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TPI 125-115A-J
AC/DC Open Frame Power Supply (PSU), 120 to 370VDC, ITE, 1 Output, 125W @ 400LFM, 85V AC to 264V AC
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: TRACO POWER
- Product type: AC / DC Open Frame Power Supplies
- SVHC: No SVHC (16-Jul-2019)
- Product Range: TPI 125A-J Series
- No. of Outputs: 1 Output
- Input Voltage VAC: 85V AC to 264V AC
- Power Supply Output Type: Adjustable, Fixed
- Output Current - Output 1: 8.34A
- Output Current - Output 2: -
- Output Current - Output 3: -
- Output Current - Output 4: -
- Output Voltage - Output 1: 15VDC
- Output Voltage - Output 2: -
- Output Voltage - Output 3: -
- Output Voltage - Output 4: -
- Power Supply Applications: ITE
- Power Rating (Forced Cooling): 125W @ 400LFM
- Power Rating (Convection Cooling): -
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 46.94 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**TPI 125A-J Series, 125 Watt** ## **AC/DC Power Supply** - **125 Watt open frame power supplies in a 3" x 2" package** - **Compact and cost efficient design** - **Peak power function up to 120%** - **I/O reinforced isolation 4000 VAC** - **Operating temperature range –40°C to +85°C** - **No load input power <0.3W (acc. ErP directive)** - **High efficiency up to 92%** - **Internal EN 55032 class B filter** - **Protection class II prepared** - **3-year product warranty** UL 62368-1 IEC 62368-1 The TPI 125A-J is a 125 Watt AC/DC open frame power supplies series with a 4000 VAC reinforced isolation system. Our TPI line specifically focuses on providing cost efficient industrial power supplies in compact designs. This series offers a peak power function which enables the unit to deliver up to 120% of the rated power for up to 10 seconds. Excellent efficiency of up to 92% allows a compact design and an operating temperature range (natural convection) of –40°C to +50°C without derating, while going up to +85°C with either load derating or forced cooling. They are designed to meet the ErP directive (< 0.3 W no load power consumption) and come with an EMC characteristics dedicated for applications in industrial/automation and test & measurement fields. High reliability is provided by use of industrial high-quality grade components and an excellent thermal management. It makes the TPI 125A-J an ideal solution for any demanding industrial devices or space critical applications. |**Order Code**|**Output Power**<br>**max.**|**Output Voltage**<br>**nom.**(adjustable)|**Output Current max. **<br>(Forced air cooling)|**Output Current max. **<br>(Natural convection)|**Output Current Efficiency**<br>**peak**|**Output Current Efficiency**<br>**typ.**| |---|---|---|---|---|---|---| |**TPI 125-112A-J**<br>**TPI 125-115A-J**<br>**TPI 125-124A-J**<br>**TPI 125-136A-J**<br>**TPI 125-148A-J**|125 W|12 VDC(9.6 - 13.2 VDC)<br>15 VDC(12.0 - 16.5 VDC)<br>24 VDC(19.2 - 26.4 VDC)<br>36 VDC(28.8 - 39.6 VDC)<br>48 VDC(38.4 - 52.8 VDC)|10'420 mA<br>8'340 mA<br>5'210 mA<br>3'480 mA<br>2'610 mA|8'340 mA<br>6'670 mA<br>4'170 mA<br>2'780 mA<br>2'090 mA|12'500 mA<br>10'000 mA<br>6'250 mA<br>4'167 mA<br>3'125 mA|91 %<br>92 %<br>92 %<br>91 %<br>91 %| **Page 1 / 5** **April 16, 2026** **www.tracopower.com** **TPI 125A-J Series, 125 Watt** ## **Input Specifications** |Input Voltage|- AC Range|Operational Range: 85 - 264 VAC(Full Range)| |---|---|---| |||Rated Range: 100 - 240 VAC(Full Range)| ||- DC Range|Operational Range: 120 - 370 VDC(Designed for, no certification)| |||Polarity: +DC: L / –DC: N| |Input Frequency||Operational Range: 47 - 440 Hz| |||Certified: 50/60 Hz| |Power Consumption|- No load & Vin = 230 VAC|300 mW max.(Ready to meet ErP directive)| ||- No load & Vin = 115 VAC|300 mW max.| |Input Current|- Full load & Vin = 230 VAC|700 mA max.| ||- Full load & Vin = 115 VAC|1'800 mA max.| |Input Inrush Current|- At 230 VAC|100 A max.| ||- At 115 VAC|60 A max.| |Power Factor|- At 230 VAC|0.95 min.(Active Power Factor Correction)| ||- At 115 VAC|0.95 min.(Active Power Factor Correction)| |Input Protection||T 3.15 A / 250 VAC(Internal Fuse in L)| |Recommended Input Fuse||(The need of an external fuse has to be assessed| |||in the final application.)