UA2-12NU_技术文档

Miniature Signal Relays

UA2/UB2 Series

Overview

Applications

The KEMET UA2/UB2 miniature signal relays offer a super

compact case size in a slim package. Minimal board space

is consumed with either a through-hole or surface mount

conﬁguration.ꢀTheseꢀrelaysꢀareꢀrecognizedꢀbyꢀULꢀandꢀCSA,ꢀ

while also being compliant with Part 68 of the FCC’s 1,500

V surge capacity.

• Electronic switching systems

• PBX

• Terminal equipment

• Telephone systems

Beneﬁts

• Low power consumption (< 140 mW)

• Super compact and lightweight

• Slim package for dense mounting

• Low magnetic interference

• Tube or embossed tape and reel packaging

•ꢀ ULꢀrecognizedꢀ(E73266)ꢀandꢀCSAꢀcertiﬁedꢀ(LR46266)

• Surface mount and through-hole options

Part Number System

UB2-

3

S

NU

Lead Type

-L

Series

Coil Voltage

Latch Type

Packaging

UA2- = Through-hole mount 3 = 3 VDC

UB2- = Surface mount

Blank = Non-latch type

4.5 = 4.5 VDC S = Single coil latch type NE = Low power consumption (Non-latch)

NU = Standard

Blank = Tube

-L = Embossed tape on reel

5 = 5 VDC

NUN = Minimum footprint

12 = 12 VDC

24 = 24 VDC

NEN = Low power consumption (Non-latch),

Minimum footprint

One world. One KEMET

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1

Miniature Signal Relays – UA2/UB2 Series

Dimensions – Millimeters

UA2 Series

B Maꢁiꢂuꢂ

ꢀ Maꢁiꢂuꢂ

ꢃ Maꢁiꢂuꢂ

ꢄ

ꢅꢆꢋ

ꢅꢆꢇ

ꢅꢆ2

ꢉꢆꢋ

ꢊꢆ2 ꢈ_ꢉꢈ_ꢉ

ꢈ₂

UB2 Series

B Maꢁiꢂuꢂ

ꢀ Maꢁiꢂuꢂ

ꢃ Maꢁiꢂuꢂ

ꢉꢆꢋ

ꢅꢆ2

ꢅꢆꢇ

ꢉꢆꢋ

ꢈ₂

ꢈ_ꢊ

ꢊꢆ2 ꢈ_ꢉꢈ_ꢉ

Series

D

H

B

P₁

P₂

P₃

K

UA2 (NU, NE)

UB2 (NU, NE)

10.6

8.0

8.8

9.0

5.7

2.2

3.2

—

3.4

—

7.4

5.7

UB2 (NUN, NEN)

—

General tolerance: ±0.3

Tolerance of lead pitch: ±0.15

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2

Miniature Signal Relays – UA2/UB2 Series

Pin Conﬁgurations

Bottom view

Single ꢎꢄil latꢎꢏ tyꢅe

ꢐReset ꢅꢄsitiꢄnꢑ

ꢒꢄnꢀlatꢎꢏ tyꢅe

ꢐꢒꢄnꢀenergiꢓeꢔ ꢅꢄsitiꢄnꢑ

ꢇ

2

ꢈ

ꢉ

ꢇ

2

ꢈ

ꢉ

ꢁ

ꢀ

ꢁ ꢀ

S R

ꢀ ꢁ

ꢊ

ꢋ

ꢌ

ꢍ

ꢊ

ꢋ

ꢌ

ꢍ

Sꢂ ꢃꢄil ꢅꢄlarity ꢆꢄr Set

Rꢂ ꢃꢄil ꢅꢄlarity ꢆꢄr Reset

Safety Standards and Ratings

Certiﬁcation Body

Mark

Speciﬁcation

File Number

Rating

UL Recognized

(UL508)¹

UL

E73266

30 VDC, 1 A (resistive)

110 VDC, 0.3 A (resistive)

125 VAC, 0.5 A (resistive)

CSAꢀCertiﬁed

(CSA 22.2 #14)

CSA

LR46266

¹Spacing: UL840

²Spacing: CSA std950

Certiﬁcation Body

Mark

Speciﬁcation

File Number

Class

Rating

Creepage and clearance of coil to

contact is more than 2 mm

(According to EN60950)

TUVꢀCertiﬁed

(EN61810)

TUV

2050596

Basic insulation

Environmental Compliance

All KEMET relays are RoHS Compliant.

