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PH9185.011NLT
XFMR,PWR,.750 UH,EP7,SM NPB 51AK3218
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: PULSE ELECTRONICS
- Product type: PCB Transformers
- SVHC: No SVHC (04-Feb-2026)
- Power Rating: -
- Winding Type: Dual Primary, Dual Secondary
- Product Range: PTPC
- Current Rating: -
- Frequency Range: -
- Primary Voltages: -
- Isolation Voltage: 5kVrms
- Secondary Voltages: -
- PCB Transformer Type: High Isolation
- Transformer Mounting: Surface Mount
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 2.48 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
High Isolation Power Transformers _EP7 Platform SMD - PH9185.XXXNL and PM2190.XXXNL_ - _Push Pull Transformer_ - _Reinforced insulation for isolated power supply driver_ - _8mm creepage_ - _5KVrms isolation (1000Vrms continuous)_[7] _UL and TUV certified_ |Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>Part Number<br>Inductance (1-3)<br>(µH ±45%)<br>Leakage Inductance<br>(µH MAX)<br>DCR (1-3)<br>(ΩMAX)<br>DCR (4-6)<br>(ΩMAX)<br>ET MAX (1-3)1<br>(V-µsec MAX)<br>CAP<br>(pF MAX)<br>Turns Ratio<br>(1:3) (6:4)<br>Isolated Voltage4<br>(Vrms)<br>Commercial<br>Automotive8| |---|---|---|---|---|---|---|---| |Commercial|||||||| |PH9185.011NL|PM2190.011NL<br>750|750<br>1.2<br>0.50|0.55|66|10.0|1CT : 1CT|5000| |PH9185.012NL|PM2190.012NL<br>450|450<br>0.9<br>0.40|0.80|52|10.0|1CT : 2CT|| |PH9185.013NL|PM2190.013NL<br>200|200<br>0.6<br>0.35|0.95|36|8.0|1CT : 3CT|| |PH9185.021NL|PM2190.021NL<br>1800|1800<br>3.0<br>0.75|0.45|100|10.0|2CT : 1CT|| |PH9185.034NL|PM2190.034NL<br>750|750<br>1.2<br>0.50|0.75|66|10.0|3CT : 4CT|| |PH9185.038NL|PM2190.038NL<br>310|310<br>0.9<br>0.44|1.00|44|8.0|3CT : 8CT|| |PH9185.043NL|PM2190.043NL<br>1260|1260<br>1.5<br>0.70|0.56|89|12.0|4CT : 3CT|| |PH9185.083NL|PM2190.083NL<br>2350|2350<br>6.0<br>0.90|0.40|110|8.0|8CT : 3CT|| **Notes:** 1. The ET Max is calculated to limit the core loss and temperature rise at 100KHz based on a bipolar flux swing of 180mT Peak. 2. For Push-Pull topology, where the voltage is applied across half the primary winding turns, the ET needs to be derated by 50% for the same flux swing. 3. The applied ET may need to be further derated for higher frequencies based on the temperature rise which results from the core and copper losses - A. To calculate total copper loss (W), use the following formula: - Copper Loss (W) = Irms_Primary[2] * DCR_Primary + Irms_Secondary[2] *DCR_Secondary - B. To calculate total core loss (W), use the following formula: - Core Loss (W) = 4.40E-10 * (Frequency in kHz)[1.67] * (180 * [ET/ET Max])[2.53] Where ET is the applied Volt Second, ET Max is the rated Volt Second for 180mT flux swing - C. To calculate temperature rise, use the following formula: Temperature Rise (°C) = 90 * (Core Loss(W) + Copper Loss (W)) 4. The AEC-Q200 temperature and humidity operational life testing was completed using a dielectric strength test of 5000Vdc. 5. Optional Tape & Reel packing can be ordered by adding a “ **T** ” suffix to the part number (i.e. PH9185.012NL becomes PH9185.012NL **T** ). Pulse complies to industry standard tape and reel specification EIA481. 6. The “NL” suffix indicates an RoHS-compliant part number. 7. Continuous isolation voltage confirmed by 125°C/1000hrs accelerated aging with the bias voltage applied between primary and secondary windings. 8. The PM2190.XXXNL part numbers are AEC-Q200 and IATF16949 certified. 9. Special Characteristics ## **Mechanical** ## **Schematic** **PH9185.XXXNL/PM2190.XXXNL** ~~[~~ **==> picture [90 x 100] intentionally omitted <==** **----- Start of picture text -----**<br> Weight ...................2.6grams<br>Tape & Reel ...............150/reel<br>Tray .............................80/tray<br>Inches<br>Dimensions: — mm<br>Unless otherwise specified,<br>all tolerances are ± .010<br>0,25<br>**----- End of picture text -----**<br> P708. O (02/20) http://www.power.pulseelectronics.com/contact power.pulseelectronics.com 1 ## High Isolation Power Transformers _EP7 Platform SMD - PH9185.XXXNL and PM2190.XXXNL_ **==> picture [70 x 31] intentionally omitted <==** |**TAPE & REEL INFO**|**TAPE & REEL INFO**|**TAPE & REEL INFO**|||||||||||||||| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| ||K0||||||||W<br>|||A|||||| |||||||Marking|Marking||||||||||| ||||||||||||||||||| |||||||Marking|||||||||||| |||||||||||||||||G|| ||||||||||||||||||| |||||||P<br>1|||||||||||| ||||||||||||||||||| ||||||||||Direction of tape||||||||| ||||||||SURFACE MOUNTING TYPE, REEL/TAPE