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onsemi MPSA92_D26Z
- Part No.:
- MPSA92_D26Z
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
MPSA92_D26Z.pdf
- Description:
- TRANS PNP 300V 0.5A TO-92-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,603
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Product details
Overview
MPSA92_D26Z from Fairchild Semiconductor is a PNP high-voltage general-purpose amplifier transistor in TO-92 package, rated for 300 V VCEO, 500 mA IC, and 625 mW PD at 25°C, designed for high-voltage driver stages in industrial power supplies and relay interface circuits.
For engineers reviewing the MPSA92_D26Z datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, TO-92 terminal mapping, thermal derating data, and validated alternative transistors for high-voltage PNP switching and amplification roles.
Technical Context
This device operates as a silicon PNP bipolar junction transistor with negative-polarity voltage/current conventions, featuring 50 MHz fT, 6.0 pF Ccb at 20 V, and hFE = 25–40 across 1–30 mA IC. Its breakdown ratings (VCEO = VCBO = 300 V) support operation in flyback snubbers and HV bias networks.
Thermal design requires attention to RθJA = 200°C/W (TO-92 on FR-4), with linear derating of 5.0 mW/°C above 25°C. Junction temperature must remain ≤150°C under steady-state conditions per Fairchild's absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 300 V - Enables use in 240 VAC line-referenced circuits and HV collector loads without breakdown. |
| IC (cont.) | 500 mA - Supports medium-current switching of relays, solenoids, and small motors. |
| PD @ 25°C | 625 mW - Sets maximum continuous dissipation before thermal derating begins. |
| hFE | 25–40 @ IC = 1–30 mA - Provides predictable DC gain for base-driven switching with moderate drive requirements. |
| fT | 50 MHz - Sufficient for audio-frequency amplification and low-speed HV switching up to ~1–2 MHz. |
| VCE(sat) | 0.5 V @ IC = 20 mA, IB = 2 mA - Ensures low conduction loss in saturated switch applications. |
| RθJA | 200°C/W - Requires heatsinking or layout-aware copper pour for sustained >200 mW operation. |
Pinout & Package
Package: TO-92 (standard straight-lead, no lead clip, EOL code D26Z). Lead configuration follows JEDEC TO-92 outline: flat side facing viewer, leads down, left-to-right = Emitter (E), Base (B), Collector (C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E (Emitter) | Current source terminal for PNP operation | Connected to higher potential rail; base-emitter forward bias initiates conduction. |
| B (Base) | Control input for minority-carrier injection | Requires negative current relative to emitter to turn on; typical drive: -2 mA for 20 mA IC. |
| C (Collector) | High-voltage output terminal | Handles up to 300 V reverse bias; connected to load and supply return path in common-emitter configurations. |
Key Features
| Feature | Design Value |
|---|---|
| High VCEO/VCBO | 300 V rating enables direct interface with 240 VAC-derived rails and flyback transformer secondaries. |
| Low VCE(sat) | 0.5 V saturation voltage minimizes power loss and self-heating during on-state operation. |
| Stable hFE over temp | hFE maintains ≥25 from –40°C to +125°C, supporting reliable gain in industrial ambient conditions. |
| Low Ccb | 6.0 pF collector-base capacitance reduces Miller effect, improving switching speed in HV amplifier stages. |
| JEDEC TO-92 compatibility | Standard through-hole footprint allows drop-in replacement in legacy designs using MMBTA92 or PZTA92. |
Applications
| Relay Driver Stage | High-Voltage Bias Supply |
|---|---|
|
Use Scenario: Driving 12–24 VDC coil relays in programmable logic controllers with 240 VAC field-side isolation. IC Role / Device Role / Timing Role: PNP switch controlling relay coil current; operates in saturation with fixed base drive. Use Value: 300 V VCEO withstands inductive kickback; 0.5 V VCE(sat) limits coil power loss to <10 mW at 20 mA. |
Use Scenario: Generating stable negative bias for gate drivers in high-side IGBT modules fed from 300 V DC bus. IC Role / Device Role / Timing Role: Linear regulator pass element delivering –15 V @ 5 mA with local feedback. Use Value: 50 MHz fT and 6 pF Ccb ensure stability in closed-loop bias networks up to 100 kHz. |
| Flyback Snubber Network | Industrial Signal Isolation Interface |
|
Use Scenario: Clamping voltage spikes across transformer primary windings in offline SMPS designs. IC Role / Device Role / Timing Role: Fast-switching PNP clamp transistor triggered by RC-delayed base pulse. Use Value: 300 V breakdown and 50 MHz fT allow sub-microsecond response to 200 V transients without avalanche stress. |
Use Scenario: Level-shifting digital control signals between 3.3 V microcontrollers and 24 V PLC I/O modules. IC Role / Device Role / Timing Role: Inverting level translator with open-collector output referenced to 24 V rail. Use Value: 500 mA IC supports 20 mA sink capability for LED indicators and optocoupler inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-voltage amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBTA92 | SOT-23 package (vs TO-92); lower PD = 350 mW; same VCEO/IC/hFE specs. | Surface-mount only; unsuitable for through-hole prototyping or high-power dissipation without PCB copper. | Select MMBTA92 only when board space is constrained and thermal management via SMT pads is feasible. |
| PZTA92 | SOT-223 package; higher PD = 1000 mW; identical electrical specs but improved thermal performance (RθJA = 125°C/W). | Supports continuous 500 mA operation at elevated ambient temperatures where MPSA92_D26Z would require derating. | Choose PZTA92 for industrial environments >70°C ambient or when >625 mW dissipation is required. |
Compared with MMBTA92 and PZTA92, MPSA92_D26Z offers through-hole assembly compatibility and mid-range thermal capability-ideal for cost-sensitive, medium-power HV driver designs where manual rework or legacy TO-92 footprints are required.
