2N2324 Equivalent & Substitute Parts

Part Overview

The 2N2324 is a sensitive gate SCR (silicon-controlled rectifier) rated for 100 V off-state operation with a maximum gate trigger current of 200 µA. Manufactured by Microchip Technology, this component is housed in a TO-5 metal can package and is qualified to MIL-PRF-19500/276 military standards. The 2N2324 is classified as obsolete, making identification of functionally equivalent active alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

2N2324

Microchip TechnologyIn Stock: 14622N2324 Datasheet

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P0130AA 1EA3

STMicroelectronicsIn Stock: 755P0130AA 1EA3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2N2324 is determined by equivalence in the following critical electrical parameters:

• Voltage - Off State: 100 V (primary voltage rating)
• Voltage - Gate Trigger (Vgt) (Max): 800 mV (gate sensitivity threshold)
• SCR Type: Sensitive Gate (functional classification)
• Mounting Type: Through Hole (mechanical compatibility)

The P0130AA 1EA3 manufactured by STMicroelectronics satisfies these core substitution criteria. Both devices operate at 100 V off-state voltage with identical 800 mV maximum gate trigger voltage and are classified as sensitive gate SCRs in through-hole packages. The P0130AA 1EA3 is an active product with ROHS3 compliance, providing a direct functional replacement path for the obsolete 2N2324.

Parameter Comparison

Engineering Selection Recommendations

The P0130AA 1EA3 serves as the functional equivalent for the obsolete 2N2324 based on matching voltage ratings and gate trigger specifications. The substitute part is currently in active production status with ROHS3 compliance, supporting modern procurement and environmental regulatory requirements.

The P0130AA 1EA3 exhibits higher current-handling capability (500 mA average on-state current versus 220 mA for the 2N2324) and lower gate trigger current (1 µA versus 200 µA), representing improved performance characteristics within the same voltage class. The operating temperature range of the substitute extends to -40°C minimum, which is narrower than the 2N2324's -65°C minimum; applications requiring operation below -40°C require evaluation of alternative solutions.

Package differences exist between the devices: the 2N2324 uses TO-5 metal can packaging while the P0130AA 1EA3 uses TO-92-3 plastic packaging. PCB layout and thermal management designs must account for this package transition.

Frequently Asked Questions (FAQ)

Q: Can the P0130AA 1EA3 directly replace the 2N2324 in existing designs?

A: The P0130AA 1EA3 is electrically equivalent at the 100 V voltage rating and 800 mV gate trigger threshold. However, the package change from TO-5 metal can to TO-92-3 plastic requires PCB layout modification. Thermal characteristics differ between packages; designs relying on the TO-5 metal can's superior heat dissipation must evaluate thermal performance with the TO-92-3 package.

Q: What are the key differences in current ratings?

A: The P0130AA 1EA3 supports higher on-state current (500 mA average, 800 mA RMS) compared to the 2N2324 (220 mA average). The substitute also exhibits lower gate trigger current (1 µA versus 200 µA), requiring less gate drive power. These differences represent performance improvements and do not prevent substitution in applications designed for the 2N2324's lower current ratings.

Q: Are there temperature range limitations with the substitute?

A: The P0130AA 1EA3 operates from -40°C to 125°C, while the 2N2324 operates from -65°C to 125°C. Applications requiring operation below -40°C cannot use the P0130AA 1EA3 without alternative component selection.

Q: What compliance differences exist between these parts?

A: The 2N2324 is RoHS non-compliant and qualified to MIL-PRF-19500/276 military standards. The P0130AA 1EA3 is ROHS3 compliant and REACH unaffected. New designs should prioritize the P0130AA 1EA3 for regulatory compliance; legacy military applications may require the original 2N2324 specification.

Q: How do the package differences affect circuit design?

A: The TO-5 metal can (2N2324) and TO-92-3 plastic (P0130AA 1EA3) packages have different pin configurations and thermal properties. The TO-5 package provides superior heat dissipation through its metal case; the TO-92-3 package is smaller and lighter. PCB footprints are not interchangeable; layout redesign is required for substitution.