DIP & SMD PACKAGE TOKEN RING TRANSFORMERS
FEATURES
Ê UTP / STP, 4 & 16mbt Applications
Í Fast Rise Times on All Units
Ë Low Insertion Loss (1-32MHz)
Ì Excellent CMMR of -60db Min. @ 1MHz
Î 2000Vrms Minimum Isolation Voltage
Ï Single or Dual Core DIP/SMD Packages
ELECTRICAL SPECIFICATIONS AT 25OC PER CORE
TURNS
RATIO
(±5%)
PRIMARY
OCL
(µH Typ.)
RISE
TIME
(ns Max.)
PRI-SEC
Cw/w
(pf Max.)
PRI / SEC
LL
(µH Max.)
Package
&
Schematic
DCR
(Ohms Max.)
PART
NUMBER
HIPOT
(Vrms Min)
Pri
Sec
PM-TRA20
PM-TRA21
PM-TRA22
1:1:2:2
1:1:1:1
1:1:1:1
125
125
1000
10.0
10.0
10.0
10.0
10.0
15.0
.10
.10
.25
2000
2000
2000
.4
.4
.8
.4
A
A
A
1.0 1.0
PM-TRX26
PM-TRX27
PM-TRX28
1:1:2:2
1:1:1:1
1:1:1:1
125
125
1000
10.0
10.0
10.0
10.0
10.0
15.0
.10
.10
.25
2000
2000
2000
.4
.4
.8
.4
B & G
B & G
B & G
1.0 1.0
INSERTION LOSS:
RETURN LOSS:
Fill in X with desired package:
B = 16-Pin Through Hole DIP
G = 16-Pin Gull-Wing SMD
0.9 - 40MHz: 1.0dB Max.
1.4 - 31MHz: 0.40dB Max.
2.2 - 20MHz: 0.20dB Max.
1 - 8MHz: 22dB Min.
8 - 16MHz: 20dB Min.
16 - 24MHz: 18dB Min.
DUAL CORE PACKAGE "B" (PM-TRBXX) 16-PIN THROUGH HOLE DIP
.280
(7.11)
MAX
.880
(22.35)
MAX
SECONDARY
15 14 13
SECONDARY
12 11 10
PIN#1
DOT
16
9
.210
(5.33)
MAX
.008R
(0.20)
.120
(3.05)
MIN
.020 (.51)
.010 (.25)
.010
(0.25)
1
2
3
4
5
6
7
8
(7.62)
.050
(1.27)
TYP
.020
(0.51)
TYP
PRIMARY
PRIMARY
.100
(2.54)
TYP
.340
(8.64)
DUAL CORE PACKAGE "G" (PM-TRGXX) 16-PIN GULL-WING SURFACE MOUNT
.500
(12.70)
MAX
.280
(7.11)
MAX
SECONDARY
SECONDARY
PIN#1
DOT
16
15 14 13
12 11 10
9
o
3
TYP
.210
(5.33)
MAX
o
15 TYP
.010
(0.25)
TYP
.050
(1.27)
TYP
.010 (.25)
.004 (.10)
.019
(0.48)
TYP
.020 (0.51) MIN.
.370 (9.40)
1
2
3
4
5
6
7
8
PRIMARY
PRIMARY
SINGLE CORE PACKAGE "A" (PM-TRAXX) 8-PIN THROUGH HOLE DIP
.280
.500
(12.70)
MAX
SECONDARY
6
5
(7.11)
MAX
PIN#1
DOT
8
7
.210
(5.33)
MAX
.008R
(0.20)
.120
(3.05)
MIN
.020 (.51)
.010 (.25)
.010
(0.25)
.300
(7.62)
.100
(2.54)
TYP
.050
(1.27)
TYP
1
2
3
4
.340
(8.64)
.020
(0.51)
TYP
PRIMARY
Specifications subject to change without notice.
27111AlisoCreekRoad, Suite175
AlisoViejo,California92656
Phone: (714)362-4211
Premier
Magnetics Inc.
P
21
M
Fax:
(714)362-4212
PMI [ PREMIER MAGNETICS, INC. ]