LIST||||||||||| ||||||PART NUMBER<br>PH9185.XXXNLT/PM2190.XXXNLT|PART NUMBER||REEL SIZE (mm)|||TAPE SIZE (mm)|||QTY|||| |||||||||A||G|P1|W|K0|PCS/REEL|||| |||||||||Ø330||32.4|24|32|12.8|150|||| ## **APPLICATION** PH9185.XXXNL is a series of high isolation power supply transformer drivers. Intended to operate in a fixed duty cycle Push Pull topology, it is a part of a low cost solution for delivering lower power (up to 3W) from a low voltage source. A typical implementation would be an isolated RS-485/RS-232 power supply driver circuit, the design is compatible with the MAXIM™ MAX253 IC. A schematic diagram for the Push Pull converter topology is given below. **==> picture [152 x 124] intentionally omitted <==** **----- Start of picture text -----**<br> VIN<br>VCC PH9185/PM2190<br>D1<br>V OUT<br>DRIVER<br>IC<br>D2<br>GND<br>**----- End of picture text -----**<br> For a fixed 50% duty cycle mode of operation, the output voltage is simply determined by the input voltage and turns ratio. So, with the available turns ratios, a variety of output voltages can be selected. This transformer design has been certified by UL to comply with UL60950-1 2[nd] edition, and CAN/CSA C22.2 NO. 60950-1-07 2[nd] edition; and by TUV to comply with EN61558-1 and EN61558-2-16 with reinforced insulation for a working voltage up to 400Vac 8mm creepage and 5000Vrms isolation voltage is guaranteed to meet this requirement. The design also complies with the Pulse’s class F insulation system. PH9185.013NL was not included in the original UL/TUV certification but is complaint. Cost reduced versions without UL/TUV certification available, please contact Pulse Electronics for more information. MAXIM is a registered trademark of Maxim Integrated Products. ## For More Information |**Pulse Worldwide**|**Pulse Europe**|**Pulse China Headquarters**|**Pulse North China**|**Pulse South Asia**|**Pulse North Asia**| |---|---|---|---|---|---| |**Headquarters**|Pulse Electronics GmbH|Pulse Electronics (ShenZhen) CO., LTD|Room 2704/2705|3 Fraser Street|1F., No.111 Xiyuan Rd| |15255 Innovation Drive Ste 100|Am Rottland 12|D708, Shenzhen Academy of|Super Ocean Finance Ctr.|0428 DUO Tower|Zhongli City| |San Diego, CA 92128|58540 Meinerzhagen|Aerospace Technology,|2067 Yan An Road West|Singapore 189352|Taoyuan City 32057| |U.S.A.|Germany|The 10th Keji South Road,|Shanghai 200336||Taiwan (R.O.C)| |||Nanshan District, Shenzhen,|China||| |||P.R. China 518057|||| |Tel: 858 674 8100|Tel: 49 2354 777 100|Tel: 86 755 33966678|Tel: 86 21 62787060|Tel: 65 6287 8998|Tel: 886 3 4356768| |Fax: 858 674 8262|Fax: 49 2354 777 168|Fax: 86 755 33966700|Fax: 86 2162786973|Fax: 65 6280 0080|Fax: 886 3 4356820| Performance warranty of products offered 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, 2020. Pulse Electronics, Inc. All rights reserved. P708. O (02/20) http://www.power.pulseelectronics.com/contact power.pulseelectronics.com 2
Updated at April 22, 2026
Pulse Electronics, a YAGEO company, is a global leader in the design and manufacturing of passive electronic components. With a legacy of innovation dating back to 1956, the company provides essential technology for the communications, computing, industrial, transportation, and IoT sectors. Pulse is recognized worldwide for delivering high-performance solutions that power advanced applications, ranging from 5G networks and electric vehicles to data centers and smart grids. The company's extensive product portfolio is heavily anchored in power and networking magnetics. This includes a comprehensive range of power inductors engineered for exceptional efficiency and reliability in demanding environments. To address complex electromagnetic compatibility challenges, Pulse also manufactures highly effective EMC and RFI suppression solutions, such as common mode chokes and filters, alongside specialized toroidal and RF inductors designed to ensure clean power delivery and optimal signal integrity. Beyond traditional magnetics, Pulse excels in the development of advanced wireless and power conversion components. Their connectivity solutions feature a wide array of high-performance RF antennas and single-band chip antennas tailored for modern connected devices. Furthermore, to support sophisticated power architectures, Pulse provides a broad spectrum of transformers—encompassing PCB-mounted designs, current sensing transformers, and precise pulse transformers—equipping engineers with robust, industry-proven components for power isolation and measurement.
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