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

onsemi MMBT2907-D87Z

Name: MMBT2907-D87Z
Brand: onsemi
SKU: MMBT2907-D87Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MMBT2907-D87Z

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: MMBT2907-D87Z.pdf

Description:: TRANS PNP 40V 0.8A SOT-23-3

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Product details

Overview

MMBT2907-D87Z from ON Semiconductor is a 60 V PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching in low-to-medium power circuits, with DC current gain (h_FE) of 100–300 at I_C = −150 mA, V_CE = −10 V, maximum continuous collector current of −800 mA, and ultra-fast switching performance (t_on ≤ 45 ns, t_off ≤ 100 ns). It is commonly used in discrete logic-level inverters, LED drivers, and load-switching stages in consumer and industrial control boards.

For engineers reviewing the MMBT2907-D87Z datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (SOT-23), confirmed terminal roles (Emitter-Base-Collector), real-world switching timing constraints, thermal derating data (2.8 mW/°C above 25°C), and validated alternatives for board-level redesign or supply continuity planning.

Technical Context

This PNP BJT operates in active, saturation, and cutoff regions with guaranteed breakdown voltages of −60 V (V_CEO, V_CBO) and −5.0 V (V_EBO). Its small-signal f_T ≥ 200 MHz enables use in RF-coupled preamplifier stages up to UHF frequencies when biased appropriately.

Thermal design is constrained by R_θJA = 357 °C/W on standard FR-4 PCBs, requiring careful layout for >200 mA operation. Saturation behavior is characterized at two drive levels: V_CE(sat) = −0.4 V @ I_C = −150 mA/I_B = −15 mA and −1.6 V @ I_C = −500 mA/I_B = −50 mA - critical for low-loss switch design.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V - Maximum safe collector-emitter voltage before avalanche; defines rail compatibility in negative-rail switching applications.
I_C (continuous)	−800 mA - Absolute max DC collector current; usable up to −500 mA with verified h_FE ≥ 50 and V_CE(sat) ≤ −1.6 V.
h_FE	100–300 - DC current gain range at I_C = −150 mA/V_CE = −10 V; determines base drive sizing for predictable saturation.
t_on/t_off	≤45 ns / ≤100 ns - Verified turn-on/turn-off times under specified test conditions; sets upper frequency limit for digital switching (~5–10 MHz square-wave capability).
P_D @ 25°C	350 mW - Total device dissipation limit on standard SOT-23 PCB land pattern; derates linearly at 2.8 mW/°C above ambient.
C_ob	8.0 pF @ V_CB = −10 V - Output capacitance affecting high-frequency gain roll-off and switching energy loss.

Pinout & Package

SOT-23 (TO-236) 3-lead surface-mount package with standardized JEDEC footprint (2.40 mm × 1.30 mm body, 0.95 mm height); thermally optimized for reflow soldering on 1-oz copper FR-4.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Connected to most positive potential in PNP configuration; carries full load current; requires low-impedance return path for stable biasing.
2 (Base)	Control input	Receives reverse-biased current to turn device on; requires current-limiting resistor to prevent overdrive and thermal runaway.
3 (Collector)	Output terminal	Connected to load and negative supply; voltage swing limited by V_CEO rating; primary heat-generating node during conduction.

Key Features

Feature	Design Value
High-speed switching	t_on ≤ 45 ns and t_off ≤ 100 ns enable clean digital waveform reproduction in 5–10 MHz clocked loads.
Wide h_FE range	100–300 ensures consistent gain across production lots, reducing need for binning or trim resistors in amplifier designs.
Robust breakdown ratings	V_CEO = V_CBO = −60 V supports operation across 24 V and 48 V industrial rails with margin.
Low-profile SOT-23	1.3 mm × 2.4 mm footprint saves board space vs. TO-92; compatible with automated pick-and-place and reflow processes.

