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TSR 1-24150SM
Non Isolated POL DC/DC Converter, ITE, 1 Output, 15 W, 15 V, 1 A, Fixed
⚠️ 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: DC / DC Non Isolated Board Mount Converters - Fixed Output
- SVHC: No SVHC (14-Jun-2023)
- Depth: 15.2mm
- Width: 9.3mm
- Height: 7.6mm
- Product Range: TSR 1SM
- No. of Outputs: 1 Output
- Output Power Max: 15W
- Output Current Max: 1A
- Output Voltage Nom: 15V
- Input Voltage DC Max: 36V
- Input Voltage DC Min: 18V
- DC / DC Converter Type: Surface Mount DIP
- Power Supply Applications: ITE
- DC / DC Converter Mounting: Surface Mount Device
- DC / DC Converter Output Type: Fixed
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 8.12 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Non-Isolated DC/DC Converter (POL)** **TSR 1SM Series, 1 A** - **SMD-package** - **Up to 96% efficiency** - **No thermal layer required** - **Built in filter capacitors** - **Operation temp. range –40°C to +85°C** - **Short circuit protection** - **Wide input operating range** - **Excellent line / load regulation** The new TSR-1SM series models of step-down switching regulators have a high efficiency up to 96% which allows full load operation up to +65°C ambient temperature without the need of any heat transmission layer. Excellent output voltage accuracy (±2%) and low standby current (~1 mA) are features that distinguish these switching regulators from linear regulators. - **Low standby current** - **3-year product warranty** ## **Models** |**Order Code**|**Output Current**<br>**max.**|**Input Voltage**<br>**Range**|**Output Voltage**<br>**nom.**|**Efficiency**<br>**typ.**| |---|---|---|---|---| |**TSR 1-0512SM**<br>**TSR 1-0515SM**<br>**TSR 1-0518SM**<br>**TSR 1-0525SM**|1'000 mA|3 - 5.5 VDC(5 VDC nom.)|1.2 VDC<br>1.5 VDC<br>1.8 VDC<br>2.5 VDC|91 %(at Vin min.)<br>92 %(at Vin min.)<br>93 %(at Vin min.)<br>95 %(at Vin min.)| |||3.8 - 5.5 VDC(5 VDC nom.)||| |**TSR 1-2412SM**<br>**TSR 1-2415SM**<br>**TSR 1-2418SM**<br>**TSR 1-2425SM**<br>**TSR 1-2433SM**<br>**TSR 1-2450SM**<br>**TSR 1-2465SM**||4.6 - 36 VDC(12 VDC nom.)|1.2 VDC<br>1.5 VDC<br>1.8 VDC<br>2.5 VDC<br>3.3 VDC<br>5 VDC<br>6.5 VDC|74 %(at Vin min.)<br>79 %(at Vin min.)<br>82 %(at Vin min.)<br>87 %(at Vin min.)<br>91 %(at Vin min.)<br>94 %(at Vin min.)<br>94 %(at Vin min.)| |||4.75 - 36 VDC(12 VDC nom.)||| |||6.5 - 36 VDC(12 VDC nom.)||| |||9 - 36 VDC(12 VDC nom.)||| |**TSR 1-2490SM**<br>**TSR 1-24120SM**<br>**TSR 1-24150SM**||12 - 36 VDC(24 VDC nom.)|9 VDC<br>12 VDC<br>15 VDC|95 %(at Vin min.)<br>95 %(at Vin min.)<br>96 %(at Vin min.)| |||15 - 36 VDC(24 VDC nom.)||| |||18 - 36 VDC(24 VDC nom.)||| **Page 1 / 4** **May 27, 2026** **www.tracopower.com** **TSR 1SM Series, 1 A** ## **Input Specifications** Input Current |Input Current|- At no load|5 Vin models:|1 mA typ.| |---|---|---|---| |||12 Vin models:|1 mA typ.| |||24 Vin models:|1 mA typ.| ||- At full load|5 Vin models:|1'000 mA max.| |||12 Vin models:|1'000 mA max.| |||24 Vin models:|1'000 mA max.| ||||(at Vin min.)| |Reflected Ripple Current|||150 mAp-ptyp.| |Recommended Input Fuse||5 Vin models:|1'000 mA(slow blow)| |||24 Vin models:|1'600 mA(slow blow)| ||- 12 Vin input|1.2 Vout models:|800 mA(slow blow)| |||1.5 Vout models:|800 mA(slow blow)| |||1.8 Vout models:|800 mA(slow blow)| |||2.5 Vout models:|1'250 mA(slow blow)| |||3.3 Vout models:|1'250 mA(slow blow)| |||5 Vout models:|1'250 mA(slow blow)| |||6.5 Vout models:|1'250 mA(slow blow)| ||||(The need of an external fuse has to be assessed| ||||in the final application.)| |Input Filter|||Internal Capacitor| |**Output Specifications**|||| |Voltage Set Accuracy|||±2% max.| |Regulation|- Input Variation (Vmin - Vmax)||0.2% max.| ||- Load Variation(0 - 100%)||0.6% max.| |Ripple and Noise||5 Vin models:|50 mVp-p typ.| |(20 MHz Bandwidth)||12 Vin models:|50 mVp-p typ.| |||24 Vin models:|75 mVp-ptyp.| |Capacitive Load|||470µF max.| |Minimum Load|||Not required| |Temperature Coefficient|||±0.015 %/K max.| |Start-upTime|||5 ms typ.| |Short Circuit Protection|||Continuous,Automatic recovery| |Output Current Limitation|||480% typ. of Iout max.(5 Vin models)| ||||250% typ.