P723.A (06/13)1
pulseelectronics.com
Switch Mode Transformers
Toroid Platform SMD
Push Pull Converter Transformer
Compatible with MAXIM™ MAX253 to isolate RS-485/RS232
and other industrial bus transceivers
Compact and cost effective industrial design
Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part
Number
Inductance
(1-3)
(mH ±35%)
DCR (1-3)
(Ω MAX)
MAX (1-3)
(V-µsec)
Turns
Ratio
Isolated Voltage
(Vrms)
PFX0890NL 1.02 0.60 18.4 3:4 2000
Notes:
1. The maximum volt-usec rating limits the peak flux density to 3600 gauss when used in
bi-polar drive application with 200KHz. For unipolar drive applications or a bi-polar drive
with 350kHz, a maximum volt-usec could be 60% of the listed value.
2. Optional Tape & Reel packing can be ordered by adding a “T” sux to the part number
Pulse complies to industry standard tape and reel specification EIA481.
3. Other turns rations available on request.
PFX0890NL
Mechanical Schematic
1
2, 3
12
6.4
1.80
3
2
16
5
4
DATE CODE CoO
PFX0890NL
PULSE
0.50 ±0.10
d 0.10
9.50 MAX
(8.30)
6 SURFACES
8.10 MAX 5.08
2.54
7.10 MAX
5.08 MAX
Weight ...........................0.365grams
Tape & Reel ........................700/reel
Tray ......................................55/tray
Dimensions:
Unless otherwise specified,
all tolerances are ±
Inches
mm
.010
0,25
For More Information
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Einsteinstrasse 1
D-71083 Herrenberg
Germany
Tel: 49 7032 78060
Fax: 49 7032 7806 135
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Road
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Road
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
3F, No. 198
Zhongyuan Road
Zhongli City
Taoyuan County 320
Taiwan R. O. C.
Tel: 886 3 4356768
Fax: 886 3 4356823 (Pulse)
Fax: 886 3 4356820 (FRE)
Performance warranty of products oered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2013. Pulse Electronics, Inc. All rights reserved.