| ## **Output Specifications** |Output Voltage Adjustment||–20% to +10%(For trim-down lower than -10%| |---|---|---| |||a minimum load of 0.25 W is required)| |||(By trim potentiometer)| |||Outputpower must not exceed ratedpower!| |Voltage Set Accuracy||±1% max.| |Regulation|- Input Variation (Vmin - Vmax)|0.2% max.| ||- Load Variation(0 - 100%)|0.5% max.| |Boost Power||Output Current peak: See model table| |||150 W max. peak power(≥ 130 VAC input)| |||140 W max. peak power(< 130 VAC input)| |||Peak power time: 10 s max.| |||Peak power duty cycle: 20% max.| |||Average operation power: 55% of full load| |||(detailed description see application note)| |Ripple and Noise||12 VDC model: 140 mVp-p typ.(w/ 10 µF, 25 V, MLCC)| |(20 MHz Bandwidth)||15 VDC model: 150 mVp-p typ.(w/ 10 µF, 25 V, MLCC)| |||24 VDC model: 160 mVp-p typ.(w/ 1 µF, 50 V, MLCC)| |||36 VDC model: 190 mVp-p typ.(w/ 1 µF, 50 V, MLCC)| |||48 VDC model: 340 mVp-ptyp. (w/ 0.1µF,100 V,MLCC)| |Capacitive Load||12 VDC model: 8'700 µF max.| |||15 VDC model: 5'600 µF max.| |||24 VDC model: 2'200 µF max.| |||36 VDC model: 1'000 µF max.| |||48 VDC model: 550µF max.| |Minimum Load||Not required| |Temperature Coefficient||±0.02 %/K max.| |Hold-up Time|- At 230 VAC|40 ms min.| ||- At 115 VAC|20 ms min.| |Start-up Time|- At 230 VAC|730 ms max.| ||- At 115 VAC|730 ms max.| |Short Circuit Protection||Continuous,Automatic recovery| |Output Current Limitation||120 - 160% of Iout max.| |Overvoltage Protection||115 - 135% of Vout nom. (Latch off)| |Transient Response|- Response Deviation|3% max.(50% to 75% Load Step at 2.5 A/µs)| ||- Response Time|500 µs typ.(50% to 75% Load Step at 2.5 A/µs)| All specifications valid at 230 VAC, resistive full load and +25°C after warm-up time, unless otherwise stated. **Page 2 / 5** **April 16, 2026** **www.tracopower.com** **TPI 125A-J Series, 125 Watt** ## **Safety Specifications** |Standards|- IT / Multimedia Equipment||EN 62368-1| |---|---|---|---| ||||IEC 62368-1| ||||UL 62368-1| ||- Certification Documents||www.tracopower.com/tpi125a-j-safety-cert| |Protection Class|||Class I & II(Prepared): Reinforced Insulation| |||See application note:|www.tracopower.com/info/protection-class.pdf| |EnergySource|- Output,acc. to 62368-1||ES1| |Power Source|- Output,acc. to 62368-1||PS3| |Pollution Degree|||PD 2| |Over Voltage Category|||OVC II| |**EMC Specifications**|||| |EMI (Emissions)|- Conducted Emissions||EN 55032 class A(internal filter)| ||||EN 55032 class B(internal filter)| ||||FCC 47 Part 15 class A(internal filter)| ||||FCC 47 Part 15 class B(internal filter)| ||- Radiated Emissions||EN 55032 class A(internal filter)| ||||FCC 47 Part 15 class A(internal filter)| ||- Harmonic Current Emissions||EN 61000-3-2, class A| ||||EN 61000-3-2, class D| ||- Voltage Fluctuations & Flicker||EN 61000-3-3| |EMS (Immunity)|||EN 55024(IT Equipment)| ||||EN 55035(Multimedia)| ||- Electrostatic Discharge|Air:|EN 61000-4-2, ±8 kV, perf. criteria A| |||Contact:|EN 61000-4-2, ±6 kV, perf. criteria A| ||- RF Electromagnetic Field||EN 61000-4-3, 20 V/m, perf. criteria A| ||- EFT (Burst) / Surge||EN 61000-4-4, ±2 kV, perf. criteria A| |||L to L:|EN 61000-4-5, ±1 kV, perf. criteria A| ||- Conducted RF Disturbances||EN 61000-4-6, 20 Vrms, perf. criteria A| ||- PF Magnetic Field|Continuous:|EN 61000-4-8, 10 A/m, perf. criteria A| ||- Voltage Dips & Interruptions|230 VAC / 50 Hz:|EN 61000-4-11| |||115 VAC / 60 Hz:|EN 61000-4-11| |EMC / Environmental|- Certification Documents||www.tracopower.com/tpi125a-j-emc-cert| |**General Specifications**|**General Specifications**||| |---|---|---|---| |Relative Humidity|||95% max. (non condensing)| |Temperature Ranges|- Operating Temperature||–40°C to +85°C| ||- Storage Temperature||–40°C to +85°C| ||||(-40°C startup: 80% load max. at Vin >100 VAC| ||||-40°C startup: 100% load max. at Vin >200 VAC)| |Power Derating|- High Temperature||Depending on model| ||- Low Input Voltage||1.33 %/V below 100 VAC| |||See application note:|www.tracopower.com/tpi125a-j-cc| |Cooling System|- Option 1||Forced air cooling(with external fan, 400 LFM)| ||- Option 2||Natural convection(20 LFM)| |Altitude DuringOperation|||5'000 m max.