RꢀꢁS ꢂꢀꢃꢄliant

R7004_UA2_UB2 • 8/8/2017

3

Miniature Signal Relays – UA2/UB2 Series

Table 1 – Ratings & Part Number Reference

Nominal Coil Voltage

Part Number

(VDC)

Lead Type

Packaging

UA2-3(1)NU

UA2-4.5(1)NU

UA2-5(1)NU

UA2-12(1)NU

UA2-24NU¹

3

4.5

5

12

24

3

4.5

5

3

Radial

Tube

UA2-3NE¹

Radial, Low power consumption

Surface mount

UA2-4.5NE¹

UA2-5NE¹

UB2-3(1)NU

UB2-4.5(1)NU

UB2-5(1)NU

4.5

5

Surface mount

Tube

UB2-12(1)NU

12

24

3

4.5

5

3

4.5

5

12

24

3

4.5

5

3

4.5

5

12

24

3

4.5

5

3

4.5

5

12

24

3

4.5

5

Surface mount

Surface mount, Low power consumption

Surface mount

Tube

UB2-24NU¹

UB2-3NE¹

UB2-4.5NE¹

UB2-5NE¹

Tube

UB2-3(1)NU-L

UB2-4.5(1)NU-L

UB2-5(1)NU-L

UB2-12(1)NU-L

UB2-24NU-L¹

UB2-3NE-L¹

Tape on Reel

Tube

Surface mount

Surface mount, Low power consumption

Surface mount, Minimum footprint

Surface mount, Low power consumption, Minimum Footprint

Surface mount, Minimum footprint

Surface mount, Low power consumption, Minimum Footprint

UB2-4.5NE-L¹

UB2-5NE-L¹

UB2-3(1)NUN

UB2-4.5(1)NUN

UB2-5(1)NUN

UB2-12(1)NUN

UB2-24NUN¹

UB2-3NEN¹

Tube

UB2-4.5NEN¹

UB2-5NEN¹

UB2-3(1)NUN-L

UB2-4.5(1)NUN-L

UB2-5(1)NUN-L

UB2-12(1)NUN-L

UB2-24NUN-L¹

UB2-3NEN-L¹

UB2-4.5NEN-L¹

UB2-5NEN-L¹

Tape on Reel

(1) To complete KEMET part number, leave blank for Non-latch or insert S for Single coil. Designates latch type.

¹Only available as Non-latch.

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4

Miniature Signal Relays – UA2/UB2 Series

Land Pattern – Millimeters

UA2 Series (bottom view)

ꢉꢄꢊ

2ꢄ2 2ꢄ2

ꢇꢄꢅ

ꢀ ꢁ ꢂ ꢃꢄꢀꢅ

ꢆꢄ2

ꢈ

UB2 Series (top view)

ꢉꢄꢊ

ꢇꢄꢅ

ꢆꢄ2

2ꢄ2 2ꢄ2

ꢈ

ꢋ

ꢇꢄꢇꢇ

Series

UA2 (NU, NE)

V

X

—

3.2

5.3

4.6

UB2 (NU, NE)

3.1

2.25

UB2 (NUN, NEN)

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Miniature Signal Relays – UA2/UB2 Series

Soldering Process

UA2 – Through-hole Mounting

Automatic Soldering

Preheating: 110–120°C/110 seconds (maximum)

Solder temperature: 260°C maximum

Solder time: 5 seconds maximum

Note: KEMET recommends cooling down a printed circuit board to less than 110°C within 40 seconds after soldering.

Manual Soldering

Solder temperature: 350°C maximum

Solder time: 3 seconds maximum

UB2 – Surface Mounting

ꢀRS Metꢁꢂꢃ

ꢐeꢊꢑerature

(˚ꢒꢌ

Maꢉiꢊuꢊ 2ꢍꢄ˚ꢒ

22ꢄ

2ꢄꢄ

ꢅꢆꢄ

ꢍꢎ ꢈMaꢉiꢊuꢊ ꢏꢄꢌ

ꢐiꢊe ꢈseꢓꢂnꢃsꢌ

ꢏꢄ ꢈMaꢉiꢊuꢊ ꢅ2ꢄꢌ

ꢅꢇꢄ ꢈMaꢉiꢊuꢊ ꢋꢄꢄꢌ

ꢀ

Note:ꢀTemperatureꢀproﬁleꢀshowsꢀprintedꢀcircuitꢀboardꢀsurfaceꢀtemperatureꢀonꢀtheꢀrelayꢀterminalꢀportion.

