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參數資料
| 型號： | SM74139EL |
| 廠商： | BOURNS INC |
| 元件分類： | 電信用變壓器 |
| 英文描述： | T1/CEPT/ISDN-PRI Dual Transformer |
| 中文描述： | TELECOM TRANSFORMER |
| 封裝： | ROHS COMPLIANT |
| 文件頁數： | 1/1頁 |
| 文件大小： | 180K |
| 代理商： | SM74139EL |
SM74139 - T1/CEPT/ISDN-PRI Dual Transformer
Features
■
Surface mount
■
Dual transformer for transmit and receive
■
1500 VAC HIPOT
■
Lead free version available (see How to
Order)
■
Lead free versions are RoHS compliant*
Applications
■
Telecom
Electrical Specifications @ 25
°
C
Primary Pins
Core A ............................................1-3
Core B ............................................6-8
Ratio (±2 %)
Core A & B ......................1CT : 1.15CT
OCL (mH) min.
Core A & B ......................................1.2
Leakage Inductance (μH) max.
Core A & B ....................................0.60
Cww (pF) max.
Core A & B........................................30
DCR of primary (
) max.
Core A & B ....................................0.70
DCR of secondary (
) max.
Core A & B ....................................0.75
Operating Temperature (°C) ........0 to +70
*CT : center tap
Product Dimensions
SM74139
12.82
(.505)
16
9
1
8
MAX.
7.11
(.280)
MAX.
9.52
(.375)
MAX.
1.27
(.050)
.457
±
.05
(.018
±
.002)
TYP.
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ±
0.254
(.010)
Electrical Schematic
1
CORE A
CORE B
2
3
6
7
8
11
10
9
16
15
14
Packaging Specifications
Tape & Reel* ........................700 pcs./reel
*“E” suffix at end of part number
designates tape & reel packaging, e.g.
SM74139E.
(6.22
1.01
(.040)
SM43
*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.
03/05
*RHAVALABE
VRSONS
How to Order
SM74139E __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
相關PDF資料 |
PDF描述 |
|---|---|
| SM74346 | T1/CEPT/ISDN Transformer |
| SM74346E | T1/CEPT/ISDN Transformer |
| SM74346EL | T1/CEPT/ISDN Transformer |
| SM75056 | T1/E1 Transformer |
| SM75056E | T1/E1 Transformer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SM74139XEL | 制造商:Bourns Inc 功能描述:MAGNETICS - T1/CEPT/ISDN TRANSFORMER - Tape and Reel |
| SM741SDX | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Tiny 7A MOSFET Gate Driver |
| SM74202 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:100V Current Mode PWM Controller |
| SM74203 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SM74203 60V Low Side Controller for Boost and SEPIC |
| SM74301 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:100V, 350 mA Constant On-Time Buck Switching Regulator |
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