| |Regulator Topology|||Flyback Converter| |SwitchingFrequency|||60 kHz typ. (PWM QR)| |Insulation System|||Reinforced Insulation| |WorkingVoltage (rated)|||527 VAC| |Isolation Test Voltage|- Input to Output,60 s||4'000 VAC| |Creepage|- Input to Output||8 mm min.| |Clearance|- Input to Output||6.8 mm min.| |Isolation Resistance|- Input to Output,500 VDC||100 MΩ min.| All specifications valid at 230 VAC, resistive full load and +25°C after warm-up time, unless otherwise stated. **Page 3 / 5** **April 16, 2026** **www.tracopower.com** **TPI 125A-J Series, 125 Watt** |Leakage Current|- Touch Current|300 µA max.| |---|---|---| |(at 264 VAC)||| |Distance Through Isolation||0.4 mm| |Reliability|- Calculated MTBF|790'000 h(MIL-HDBK-217F, ground benign)| |Environment|- Vibration|IEC 60068-2-6| ||- Mechanical Shock|IEC 60068-2-27| |HousingType||Open Frame| |MountingType||Chassis Mount| |Connection Type||Pin Connector| |Weight||156 g| |Environmental Compliance|- REACH Declaration|www.tracopower.com/info/reach-declaration.pdf| |||REACH SVHC list compliant| |||REACH Annex XVII compliant| ||- RoHS Declaration|www.tracopower.com/info/rohs-declaration.pdf| |||Exemptions: 7(a), 7(c)-I| |||(RoHS exemptions refer to the component| |||concentration only, not to the overall| |||concentration in the product (O5A rule).)| ||- SCIP Reference Number|e4d5a091-95d0-45c6-8dab-009f826a54f8| |**Additional Information**||| |SupportingDocuments||www.tracopower.com/overview/tpi125a-j| |FrequentlyAsked Questions||www.tracopower.com/glossary-faq| |Glossary||www.tracopower.com/info/glossary.pdf| All specifications valid at 230 VAC, resistive full load and +25°C after warm-up time, unless otherwise stated. **Page 4 / 5** **April 16, 2026** **www.tracopower.com** **TPI 125A-J Series, 125 Watt** ## **Outline Dimensions** **==> picture [271 x 343] intentionally omitted <==** **----- Start of picture text -----**<br> 77.2 (3.04)<br>69.80 (2.748)<br>1<br>3<br>4<br>1<br>Ø3.2 (Ø0.13) Voltage adj.<br>FRONT VIEW 2.5 max.<br>(0.10 max.)<br>Dimensions in mm (inch)<br>Tolerances: x.x ±0.5 (x.xx ±0.02)<br>Tolerances: x.xx±0.25 (x.xxx ±0.01)<br>Mounting screw lock torque: Max. 0.49 Nm (5 kgfcm)<br>(2.01) (1.750) CON1<br>51.1 44.45<br>CON2<br>(1.16)<br>(0.06) 29.5<br>1.6<br>**----- End of picture text -----**<br> |Pin connectors|Pin connectors|Pin connectors|Pin connectors| |---|---|---|---| |Input(CON1)||Output(CON2)|| |Pin<br>1|Function<br>Line|Pin<br>1-2*|Function<br>–Vout| Terminal rated for 10 A max. per pin. ## CON1: JST series mates with JST crimp terminal: SVH-21T-P1.1 and terminal housing: VHR-3N CON2: JST series mates with JST crimp terminal: SVH-21T-P1.1 and terminal housing: VHR-4N Specifications can be changed without notice. © Copyright 2025 Traco Electronic AG Rev. April 16, 2026 **Page 5 / 5** www.tracopower.com
Updated at April 27, 2026
TRACO Electronic AG, operating globally under the Traco Power brand, is a premier Swiss power supply specialist with over 35 years of industry expertise. Renowned for engineering high-quality power conversion products, the company delivers reliable, cost-effective solutions tailored to the exacting standards of industrial, medical, railway, and automation applications. The cornerstone of our Traco Power portfolio is an extensive selection of power conversion systems. Our offering is heavily focused on a vast array of high-performance AC/DC converters engineered to provide exceptional efficiency and safety for sensitive electronics. This is complemented by a robust lineup of DC/DC converters built to ensure stable, isolated power delivery in challenging environments. Beyond flagship power supplies, the Traco Power range includes specialized passive components and thermal management solutions essential for complete system integration. We supply power inductors, common mode chokes, and power line filters designed for rigorous EMC and RFI suppression, alongside natural convection heat sinks that guarantee optimal thermal performance and prolonged component lifespan.
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