PleaseꢀconsultꢀKEMETꢀifꢀyouꢀwishꢀtoꢀuseꢀaꢀtemperatureꢀproﬁleꢀotherꢀthanꢀabove.

R7004_UA2_UB2 • 8/8/2017

6

Miniature Signal Relays – UA2/UB2 Series

Contact Speciﬁcations

Item

UA2/UB2

Contact Form

2 Form C

Contact Material

Silver alloy with gold alloy overlay

30 W, 37.5 VA

Maximum Switching Power

Maximum Switching Voltage

Maximum Switching Current

Maximum Carrying Current

220 VDC, 250 VAC

1 A

Contact Ratings

1 A

Minimum Contact Ratings

Initial Contact Resistance

Operating Time (excluding bounce)

Release Time (excluding bounce)

Insulation Resistance

10 mVDC, 10 µA^*1

100ꢀmΩꢀmaximumꢀ(initial)

Approximately 2 milliseconds

Approximately 1 milliseconds

1,000ꢀMΩꢀatꢀ500ꢀVDC

Between Open Contacts

Between Adjacent Contacts

Between Coil and Contacts

1,000 VAC (for one minute), 1,500 V surge (10 x 160 µs)^*2

1,500 VAC (for one minute), 2,500 V surge (2 x 10 µs)^*3

Withstand Voltage

735 m/s²(75 G) – misoperation

Shock Resistance

980 m/s²(100 G) – destructive failure

10 to 55 Hz, double amplitude 3 mm (20 G) – misoperation

10 to 55 Hz, double amplitude 5 mm (30 G) – destructive failure

Vibration Resistance

Ambient Temperature

Coil Temperature Rise

−40ꢀtoꢀ+85°C

18°C at nominal coil voltage (140 mW)

5 x 10⁷operations (Non-latch type)^*4

Non-load

Load

1 x 10⁷operations (Latch type)

RunningꢀSpeciﬁcations

30 VDC 1 A (resistive), 1 x 10⁵operations at 20°C, 1 Hz

125 VAC 0.3 A (resistive), 1 x 10⁵operations at 20°C, 1 Hz

Weight

Approximately 1 g

^*1This value is a reference value in the resistance load. Minimum capacity changes depending on the switching frequency, environment temperature,

and load.

^*2Rise time: 10 µs; decay time to half crest: 160 µs.

^*3Rise time: 2 µs; decay time to half crest: 10 µs.

^*4This shows the number of operations with fatal defects. Stable characteristics are maintained for 1 x 10⁷operations.

Coil Speciﬁcations

Non-latch Type (at 20°C)

Nominal Coil Voltage

(VDC)

Coil Resistance

(Ω) ±10%

Operating Voltage¹

(VDC)

Release Voltage¹

(VDC)

Nominal Operating

Power (mW)

3

4.5

5

64.3

2.25

3.38

3.75

9.0

0.3

0.45

0.5

140

230

145

178

12

24

1028

2504

1.2

18.0

2.4

¹Test by pulse voltage.

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7

Miniature Signal Relays – UA2/UB2 Series

Coil Speciﬁcations cont’d

Single Coil Latch Type (at 20°C)²

Nominal Coil Voltage

(VDC)

Coil Resistance

Set Voltage¹

(VDC)

Reset Voltage¹

(VDC)

Nominal Operating

Power (mW)

(Ω) ±10%

3

4.5

5

90

2.25

3.38

3.75

9.0

2.25

3.38

3.75

9.0

100

202.5

250

12

1440

¹Test by pulse voltage.

²ꢀLatchꢀtypeꢀrelaysꢀshouldꢀbeꢀinitializedꢀtoꢀaꢀknownꢀpositionꢀbeforeꢀusing.ꢀOnlyꢀtheꢀspeciﬁedꢀpolarityꢀshouldꢀbeꢀusedꢀtoꢀenergizeꢀtheꢀcoil.

Non-latch, Low Power Consumption (NE, NEN) Type (at 20°C)

Nominal Coil Voltage

(VDC)

Coil Resistance

(Ω) ±10%

Operating Voltage¹

(VDC)

Release Voltage¹

(VDC)

Nominal Operating

Power (mW)

3

4.5

5

90

2.25

3.38

3.75

0.3

0.45

0.5

100

202.5

250

¹Test by pulse voltage.

