Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

onsemi MPSL51_D75Z

Name: MPSL51_D75Z
Brand: onsemi
SKU: MPSL51_D75Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MPSL51_D75Z

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: MPSL51_D75Z.pdf

Description:: TRANS PNP 100V 0.2A TO-92-3

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,414

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MPSL51_D75Z from Fairchild Semiconductor is a PNP general-purpose amplifier and switch in TO-92 package, rated for 100 V V_CEO, 200 mA I_C, and 625 mW P_D, designed for high-voltage linear amplification and switching in industrial control and power management circuits.

For engineers reviewing the MPSL51_D75Z datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO/V_CBO breakdown voltage matching, h_FE range (40–250), saturation voltage at defined I_C/I_B, thermal resistance (R_θJA = 200 °C/W), and TO-92 lead configuration per D75Z tape-and-reel ordering code.

Technical Context

The MPSL51_D75Z implements a silicon PNP bipolar junction transistor structure optimized for general-purpose amplification and saturated switching. It features a 100 V collector-emitter breakdown rating and supports continuous collector current up to 200 mA with DC current gain spanning 40 to 250 at V_CE = 5.0 V and I_C = 50 mA.

Its small-signal performance includes f_T = 60 MHz and h_fe = 20 at I_C = 1.0 mA, V_CE = 10 V, and 1 kHz, while output capacitance Cob is 8.0 pF at V_CB = 10 V and 1 MHz - confirming suitability for medium-frequency analog and switching applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - maximum safe collector-emitter voltage before breakdown under open-base conditions
I_C (max)	200 mA - continuous collector current limit defining usable load drive capability
P_D	625 mW - total power dissipation at 25°C ambient, derating 5.0 mW/°C above that temperature
h_FE	40–250 - DC current gain range at V_CE = 5.0 V, I_C = 50 mA, critical for bias stability in amplifier stages
V_CE(sat)	0.25–0.3 V - low saturation voltage at I_C = 10–50 mA / I_B = 1–5 mA, minimizing conduction loss in switch mode
f_T	60 MHz - transition frequency indicating usable bandwidth for small-signal amplification
R_θJA	200 °C/W - junction-to-ambient thermal resistance in free-air, defining temperature rise per watt dissipated

Pinout & Package

Package: TO-92 plastic through-hole package with straight leads, no lead clip, compliant with Proelectron series mechanical standards (PKG 92). D75Z denotes radial ammo packaging with collector as first wire off, flat side on top, and adhesive tape on top side.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current sink terminal	Reference node for base-emitter junction; connects to higher potential in PNP operation
Base (B)	Control input	Modulates collector current via forward-biased B-E junction; requires current-limited drive
Collector (C)	Current source terminal	Delivers amplified/saturated current to load; connected to most negative potential in circuit

Key Features

Feature	Design Value
High-voltage PNP architecture	100 V V_CEO/V_CBO enables use in >60 V supply rails and relay drivers without external clamping
Wide h_FE spread	40–250 gain range supports both precision biasing and robust switching across production lots
Low V_CE(sat)	0.25 V typical at I_C = 10 mA/I_B = 1 mA reduces power loss and self-heating in saturated switch applications
TO-92 mechanical standardization	Compatible with legacy PCB footprints and automated insertion equipment for cost-effective manufacturing
60 MHz f_T	Supports audio-frequency amplification and fast digital switching up to ~10 MHz with adequate gain margin

Applications

Industrial Relay Driver	Linear Voltage Regulator Pass Element
Use Scenario: Driving 24–48 V DC relays in PLC I/O modules where logic-level microcontrollers require current gain and voltage isolation. IC Role / Device Role / Timing Role: PNP switch operating in saturation to sink relay coil current through emitter to ground. Use Value: 100 V V_CEO withstands inductive kickback; 0.25 V V_CE(sat) minimizes heat generation during sustained coil energization.	Use Scenario: Serving as the pass transistor in adjustable linear regulators delivering up to 150 mA at 5–12 V outputs. IC Role / Device Role / Timing Role: Series-pass element controlled by error amplifier feedback loop to regulate output voltage. Use Value: 200 mA I_C rating and 625 mW P_D support moderate load currents with acceptable thermal margin in TO-92.
High-Side Load Switch	Discrete Op-Amp Input Stage
Use Scenario: Enabling/disabling 12–24 V loads (e.g., sensors, LEDs) from microcontroller GPIO pins using high-side configuration. IC Role / Device Role / Timing Role: PNP configured as emitter-follower to translate logic-high signal into load-enable voltage. Use Value: V_EBO = 4.0 V ensures compatibility with 3.3 V/5 V logic; h_FE ≥ 40 guarantees sufficient drive margin.	Use Scenario: Forming the differential pair input stage of discrete instrumentation amplifiers requiring matched PNP transistors. IC Role / Device Role / Timing Role: Active load and gain-setting element in high-input-impedance, low-noise front-end topology. Use Value: f_T = 60 MHz and Cob = 8.0 pF enable stable operation up to 100 kHz with minimal phase shift and capacitive loading.

Industrial Relay Driver

Linear Voltage Regulator Pass Element

Use Scenario: Driving 24–48 V DC relays in PLC I/O modules where logic-level microcontrollers require current gain and voltage isolation.

IC Role / Device Role / Timing Role: PNP switch operating in saturation to sink relay coil current through emitter to ground.

Use Value: 100 V V_CEO withstands inductive kickback; 0.25 V V_CE(sat) minimizes heat generation during sustained coil energization.

Use Scenario: Serving as the pass transistor in adjustable linear regulators delivering up to 150 mA at 5–12 V outputs.

