IEU0348S05 XP POWER Power Supply (Other) In Stock
XP Power IEU0348S05 is a regulated DC-DC power supply module in a DIP-8 package with a nominal 48 V input range (36 V to 75 V) and 5 V output, achieving up to 82% efficiency with tight 0.2% line regulation. Designed for industrial and telecommunications applications requiring stable isolated power conversion from high-voltage DC bus rails. Holds CB, CE, UL, and UKCA approvals; in stock with worldwide shipping.
- Manufacturer
- XP POWER
- Package
- Other
- Pin Count
- 5
- Lifecycle
- END OF LIFE
- Datasheet
- IEU0348S05 Datasheet PDF
- Category
- Power Supply
- Price
- From $19.8500(MOQ 1)
- Temp Range
- -40.0°C to 95.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of IEU0348S05?
- Wide input range of 36 V to 75 V (nominal 48 V) covers standard telecom and industrial DC bus voltages without external pre-regulation
- Regulated 5 V output with 0.2% line regulation ensures stable power delivery to noise-sensitive logic and analog circuits
- Up to 82% conversion efficiency minimizes heat dissipation, reducing heatsink requirements in thermally constrained DIP-8 footprint designs
- Multiple safety approvals including CB, CE, UL, EN, IEC, and UKCA support deployment in regulated industrial, medical-adjacent, and telecoms markets
What is IEU0348S05 used for?
The IEU0348S05 is used in telecommunications equipment, industrial control systems, and distributed power architectures that operate from a 48 V DC bus and require a regulated 5 V local supply for logic and I/O circuitry. Its DIP-8 form factor and wide 36 V to 75 V input range make it well-suited for retrofit installations in legacy telecom central office equipment, railway control modules, and industrial sensor nodes drawing power from 48 V battery-backed bus rails. The combination of high efficiency and multi-standard approvals also makes it appropriate for smart grid monitoring and building automation systems.
What are the specifications of IEU0348S05?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | DC-DC REGULATED POWER SUPPLY MODULE |
| Approvals | CB, CE, EN, IEC, UKCA, UL |
| Efficiency (Main Output) | 82% |
| Input Voltage-Max | 75V |
| Input Voltage-Min | 36V |
| Input Voltage-Nom | 48V |
| JESD-30 Code | S-XDIP-P4 |
| Line Regulation-Max | 0.2% |
| Load Regulation-Max | 1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.6A |
| Output Voltage-Max | 5.075V |
| Output Voltage-Min | 4.925V |
| Output Voltage-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | DIP4/8,.3 |
| Package Shape | SQUARE |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Protections | OVER LOAD; SHORT CIRCUIT |
| Ripple Voltage (Main Out) | 0.02474Vrms |
| Screening Level | UL 62328-1 |
| Surface Mount | NO |
| Technology | HYBRID |
| Terminal Form | PIN/PEG |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Total Power Output-Max | 3W |
| Trim/Adjustable Output | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Where can I find the IEU0348S05 datasheet?
IEU0348S05 Datasheet DownloadOfficial datasheet from XP POWER
What are equivalent replacements for IEU0348S05?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the IEU0348S05, and which bus voltages does it support?
The IEU0348S05 accepts an input voltage range of 36 V to 75 V with a nominal operating point of 48 V. This range is compatible with standard telecom DC bus voltages (48 V nominal), industrial 48 V battery-backed systems, and end-of-charge battery voltages that can rise to 56 V or higher, eliminating the need for an upstream pre-regulator in most 48 V distributed power architectures.
How efficient is the IEU0348S05, and how does this affect thermal management in a DIP-8 package?
The IEU0348S05 achieves up to 82% conversion efficiency at its rated load. For a 3 W output device (5 V at 0.6 A), 82% efficiency means approximately 0.66 W of heat dissipation in the DIP-8 package. This low thermal load typically requires no heatsink in ambient temperatures up to 70°C, simplifying PCB layout and reducing BOM cost compared to lower-efficiency converters that require thermal pads or forced-air cooling.
Which international approvals does the IEU0348S05 hold, and what markets does it open?
The IEU0348S05 carries CB, CE, EN, IEC, UKCA, and UL approvals. CB certification enables recognition across 60+ IECEE member countries, CE and UKCA mark approval covers EU and UK market access, and UL listing satisfies North American safety requirements. These multi-standard certifications allow the module to be designed into products targeting global industrial, telecommunications, and commercial markets without requiring separate regional safety re-testing.
When should a designer choose the IEU0348S05 over a non-isolated linear regulator for a 48 V to 5 V conversion?
A designer should choose the IEU0348S05 over a linear regulator for 48 V to 5 V conversion because a linear regulator would dissipate up to 43 V x output current as heat — at 0.1 A, that is 4.3 W versus under 0.7 W for the IEU0348S05 at 82% efficiency. The IEU0348S05 also provides galvanic isolation between the 48 V input bus and the 5 V output, protecting downstream circuitry from ground loop noise and high-voltage transients common in industrial and telecom environments.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About XP POWER
XP POWER is a leading electronic component manufacturer. FindMyChip sources XP POWER ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $23.2900 | $23.29 |
| 10+ | $23.0300 | $230.30 |
| 50+ | $21.2500 | $1062.50 |
| 100+ | $19.8500 | $1985.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
BD33GC0WEFJ-E2
ROHM Semiconductor
Power Supply
TMF 10115
Traco Power
Power Supply
TMF 10112
Traco Power
Power Supply
TNY275GN-TL
Power Integrations
Power Supply
SCW03C-12
Mean Well
Power Supply
SCW03A-12
Mean Well
Power Supply
V150C28C150BL
VICOR
Power Supply
V150C24C150BL
VICOR
Power Supply
TMG 30115
Traco Power
Power Supply
TMG 30103
Traco Power
Power Supply
THM 10-1212
Traco Power
Power Supply
THM 10-4811
Traco Power
Power Supply
THM 10-1213
Traco Power
Power Supply
THM 10-0511
Traco Power
Power Supply
THM 10-1215
Traco Power
Power Supply
THM 10-1222
Traco Power
Power Supply
THM 10-2422
Traco Power
Power Supply
THM 10-0523
Traco Power
Power Supply
THM 10-1223
Traco Power
Power Supply
THM 10-4822
Traco Power
Power Supply
THM 10-2410
Traco Power
Power Supply
THM 10-2412
Traco Power
Power Supply
THM 10-4810
Traco Power
Power Supply
THM 10-0513
Traco Power
Power Supply