Recommended Relay Drive Conditions

Coil Type

Rating

Ambient Temperature

Non-latch

Voltage:ꢀ≤ꢀ±5%ꢀofꢀnominalꢀvoltage

Square pulse (rise and fall time is rapid)

Pulseꢀheight:ꢀ≤ꢀ±5%ꢀofꢀnominalꢀvoltage

Pulse Width: > 10 ms

−40ꢀtoꢀ+85°C

Single Coil

Marking

Top view

ꢀart nuꢁꢂer

ꢃate ꢄꢅꢆe

ꢃireꢄtiꢅn ꢁarꢊ

ꢋꢉin ꢌꢅꢍ ꢎ anꢆ ꢏꢐ

1A1727F

UA2-5NU

JAPAN

ꢇꢅuntry ꢅꢈ ꢅrigin

ꢇꢅꢁꢉany lꢅgꢅ

R7004_UA2_UB2 • 8/8/2017

8

Miniature Signal Relays – UA2/UB2 Series

Performance Data

Coil Temperature Rise

Temperature is measured by coil resistance

Coil temperature

Rise (°C )

Rise (°C)

Applied power 0.23W

60

30

40

20

0

20

10

0

Applied power 0.14W

Applied power 0.1W

0

100

200

300

0

5

10

15

20

Applied power (mW)

Applied time (minute)

Switching Capacity

Maximum Coil Voltage

Maximum Values

Maximum value of permissible alteration

DC(Resistive)

AC(Resistive)

2.0

200

Ratio

nomina

coil

voltage

(%)

Ratio of

150

1.0

0.5

Contact

current (A)

nominal

coil

voltage

100

(%)

0.2

0.1

50

10

20

50

100

-40 -20

0

20 40

60 80 100

250VAC

220VDC

VAC

Contact voltage (V)

Ambient temperature (°C)

0VDC

Applied Voltage vs. Timing

(Sample: UA2–5NU)

(Without coil diode)

4

3

2

1

3

Release

time

(ms)

Operate

2

time

(ms)

1

0

100

150

200

250

0

100

200

300

400

Applied power (mW)

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9

Miniature Signal Relays – UA2/UB2 Series

Performance Data cont’d

Operate and Release Voltage vs. Ambient Temperature

This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be

applied higher than this value for safe operation. For hot start operation, please inquire with KEMET.

100

Must operate voltage

80

60

40

20

0

Operate voltage (typical)

Ratio of nominal

coil voltage (%)

Release voltage (typical)

-40

-20

0

20

40

60

80

100

Ambient temperature (°C)

Running Test (Non-load)

(Load:ꢀnone;ꢀDrive:ꢀ5ꢀVDC,ꢀ50ꢀHz,ꢀ50%ꢀduty;ꢀAmbientꢀTemperature:ꢀroomꢀtemperature;ꢀSample:ꢀUA2–5NU,ꢀ20ꢀpieces)

10000

5

Operate voltage

Release voltage

1000

100

10

4

3

2

1

0

Contact

resistance

(mΩ)

Operate

voltage

(V)

Release

voltage

(V)

0

20

50

100

500

1000

0

20

50

100

500

1000

Operations (×10⁴)

Running Test (Load)

(Load:ꢀ50ꢀVDC,ꢀ0.1ꢀAꢀresistive;ꢀDrive:ꢀ5ꢀVDC,ꢀ5ꢀHz,ꢀ50%ꢀduty;ꢀAmbientꢀTemperature:ꢀ85°C;ꢀSample:ꢀUA2–5NU,ꢀ10ꢀpieces)

5

4

3

2

1

0

10000

1000

100

Operate voltage

Contact

resistance

(mΩ)

Operate

voltage

(V)

Release voltage

Release

0

2

5

10

50

100

10

Operations (×10⁴)

0

2

5

10

50

100

Operations (×10⁴)

R7004_UA2_UB2 • 8/8/2017 10

Miniature Signal Relays – UA2/UB2 Series

Performance Data cont’d

Breakdown Voltage

(Sample: UA2–5NU, 10 pieces)

(a) Between open contacts

(b) Between adjacent contacts

100

50

0

Distribution

Distribution (%)