IC Role / Device Role / Timing Role: Series-pass element controlled by error amplifier feedback loop to regulate output voltage.

Use Value: 200 mA I_C rating and 625 mW P_D support moderate load currents with acceptable thermal margin in TO-92.

High-Side Load Switch

Discrete Op-Amp Input Stage

Use Scenario: Enabling/disabling 12–24 V loads (e.g., sensors, LEDs) from microcontroller GPIO pins using high-side configuration.

IC Role / Device Role / Timing Role: PNP configured as emitter-follower to translate logic-high signal into load-enable voltage.

Use Value: V_EBO = 4.0 V ensures compatibility with 3.3 V/5 V logic; h_FE ≥ 40 guarantees sufficient drive margin.

Use Scenario: Forming the differential pair input stage of discrete instrumentation amplifiers requiring matched PNP transistors.

IC Role / Device Role / Timing Role: Active load and gain-setting element in high-input-impedance, low-noise front-end topology.

Use Value: f_T = 60 MHz and Cob = 8.0 pF enable stable operation up to 100 kHz with minimal phase shift and capacitive loading.

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
2N5401	Identical absolute max ratings and electrical characteristics per Fairchild documentation; same Process 74 fabrication	No functional difference; used interchangeably in all documented designs	Select 2N5401 when standard TO-92 reel or bulk packaging is preferred over D75Z-specific ammo format
MPSA92	Same V_CEO/V_CBO = 300 V, higher f_T = 50 MHz, but h_FE min = 50 - tighter gain distribution	Better suited for higher-voltage switching (>150 V) and faster switching transitions	Choose MPSA92 only if system requires >100 V breakdown margin or improved dynamic response; not drop-in for MPSL51_D75Z footprint

Compared with 2N5401 and MPSA92, the MPSL51_D75Z offers identical electrical behavior to 2N5401 with D75Z-specific packaging for radial ammo feed, while differing from MPSA92 in breakdown rating, gain consistency, and intended voltage class - making it optimal for cost-sensitive 100 V industrial switching where packaging automation is prioritized.

Availability

MPSL51_D75Z is available at Aetrix Electronics and suitable for industrial relay drivers, linear regulator pass elements, high-side load switches, and discrete op-amp input stages requiring stable component supply and TO-92-compatible manufacturing flow.

Supply support for MPSL51_D75Z 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.

The MPSL51_D75Z belongs to Fairchild's legacy PNP general-purpose transistor product line, engineered for cost-effective, high-reliability amplification and switching in industrial control, power supplies, and interface circuits.

FAQ

What is the pin configuration of MPSL51_D75Z in its D75Z packaging?

The MPSL51_D75Z uses TO-92 radial ammo packaging per ordering code D75Z, where the first wire off is the collector, the flat side of the transistor is oriented on top, and the adhesive tape is applied to the top side. This differs from D74Z (first wire = emitter, flat on top) and standard bulk variants, requiring correct orientation during automated placement.

Is MPSL51_D75Z electrically identical to 2N5401?

Yes - the MPSL51_D75Z shares identical absolute maximum ratings, thermal characteristics, and electrical specifications with the 2N5401, including V_CEO = 100 V, I_C = 200 mA, h_FE = 40–250, and f_T = 60 MHz. Both are fabricated on Fairchild's Process 74 and are functionally interchangeable in circuit design.

What is the maximum power dissipation of MPSL51_D75Z at 75°C ambient?

The MPSL51_D75Z has a base P_D of 625 mW at 25°C, derating linearly at 5.0 mW/°C above that temperature. At 75°C ambient, allowable dissipation is 625 mW − (50°C × 5.0 mW/°C) = 375 mW - a critical constraint for thermal design in enclosed industrial enclosures.

Can MPSL51_D75Z be used as a direct replacement for MPSA92?

No - while both are high-voltage PNP transistors, MPSL51_D75Z has V_CEO = 100 V versus MPSA92's 300 V, and its h_FE minimum is lower (40 vs. 50). Substituting MPSL51_D75Z for MPSA92 in >100 V applications risks breakdown; in precision gain-critical circuits, the wider h_FE spread may affect bias stability.

What does the "D75Z" suffix indicate for MPSL51_D75Z?

The "D75Z" suffix identifies the specific tape-and-reel packaging variant: radial ammo format (not reel), 2000 units per box, with collector as first wire off, flat side on top, and adhesive tape on top side. It does not denote electrical differentiation - all MPSL51_D75Z units share identical semiconductor die and specifications.

MPSL51_D75Z Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

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

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 200 mA

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 5mA, 50mA

Current - Collector Cutoff (Max):: 1µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 40 @ 50mA, 5V

Power - Max:: 625 mW

Frequency - Transition:: 60MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

MPSL51_D75Z FAQ

1.How can I place an order for MPSL51_D75Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPSL51_D75Z 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 MPSL51_D75Z reliable?

The price and inventory of MPSL51_D75Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSL51_D75Z is usually 5 days.

3.What payment methods are accepted for MPSL51_D75Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSL51_D75Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPSL51_D75Z?

MPSL51_D75Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPSL51_D75Z 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 MPSL51_D75Z?

For technical support, including MPSL51_D75Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSL51_D75Z requirements.

6.How does Aetrix verify that MPSL51_D75Z is sourced from the original manufacturer or authorized distributors?

All MPSL51_D75Z 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 MPSL51_D75Z meets industry standards.

7.What is the process for return or replacement of MPSL51_D75Z?

All MPSL51_D75Z units undergo pre-shipment inspection (PSI). If there is an issue with MPSL51_D75Z, 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 MPSL51_D75Z part is unused and in its original packaging.

Return procedure for MPSL51_D75Z:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…