DATA  SHEET
Super-compact size, Slim-package, Surface mounting type
DESCRIPTION
NEC's UA2/UB2 relay ia a new generation Miniature Signal Relay of super-compact size and slim-pakage.But, the latching type production is going to start after June 2000.
FEATURES
™Small mounting size of slim package for dense mounting.™Bellcore (2500 V) and FCC (1500 V) surge capability.
™IEC950/UL1950/EN60950 spacing and high breakdown voltage.(Basic insulation class on 200 V working voltage)™Low power consumption 140 mW
APPLICATIONS
Electronic switching systems, PBX, terminal equipment, telephone system, instrumental equipment.
For Right Use of Miniature Relays
DO NOT EXCEED MAXIMUM RATINGS.
Do not use relays under exceeding conditions such as over ambient temperature, over voltage and over current. Incorrect use could result in abnormal heating, damage to related parts or cause burning.
READ CAUTIONS IN THE SELECTION GUIDE.
Read the cautions described in NEC's "Miniature Relays" (ER0046EJ ∗) when you choose relays for your application.
Document No. ER0450EJ2V0DS00 (2nd edition)Date Published January  2000 M Printed in Japan
The information in this document is subject to change without notice.
©1999
2
Tolerance of lead pitch is ±0.15 mm [0.006 inch]
Another tolerance is ±0.3 mm [0.012 inch]
( ) is reference.
∗ Value of trimmed lead type (NJ type)
mm [inch]
[0.126][0.087][0.087]
(mm) DIMENSIONS AND PAD LAYOUTS (Unit : mm [inch])
UA2 SERIES
UB2 SERIES
mm [inch]
∗6.0 [0.236]
Tolerance of lead pitch is ±0.15 mm [0.006 inch]
Another tolerance is ±0.3 mm [0.012 inch]
( ) is reference.
∗
Value of minimum footprint type (NUN type)
∗
2
.
4
(Bottom view)
Note.  General tolerance : ±0.1
(Bottom view)
Note.  General tolerance : ±0.1
DAT A SHEET  ER0450EJ2V0DS00
3
DAT A SHEET  ER0450EJ2V0DS00PIN CONFIGURATIONS (bottom view)
UA2 SERIES
Index mark of relay direction
Non-latch type (not energized position)Single coil latch type (reset position)
S : Coil polarity of set (operate)
R : Coil polarity of reset (release)
S
R
R
relay direction
Non-latch type (not energized position)Single coil latch type (reset position)
S : Coil polarity of set (operate)R : Coil polarity of reset (release)
UB2 SERIES
MARKINGS (top view)
q Part number w Manufacturer
e Country o
f origin r Date code
t Index mark of relay direction (pin No. 1, 12)
DAT A SHEET  ER0450EJ2V0DS00
4  2 Form c 30 W (resistive)37.
5 VA (resistive)220 Vdc 250 Vac
1 A 1 A
10 mV.dc, 10 µA *4100 m Ω Max. (Initial)
Silver alloy with gold alloy overlay 140 to 230 mW 100 to 120 mW Approximately 2 ms
Approximately 1 ms without diode 1000 M Ω at 500 Vdc
1000 Vac for one minute (1500 V surge, 10 × 160 µs ∗1)
1500 Vac for one minute (2500 V surge, 2 × 10 µs *2)735 m / s 2 (75 G) (misoperating)
980 m / s 2 (100 G) (destructive failure)
10 to 55 Hz at double amplitude of 3 mm (20 G)(misoperating)
10 to 55 Hz, double amplitude of 5 mm (30 G)(Destructive failure) –40 to +85˚C
18 degrees at nominal coil voltage (140 mW)
5 × 107 *3 operations (Non-latch type)1 × 107 operations (Latch type)
30 Vdc 1 A (resistive), 1 × 105 operations at 20˚C 125 Vac 0.3 A (resistive), 1 × 105 operations at 20˚C Approximately 1 grams
Nominal Operating Power
Contact Form
Maximum Switching Power
Maximum Switching Voltage Maximum Switching Current Maximum Carrying Current
Minimum Contact Ratings Initial Contact Resistance Contact Material
Non-Latch Type Single Coil Latch Type
Operate Time (Excluding Bounce)Release Time (Excluding Bounce)Insulation Resistance
Between Open Contacts
Breakdown Voltage
Between Adjacent Contacts Between Coil and Contact
Shock Resistance
Vibration Resistance
Ambient Temperature Coil Temperature Rise
No-load
Load
Weight
PERFORMANCE CHARACTERISTICS (Community)
Running specifications
∗1rise time :10 µs, fall time :160 µs ∗2rise time :  2 µs, fall time :10 µs
∗3This shows a number of operation where it can be running by which a fatal is not caused, and number of operation by wich a stesdy characteristic is maintained is 1 × 107 times.∗4This value is a reference value in the resistive load.
Minimum capacity changes depending on seitching frequency and enviroment temperature and the load.
Contact Ratings
UL Recognized CSA Certificated (UL508)*(CSA C22.2 No14)✩File No E73266File No LR46266
30 Vdc, 1 A (Resistive)110 Vdc, 0.3 A (Resistive)125 Vac, 0.3 A (Resistive)* Spacing : UL114, UL478✩ Spacing : CSAstd950
SAFETY STANDARD AND RATING
5
DAT A SHEET  ER0450EJ2V0DS00PART NUMBER SYSTEM
NOMINAL LINEUP Non-latch Type
Nominal Coil Voltage (Vdc)
1.534.55691224
Coil Resistance (Ω) ±10 %
1664.314517825757910282504
Must Operate Voltage (Vdc)
1.13
2.25
3.383.75
4.56.759.018.0
Must Release Voltage (Vdc)
0.150.30.450.50.60.91.22.4
at 20˚C
Nominal operate power
profile中文(mW)
140140140140140140140230
Single-Coil Latch Type
Nominal Coil Voltage (Vdc)
1.534.55691224
Coil Resistance (Ω) ±10 %
22.590202.525036081014404800
Must Operate Voltage (Vdc)
1.13
2.25
3.383.75
4.56.759.018.0
Must Release Voltage (Vdc)
1.13
2.25
3.383.75
4.56.759.018.0
at 20˚C
Nominal operate power
(mW)
100100100100100100100120
UB2 – 3 S  N U – L
Option
NU : Standard
NJ : Trimmed lead typr of UA2
NUN : Minimum footprint type of UB2Packing code
Nil : Tube (All of UA2, To be select for UB2)
L : Embossed carrying tape of L type (UB2 only)R : Embossed carrying tape of R type (UB2 only)Lach typr
Nil : Non –latch typr
S : Single coil latch typr
Nominal coil voltage
A numerical value of coil voltage (See the following lineup)Series name
UA2: UA2 Series UB2: UB2 Series
DAT A SHEET  ER0450EJ2V0DS00
6Coile Temperature Rise
3020100
Applied Power (mW) at 20 degreeC C o i l  T e m p e r a t u r e  R i s e  (d e g )
)
Energized Time (minute)
Switching capacity Maximum coil voltage
Operate Time and Release Time (Sample : UA2-5NU)
S w i c h i n g  C u r r e n t  (A )
M a x i m u m  c o i l  v o l t a g e (r a t i o  t o  r a t e d  v o l t a g e ) (%)
1.02.00.50.20.1–20
20
40
60
80
100
–40
Ambient Temperature (degreeC)
15020010050034
2100
150
100
200
Applied Power (mW)O p e r a t e  T i m e  (m s )
R e l e a s e  T i m e  (m s )
250
34
2100
150
100
200
Applied Power (mW)
(Without diode)
250

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