2N5153ESYHRT STMicroelectronics Transistor (Transistor Outline, Vertical) In Stock
STMicroelectronics 2N5153ESYHRT is a radiation-hardened PNP bipolar junction transistor rated at 80V collector-emitter voltage and 5A collector current for space and hi-rel applications. It is qualified for total ionizing dose (TID) environments in a TO-39 metal can package. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- 2N5153ESYHRT Datasheet PDF
- Category
- Transistor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Radiation-hardened design with TID tolerance suitable for low-Earth orbit and geostationary satellite power switching applications where cumulative gamma dose exceeds 10 krad(Si)
- 80V VCEO and 5A IC ratings enable PNP switching and linear regulation of power rails in space power conditioning units and on-board computer power supplies
- TO-39 metal hermetic package provides mechanical robustness and hermeticity required for long-life spacecraft and military avionics environments
Applications
The 2N5153ESYHRT serves as a PNP power switch and series pass element in spacecraft power conditioning systems, satellite battery charge controllers, and on-board computer power buses where radiation tolerance to at least 10 krad(Si) total ionizing dose is a mission requirement. Its 80V and 5A ratings make it suitable for driving relay coils, heater elements, and linear regulator pass stages in geostationary and MEO satellite platforms with multi-year mission lifetimes. Military and space-grade instrument designers also use it in analog signal conditioning circuits where a PNP bipolar transistor with guaranteed rad-hard behavior is necessary for reliable long-term operation in high-radiation environments.
Specifications
| YTEOL | 4 |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | France |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 2N5153ESYHRT:
Frequently Asked Questions
What are the collector-emitter voltage and collector current ratings of the 2N5153ESYHRT?
The 2N5153ESYHRT is rated for 80V collector-emitter breakdown voltage (VCEO) and 5A continuous collector current (IC), providing ample margin for switching 28V spacecraft bus loads up to 5A, the standard power rail voltage used in many LEO and GEO satellite platforms.
How does the radiation hardening of the 2N5153ESYHRT benefit spacecraft power design over a commercial PNP transistor?
Commercial bipolar transistors experience parametric degradation—increased leakage current, reduced current gain (hFE), and threshold shifts—after absorbing 1 to 10 krad(Si) of total ionizing dose. The 2N5153ESYHRT is designed and tested to maintain its 80V and 5A specifications well beyond 10 krad(Si), preventing premature failure in multi-year orbital missions where cumulative dose can exceed 100 krad(Si) in some orbits.
Why is the TO-39 hermetic metal can package chosen for the 2N5153ESYHRT in space applications?
The TO-39 metal hermetic package seals the die in an inert atmosphere with a glass-to-metal feed-through, preventing moisture ingress and outgassing that would degrade performance or contaminate nearby optical surfaces on a spacecraft. Hermetic sealing also maintains mechanical integrity under the launch vibration environment and thermal cycling between -55°C and +125°C experienced during orbital operation.
For a 28V spacecraft bus heater controller, can the 2N5153ESYHRT handle the switching current without exceeding its ratings?
Yes. A 28V heater load drawing up to 5A is within the 2N5153ESYHRT 80V VCEO and 5A IC ratings with comfortable margin. At 28V and 5A the device dissipates power equal to the saturation voltage times 5A; with the TO-39 mounted to a chassis thermal path, the junction temperature stays well below the 150°C maximum rated operating temperature.
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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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