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

onsemi MPS6534

Name: MPS6534
Brand: onsemi
SKU: MPS6534
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPS6534

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: MPS6534.pdf

Description:: TRANS PNP 40V 0.8A TO-92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPS6534 from Fairchild Semiconductor is a PNP general-purpose bipolar junction transistor designed for amplification and switching applications with continuous collector current up to 800 mA and V_CEO = 40 V. It operates across –55°C to +150°C, features h_FE = 60–270 at IC = 10–500 mA, and is commonly used in low-voltage power switching and signal inversion circuits.

For engineers reviewing the MPS6534 datasheet, pinout, applications, or equivalent options, key selection criteria include its TO-92 package compatibility, PNP polarity, V_CEO/V_CBO = 40 V rating, I_C = 800 mA capability, and thermal resistance R_θJA = 200°C/W - all critical for discrete amplifier and switch design in industrial control and power management systems.

Technical Context

The MPS6534 is a silicon PNP BJT fabricated using Fairchild's Process 63, optimized for general-purpose linear amplification and saturated switching. Its DC current gain (h_FE) varies from 60 at I_C = 10 mA to 50 at I_C = 500 mA, with V_CE(sat) = 0.3 V and V_BE(sat) = 1.0 V under I_C = 100 mA / I_B = 10 mA conditions.

It exhibits low output capacitance (C_ob = 6.0 pF at V_CB = 10 V), enabling moderate-frequency operation, and supports stable performance across –55°C to +150°C junction temperature range. Absolute maximum ratings are defined with T_J = 150°C and derating applied above 25°C ambient.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum safe collector-emitter voltage before breakdown; defines usable supply headroom in PNP switch configurations.
I_C (continuous)	800 mA - Continuous collector current handling; supports medium-power load switching without forced cooling.
h_FE	60–270 - DC current gain range across operating points; enables predictable base drive sizing for both linear and saturated operation.
V_CE(sat)	0.3 V - Low saturation voltage at I_C = 100 mA / I_B = 10 mA; minimizes conduction loss in switching applications.
R_θJA	200 °C/W - Junction-to-ambient thermal resistance in free-air; determines required heatsinking for sustained 800 mA operation.
T_J range	–55°C to +150°C - Wide operating junction temperature range; suitable for industrial and automotive under-hood environments.

Pinout & Package

Package: TO-92 (3-lead plastic case, straight lead configuration, no lead clip). Standard orientation: flat side facing viewer, leads down; emitter (E), base (B), collector (C) from left to right per Fairchild Figure 1.0.

Pin/Terminal	Circuit Role	Design Meaning
E (Emitter)	Current source terminal for PNP device	Connected to higher potential rail in common-emitter switches; sets reference for base bias network.
B (Base)	Control input for minority-carrier injection	Receives forward-biased current to turn on transistor; requires ~1.0 V V_BE(sat) for full conduction.
C (Collector)	Current sink terminal	Connected to load and ground return path; carries full switched current with <0.3 V drop in saturation.

Key Features

Feature	Design Value
High I_C capability	800 mA continuous collector current supports medium-power relay drivers and LED arrays without external gain stages.
Low V_CE(sat)	0.3 V saturation voltage reduces power dissipation in high-duty-cycle switching applications.
Wide temperature range	–55°C to +150°C operation enables use in uncontrolled industrial enclosures and automotive engine compartments.
Low output capacitance	6.0 pF Cob allows stable gain up to several tens of MHz in small-signal amplifier designs.

Applications

Relay Driver Circuit	DC Motor Direction Control
Use Scenario: Driving 12 V, 300 mA electromagnetic relay coil in PLC I/O modules. IC Role / Device Role / Timing Role: PNP switch providing high-side current sourcing to energize relay coil when base is pulled low. Use Value: V_CEO = 40 V ensures margin against inductive kickback; 800 mA I_C rating accommodates relay surge currents.	Use Scenario: Bidirectional H-bridge half-bridge leg for 24 V brushed DC motor control in HVAC actuators. IC Role / Device Role / Timing Role: High-side PNP switch enabling forward motor rotation when paired with NPN low-side complement. Use Value: V_CE(sat) = 0.3 V minimizes heat generation during continuous PWM operation at 20 kHz.
Linear Voltage Regulator Pass Element	Signal-Level Inverter Stage
Use Scenario: Series pass transistor in adjustable 5–15 V linear regulator supplying analog sensor circuitry. IC Role / Device Role / Timing Role: PNP emitter-follower configured as current-amplified error amplifier output stage. Use Value: h_FE ≥ 60 at 10 mA ensures stable loop gain; R_θJA = 200°C/W permits operation without heatsink at ≤300 mW dissipation.	Use Scenario: Digital logic level translation between 3.3 V microcontroller GPIO and 5 V peripheral enable lines. IC Role / Device Role / Timing Role: Saturated PNP inverter converting active-low MCU output to active-high enable signal. Use Value: Fast turn-on/off due to low C_ob = 6.0 pF supports clean edge transitions up to 10 MHz.

Relay Driver Circuit

DC Motor Direction Control

Use Scenario: Driving 12 V, 300 mA electromagnetic relay coil in PLC I/O modules.

IC Role / Device Role / Timing Role: PNP switch providing high-side current sourcing to energize relay coil when base is pulled low.

Use Value: V_CEO = 40 V ensures margin against inductive kickback; 800 mA I_C rating accommodates relay surge currents.

Use Scenario: Bidirectional H-bridge half-bridge leg for 24 V brushed DC motor control in HVAC actuators.

IC Role / Device Role / Timing Role: High-side PNP switch enabling forward motor rotation when paired with NPN low-side complement.

Use Value: V_CE(sat) = 0.3 V minimizes heat generation during continuous PWM operation at 20 kHz.