Applications

LED Driver Stage	Logic-Level Inverter
Use Scenario: Driving 20–100 mA indicator or status LEDs from 3.3 V or 5 V microcontroller GPIO pins. IC Role / Device Role / Timing Role: PNP switch sinking current from V_CC through LED to ground; provides inverted logic control with fast edge response. Use Value: Enables direct GPIO interface without level-shifting; t_on/t_off ensures flicker-free blinking at ≥1 kHz.	Use Scenario: Converting TTL/CMOS logic signals (e.g., 0 V/3.3 V) into complementary outputs for gate driving or bus arbitration. IC Role / Device Role / Timing Role: Discrete inverter stage providing rail-to-rail output swing and sub-100 ns propagation delay. Use Value: Delivers precise signal inversion with minimal added latency; h_FE stability avoids duty-cycle distortion across temperature.
DC Load Switch	Audio Preamp Stage
Use Scenario: Enabling/disabling 12 V solenoids, relays, or small fans in HVAC or appliance control modules. IC Role / Device Role / Timing Role: High-side switch controlling power delivery to external loads; operated in saturation/cutoff modes. Use Value: Supports −500 mA loads with V_CE(sat) ≤ −1.6 V, minimizing power loss and self-heating during sustained on-time.	Use Scenario: Low-noise, single-stage amplification of microphone or sensor signals in portable audio interfaces. IC Role / Device Role / Timing Role: Common-emitter amplifier biased in active region; configured for mid-band voltage gain (A_v ≈ 50–100). Use Value: f_T ≥ 200 MHz ensures flat frequency response up to 20 kHz; low C_ob (8 pF) minimizes Miller effect distortion.

LED Driver Stage

Logic-Level Inverter

Use Scenario: Driving 20–100 mA indicator or status LEDs from 3.3 V or 5 V microcontroller GPIO pins.

IC Role / Device Role / Timing Role: PNP switch sinking current from V_CC through LED to ground; provides inverted logic control with fast edge response.

Use Value: Enables direct GPIO interface without level-shifting; t_on/t_off ensures flicker-free blinking at ≥1 kHz.

Use Scenario: Converting TTL/CMOS logic signals (e.g., 0 V/3.3 V) into complementary outputs for gate driving or bus arbitration.

IC Role / Device Role / Timing Role: Discrete inverter stage providing rail-to-rail output swing and sub-100 ns propagation delay.

Use Value: Delivers precise signal inversion with minimal added latency; h_FE stability avoids duty-cycle distortion across temperature.

DC Load Switch

Audio Preamp Stage

Use Scenario: Enabling/disabling 12 V solenoids, relays, or small fans in HVAC or appliance control modules.

IC Role / Device Role / Timing Role: High-side switch controlling power delivery to external loads; operated in saturation/cutoff modes.

Use Value: Supports −500 mA loads with V_CE(sat) ≤ −1.6 V, minimizing power loss and self-heating during sustained on-time.

Use Scenario: Low-noise, single-stage amplification of microphone or sensor signals in portable audio interfaces.

IC Role / Device Role / Timing Role: Common-emitter amplifier biased in active region; configured for mid-band voltage gain (A_v ≈ 50–100).

Use Value: f_T ≥ 200 MHz ensures flat frequency response up to 20 kHz; low C_ob (8 pF) minimizes Miller effect distortion.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT2907A	Identical electrical specs and SOT-23 package; top mark "2F" matches MMBT2907-D87Z; D87Z suffix denotes specific tape-and-reel packaging variant per Fairchild/ON Semi ordering system.	No functional difference; fully interchangeable in circuit design and layout.	Select MMBT2907A when standard reel packaging suffices; D87Z may be required for legacy BOM or ERP alignment.
PN2907A	Same die but in TO-92 through-hole package; higher P_D (625 mW) and lower R_θJA (200 °C/W); slower t_on/t_off not specified in datasheet.	Suitable only for prototyping, low-volume assembly, or legacy through-hole designs; incompatible with SMT lines.	Choose PN2907A only for hand-soldered prototypes or where thermal headroom >350 mW is mandatory and board space allows TO-92 footprint.

