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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi 2N5400_D26Z

Name: 2N5400_D26Z
Brand: onsemi
SKU: 2N5400_D26Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2N5400_D26Z

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: 2N5400_D26Z.pdf

Description:: TRANS PNP 120V 0.6A TO-92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2N5400_D26Z from Fairchild Semiconductor is a PNP bipolar junction transistor designed for general-purpose amplification and high-voltage switching applications, featuring V_CEO = 120 V, I_C = 600 mA, h_FE = 30–180 (at I_C = 1–50 mA), f_T = 100–400 MHz, and TO-92 package. It operates across –55°C to +150°C and supports linear amplifier stages and saturated-switching circuits in industrial control and power management systems.

For engineers reviewing the 2N5400_D26Z datasheet, pinout, applications, or equivalent options, key selection considerations include its PNP polarity, 120 V collector-emitter breakdown rating, thermal resistance of 200°C/W (junction-to-ambient), saturation voltage under defined drive conditions, and compatibility with through-hole TO-92 PCB layouts.

Technical Context

The 2N5400_D26Z is a silicon PNP BJT optimized for medium-power linear amplification and switching where high off-state voltage blocking is required. Its design emphasizes stable DC current gain across collector currents from 1 mA to 50 mA and low noise figure (8.0 dB) in audio-frequency small-signal operation.

It employs a planar epitaxial structure with specified thermal limits (T_J ≤ 150°C), derated power dissipation (625 mW at 25°C, decreasing by 5.0 mW/°C above), and validated junction-to-case (83.3°C/W) and junction-to-ambient (200°C/W) thermal resistances - critical for thermal design in compact enclosures.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	120 V - Maximum continuous collector-emitter voltage before breakdown; enables use in 100 V rail switching or high-side PNP driver stages.
I_C (max)	600 mA - Absolute maximum DC collector current; defines upper limit for sustained load switching or amplifier output stage bias.
h_FE	30–180 - DC current gain range at V_CE = 5 V; supports predictable base drive sizing across production lots and temperature extremes.
f_T	100–400 MHz - Current gain–bandwidth product at I_C = 10 mA, V_CE = 10 V; indicates usable RF amplification up to ~100 MHz with gain margin.
P_D	625 mW at 25°C - Total device power dissipation; requires heatsinking or layout derating above ambient 25°C per 5.0 mW/°C slope.
R_θJA	200°C/W - Junction-to-ambient thermal resistance in free-air; determines temperature rise under given power load without heatsink.

Pinout & Package

2N5400_D26Z is housed in a standard TO-92 plastic package with lead-forming option D26Z (tape-and-reel, emitter-first orientation, flat side down). The device uses a three-terminal PNP configuration with Collector, Base, and Emitter leads arranged in linear order.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current source terminal for PNP operation	Connected to highest potential node in circuit; first lead in D26Z tape orientation; sets reference for base-emitter forward bias.
Base (B)	Control electrode for carrier injection	Receives reverse-biased current to turn on transistor; requires current-limiting resistor in most switch designs.
Collector (C)	Current sink terminal	Connected to load and supply return path; withstands up to 120 V when open-circuit relative to emitter.

Key Features

Feature	Design Value
High V_CEO rating	120 V - Allows direct interface with 100 V industrial bus rails or legacy telecom line drivers without external clamping.
Low noise figure	8.0 dB at 10 Hz–15.7 kHz - Supports high-fidelity preamplifier stages in sensor signal conditioning where SNR preservation is critical.
Wide operating temperature	–55°C to +150°C - Enables deployment in under-hood automotive modules or outdoor industrial controllers without derating.
Controlled h_FE spread	30–180 at I_C = 1–50 mA - Permits consistent bias network design across production batches without individual trimming.
TO-92 mechanical standardization	D26Z tape-and-reel packaging - Ensures compatibility with automated pick-and-place equipment using standard TO-92 feeders and vision alignment.

