Product Overview
Pulse Electronics T1/E1/CEPT/ISDN-PRI Transformers are designed for quad port T1/E1 applications, featuring 8 transformers with 1500 Vrms isolation. These transformers are matched to leading quad and dual T1/E1/CEPT/ISDN-PRI transceivers, offering excellent crosstalk attenuation of -65 dB or better. They are RoHS compliant and UL1950 recognized (some parts pending approval), making them suitable for various telecommunications interfaces requiring compliance with standards like ITU-T G.703. The product line also includes high-frequency common mode chokes for EMI compliance.
Product Attributes
- Brand: Pulse Electronics
- Certifications: UL1950 recognized (some parts pending approval)
- Compliance: RoHS compliant, RoHS compliant versions available upon request
- Application Standards: ITU-T G.703, FCC part 68, IEC 695-2-2
Technical Specifications
| Part Number | Package/Schematic | Std Temp | Ex Temp | TX RX Turns Ratio (Pri:Sec) | TX RX Turns Ratio (Pri:Sec CT) | OCL @ 25C (mH MIN) | L (H MAX) | ww (pF MAX) | Weight (grams) | Tape & Reel (per reel) | Tray (per tray/tube) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T1064NL | TOU/1 | 0C to 70C | -40C to +85C | 1:1.14 | 1:1.14CT | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1065NL | TOU/3 | 0C to 70C | -40C to +85C | 1:2CT | 1:2CT | 1.2 | .8 | 35 | 3.8 | 175 | 105 |
| T1105NL | TOU/3 | 0C to 70C | -40C to +85C | 1:2CT | 1:2CT | 1.2 | .8 | 35 | 3.8 | 175 | 105 |
| T1068NL | TOU/2 | 0C to 70C | -40C to +85C | 1:2CT | 1:1CT | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1108NL | TOU/2 | 0C to 70C | -40C to +85C | 1:2CT | 1:1CT | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1071NL | TOU/2 | 0C to 70C | -40C to +85C | 1:1/1.26 | 1:2CT | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1073NL | TOU/4 | 0C to 70C | -40C to +85C | 1:2 | 1:2 | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1124NL | TOU/3 | 0C to 70C | -40C to +85C | 1:2CT | 1CT:2 | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1114NL | TOU/3 | 0C to 70C | -40C to +85C | 1:2CT | 1CT:2 | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T1142NL | TOU/5 | 0C to 70C | -40C to +85C | 1:2.4 | 1:1 | 1.0 | .5 | 35 | 3.8 | 175 | 105 |
| T1231NL | TOU/5 | 0C to 70C | -40C to +85C | 1:2.4 | 1:1 | 1.0 | .5 | 35 | 3.8 | 175 | 105 |
| T1145NL | TOU/6 | 0C to 70C | -40C to +85C | 1:2/2.4 | 1:0.79/1 | 1.0 | 1.0 | 35 | 3.8 | 175 | 105 |
| TX1262NL | TOU/5 | 0C to 70C | -40C to +85C | 1:2 | 1:2 | 1.2 | .7 | 35 | 3.8 | 175 | 105 |
| TX1264NL | TOU/3 | 0C to 70C | -40C to +85C | 1:2CT | 1CT:1 | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| TX1266NL | TOU/4 | 0C to 70C | -40C to +85C | 1:2 | 1:1 | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| TX1295NL | TOU/3 | 0C to 70C | -40C to +85C | 1:1.26CT | 1:1.26CT | 1.2 | .6 | 35 | 3.8 | 175 | 105 |
| T8008NL* | TOU/2 (Surface Mount) | N/A | N/A | 1:1 (8 places) | N/A | 47.0 | .18 | 25 | 2.0 | 1500 | 25 |
| PE-65554NL | IN/1 (Through Hole) | N/A | N/A | 1:1:1:1 | N/A | 24.0 | .20 | 15 | 2.5 | 250 | 30 |
| PE-65555NL | IN/1 (Through Hole) | N/A | N/A | 1:1:1:1 | N/A | 8.0 | .20 | 10 | 2.5 | 250 | 30 |
| PE-65854NL | SH/1 (Surface Mount) | N/A | N/A | 1:1:1:1 | N/A | 47.0 | .20 | 16 | 2.0 | 1500 | 35 |
| PE-65857NL | LA/1 (Surface Mount) | N/A | N/A | 1:1:1:1 | N/A | 24.0 | .23 | 15 | 2.0 | 1500 | 35 |
General Specifications:
- Isolation Voltage: 1500 Vrms peak
- Peak Reflow Temperature Rating: 245C
- Crosstalk Attenuation: -65 dB or better
- Common Mode Rejection Ratio (CMRR): Better than 50dB at 1MHz
- ET Product: 10 V-sec minimum
- Flammability: Materials recognized as UL94-VO approved; meet IEC 695-2-2 requirements
- Balance Characteristics: Meet longitudinal balance requirements of FCC part 68
- Return Loss: Complies with ITU-T G.703 and European national regulatory documents
- Surge Voltage Capability: Metallic Voltage: 800 V peak, 10/560sec; Longitudinal Voltage: 2,400 V peak, 10/700sec
- 100% tested for isolation voltage.
2411272255_PULSE-T1124NL_C7394679.pdf
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