Linear Voltage Regulator Pass Element

Signal-Level Inverter Stage

Use Scenario: Series pass transistor in adjustable 5–15 V linear regulator supplying analog sensor circuitry.

IC Role / Device Role / Timing Role: PNP emitter-follower configured as current-amplified error amplifier output stage.

Use Value: h_FE ≥ 60 at 10 mA ensures stable loop gain; R_θJA = 200°C/W permits operation without heatsink at ≤300 mW dissipation.

Use Scenario: Digital logic level translation between 3.3 V microcontroller GPIO and 5 V peripheral enable lines.

IC Role / Device Role / Timing Role: Saturated PNP inverter converting active-low MCU output to active-high enable signal.

Use Value: Fast turn-on/off due to low C_ob = 6.0 pF supports clean edge transitions up to 10 MHz.

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
PN2907A	Same Process 63 origin; identical V_CEO/I_C ratings but h_FE min = 100 @ I_C = 150 mA (vs. 90 for MPS6534).	Slightly higher guaranteed gain at mid-current; otherwise functionally interchangeable in most switching roles.	Select PN2907A where tighter h_FE consistency is required; MPS6534 remains optimal for cost-sensitive volume production.
MMBT6534	SOT-23 surface-mount variant; same electrical specs but R_θJA = 300°C/W (higher thermal resistance) and I_C = 500 mA (derated).	Requires PCB layout change; unsuitable for >500 mA loads or high-ambient-temperature through-hole designs.	Choose MMBT6534 only for space-constrained PCBs where reflow assembly is mandatory and current demand stays ≤500 mA.

Compared with PN2907A and MMBT6534, the MPS6534 offers the best balance of legacy TO-92 mechanical compatibility, 800 mA current headroom, and proven thermal performance in free-air mounting - making it preferred for industrial control boards and repair replacements where footprint and reliability are prioritized over miniaturization.

Availability

MPS6534 is available at Aetrix Electronics and suitable for relay driver circuits, DC motor control stages, linear regulator pass elements, and signal-level inverter designs requiring stable component supply and long-term obsolescence support.

Supply support for MPS6534 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 manufacturer specializing in power management, analog, and discrete devices before its acquisition by ON Semiconductor in 2016.

The MPS6534 belongs to Fairchild's legacy general-purpose bipolar transistor family, engineered for robustness and ease of use in industrial and consumer power-switching applications where TO-92 form factor and proven reliability are essential.

FAQ

What is the maximum continuous collector current rating for the MPS6534?

The MPS6534 has a maximum continuous collector current (I_C) rating of 800 mA at T_A = 25°C. This rating decreases with rising ambient temperature due to its 5.0 mW/°C power derating slope and 625 mW total device dissipation limit. For sustained operation above 25°C, thermal design must ensure junction temperature remains ≤150°C. The MPS6534 datasheet specifies this value under steady-state DC conditions.

Is the MPS6534 pin-compatible with the PN2907A?

Yes, the MPS6534 is pin-compatible with the PN2907A in the TO-92 package, sharing identical lead assignment (E-B-C left-to-right with flat side facing viewer) and mechanical dimensions. Both devices originate from Fairchild's Process 63 and share matching absolute maximum ratings. The MPS6534 datasheet explicitly references PN2907A for characteristics, confirming functional and physical interchangeability in existing designs.

What is the typical V_CE(sat) of the MPS6534 under standard test conditions?

The typical V_CE(sat) of the MPS6534 is 0.3 V when tested at I_C = 100 mA and I_B = 10 mA. This value represents the voltage drop between collector and emitter in hard saturation, directly impacting conduction losses in switching applications. The datasheet specifies this parameter with a maximum limit of 0.3 V, indicating consistent low-loss performance across production lots of the MPS6534.

Does the MPS6534 support operation at elevated temperatures?

Yes, the MPS6534 supports operation from –55°C to +150°C junction temperature. Its thermal resistance values (R_θJA = 200°C/W, R_θJC = 83.3°C/W) and 150°C maximum T_J rating allow reliable use in industrial environments. When mounted in free air, the MPS6534 can sustain 800 mA continuously only if ambient temperature remains ≤75°C - verified via the 5.0 mW/°C derating curve in the official MPS6534 datasheet.

What package type is used for the standard MPS6534 offering?

The standard MPS6534 is supplied in the TO-92 plastic package with straight leads and no lead clip, per Fairchild's packaging documentation. This through-hole package features three terminals (Emitter, Base, Collector) arranged left-to-right when viewing the flat side with leads pointing downward. Bulk, tape-and-reel (D26Z/D27Z), and ammo pack options are available, all conforming to the JEDEC TO-92 outline and dimensional spec.

MPS6534 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 800 mA

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 50nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 90 @ 100mA, 1V

Power - Max:: 625 mW

Frequency - Transition:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

MPS6534 FAQ

1.How can I place an order for MPS6534 through Aetrix?

Please submit a Request for Quotation (RFQ) for MPS6534 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 MPS6534 reliable?

The price and inventory of MPS6534 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS6534 is usually 5 days.

3.What payment methods are accepted for MPS6534?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS6534 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPS6534?

MPS6534 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPS6534 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 MPS6534?

For technical support, including MPS6534 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS6534 requirements.

6.How does Aetrix verify that MPS6534 is sourced from the original manufacturer or authorized distributors?

All MPS6534 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 MPS6534 meets industry standards.

7.What is the process for return or replacement of MPS6534?

All MPS6534 units undergo pre-shipment inspection (PSI). If there is an issue with MPS6534, 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 MPS6534 part is unused and in its original packaging.

Return procedure for MPS6534:

1.Submit a request within 90 days.

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

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