Applications

Industrial Relay Drivers	Linear Voltage Regulator Pass Transistors
Use Scenario: Driving 24–48 V DC relays in programmable logic controller (PLC) output modules with opto-isolated inputs. IC Role / Device Role / Timing Role: High-voltage PNP switch sinking relay coil current while blocking reverse EMF spikes. Use Value: 120 V V_CEO rating prevents breakdown during inductive kickback; 600 mA I_C supports common 400 mA relay coils with safety margin.	Use Scenario: Serving as the series pass element in adjustable positive linear regulators delivering up to 500 mA at 5–12 V outputs. IC Role / Device Role / Timing Role: PNP-based pass transistor controlled by error amplifier feedback loop to regulate output voltage. Use Value: Stable h_FE across load current ensures predictable loop gain; 150°C T_J rating accommodates thermal stress during dropout operation.
Audio Preamp Stages	High-Voltage Level Shifters
Use Scenario: Low-noise input stage in microphone preamplifiers or piezoelectric sensor interfaces requiring <10 dB noise figure. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier biased for optimal noise performance at 250 µA I_C. Use Value: 8.0 dB noise figure at 10 Hz–15.7 kHz meets professional audio front-end requirements; f_T > 100 MHz provides headroom for bandwidth limiting.	Use Scenario: Shifting TTL/CMOS logic levels to interface with 100 V analog monitoring circuits in power supply supervision. IC Role / Device Role / Timing Role: Inverting level translator using emitter-follower or common-base configuration for voltage translation. Use Value: 130 V V_CBO rating isolates low-voltage logic from high-voltage domains; TO-92 creepage distance satisfies IPC-2221 Class B spacing.

Industrial Relay Drivers

Linear Voltage Regulator Pass Transistors

Use Scenario: Driving 24–48 V DC relays in programmable logic controller (PLC) output modules with opto-isolated inputs.

IC Role / Device Role / Timing Role: High-voltage PNP switch sinking relay coil current while blocking reverse EMF spikes.

Use Value: 120 V V_CEO rating prevents breakdown during inductive kickback; 600 mA I_C supports common 400 mA relay coils with safety margin.

Use Scenario: Serving as the series pass element in adjustable positive linear regulators delivering up to 500 mA at 5–12 V outputs.

IC Role / Device Role / Timing Role: PNP-based pass transistor controlled by error amplifier feedback loop to regulate output voltage.

Use Value: Stable h_FE across load current ensures predictable loop gain; 150°C T_J rating accommodates thermal stress during dropout operation.

Audio Preamp Stages

High-Voltage Level Shifters

Use Scenario: Low-noise input stage in microphone preamplifiers or piezoelectric sensor interfaces requiring <10 dB noise figure.

IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier biased for optimal noise performance at 250 µA I_C.

Use Value: 8.0 dB noise figure at 10 Hz–15.7 kHz meets professional audio front-end requirements; f_T > 100 MHz provides headroom for bandwidth limiting.

Use Scenario: Shifting TTL/CMOS logic levels to interface with 100 V analog monitoring circuits in power supply supervision.

IC Role / Device Role / Timing Role: Inverting level translator using emitter-follower or common-base configuration for voltage translation.

Use Value: 130 V V_CBO rating isolates low-voltage logic from high-voltage domains; TO-92 creepage distance satisfies IPC-2221 Class B spacing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general-purpose amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPSA92	V_CEO = 300 V, h_FE = 25–100, R_θJA = 200°C/W, same TO-92 package	Higher voltage capability but lower gain consistency; suitable for >150 V flyback snubbers or HV gate drivers	Select MPSA92 when absolute maximum V_CEO > 120 V is required; verify base drive sufficiency due to lower h_FE floor.
BC557B	V_CEO = 45 V, h_FE = 200–450, P_D = 500 mW, TO-92 package	Lower voltage rating but higher gain and tighter h_FE binning; optimized for low-current signal amplification	Choose BC557B for battery-powered sensor nodes or low-voltage logic interfacing where 45 V ceiling is acceptable.

Compared with 2N5400_D26Z, MPSA92 offers superior voltage blocking but reduced DC gain stability, while BC557B delivers higher precision amplification at lower voltages - making 2N5400_D26Z the balanced choice for 100 V-class industrial switching and mid-bandwidth analog stages.

