# PCB Transformer, High Isolation, 100kHz, Dual Primary, Dual Secondary
**URL**: https://novapart.co/products/PH9185.034NL/pcb-transformer-high-isolation-100khz-dual-primary
**SKU**: PH9185.034NL
**Manufacturer**: PULSE ELECTRONICS
**Category**: Transformers || PCB Transformers
**Price**: €1.8500
**Stock**: 500+
**Lead Time**: 85 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Power Rating | - |
| Winding Type | Dual Primary, Dual Secondary |
| Product Range | PH9185.XXXNL Series |
| Current Rating | - |
| Frequency Range | 100kHz |
| Primary Voltages | - |
| Isolation Voltage | 5kV |
| Secondary Voltages | - |
| Pcb Transformer Type | High Isolation |
| Transformer Mounting | Surface Mount |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3861204/)
High Isolation Power Transformers _EP7 Platform SMD - PH9185.XXXNL and PM2190.XXXNL_
- _Push Pull Transformer_
- _Reinforced insulation for isolated power supply driver_
- _8mm creepage and clearance_
- _5KVrms isolation (Up to 1000Vpk rated voltage)_[6] _UL and TUV certified_
|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part Number
Inductance (1-3)
(µH ±45%)
Leakage Inductance
(µH MAX)
DCR (1-3)
(ΩMAX)
DCR (4-6)
(ΩMAX)
ET MAX (1-3)1
(V-µsec MAX)
CAP
(pF MAX)
Turns Ratio
(1:3) (6:4)
Isolated Voltage4
(Vrms)
Commercial
Automotive|
|---|---|---|---|---|---|---|---|
|Commercial|Inductance (1-3)
Automotive|||||||
|PH9185.011NL|PM2190.011NL|750|1.2
0.50
0.55|66|10.0|1CT : 1CT|5000|
|PH9185.012NL|PM2190.012NL|450|0.9
0.40
0.80|52|10.0|1CT : 2CT||
|PH9185.013NL|PM2190.013NL|200|0.6
0.35
0.95|36|8.0|1CT : 3CT||
|PH9185.021NL|PM2190.021NL|1800|3.0
0.75
0.45|100|10.0|2CT : 1CT||
|PH9185.034NL|PM2190.034NL|750|1.2
0.50
0.75|66|10.0|3CT : 4CT||
|PH9185.038NL|PM2190.038NL|310|0.9
0.44
1.00|44|8.0|3CT : 8CT||
|PH9185.043NL|PM2190.043NL|1260|1.5
0.70
0.56|89|12.0|4CT : 3CT||
|PH9185.083NL|PM2190.083NL|2350|6.0
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) = 8.73-11 * (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 flex swing
- C. To calculate temperature rise, use the following formula: Temperature Rise (°C) = 140 * (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. Creepage and clearance is in accordance with IEC 61558-1 and IEC61558-2-16 for reinforced insulation to a working voltage of 400Vrms (for basic insulation to a working voltage of 800Vrms) based on material group III, pollution degree 2, OVC II and 5000m altitude.The PM2190.XXXNL part numbers are AEC-Q200 and IATF16949 certified.
6. Rated voltage is based on a positive partial discharge test (discharge < 10pC) for the profile shown in page 3, in accordance with IEC60664 for basic insulation. In an application which requires a reinforced insulation barrier, a rated voltage of 880Vpk is defined and confirmed by partial discharge testing. Ww)
## **Mechanical**
## **Schematic**
## **PH9185.XXXNL/PM2190.XXXNL**
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**----- Start of picture text -----**
Weight ...................2.6grams
Tape & Reel ...............150/reel
Tray .............................80/tray
Inches
Dimensions: — mm
Unless otherwise specified,
all tolerances are ± — .010
0,25
**----- End of picture text -----**
1 rT
P708.S (07/24)
High Isolation Power Transformers
_EP7 Platform SMD - PH9185.XXXNL and PM2190.XXXNL_
**==> picture [110 x 53] intentionally omitted <==**
## **TAPE & REEL INFO**
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**==> picture [63 x 81] intentionally omitted <==**
|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|SURFACE MOUNTING TYPE, REEL/TAPE LIST|
|---|---|---|---|---|---|---|
|PART NUMBER|REEL SIZE (mm)||TAPE SIZE (mm)|||QTY|
||A|G|P1|W|K0|PCS/REEL|
|PH9185.XXXNLT/PM2190.XXXNLT|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 125] intentionally omitted <==**
**----- Start of picture text -----**
VIN
VCC PH9185/PM2190
D1
V OUT
DRIVER
IC
D2
GND
**----- End of picture text -----**
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 certification but is compliant with the standard. The technically identical PM2190.013NL is listed, if a UL certified product is required for this turns ratio.
P708.S (07/24)
2
## High Isolation Power Transformers
_EP7 Platform SMD - PH9185.XXXNL and PM2190.XXXNL_
**==> picture [542 x 564] intentionally omitted <==**
**----- Start of picture text -----**
Test Procedure Setting Basic Insulation - Partaial Discharge Test Passed
PD - MV no.2
U inc.: U ext.: Limit: Range:
yes yes 10 pC AUTO
Limit OFF
Volatge U1: 1.50kV U1 = Urp * 1.5 = 1500V
Speed v2
0.14 kV/s
Limit 10.00pC
Volatge U2: 1.20 kV
Speed v1 Speed v3
0.14 kV/s 0.14 kV/s
Urp = 1000V
Meas. time: Waiting. time: Meas. time:
5 s 5 s 10 s
Test Procedure Setting Reinforced Insulation - Partaial Discharge Test Passed
PD - MV no.2
U inc.: U ext.: Limit: Range:
yes yes 10 pC AUTO
Limit OFF
Volatge U1: 1.65kV U1 = Urp * 1.875 = 1650V
Speed v2
0.14 kV/s
Limit 10.00pC
Volatge U2: 1.32 kV
Speed v1 Speed v3
0.14 kV/s 0.14 kV/s
Urp = 880V Meas. time: Waiting. time: Meas. time:
5 s 5 s 10 s
**----- End of picture text -----**
## For More Information:
**Americas -** prodinfo_power_americas@yageo.com | **Europe -** prodinfo_power_emea@yageo.com | **Asia -** prodinfo_power_asia@yageo.com
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, 2023. Pulse Electronics, Inc. All rights reserved.
YAGEO Corporation and its affiliates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space flight.
**==> picture [82 x 40] intentionally omitted <==**
P708.S (07/24)
PulseElectronics.com
3
## Links
- [View this product on Novapart](https://novapart.co/products/PH9185.034NL/pcb-transformer-high-isolation-100khz-dual-primary)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/pulse-electronics/ph9185-034nl/xfmr-100khz-5kv-smd/dp/3861204)
---
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