74139 Transformer Datasheet

74139 Datasheet, PDF, Equivalent


Part Number

74139

Description

T1/CEPT/ISDN-PRI Dual Transformer

Manufacture

Bourns Electronic Solutions

Total Page 1 Pages
Datasheet
Download 74139 Datasheet


74139
YYSWMW74139
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
SM74139 - T1/CEPT/ISDN-PRI Dual Transformer
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
Packaging Specifications
www.DataSheet4U.com
Tape & Reel* ........................700 pcs./reel
*“E” suffix at end of part number
designates tape & reel packaging, e.g.
SM74139E.
Product Dimensions
12.82
(.505)
MAX.
7.11
(.280)
MAX.
16 9
SM74139
(DATECODE)
18
9.52
(.375)
MAX.
1.27
(.050)
TYP.
.457 ± .05
(.018 ± .002)
1.01
(.040)
(6.2.2425)MAX.
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ± 0.254
(.010)
Electrical Schematic
CORE A
1
16
2 15
3 14
CORE B
6 11
7 10
89
How to Order
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.


Features oH V SC AV ER OM AI SIO PL LA N IA BL S NT E Features ■ Surface mount Appli cations ■ Telecom SM 741 YYW W 39 * R ■ Dual transformer for transmit an d receive ■ 1500 VAC HIPOT ■ Lead f ree version available (see How to Orde r) ■ Lead free versions are RoHS comp liant* SM74139 - T1/CEPT/ISDN-PRI Dual Transformer Electrical Specifications @ 25 °C Primary Pins Core A .......... ..................................1-3 C ore B ................................. ...........6-8 Ratio (±2 %) Core A & B ......................1CT : 1.15CT OCL (mH) min. Core A & B ................. .....................1.2 Leakage Induct ance (µH) max. Core A & B ............ ........................0.60 Cww (pF) m ax. Core A & B ........................ ................30 DCR of primary (Ω) max. Core A & B ...................... ..............0.70 DCR of secondary ( ) max. Core A & B .................... ................0.75 Operating Temperat ure (°C) ........0 to +70 *CT : center tap 6.22 MAX. (.245) www.DataSheet4U.com P.
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