0

0.5

1.0

1.5

2.0

1.0

1.5

2.0

2.5

Breakdown voltage (K V)

(C) Between coil and contact

100

50

0

Distribution (%)

1.5

2.0

2.5

2.5over

Breakdown voltage (K V)

Alteration of Voltage in Dense Mounting

(magnetic interference)

Alternation of operate voltage

+40

+30

+20

+10

0

+40

+30

+20

+10

0

Ratio of

alternation (%)

-10

-20

-30

-40

-10

-20

-30

-40

a

b

c

d

e

f

a

b

c

d

e

f

Mounting layout

Device under test

OFF

ON

OFF

ON

3mm

2.5mm

OFF

d

a

b

c

ON

OFF

e

f

R7004_UA2_UB2 • 8/8/2017 11

ꢙꢙꢗꢙꢘꢗ

ꢙ2Bꢙ

ꢙ2

Miniature Signal Relays – UA2/UB2 Series

Tube Packing – Millimeters

ꢀꢁ ꢂieꢃes/ꢄuꢅe ꢆantiꢇstatiꢃꢈ

ꢉꢀꢊꢀ

ꢀꢋꢁ

ꢌireꢃtiꢍn ꢍꢎ relay ꢏireꢃtiꢍn ꢐarꢑ

ꢉꢁꢊꢉ

Ruꢅꢅer stꢍꢂꢂer ꢆꢔreenꢈ

Ruꢅꢅer stꢍꢂꢂer ꢆꢒellꢍꢓꢈ

Tape & Reel Packaging Information (UB2 only) – Millimeters

Appearance

Reel

ꢄꢅꢅ ꢆieꢇes/Reel

Reel ꢈiaꢉeterꢊ ꢋꢄꢅꢉꢉ

ꢁꢉꢖꢔss

ꢃarrying taꢆe

ꢌꢔꢆ ꢇꢔꢕer taꢆe

ꢉaꢝꢘ ꢄꢘꢙ

A

Tape Dimensions

ꢙꢘꢜꢚ

2ꢘꢅ

ꢅꢘꢗ

ꢗ

Φ ꢙꢘꢚ

Φ 2ꢘ2

Series

NU-L, NE-L

NUN-L, NEN-L

A

B

8.2

6.7

ꢙꢙꢘꢚ

Maximum 9.4

Maximum 9.5

2ꢗꢘꢅ

Relay Direction Mark and Tape Carrying Direction

Sꢆrꢔꢇꢞet ꢟꢔle

ꢍireꢇtiꢔn ꢉarꢞ

ꢍireꢇtiꢔn ꢔꢠ unreeling

R7004_UA2_UB2 • 8/8/2017 12

Miniature Signal Relays – UA2/UB2 Series

Notes on Using Relays

1. Contact Load

Makeꢀsureꢀthatꢀtheꢀcontactꢀloadꢀisꢀwithinꢀtheꢀspeciﬁedꢀrange;ꢀotherwise,ꢀtheꢀlifetimeꢀofꢀtheꢀcontactsꢀwillꢀbeꢀshortenedꢀ

considerably. Note that the running performance shown is an example, and that it varies depending on parameters such

as the type of load, switching frequency, driver circuit, and ambient temperature under the actual operating conditions.

2. Driving Relays

• Ifꢀtheꢀinternalꢀconnectionꢀdiagramꢀofꢀaꢀrelayꢀshowsꢀ+ꢀandꢀ-ꢀsymbolsꢀonꢀtheꢀcoil,ꢀapplyꢀtheꢀratedꢀvoltageꢀtoꢀtheꢀrelayꢀinꢀ

theꢀspeciﬁedꢀdirection.ꢀIfꢀaꢀrippledꢀDCꢀcurrentꢀsourceꢀisꢀused,ꢀabnormalitiesꢀsuchꢀasꢀheatꢀatꢀtheꢀcoilꢀmayꢀoccur.

• The maximum voltage that can be applied to the coil of the relay varies depending on the ambient temperature.

Generally, the higher the voltage applied to the coil, the shorter the operating time. Note, however, that high voltage

also increases the bounce of the contacts and the contact opening and closing frequency, which may shorten the

lifetime of the contacts.

Nominal

coil voltage

0

<1msec.

• For consistent operation, the driving voltage should have rise and fall times of less than 1 ms.

