RHFL4913ESY331 STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
Radiation-hardened positive fixed 3.3 V voltage regulator by STMicroelectronics, featuring 5.8 V to 12 V input range, 0.95 V dropout, and ±0.0132% load regulation. Designed for space-grade applications. Available in vertical TO package with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- RHFL4913ESY331 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Radiation-hardened design rated for space-grade environments with TID tolerance
- Fixed 3.3 V output with ultra-low dropout voltage of 0.95 V for power efficiency
- Tight load and line regulation of ±0.0132% for stable supply rails in harsh conditions
Applications
The RHFL4913ESY331 is designed for satellite power management systems and space-grade electronics where radiation hardness is critical. It provides a stable 3.3 V supply rail for FPGAs, microprocessors, and digital logic in LEO and GEO satellite platforms. Its fixed output and low dropout make it ideal for power-constrained space instruments and avionics subsystems.
Specifications
| YTEOL | 6.01 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 0.95V |
| Input Voltage Absolute-Max | 14V |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 5.8V |
| JESD-30 Code | R-CSFM-T3 |
| JESD-609 Code | e0 |
| Line Regulation-Max | 0.0132% |
| Load Regulation-Max | 0.0132% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -55 °C |
| Output Current1-Max | 3A |
| Output Voltage1-Max | 3.37V |
| Output Voltage1-Min | 3.23V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | SIP3,.1TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Total Dose | 300k Rad(Si) V |
| Voltage Tolerance-Max | 2% |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | France |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for RHFL4913ESY331:
Frequently Asked Questions
What is the input voltage range supported by the RHFL4913ESY331?
The RHFL4913ESY331 supports an input voltage range of 5.8 V to 12 V, with an absolute maximum input of 14 V. This wide range ensures compatibility with regulated bus voltages commonly used in space power systems, providing design flexibility across different satellite bus architectures.
How does the RHFL4913ESY331 perform in radiation-heavy orbital environments?
The RHFL4913ESY331 is radiation-hardened for use in LEO and GEO orbits, tolerating significant total ionizing dose (TID) levels. It maintains a stable 3.3 V fixed output with a 0.95 V dropout voltage, ensuring reliable power delivery across -40°C to +125°C operating temperatures in space environments.
When should an engineer choose the RHFL4913ESY331 over a commercial LDO regulator?
Engineers should choose the RHFL4913ESY331 when the design must operate in radiation environments such as satellite platforms or high-altitude systems. Unlike commercial LDOs, this regulator is qualified for space-grade use, maintaining ±0.0132% regulation accuracy and a 0.95 V dropout under radiation exposure that would degrade or destroy non-hardened devices.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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