●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC Tokin for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2006.03.17 P0612EMDD03VOL02E
UA2/UB2 SERIES
DIMENSIONS AND PAD LAYOUTS
(Unit : mm [inch])
UA2 SERIES
●
STANDARD
UB2 SERIES
●
STANDARD
●
MINIMUM FOOTPRINT TYPE
2
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC Tokin for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2006.03.17 P0612EMDD03VOL02E
UA2/UB2 SERIES
PIN CONFIGURATIONS
(bottom view)
UA2 SERIES
UB2 SERIES
MARKINGS
(top view)
3
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC Tokin for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2006.03.17 P0612EMDD03VOL02E
UA2/UB2 SERIES
PERFORMANCE CHARACTERISTICS
(Community)
Contact Form
Maximum Switching Power
Maximum Switching Voltage
Maximum Switching Current
Maximum Carrying Current
2 Form c
30 W (resistive)
220 Vdc
1A
1A
37.5 VA (resistive)
250 Vac
Contact Ratings
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
Nominal Operating Power
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
No-load
Running specifications
Load
Weight
＊1
＊2
＊3
＊4
10 mV.dc, 10
µA
＊4
100 mΩ 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 MΩ 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
)
2
735 m / s (misoperating)
2
980 m / s (destructive failure)
10 to 55 Hz at double amplitude of 3 mm
(misoperating)
10 to 55 Hz, double amplitude of 5 mm
(Destructive failure)
- 40 to +85°C
18 degrees at nominal coil voltage (140 mW)
5 × 10
＊3
operations (Non-latch type)
7
1 × 10 operations (Latch type)
5
30 Vdc 1 A (resistive), 1 × 10 operations at 20°C
5
125 Vac 0.3 A (resistive), 1 × 10 operations at 20°C
Approximately 1 grams
7
Between Open Contacts
Between Adjacent Contacts
Between Coil and Contact
rise time : 10
µs,
decay time to half crest : 160
µs
rise time : 2
µs,
decay time to half crest : 10
µs
This shows a number of operation where it can be running by which a fatal is not caused, and number of operation by
7
wich a stesdy characteristic is maintained is 1 × 10 operations.
This value is a reference value in the resistive load.
Minimum capacity changes depending on seitching frequency and enviroment temperature and the load.
SAFETY STANDARD AND RATING
CSA Certificated
UL Recognized
＊
(CSA C22.2 No14)
☆
(UL508)
File No E73266
File No LR46266
30 Vdc, 1 A (Resistive)
110 Vdc, 0.3 A (Resistive)
125 Vac, 0.3 A (Resistive)
TUV Certified
(EN61810)
No.2050596
Creepage and clearance of coil to contact is over
than 2 mm (According EN60950)
Basic insulation class
＊
☆
Spacing : UL840
Spacing : CSAstd950
RECOMMENDED RELAY DRIVE CONDITIONS
Drive under condetions. If it is impossible, please inquire to NEC/TOKIN
Nonlatch type
Single coil latch type
Voltage : with ±5% at nominal voltage
Square pulse (rise and fall time is repidly)
pulse height : within ±5% at nominal voltage
pulse width : more than 10 ms
Ambient temperature
- 40 to +85°C
4
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC Tokin for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2006.03.17 P0612EMDD03VOL02E
UA2/UB2 SERIES
PART NUMBER SYSTEM
NOMINAL LINEUP
Non-latch Type
Nominal Coil
Voltage
(Vdc)
1.5
3
4.5
5
6
9
12
24
Coil
Resistance
(Ω) ±10 %
16
64.3
145
178
257
579
1028
2504
Must Operate
Voltage
(Vdc)
1.13
2.25
3.38
3.75
4.5
6.75
9.0
18.0
Must Release
Voltage
(Vdc)
0.15
0.3
0.45
0.5
0.6
0.9
1.2
2.4
at 20°C
Nominal
operate power
(mW)
140
140
140
140
140
140
140
230
at 20°C
Coil
Resistance
(Ω) ±10 %
22.5
90
202.5
250
360
810
1440
4800
Must Operate
Voltage
(Vdc)
1.13
2.25
3.38
3.75
4.5
6.75
9.0
18.0
Must Release
Voltage
(Vdc)
1.13
2.25
3.38
3.75
4.5
6.75
9.0
18.0
Nominal
operate power
(mW)
100
100
100
100
100
100
100
120
Single-Coil Latch Type
Nominal Coil
Voltage
(Vdc)
1.5
3
4.5
5
6
9
12
24
5
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC Tokin for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
总线的演变 首先应该讲讲总线的演变历史，这方面《PC架构系列：CPU/RAM/IO总线的发展历史！》这篇文章写得很好！感谢文章的作者！以下内容大量来自这篇文章，可以说是这篇文章的缩减转载。
公共总线 早期PC中，CPU/RAM/IO都是挂在一条总线上，所有的部件都必须在同步的模式下工作。这样就带来一个"互锁" （locked to each other ）效应：所有设备都被限定在一个通用时钟频...[详细]
FPGA/CPLD
