1.6 g* Minimum switching loads mentioned above are reference values. Please perform the confirmation test with actualload before production since reference values may vary according to switching frequencies, environmental conditions
and expected reliability levels.
2FTR-K1NA
SERIESSERIES

Discontinued in October 2021

COIL RATINGStandard type
CoilCode

Rated CoilVoltage(VDC)

Coil Resistance+/- 10% (Ohm)Must Operate
Voltage(VDC) *

Must Release
Voltage(VDC) *

1.5

1.5

16.1+1.13+0.15

33

64.3+2.25+0.3

4.5

4.5

145

+3.38+0.45

55

178+3.75

+0.5

66257

+4.5+0.6

99579

+6.75

+0.9

1212

1,028

+9+1.2

18

18

1,620

+13.5

+1.8

24

24

2,880

+18+2.4

48

48

7,680

+36+4.8300

Rated Power(mW)

Rated Power(mW)

140200Single winding latching type
CoilCode

Rated CoilVoltage(VDC)

Coil Resistance+/- 10% (Ohm)Set Voltage(VDC) *ResetVoltage(VDC) *

1.5

1.5

22.5+1.13-1.13

3390+2.25-2.25

4.5

4.5

203+3.38

-3.38

55

250+3.75-3.7566360+4.5

-4.5

99810

+6.75

-6.75

1212

1,440+9-918

18

2,160+13.5

-13.5

2424

3,840

+18-18100150

Note: All values in the tables are valid for 20°C and zero contact current.
* Specified operate values are valid for pulse wave voltage.
Please use at rated coil voltage. Please refer to characteristic data and set up adequate voltage in case of use at over voltage.

3FTR-K1NASERIESSERIES

Discontinued in October 2021

COIL RATINGnDouble winding latching type
CoilCode

Rated CoilVoltage(VDC)

Coil Resistance+/- 10% (Ohm)Set Voltage(VDC) *1.5

1.5

P 11.25+1.13

S 11.25
33P 45

4.5

P 101

+2.25
+2.25+3.38

S 101
55

P 125

+3.38+3.75

S 125
66

P 180

9P 405+4.5+4.5+6.75

S 405
1212P 720

+6.75+9S 720
1818P 1,080+9+13.5

S 1,0802424P 1,920

200+3.75

S 180
9Rated Power(mW)

+1.13

S 45
4.5ResetVoltage(VDC) *+13.5300+18S 1,920+18

Note: All values in the table are measured at 20°C and zero contact current.
P: Primary coil S: Secondary coil
* Specified values are measured with pulse wave voltage
Please use at rated coil voltage. Please refer to characteristic data and set up adequate voltage in case of use at over voltage.

nSAFETY STANDARDS

TypeComplianceContact ratingULUL 508, UL 1950Flammability: UL 94-V0 (plastics)

E 45026

0.5A, 125VAC (general use)
2A, 30VDC (resistive)
0.3A, 110VDC (resistive)

CSA

C22.2 No. 14, No. 950
LR 35579

Complies to IEC60950-1; FCC part 68: Telcordia(Relay is only marked with UL and CSA logo)4

Discontinued in October 2021

FTR-K1NA
SERIESSERIESn CHARACTERISTIC DATA

5

Discontinued in October 2021

FTR-K1SERIESNA SERIES

6

FTR-K1NA
SERIESSERIES

Discontinued in October 2021

DIMENSIONS

NA (standard type)
NAL (single winding latching type)Dimensions

Schematics(BOTTOM VIEW)

15.2 max.
14.9 typ.

7.7 max.
7.4 typ.

134

51210
Orientation mark98

 PC board mounting
hole layout(BOTTOM VIEW)
8- φ0.8

14.9

5.08

7.4

10 max.
9.7 typ.

+(-)

5.08

2.54 2.54

3.0(1.1)(1.16)

-(+)

0.5
5.08

(1.1)

0.2
2.54 2.54(1.16)

5.08

NAL-D (double winding latching type) Schematics(BOTTOM VIEW)

Dimensions

45PS

-(+)

(-)
98

3.0

1210
Orientation mark0.2(1.16)

5.08

10 max.
9.7 typ.

(+)

5.08

* Dimensions of the terminals do not include thickness of pre-solder.
* Dimensions do not include tolerances.
* Toleranes of PC board mounting hole layout: ±0.1 unless otherwise specified.

(1.1)

5.08

2.54 2.54 2.54

(1.16)

3+(-)

2.54 2.54 2.54

10- φ0.8

14.9
1

0.5
5.08

PC board mounting
hole layout(BOTTOM VIEW)

7.7 max.
7.4 typ.

15.2 max.
14.9 typ.

(1.1)

7.4



* Contacts drawn in reset condition.
* +/-: set voltage applied polarity, (+)/(-):
reset voltage applied polarity.
* P: Set coil, S: Reset coil

Unit: mm7

Discontinued in October 2021

FTR-K1NASERIESSERIESRoHS Compliance and Lead Free Information
1. General Informationllll

All relays produced by Fujitsu Components are compliant with RoHS directive 2011/65/EU includingamendments.
Cadmium as used in electrical contacts is exempted from the RoHS directives.
As per Annex III of directive 2011/65/EU.
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
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 Conditionl

Recommended solder Sn-3.0Ag-0.5Cu.

Flow Solder Condition:
Pre-heating:maximum 120˚C
within 90 sec.
Soldering:
dip within 5 sec. at255˚C ± 5˚C solder bath
Relay must be cooled by air immediately
after soldering

Solder by Soldering Iron:
Soldering Iron
Temperature:
Duration:

30-60Wmaximum 350-360˚Cmaximum 3 sec.

We highly recommend that you confirm your actual solder conditions

3. Moisture SensitivitylMoisture Sensitivity Level standard is not applicable to electromechanical relays, unless otherwise indicated.

4. Tin WhiskerslDipped SnAgCu solder is known as presenting a low risk to tin whisker development. No considerable lengthwhisker was found by our in house test.

8FTR-K1NA
SERIESSERIES

Discontinued in October 2021

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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.
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to these datasheets, its contents, data, information and related graphics and the correctness, reliability, accuracy, comprehensiveness, usefulness, availability andcompleteness thereof. Rev. July 9, 20199