PE-64937 PULSE ELECTRONICS CORPORATION, PE-64937 Datasheet - Page 7

• Manufacturer Part Number: PE-64937
• Manufacturer: PULSE ELECTRONICS CORPORATION

Specifications of PE-64937

• Operating Temp Range: 0C to 70C
• Package Type: DIP
• Mounting: Through Hole
• Pin Count: 6
• Interwinding Capacitance Max: 35pF
• Isolation Voltage (max): 1500VrmsV
• Lead Style: PC Pin
• Ocl Inductance (max): 1.2(Min)mH
• Operating Temperature Max Deg. C: 70C
• Operating Temperature Min Deg. C: 0C
• Primary Leakage Inductance (max): 0.8uH
• Product Depth (mm): 8.89mm
• Product Height (mm): 6.35mm
• Product Length (mm): 12.7mm
• Return Loss (min): 9/12dB
• Turns Ratio: 1:1.36
• Lead Free Status / RoHS Status: Not Compliant

T1/CEPT/ISDN-PRI TRANSFORMERS
Application Notes
1. Extended Temperature Range Models — For extended temperature range
2. ET Product — All coils have an ET product of 10 V-µsec minimum.
3. Flammability — Materials used in the products are recognized
4. Balance Characteristics — The transformers meet the requirements for lon-
5. Common Mode Rejection Ratio — the CMRR for all transformers is better
6. Crosstalk Attenuation — In the dual packages, which contain transmit and
7. Return Loss — ITU-T G.703 and European national regulatory documents
NOTES FROM TABLES (pages 1 through 6):
A. Toleranced leakage inductance: .30µH min to .55µH MAX.
B. OCL (primary inductance) and L L (leakage inductance) are
C. To make a 1CT:1 ratio from a 1CT:2CT ratio, use only one
D. For Reinforced 3kVrms Dual SMT Transformers, refer to
E. Dual Ratio Transformers — These transformers have
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Frequency
measured at the primary winding. Turns ratio is specified
primary: secondary. (CT = Center Tap; CS = Split Center
Tap).
half of the secondary (2CT) winding.
data sheet T617. For Quad SMT Transformers refer to data
sheet T615. For Octal SMT Transformers refer to data
sheet T622.
tapped secondary windings to provide two turns ratios
(T/R). Use the entire primary winding and connect the sec-
ondary pins listed below to obtain the desired turns ratio:
transformers (-40°C to +85°C operating temperature range), OCL (Open
Circuit Inductance for the primary winding) is specified at both -40°C and
+25°C. At -40°C, OCL is 600 µH minimum for all low temperature models with
the exception of PE-68827 which is 800 µH minimum and PE-65836 which is
300 µH minimum. All other parameters are specified at +25°C only. Standard
temperature range is 0°C to +70°C.
as UL94-VO approved. Products meet the requirements of IEC 695-2-2
(Needle Flame Test).
gitudinal balance of FCC part 68.
than 50 dB at 1 MHz. A typical test circuit is shown below.
receive transformers side by side, sufficient crosstalk attenuation is achieved
by the inherent characteristics of the toroid cores as well as by their proper
positioning. The crosstalk attenuation is typically50 dB or better from 100kHz
to 10MHz. This result was established with the test circuit shown below.
specify minimum return loss levels. The transformers will allow these limits to
be complied within the situations where they are applicable.
USA 858 674 8100
Return Loss
XMIT
REC
P1 P2
HP-8751A
P1 P2
HP-8751A
50-100kHz
• •
12 dB
9 dB
Germany 49 7032 7806 0
BALUN
50:100
BALUN
50:100
100
100kHz-2 MHz
15dB
18dB
XFMR
XFMR
• •
Singapore 65 6287 8998
F. Standard packaging for surface mount “AN” and “LA” pack-
BALUN
100:50
ages is anti-static tubes. Optional Tape & Reel packaging
can be ordered by adding “T” suffix to the part number,
(i.e. PE-65857T).
100
BALUN
100:50
Part
Number
PE-65837
PE-65839
PE-65866
PE-68646
PE-65389
PE-65566
PE-65568
PE-68866
PE-68826
PE-68664
PE-68836
2-3MHz
11dB
14dB
Ratio 1
Turns Secondary Turns Secondary
1:1.08
1:1.58
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
2-3/5-6
Pins
3-5
3-5
2-3
3-5
3-5
2-3
2-3
2-3
2-3
3-5
7
• •
Shanghai
8. Surge Voltage Capability – All transformers and chokes meet surge voltage
9. Isolation Voltage — 100% of transformers are tested during
10. Safety Agency Recognition — Parts listed as "Recognized" or "Certified"
11. General Information — The transformers are specifically designed for use
12. Common Mode Chokes — The “high-frequency” 4-lines common mode
RCVE
tests according to the most stringent regulatory documents when system
designs include the proper voltage and current suppression devices:
XMiT
Code
IC
production to the specified isolation voltage level.
meet Underwriter Laboratories, UL 1459 and UL 1950 per file E133523 (S).
Ratio 2
in 1.544 Mbps (T1), 2.048 Mbps (CEPT) and ISDN Primary rate (PRI)
interface applications. They are matched to the majority of the line interface
transceiver ICs currently available. Use of the proper transformer allows the
interface circuit to comply with ITU-T G.703 and other standards regarding
pulse waveform, return loss, and balance.
chokes shown in this data sheet provide an effective means of compliance with
national and international regulations on EMI. They are designed to be used in
conjunction with Pulse’s T1/CEPT transformers as shown in the typical
application below. Crosstalk is typically -70dB at 1MHz and -55dB at 10MHz.
Transformers with Reinforced Insulation according to IEC950 series
PE-68630—PE-68788 (pg. 3) are certified by the following organizations:
1:1.36
1:1.26
1:1.26
1:1.26
1:1.26
1:1.26
1:1.26
1:1.26
1:1.26
1:1.26
T
U
1:2
Metallic Voltage:
Longitudinal Voltage:
86 21 32181071
Transformer
Certificate Information
TÜV, EN 60 950/EN 41003, Cert. R9371358, reinforced insulation.
UL 1459/UL1950, File E133523 (S), reinforced insulation.
1
1
1
1
1
1
1
1
1
1
1-3/4-6
Pins
-
-
-
-
-
-
-
-
-
-
5
5
3
5
5
3
3
3
3
5
Typical Application
Choke
• •
G. PE-68618 and PE-64950: The fault locate winding is (7-8).
H. Safety Agency approvals pending.
I. The turns ratio of these devices have been designed, in
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conjunction with semiconductor vendor recommendations,
to allow connections to various terminations (e.g. 75 or
120Ω with the same transformer). For example T1075 can
be used with the Siemens PEB 2235 to achieve connection
to the 75 or 120Ω cable. For 75 Ω termination, the PEB
2235 requires the following turns ratio: 1:1.57 (Tx) and
1:1.26 (Rx) which can be achieved using pins (1-2):(15-16)
for Tx and (10-11):(5-8) for Rx. For 120Ω, the following
turns ratio are required: 1:2 (Tx) and 1:1 (Rx), which are
pins (1-2):(16-14) for Tx and (9-11):(5-8) for Rx on the
T1075.
800V peak, 10/560µsec
2,400V peak, 10/700µsec
Choke
• •
Taiwan 886 3 4643715
Transformer
T608.S (4/08)
RCVE
XMIT
IC