SSM2210PZ Analog Devices Transistor BJT NPN (Dual-In-Line Packages) In Stock
The SSM2210PZ is a dual low-noise NPN bipolar transistor by Analog Devices in an 8-pin PDIP package. Key specs: 20 mA collector current, 40 V collector-emitter voltage, minimum hFE of 300 with built-in diode. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- SSM2210PZ Datasheet PDF
- Category
- Transistor BJT NPN
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual matched NPN transistors with minimum DC current gain (hFE) of 300 for low-distortion audio preamplifier stages
- Low-noise design optimized for high-gain audio front-end circuits requiring minimal input-referred voltage noise
- 40 V collector-emitter breakdown voltage with 20 mA collector current rating suitable for signal-level audio applications
- 8-pin PDIP package with built-in diode configuration simplifying differential input stage and ESD protection circuits
Applications
The SSM2210PZ is designed for low-noise audio preamplifier input stages, microphone amplifiers, and instrumentation amplifiers where dual matched NPN transistors with high current gain and low noise are required. It is commonly used in professional audio equipment, phono preamplifiers, and differential signal amplifiers where transistor matching minimizes noise and distortion in balanced audio signal chains.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | LOW NOISE |
| Collector Current-Max (IC) | 0.02A |
| Collector-Emitter Voltage-Max | 40V |
| Configuration | SEPARATE, 2 ELEMENTS WITH BUILT-IN DIODE |
| DC Current Gain-Min (hFE) | 300 |
| JEDEC-95 Code | MO-095AA |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Elements | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | NPN |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | DUAL |
| Transistor Application | AMPLIFIER |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 200MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SSM2210PZ:
suggested
Frequently Asked Questions
Why is the minimum hFE of 300 on SSM2210PZ important for low-noise audio preamplifier design?
A minimum DC current gain (hFE) of 300 on the SSM2210PZ allows the base bias current to remain very low, typically under 1 µA at 20 mA collector current. This reduces the thermal noise contribution from the base resistance and bias resistors in the preamplifier input stage, resulting in lower input-referred noise voltage and better noise figure in microphone and phono preamplifier circuits.
How does the dual matched transistor configuration of SSM2210PZ benefit differential audio input stages?
The SSM2210PZ contains 2 matched NPN transistors on the same die, ensuring closely matched VBE voltages (typically within 1 mV) and hFE values. In a differential pair input stage, this matching minimizes offset voltage and common-mode noise pickup, reducing distortion and hum in balanced microphone preamplifiers and instrumentation amplifiers operating at 20 mA maximum collector current.
At 40 V collector-emitter voltage, what signal levels can SSM2210PZ handle in a phono preamplifier stage?
With a 40 V collector-emitter breakdown voltage (VCEO), the SSM2210PZ can operate from supply rails up to approximately ±15 V in a phono preamplifier without risk of breakdown. At typical phono cartridge output levels of 1 mV to 10 mV and RIAA equalization gain of up to 40 dB, the transistor operates well within its 20 mA and 40 V ratings throughout the audio frequency band.
What advantage does the 8-pin PDIP package of SSM2210PZ offer for prototyping audio amplifier circuits?
The SSM2210PZ 8-pin PDIP package with 2.54 mm pin pitch fits directly into standard DIP sockets and breadboards, enabling rapid prototyping of dual-transistor audio circuits without soldering. The through-hole package provides robust mechanical connections in prototype audio amplifiers, allowing easy swapping and testing of different biasing conditions before committing to a surface-mount layout.
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Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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