• Forꢀaꢀlatchingꢀrelay,ꢀapplyꢀaꢀvoltageꢀtoꢀtheꢀcoilꢀaccordingꢀtoꢀtheꢀpolarityꢀspeciﬁedꢀinꢀtheꢀinternalꢀconnectionꢀdiagramꢀofꢀ

the relay.

• If a current is applied to the coil over a long period of time, the coil temperature rises, promoting generation of organic

gas inside the relay, which may result in faulty contacts. In this case, use of a latching relay is recommended.

• The operating time and release time indicate the time required for each contact to close after the voltage has been

applied to or removed from the coil. However, because the relay has a mechanical structure, a bounce state exists

at the end of the operating and release times. Furthermore, because additional time is required until the contact

stabilizes after being in a high-resistance state, care must be taken when using the relay at high speeds.

3. Operating Environment

• Makeꢀsureꢀthatꢀtheꢀrelayꢀmountedꢀinꢀtheꢀapplicationꢀsetꢀisꢀusedꢀwithinꢀtheꢀspeciﬁedꢀtemperatureꢀrange.ꢀUseꢀofꢀaꢀrelayꢀ

at a temperature outside this range may adversely affect insulation or contact performance.

• Ifꢀtheꢀrelayꢀisꢀusedꢀforꢀaꢀlongꢀperiodꢀofꢀtimeꢀinꢀhighlyꢀhumidꢀ(RHꢀ85%ꢀorꢀhigher)ꢀenvironment,ꢀmoistureꢀmayꢀbeꢀ

absorbed into the relay. This moisture may react with the NOx and SOx generated by glow discharges that occur when

the contacts are opened or closed, producing nitric or sulfuric acid. If this happens, the acid produced may corrode

the metallic parts of the relay, causing operational malfunction.

• If any material containing silicon (silicon rubber, silicon oil, and silicon based coating material) is used in the

neighborhood of relay, there is some possibility that these materials will emit silicon gas that will penetrate the

relay. In this case, the switching contact may generate silicon compounds on the surface of contacts. This silicon

compound may result in contact failure. Avoid use of relay in such an environment.

R7004_UA2_UB2 • 8/8/2017 13

Miniature Signal Relays – UA2/UB2 Series

Notes on Using Relays cont’d

• Because the operating temperature range varies depending on the humidity, use the relay in the temperature range

illustratedꢀinꢀtheꢀﬁgureꢀbelow.ꢀPreventꢀtheꢀrelayꢀfromꢀbeingꢀfrozenꢀandꢀavoidꢀtheꢀgenerationꢀofꢀcondensation.

85

80

60

Humidity

(%RH)

40

20

5

-60 -40 -20

0 20 40 60 80 100

Temperature (°C )

• The relay maintains constant sealability under normal atmospheric pressure (810 to 1,200 hpa). Its sealability may

be degraded or the relay may be deformed and malfunction if it is used under barometric conditions exceeding the

speciﬁedꢀrange.

• The same applies when the relay is stored or transported. Keep the upper-limit value of the temperature to which the

relay is exposed after it is removed from the carton box to within 50°C.

• Permanent magnets are used in polarized relays. For this reason, when magnets, transformers, or speakers are

located nearby the relay characteristics may change and faulty operations may result.

• If excessive vibration or shock is applied to the relay, it may malfunction and the contacts remain closed. Vibration or

shock applied to the relay during operation may cause considerable damage to or wearing of the contacts. Note that

operation of a snap switch mounted close to the relay or shock due to the operation of magnetic solenoid may also

cause malfunctioning.

4. Mounting

• When mounting a relay onto a PC board using an automatic chip mounter, if excessive force is applied to the cover

of the relay when the relay is chucked or inserted, the cover may be damaged or the characteristics of the relay

degraded. Keep the force applied to the relay to within 1 kg.

• Avoid bending the pins to temporarily secure the relay to the PC board. Bending the pins may degrade sealability or

adversely affect the internal mechanism.

• Ventilation immediately after soldering is recommended. Avoid immersing the relay in cleaning solvent immediately

after soldering due to the danger of thermal shock being applied to the relay.

• Use an alcohol-based or water-based cleaning solvent. Never use thinner and benzene because they may damage the

relay housing.

• Do not use ultrasonic cleaning because the vibration energy generated by the ultrasonic waves may cause the

contacts to remain closed.

