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參數資料
| 型號： | SM74120 |
| 廠商： | BOURNS INC |
| 元件分類： | 電信用變壓器 |
| 英文描述： | T1/CEPT/ISDN-PRI Transformer |
| 中文描述： | TELECOM TRANSFORMER |
| 文件頁數： | 1/1頁 |
| 文件大小： | 180K |
| 代理商： | SM74120 |
SM74120 - T1/CEPT/ISDN-PRI Transformer
Features
■
Dual SMD package with transmit and
receive transformer
■
Low height of only 6.2 mm
■
Lead free version available (see How to
Order)
■
Lead free versions are RoHS compliant*
Applications
■
Telecom
SM42
1
CORE A
CORE B
2
3
6
7
8
11
10
9
16
14
Electrical Specifications @ 25
°
C
Primary Pins
Core A ........................................16-14
Core B ............................................6-8
Ratio (±2 %)
Core A ..............................1:1 & 1:1.26
Core B ....................................1CT:2CT
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............................................0.80
Core B............................................1.00
HIPOT (VAC) ....................................1500
Operating Temperature (°C) ........0 to +70
*CT : center tap
Packaging Specifications
Tape & Reel* ........................700 pcs./reel
*“E” suffix at end of part number
designates tape & reel packaging, e.g.
SM74120E.
Electrical Schematic
Product Dimensions
16
9
1
8
SM74120
XXYY
12.0
(.472)
0.46
±
.51
(.018
±
0.02)
1.27
(.050)
TYP.
1.02
(0.040)
7.0
(.276)
MAX.
8.76 - 9.52
(.345 - .375)
6.22
(0.245)
MAX.
MAX.
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ±
0.254
(.010)
*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
SM74120E __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
相關PDF資料 |
PDF描述 |
|---|---|
| SM74120EL | T1/CEPT/ISDN-PRI Transformer |
| SM74120E | T1/CEPT/ISDN-PRI Transformer |
| SM74139 | T1/CEPT/ISDN-PRI Dual Transformer |
| SM74139E | T1/CEPT/ISDN-PRI Dual Transformer |
| SM74139EL | T1/CEPT/ISDN-PRI Dual Transformer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SM74120E | 功能描述:變壓器音頻和信號 SDN-PRI TRANSFORMER T1/CEPT RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產品:Splitters and Combiners |
| SM74120EL | 制造商:Bourns / JW Miller 功能描述:Telecom Transformer 1:1/1:1.26/1CT:2CT 1500VAC 0.7Ohm/0.7Ohm Prim. DCR 0.8Ohm/1Ohm Sec. DCR Surface Mount 制造商:Bourns Inc 功能描述:RF TX 0.7OHM PRIM. DCR 0.8OHM SEC. DCR 1:1.26 30PF - Tape and Reel 制造商:Bourns Inc 功能描述:Telecom Transformer 1:1/1:1.26/1CT:2CT 1500VAC 0.7Ohm/0.7Ohm Prim. DCR 0.8Ohm/1Ohm Sec. DCR Surface Mount |
| SM74139 | 制造商:BOURNS 制造商全稱:Bourns Electronic Solutions 功能描述:T1/CEPT/ISDN-PRI Dual Transformer |
| SM74139E | 功能描述:變壓器音頻和信號 SDN-PRI TRANSFORMER T1/CEPT DUAL RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產品:Splitters and Combiners |
| SM74139EL | 功能描述:變壓器音頻和信號 ISDN TRANSFORMER RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產品:Splitters and Combiners |
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