Features
■ Fully encapsulated
■ Low profi le
■ High dielectric strength
■ Ten models available
■ Ex stock
■ Competitively priced
■ RoHS compliant*
Applications
■ Line matching
■ Fax modem
LM-NP/-LP 1000 Series - Line Matching Transformers
Note
The LM-NP/-LP-1000 Series Line
Matching Transformers meet the return
loss specifi cations of BS 6305.
It is important, however, to use the
circuit recommended by BS 6305 for
return loss measurements.
The LM-NP-1000 Series are EN 41003
approved.
*RoHS COMPLIANT
How To Order
LM-xP-100x0xx L
Model
Termination
L = Tin only (RoHS Compliant)
DIMENSIONS: MM
(INCHES)
Product Dimensions
LM-NP-1001-B1
WHITE MARK
4321
5678
LM-NP SERIES
LM-LP SERIES
and LM-NP-1001-B1
*:pitch = 1/10 " = 2.54 (.100) (for number of pins see pin assignment)
17.7 + 0.2
(.700 + .008)
17.7 + 0.2
(.700 + .008)
DIA 0.6
(.023)
2.5
(.100)
2.5
(.100)
12.7 + 0.15
(.500 + .006)
3.0
(.118)
3.0
(.118)
5.04
(.200)
12.6 + 0.2
(.496 + .008)
10.5 + 0.2
(.413 + .008)
3.2 ± 0.8
(.126 ± .031)
5.04
(.200)
***
Pin Assignment and Winding Confi gurations (Bottom View)
LM-NP-1001-B1L
LM-LP-1001L
LM-NP-1002L
LM-LP-1002L
LM-NP-1003L
LM-LP-1003L
LM-NP-1004L
LM-LP-1004L
LM-NP-1005L
LM-LP-1005L
one-winding
center-tapped*
one winding
split*
both windings
center-tapped
both windings
split
* Due to the unique design and the most advanced manufacturing techniques the 2 coils are fully identical, meaning there is no real
primary nor secondary winding. Depending on the application, the transformers can be used either way.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including Annex.
Specifications are subject to change without notice. Users should verify actual device performance in their
specific applications. The products described herein and this document are subject to specific legal disclaimers
as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
LM-NP/-LP 1000 Series - Line Matching Transformers
REV. 05/11
Part Numbers And Specifi cations
tinUsretemaraP LM-NP
1001-B1L
LM-NP
1002L
LM-NP
1003L
LM-NP
1004L
LM-NP
1005L
LM-LP
1001L
LM-LP
1002L
LM-LP
1003L
LM-LP
1004L
LM-LP
1005L
Ref. Temperature Data °C 25 25 25 25 25 25 25 25 25 25
Impedance
(min./at 1.0 kHz)
Primary Ω600 600 600 600
(150, 150)
600
(150+150)
600 600 600 600
(150, 150)
600
(150+150)
Secondary Ω600 600
(150,150)
600
(150+150)
600
(150,150)
600
(150+150)
600 600
(150,150)
600
(150+150)
600
(150,150)
600
(150+150)
Inductance
(min./at 0.2 kHz)
Primary H 2.8 2.8 2.8 2.8
(0.7, 0.7)
2.8
(0.7+0.7)
2.8 2.8 2.8 2.8
(0.7, 0.7)
2.8
(0.7+0.7)
Secondary H 2.8 2.8
(0.7, 0.7)
2.8
(0.7+0.7)
2.8
(0.7, 0.7)
2.8
(0.7+0.7)
2.8 2.8
(0.7, 0.7)
2.8
(0.7+0.7)
2.8
(0.7, 0.7)
2.8
(0.7+0.7)
DC-Resistance
(typical/±10 %)
Primary Ω66 66 66 66
(33,33)
66
(33+33)
90 90 90 90
(45,45)
90
(45+45)
Secondary Ω66 66
(33,33)
66
(33+33)
66
(33,33)
66
(33+33)
90 90
(45,45)
90
(45+45)
90
(45,45)
90
(45+45)
Turns Ratio (≤ ±2 %) — 1:1 1:1 1:1 1:1 1:1 1:1 1:1 1:1 1:1 1:1
Winding Confi gurations — — one
winding
center
tapped
one
winding
split
both
windings
center
tapped
both
windings
split
—one
winding
center
tapped
one
winding
split
both
windings
center
tapped
both
windings
split
Insertion Loss (at 2.0 kHz) dB ≤ 1.5 ≤ 2.0
Return Loss Transformer
(0.2 - 4.0 kHz)
In Networks
dB ≥ 10.0
≥ 21.0
≥ 8.0
≥ 20.0
Shunt Loss (typical) kΩ0.90.9
Frequency Response
(typ./0.2 - 3.5 kHz)
5.0 -3.0 -Bd
Wide Band Response
(0.2 - 10.0 kHz)
5.4-5.2-Bd
0.3 + ot 0.34 -0.3 + ot 0.54 -mBdleveL rewoP
Longitudinal Balance
(0.3 - 4.0 kHz)
0.07 -0.08-Bd
Distortion (0 dB/at 1.0 kHz) % ≤ 0.1 ≤ 0.25
0.410.41H
m)lacipyt( noitcudnI egakaeL
5.65.6CDVk )S/P( htgnertS cirtceleiD
Temperature
Range
06+ ot 01-06+ ot 01-C°noitarepO
07+ ot 02-07+ ot 02-C°egarotS
Specifi cations Met BS 6204: Construction and fl ammability (UL 94V0) CCITT: Rec. T/CD 1-1 (Sept. 1982)
BS 6301: Isolation
BS 6305: Return loss (1982/paragraph 4.3.2.2/b)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
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