Compared with MMBT2907-D87Z, MMBT2907A offers identical performance in identical SOT-23 packaging and can be substituted without layout change, while PN2907A trades miniaturization and speed for higher power handling and through-hole compatibility - making it relevant only for non-SMT contexts or thermal-limited designs.

Availability

MMBT2907-D87Z is available at Aetrix Electronics and suitable for LED driver stages, logic-level inverters, DC load switches, audio preamp stages, and discrete power control circuits requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for MMBT2907-D87Z 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

ON Semiconductor (formerly Fairchild Semiconductor) is a global leader in intelligent power and sensing technologies, delivering energy-efficient semiconductor solutions for automotive, industrial, cloud, and IoT applications.

The MMBT2907-D87Z belongs to ON Semiconductor's general-purpose bipolar transistor product line, engineered for cost-sensitive, high-reliability discrete switching and amplification in space-constrained consumer and industrial electronics.

FAQ

What is the pin configuration of the MMBT2907-D87Z?

The MMBT2907-D87Z uses standard SOT-23 pinout: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. This matches JEDEC TO-236AB orientation with emitter adjacent to the tab notch. Layout must observe thermal pad clearance and avoid copper under the package body to maintain R_θJA = 357 °C/W.

Does the MMBT2907-D87Z support 500 mA continuous current?

Yes - the MMBT2907-D87Z is rated for −500 mA continuous collector current with verified h_FE ≥ 50 and V_CE(sat) ≤ −1.6 V under I_B = −50 mA drive. However, power dissipation must be managed: at −500 mA and −1.6 V, P_D ≈ 800 mW exceeds the 350 mW SOT-23 rating, so forced-air cooling or reduced duty cycle is required.

How does the MMBT2907-D87Z differ from the MMBT2907A?

The MMBT2907-D87Z and MMBT2907A share identical silicon die, electrical specifications, SOT-23 package, and top mark "2F". The D87Z suffix reflects a specific tape-and-reel packaging variant defined in ON Semiconductor's ordering system post-Fairchild integration; no electrical or mechanical differences exist between them.

Can the MMBT2907-D87Z replace a 2N2907 in existing designs?

The MMBT2907-D87Z is not a direct replacement for through-hole 2N2907 due to package mismatch (SOT-23 vs. TO-92) and differing thermal characteristics. While electrical parameters align closely, PCB layout, thermal relief, and assembly process must be revised. Use PN2907A instead for TO-92 drop-in compatibility.

What is the maximum operating temperature for the MMBT2907-D87Z?

The MMBT2907-D87Z has a specified operating junction temperature range of −55°C to +150°C. At ambient temperatures above 25°C, power dissipation must be linearly derated at 2.8 mW/°C. For reliable long-term operation, keep T_J ≤ 125°C using appropriate copper area and airflow - especially at I_C > −300 mA.

MMBT2907-D87Z Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP

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

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

Vce Saturation (Max) @ Ib, Ic:: 1.6V @ 50mA, 500mA

Current - Collector Cutoff (Max):: 20nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 10V

Power - Max:: 350 mW

Frequency - Transition:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

MMBT2907-D87Z FAQ

1.How can I place an order for MMBT2907-D87Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MMBT2907-D87Z 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 MMBT2907-D87Z reliable?

The price and inventory of MMBT2907-D87Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBT2907-D87Z is usually 5 days.

3.What payment methods are accepted for MMBT2907-D87Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBT2907-D87Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MMBT2907-D87Z?

MMBT2907-D87Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MMBT2907-D87Z 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 MMBT2907-D87Z?

For technical support, including MMBT2907-D87Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBT2907-D87Z requirements.

6.How does Aetrix verify that MMBT2907-D87Z is sourced from the original manufacturer or authorized distributors?

All MMBT2907-D87Z 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 MMBT2907-D87Z meets industry standards.

7.What is the process for return or replacement of MMBT2907-D87Z?

All MMBT2907-D87Z units undergo pre-shipment inspection (PSI). If there is an issue with MMBT2907-D87Z, 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 MMBT2907-D87Z part is unused and in its original packaging.

Return procedure for MMBT2907-D87Z:

1.Submit a request within 90 days.

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

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