(other models)| |Transient Response|- Peak Variation||200 mV typ. / 400 mV max.(50% Load Step)| ||- Response Time||250 µs typ. / 350 µs max.(50% Load Step)| ## **Safety Specifications** Over Voltage Category Not mains connected ## **EMC Specifications** |EMI (Emissions)|- Conducted Emissions|EN 55032 class A(with external filter)| |---|---|---| |||EN 55032 class B(with external filter)| ||- Radiated Emissions|EN 55032 class A(with external filter)| |||EN 55032 class B(with external filter)| |||External filterproposal: www.tracopower.com/tsr1sm-emc-filter| ## **General Specifications** |Relative Humidity||95% max. (non condensing)| |---|---|---| |Temperature Ranges|- Operating Temperature|–40°C to +85°C| ||- Case Temperature|+105°C max.| ||- Storage Temperature|–55°C to +125°C| All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. **Page 2 / 4** **May 27, 2026** **www.tracopower.com** **TSR 1SM Series, 1 A** ## 2.5 %/K above 65°C ||||| |---|---|---|---| |Power Derating|- High Temperature||2.5 %/K above 65°C| |||See application note:|www.tracopower.com/tsr1sm-cc| |Over Temperature|- Protection Mode||150°C typ.(Automatic recovery)| |Protection Switch Off|- Measurement Point||Internal IC temperature| |CoolingSystem|||Natural convection(20 LFM)| |Regulator Topology|||Buck Converter| |Switching Frequency|||1200 kHz typ.(PWM) (5 Vin models)| ||||500 kHz typ.(PWM) (other models)| |Insulation System|||Non-isolated| |Reliability|- Calculated MTBF||12'000'000 h(MIL-HDBK-217F, ground benign)| |Moisture Sensitivity (MSL)|||Level 1(J-STD-033C)| |Washing Process|||According to Cleaning Guideline| ||||www.tracopower.com/info/cleaning.pdf| |Environment|- Vibration||MIL-STD-810F| ||- Thermal Shock||MIL-STD-810F| |HousingMaterial|||Non-conductive Plastic(UL 94 V-0 rated)| |Base Material|||Non-conductive Plastic(UL 94 V-0 rated)| |Potting Material|||Epoxy(UL 94 V-0 rated) (Converter halfway| ||||potted on top of the PCB, not visible through vent| ||||hole)| |Pin Material|||Copper| |Pin Foundation Plating|||Nickel(2 - 3µm)| |Pin Surface Plating|||Tin(3 - 5µm),matte| |HousingType|||Plastic Case| |MountingType|||PCB Mount| |Connection Type|||SMD(Surface-Mount Device)| |Footprint Type|||SMD10| |Soldering Profile|||Lead-Free Reflow Soldering(acc. J-STD-020E)| ||||245°C max.(Tc)| ||||30 s max.(tp, at Tp - 5°C)| ||||65 s max.(tL, time above 217°C )| |||See application note:|www.tracopower.com/info/reflow-soldering.pdf| |Weight|||1.7g| |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||88c49d6d-d291-4109-a33e-aaca264fda7b| |**Additional Information**|||| |SupportingDocuments|||www.tracopower.com/overview/tsr1sm| |FrequentlyAsked Questions|||www.tracopower.com/glossary-faq| |Glossary|||www.tracopower.com/info/glossary.pdf| |Service Portal|||www.tracoserviceportal.com| All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. **Page 3 / 4** **May 27, 2026** **www.tracopower.com** **TSR 1SM Series, 1 A** ## **Outline Dimensions** **==> picture [316 x 225] intentionally omitted <==** **----- Start of picture text -----**<br> S<br>15.2 0.4 (0.01)<br>(0.60)<br>2.54 5.08 2.54<br>(0.10) (0.20) (0.10)<br>10 9 7 6<br>top view<br>1 5 Dimensions in mm (inch)<br>Tolerances: x.xx ±0.5 (x.x ±0.02)<br>0.5 Tolerances: x.xxx ±0.25 (x.xx ±0.01)<br>2.54 10.16 (0.02) Pin pich tolerances: ±0.25 (±0.01)<br>(0.10) (0.40) Pin dimension tolerances: ±0.1 (±0.004)<br>0~8°<br>7.6 (0.30)<br>0.30 (0.01)<br>9.3 (0.37) 11.8 (0.47)<br>**----- End of picture text -----**<br> |Pinout|Pinout| |---|---| |Pin|Function| |1<br>|+Vin<br>| |5|+Vout| |6|NC| |7|GND| |9|GND| |10|NC| NC: Not connected ## **Recommended Solder Pad Layout** **==> picture [154 x 132] intentionally omitted <==** **----- Start of picture text -----**<br> 2.54 2.54 5.08 2.54<br>(0.10) (0.10) (0.20) (0.10)<br>10 9 7 6<br>1 5<br>10.16 1.5x1.5<br>(0.40) (0.006x0.006)<br>9.3 (0.37) 9.7 (0.38)<br>**----- End of picture text -----**<br> © Copyright 2026 Traco Electronic AG Specifications can be changed without notice. Rev. May 27, 2026 **Page 4 / 4** www.tracopower.com
Updated at April 23, 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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