What's a MMBT5401?
The MMBT5401 is a popular PNP bipolar junction transistor in a compact SOT-23 surface mount package, making it ideal for space-constrained PCBs in mobile devices, IoT modules, and handheld devices. It is widely used in amplification, switching, and signal conditioning applications due to its high current gain, low saturation voltage drop, and reliable performance.
If you need a reliable replacement or bulk procurement for the MMBT5401,we provide stable supply,full series small-signal transistors, and fast shipment for OEM/EMS customers.
➡️ MMBT5401 Key Specifications
➡️ Features & Advantages of MMBT5401
- Compact SOT-23 package – Saves PCB space
- High current gain – Improves amplification efficiency
- Low saturation voltage – Enhances switching performance
- Wide operating range – Suitable for various circuit designs
- Cost-effective & widely available – Easy to source
➡️ MMBT5401 Applications
- Signal amplification (audio, RF, and general-purpose circuits)
- Switching circuits (relay drivers, LED drivers, logic level shifting)
- Complementary push-pull configurations
- Voltage regulators and inverters
- Oscillators and pulse generators
➡️ MMBT5401 Equivalents
| Model | Package | Polarity | Notes |
| MMBT5401LT1G | SOT-23 | PNP | ON Semiconductor equivalent |
| MMBT5401-7-F | SOT-23 | PNP | Diodes Inc. equivalent |
| 2N5401 | TO-92 | PNP | Through-hole version |
| MMBTA42 | SOT-23 | NPN | Related high-voltage BJTs (not direct equivalents) |
Our MMBT5401 is comparable to MMBT5401LT1G, MMBT5401-7-F, etc., while providing more competitive pricing and flexible lead times for volume production.
⚡ Why choose us as your MMBT5401 supplier?
- Full range of SOT-23 PNP/NPN small signal transistors
- Stable production capacity
- Pre-shipment testing
- Fast delivery for OEM/EMS customers
- Bulk purchase discounts
❓ FAQs
1. What are the applications of the MMBT5401?
It is used in high-voltage amplification, switching, and general-purpose small-signal circuits in consumer electronics, power supplies, and industrial control systems.
2. Is the MMBT5401 the same as the 2N5401?\
Not exactly the same. The MMBT5401 and 2N5401 have similar electrical characteristics, but the MMBT5401 is in an SOT-23 SMD package, while the 2N5401 is in a TO-92 through-hole package.
3. What is the pin arrangement of the MMBT5401?
Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.
4. What are the equivalent devices of the MMBT5401?
Common equivalent devices include MMBT5401LT1G, MMBT5401-7-F, and 2N5401.
5. Is MMBT5401 suitable for high-voltage circuits?
Yes. With a −150V Vceo rating, it is well-suited for high-voltage small-signal amplification and switching applications.
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