Availability

2N5400_D26Z is available at Aetrix Electronics and suitable for industrial relay drivers, linear voltage regulator pass elements, audio preamplifier stages, and high-voltage level shifters requiring stable component supply, long-term obsolescence planning, and traceable lot-controlled sourcing.

Supply support for 2N5400_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 was a U.S.-based semiconductor company specializing in power management, analog, and discrete components before its acquisition by ON Semiconductor in 2016. Its legacy products remain widely deployed in industrial and automotive systems.

The 2N5400_D26Z belongs to Fairchild's general-purpose bipolar transistor family, engineered for robustness in high-voltage switching and linear amplification roles across industrial automation, power supplies, and instrumentation.

FAQ

What is the pin configuration of the 2N5400_D26Z?

The 2N5400_D26Z uses a TO-92 package with emitter (E), base (B), and collector (C) leads in left-to-right order when viewing the flat side of the package with leads pointing downward. Per D26Z tape specification, the first lead exiting the reel is the emitter. This configuration is confirmed in Fairchild's TO-92 packaging documentation and matches standard PNP pinout conventions for this family.

Does the 2N5400_D26Z support surface-mount assembly?

No - the 2N5400_D26Z is a through-hole TO-92 device and is not compatible with SMT reflow processes. Its D26Z designation refers to tape-and-reel packaging for automated insertion, not surface-mount capability. For SMT equivalents, consider SOT-23-packaged PNP transistors like the MMBT5401, which shares similar electrical specs but different thermal and mechanical behavior.

What is the maximum safe operating temperature for the 2N5400_D26Z?

The 2N5400_D26Z has a maximum junction temperature (T_J) of +150°C and an operating junction temperature range of –55°C to +150°C. Ambient temperature must be limited to ensure T_J does not exceed this value - for example, at 625 mW dissipation, ambient must stay below 25°C unless heatsinking reduces R_θJA. Derating begins at 25°C at 5.0 mW/°C.

Can the 2N5400_D26Z replace the 2N5401 in a circuit?

The 2N5400_D26Z and 2N5401 are complementary NPN devices with identical package and similar ratings, but they are not interchangeable due to opposite polarity. Substituting 2N5400_D26Z for 2N5401 would invert circuit functionality. For PNP–NPN pair matching, use 2N5400_D26Z with 2N5401 only in complementary configurations - never as direct replacements.

Is the 2N5400_D26Z RoHS compliant?

Yes - the 2N5400_D26Z manufactured under Fairchild's Rev A/B specifications and later conforms to RoHS Directive 2011/65/EU. Lead-free finish and halogen-free molding compound are standard for D26Z tape-and-reel variants produced after 2006. Compliance documentation is available via ON Semiconductor's product change notices for legacy Fairchild parts.

2N5400_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):: 600 mA

Voltage - Collector Emitter Breakdown (Max):: 120 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 5mA, 50mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 40 @ 10mA, 5V

Power - Max:: 625 mW

Frequency - Transition:: 400MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

2N5400_D26Z FAQ

1.How can I place an order for 2N5400_D26Z through Aetrix?

Please submit a Request for Quotation (RFQ) for 2N5400_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 2N5400_D26Z reliable?

The price and inventory of 2N5400_D26Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2N5400_D26Z is usually 5 days.

3.What payment methods are accepted for 2N5400_D26Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2N5400_D26Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2N5400_D26Z?

2N5400_D26Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2N5400_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 2N5400_D26Z?

For technical support, including 2N5400_D26Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2N5400_D26Z requirements.

6.How does Aetrix verify that 2N5400_D26Z is sourced from the original manufacturer or authorized distributors?

All 2N5400_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 2N5400_D26Z meets industry standards.

7.What is the process for return or replacement of 2N5400_D26Z?

All 2N5400_D26Z units undergo pre-shipment inspection (PSI). If there is an issue with 2N5400_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 2N5400_D26Z part is unused and in its original packaging.

Return procedure for 2N5400_D26Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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