R7004_UA2_UB2 • 8/8/2017 14

Miniature Signal Relays – UA2/UB2 Series

Notes on Using Relays cont’d

5. Handling and Storage

• Relays are packaged in magazine cases for shipment. If a space is created in the case after some relays have been

removed, be sure to insert a stopper to secure the remaining relays in the case. If relays are not well secured, vibration

during transportation may cause malfunctioning of the contacts.

• Exercise care in handling the relay so as to avoid dropping it or allowing it to fall. Do not use a relay that has been

dropped.ꢀIfꢀaꢀrelayꢀdropsꢀfromꢀaꢀworkbenchꢀtoꢀtheꢀﬂoor,ꢀaꢀshockꢀofꢀ9,800ꢀm/s²(1,000 G) or more is applied to the relay,

possibly damaging its functions. Even if a light shock has been applied to the relay, thoroughly evaluate its operation

before using it.

• Latching relays are factory-set to reset state for shipment. A latching relay may be set, however, by vibration or shock

applied while being transported. Be sure to forcibly reset the relay before using it in the application set. Also note that

the relay may be set by unexpected vibration or shock when it is used in a portable set.

• The sealability of a surface mount (SMT) relay may be lost if the relay absorbs and is then heated during soldering.

When storing relays, therefore, observe the following points:

1. ꢀForꢀstandardꢀpacking,ꢀpleaseꢀuseꢀrelaysꢀwithinꢀ12ꢀmonthsꢀafterꢀdeliveryꢀ(storageꢀconditions:ꢀ30°C/60%ꢀRH).ꢀIfꢀtheꢀ

relays have moisture absorption, dehumidify as follows:

–ꢀTapeꢀPackaging:ꢀ50ꢀ±5°C,ꢀ200–300ꢀhours.

–ꢀSimpleꢀRelay:ꢀ85ꢀ±5°C,ꢀ48ꢀhours.

2.ꢀForꢀMBBꢀpacking,ꢀpleaseꢀuseꢀrelaysꢀwithinꢀ2ꢀyearsꢀafterꢀdeliveryꢀ(storageꢀconditions:ꢀ30°C/60%ꢀRH).ꢀAfterꢀ

openingꢀMBBꢀpacking,ꢀpleaseꢀuseꢀwithinꢀ3ꢀmonthsꢀ(storageꢀconditions:ꢀ30°C/60%ꢀRH).

R7004_UA2_UB2 • 8/8/2017 15

Miniature Signal Relays – UA2/UB2 Series

KEMET Electronics Corporation Sales Ofﬁces

Forꢀaꢀcompleteꢀlistꢀofꢀourꢀglobalꢀsalesꢀof ꢀces,ꢀpleaseꢀvisitꢀwww.kemet.com/sales.

Disclaimer

Allꢀproductꢀspeci ꢀcations,ꢀstatements,ꢀinformationꢀandꢀdataꢀ(collectively,ꢀtheꢀ“Information”)ꢀinꢀthisꢀdatasheetꢀareꢀsubjectꢀtoꢀchange.ꢀTheꢀcustomerꢀisꢀresponsibleꢀforꢀ

checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed.

All Information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.

StatementsꢀofꢀsuitabilityꢀforꢀcertainꢀapplicationsꢀareꢀbasedꢀonꢀKEMETꢀElectronicsꢀCorporation’sꢀ(“KEMET”)ꢀknowledgeꢀofꢀtypicalꢀoperatingꢀconditionsꢀforꢀsuchꢀ

applications,ꢀbutꢀareꢀnotꢀintendedꢀtoꢀconstituteꢀ–ꢀandꢀKEMETꢀspeci ꢀcallyꢀdisclaimsꢀ–ꢀanyꢀwarrantyꢀconcerningꢀsuitabilityꢀforꢀaꢀspeci ꢀcꢀcustomerꢀapplicationꢀorꢀuse.ꢀ

The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any

technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no

obligation or liability for the advice given or results obtained.

Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component

failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards

(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or

property damage.

Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other

measures may not be required.

KEMET is a registered trademark of KEMET Electronics Corporation.

R7004_UA2_UB2 • 8/8/2017 16


型号：	UA2-12NU
厂家：	KEMET CORPORATION
描述：	Power/Signal Relay 继电器
文件：	总16页 (文件大小：1311K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UA2-12NU [KEMET]

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