Availability
MPSA92_D26Z is available at Aetrix Electronics and suitable for industrial power supplies, relay interface modules, and HV signal conditioning circuits requiring stable component supply and long-term obsolescence management.
Supply support for MPSA92_D26Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Fairchild Semiconductor (now part of ON Semiconductor) is a global designer of high-performance analog and discrete semiconductors, founded in 1957 and known for robust power management and signal-path components.
The MPSA92_D26Z belongs to Fairchild's general-purpose bipolar transistor family optimized for high-voltage industrial control, offering proven reliability in relay drivers, snubbers, and bias networks since the 1990s.
FAQ
What is the pin configuration of MPSA92_D26Z?
The MPSA92_D26Z uses standard TO-92 pinout: when viewing the flat side with leads pointing downward, the left-to-right order is Emitter (E), Base (B), Collector (C). This matches JEDEC TO-92 specification and ensures compatibility with sockets and PCB footprints designed for MMBTA92 or PZTA92 in TO-92 form factor.
Can MPSA92_D26Z replace MPSA42 in high-voltage applications?
No-MPSA92_D26Z is not a functional replacement for MPSA42. While both are PNP transistors, MPSA42 has VCEO = 300 V but IC = 500 mA and hFE = 40–120, whereas MPSA92_D26Z has identical VCEO and IC but lower hFE (25–40) and different saturation characteristics. Circuit validation is required before substitution.
What is the maximum operating temperature for MPSA92_D26Z?
The MPSA92_D26Z has a specified junction temperature range of –55°C to +150°C. At ambient temperatures above 25°C, power dissipation must be linearly derated at 5.0 mW/°C. For example, at 75°C ambient, maximum allowable PD drops to 375 mW to maintain TJ ≤ 150°C.
Is MPSA92_D26Z RoHS compliant?
Yes-MPSA92_D26Z manufactured under Fairchild's post-2006 production flow meets RoHS Directive 2011/65/EU requirements, with lead content below 0.1% by weight and full compliance documentation available upon request from Aetrix Electronics.
Does MPSA92_D26Z support pulsed operation beyond its DC ratings?
Yes-Fairchild specifies pulsed operation with pulse width ≤ 300 µs and duty cycle ≤ 2.0%. Under these conditions, peak IC may exceed 500 mA and VCEO may approach 300 V without degradation, provided average power remains within derated PD limits. Refer to Note 2 in the original datasheet for factory consultation on custom pulse profiles.
MPSA92_D26Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 300 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 2mA, 20mA
- Current - Collector Cutoff (Max):
- 250nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 25 @ 30mA, 10V
- Power - Max:
- 625 mW
- Frequency - Transition:
- 50MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
MPSA92_D26Z FAQ
1.How can I place an order for MPSA92_D26Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPSA92_D26Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPSA92_D26Z reliable?
The price and inventory of MPSA92_D26Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSA92_D26Z is usually 5 days.
3.What payment methods are accepted for MPSA92_D26Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSA92_D26Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPSA92_D26Z?
MPSA92_D26Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPSA92_D26Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPSA92_D26Z?
For technical support, including MPSA92_D26Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSA92_D26Z requirements.
6.How does Aetrix verify that MPSA92_D26Z is sourced from the original manufacturer or authorized distributors?
All MPSA92_D26Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPSA92_D26Z meets industry standards.
7.What is the process for return or replacement of MPSA92_D26Z?
All MPSA92_D26Z units undergo pre-shipment inspection (PSI). If there is an issue with MPSA92_D26Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPSA92_D26Z part is unused and in its original packaging.
Return procedure for MPSA92_D26Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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