SM74139 [BOURNS]
T1/CEPT/ISDN-PRI Dual Transformer; T1 / CEPT / ISDN -PRI双变压器
| 型号： | SM74139 |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | T1/CEPT/ISDN-PRI Dual Transformer |
| 文件： | 总1页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
■ Surface mount
Applications
■ Telecom
■ Dual transformer for transmit and receive
■ 1500 VAC HIPOT
SM74139
YYWW
■ Lead free version available (see How to
Order)
■ Lead free versions are RoHS compliant*
SM74139 - T1/CEPT/ISDN-PRI Dual Transformer
Electrical Specifications @ 25 °C
Product Dimensions
Electrical Schematic
Primary Pins
12.82
MAX.
(.505)
CORE A
Core A ............................................1-3
Core B ............................................6-8
Ratio (±± ꢀ%
Core A & B ......................1CT : 1.15CT
OCL (mH% min.
Core A & B ......................................1.±
Leakage Inductance (µH% max.
Core A & B ....................................0.60
Cww (pF% max.
Core A & B........................................30
DCR of primary (Ω% max.
1
16
15
16
9
8
7.11
(.280)
9.52
(.375)
MAX.
TYP.
MAX.
SM74139
(DATECODE%
2
3
1
1.27
(.050)
.457 ± .05
(.018 ± .002)
14
11
Core A & B ....................................0.70
DCR of secondary (Ω% max.
Core A & B ....................................0.75
Operating Temperature (°C% ........0 to +70
CORE B
1.01
(.040)
6
*CT : center tap
6.22
MAX.
(.245)
7
8
10
9
Packaging Specifications
Tape & Reel* ........................700 pcs./reel
*“E” suffix at end of part number
designates tape & reel packaging, e.g.
SM74139E.
MM
(INCHES)
DIMENSIONS ARE:
TOLERANCE:
How to Order
0.254
(.010)
SM74139E __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free%
03/05
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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