2N2907AHR STMicroelectronics Transistor BJT PNP (Other) In Stock
STMicroelectronics 2N2907AHR is a radiation-hardened PNP bipolar transistor rated at 60 V collector-emitter voltage and 600 mA collector current, designed for space and high-reliability applications. Housed in a hermetic TO-18 metal can package with an operating range of -65 degrees C to +200 degrees C.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- 2N2907AHR Datasheet PDF
- Category
- Transistor BJT PNP
- Temp Range
- ?°C to 200.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Radiation-hardened construction for space and high-reliability environments
- Wide temperature range of -65 C to +200 C in hermetic TO-18 metal can
- 60 V VCEO and 600 mA IC with DC current gain hFE min 50 for robust switching and amplification
Applications
The 2N2907AHR is designed for space-qualified electronics, satellite subsystems, and military avionics where radiation tolerance and high operating temperature are mandatory. It also serves in industrial high-reliability switching circuits, linear regulators, and signal-level amplifiers demanding hermetically sealed packaging.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Collector Current-Max (IC) | 0.6A |
| Collector-Emitter Voltage-Max | 60V |
| Configuration | SINGLE |
| DC Current Gain-Min (hFE) | 50 |
| JEDEC-95 Code | TO-18 |
| JESD-30 Code | O-MBCY-W3 |
| JESD-609 Code | e4 |
| Number of Elements | 1 |
| Package Body Material | METAL |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Polarity/Channel Type | PNP |
| Power Dissipation-Max (Abs) | 1.8W |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | GOLD |
| Terminal Form | WIRE |
| Terminal Position | BOTTOM |
| Transistor Element Material | SILICON |
| Turn-off Time-Max (toff) | 300ns |
| Turn-on Time-Max (ton) | 45ns |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What radiation tolerance makes the 2N2907AHR suitable for space applications compared to standard 2N2907 variants?
The 2N2907AHR is radiation-hardened and qualifies for space and high-reliability systems where standard commercial 2N2907 parts would degrade. It maintains its 60 V VCEO, 600 mA IC, and hFE minimum 50 specifications after exposure to ionizing radiation doses, making it appropriate for satellite power control and radiation-belt missions.
How does the TO-18 hermetic metal can package of the 2N2907AHR protect against harsh operating environments?
The hermetic TO-18 package seals the die inside a welded metal enclosure, preventing moisture ingress and outgassing that would degrade performance in vacuum or humidity extremes. Combined with the -65 C to +200 C operating range, the package ensures stable hFE and leakage characteristics across aerospace thermal cycling conditions well beyond plastic-packaged alternatives.
Can the 2N2907AHR directly replace a commercial 2N2907A in a switching power stage operating at 40 V and 400 mA?
Yes, the 2N2907AHR is a drop-in electrical replacement for the 2N2907A: both share 60 V VCEO, 600 mA IC, and hFE minimum 50, and both use the TO-18 footprint. The radiation-hardened variant simply adds space-grade qualification and extended temperature to -65 C, providing a reliability upgrade at higher cost when the design moves from commercial to high-rel production.
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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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