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

Nexperia USA Inc. BC807-40QBZ

Name: BC807-40QBZ
Brand: Nexperia USA Inc.
SKU: BC807-40QBZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC807-40QBZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-XDFN Exposed Pad

Datasheet:: BC807-40QBZ.pdf

Description:: TRANS 45V 0.5A DFN1110D-3

Quantity:: RFQ Add To RFQ list

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Inventory:30,000

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Product details

Overview

BC807-40QBZ from Nexperia is a PNP general-purpose bipolar junction transistor in a leadless DFN1110D-3 (SOT8015) package, rated for −45 V V_CEO, −500 mA I_C, and DC current gain (h_FE) of 250–600 at V_CE = −1 V and I_C = −100 mA. It serves as a compact, high-reliability switching and amplification device in space-constrained consumer and industrial PCBs.

For engineers reviewing the BC807-40QBZ datasheet, BC807-40QBZ pinout, BC807-40QBZ application, or BC807-40QBZ equivalent, this part supports AOI-compatible solder joint inspection, delivers low saturation voltage (−700 mV max at I_C = −500 mA / I_B = −50 mA), and operates across −55 °C to +150 °C ambient temperature with side-wettable flanks for reliable reflow yield.

Technical Context

This PNP BJT features a planar epitaxial die structure optimized for stable DC current gain across temperature (h_FE = 250–600 at 25 °C, retaining >40 minimum at I_C = −500 mA), with low V_CEsat and V_BE enabling efficient low-voltage switching. Its thermal resistance (R_th(j-a)) is 272 K/W on 70 μm FR4 copper, supporting continuous operation up to 460 mW at T_amb ≤ 25 °C.

The DFN1110D-3 package integrates side-wettable flanks (SWF) for automated optical inspection of solder joints, 0.65 mm pitch, and ultra-thin 0.48 mm profile - reducing board area by >50% versus SOT23 while maintaining thermal performance comparable to larger leaded packages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V: Maximum collector-emitter voltage before breakdown under open-base conditions; defines safe operating range in high-side switch configurations.
I_C	−500 mA: Continuous DC collector current rating; supports robust load driving in power management and interface circuits.
h_FE	250–600 at V_CE = −1 V, I_C = −100 mA: High and tightly binned DC current gain enables precise base-current-limited switching without overdesign.
V_CEsat	−700 mV max at I_C = −500 mA, I_B = −50 mA: Low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle switching.
P_tot	460 mW at T_amb ≤ 25 °C on 70 μm FR4: Thermal capability allows sustained operation in dense layouts without forced cooling.
R_th(j-a)	272 K/W: Junction-to-ambient thermal resistance on standard FR4; enables accurate thermal margining for reliability-critical designs.
Package	DFN1110D-3 (SOT8015): 1.1 × 1.0 × 0.48 mm leadless package with side-wettable flanks for AOI-compatible reflow assembly.

Pinout & Package

BC807-40QBZ uses the DFN1110D-3 (SOT8015) surface-mount package: ultra-thin (0.48 mm height), 3-terminal, leadless design with side-wettable flanks for automated optical inspection. Dimensions: 1.1 mm × 1.0 mm × 0.48 mm, 0.65 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal; accepts negative bias current to turn on PNP conduction path between emitter and collector.
2	Emitter (E)	Current source terminal; connected to higher potential rail in high-side switch applications.
3	Collector (C)	Current sink terminal; routes switched load current to ground or lower-potential node.

Key Features

Feature	Design Value
Side-wettable flanks (SWF)	Enables 100% automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield and field reliability.
Ultra-small footprint	1.1 mm × 1.0 mm body area reduces PCB real estate by >50% vs. SOT23, critical for wearables and miniaturized IoT nodes.
High h_FE bin (250–600)	Reduces required base drive current and simplifies bias network design, lowering component count and power consumption in battery-powered systems.
Low V_CEsat (−700 mV max)	Minimizes power dissipation during saturation, extending thermal headroom and enabling higher duty-cycle operation in DC-DC prebias or LED driver stages.
Extended temperature range	Rated for −55 °C to +150 °C operation, supporting deployment in automotive under-hood, industrial motor controls, and outdoor equipment.

Applications

LED Current Switching

Microcontroller GPIO Interface

Use Scenario: Driving 20–50 mA indicator LEDs from 3.3 V or 5 V microcontroller outputs.

IC Role / Device Role / Timing Role: PNP switch configured in common-emitter mode, sinking current from LED anode to ground when base is pulled low.

Use Value: Low V_CEsat ensures <100 mV dropout across transistor, preserving LED forward voltage margin and brightness consistency.

Use Scenario: Level-shifting and current boosting for MCU output pins driving higher-current loads like relays or small solenoids.

IC Role / Device Role / Timing Role: General-purpose PNP buffer stage providing inverted logic control with gain sufficient to drive ≥100 mA loads.

Use Value: Tight h_FE bin (250–600) guarantees predictable base current requirements, eliminating need for external current-limiting resistors in many cases.

Power Rail Enable Control

Low-Voltage Battery Monitoring

Use Scenario: Enabling/disabling auxiliary 3.3 V or 1.8 V power rails in portable electronics using enable signals from PMIC or system controller.

IC Role / Device Role / Timing Role: High-side switch controlling V_OUT via emitter-follower configuration, with base driven by logic-level signal.

Use Value: −45 V V_CEO rating provides ample margin against supply transients, ensuring safe operation during hot-plug or load-dump events.

Use Scenario: Precision voltage divider biasing and signal conditioning in Li-ion battery fuel gauge circuits operating down to 2.5 V.

IC Role / Device Role / Timing Role: Amplifier stage for scaling battery voltage to ADC input range, leveraging stable h_FE across temperature.

Use Value: Minimal V_BE drift (−2 mV/K) and low leakage (<100 nA I_CBO) preserve measurement accuracy over full −40 °C to +85 °C operating range.

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
BC807-40,115 (SOT23)	Larger SOT23 package (2.9 × 1.3 × 1.0 mm); no side-wettable flanks; identical electrical specs except R_th(j-a) = 350 K/W.	Suitable where AOI is not required and PCB area is less constrained; lower thermal efficiency limits continuous I_C derating.	Select when legacy footprint compatibility or manual rework access is prioritized over miniaturization and AOI support.
MMBT3906LT1G (SOT23)	Lower V_CEO (−40 V); narrower h_FE range (100–300); higher V_CEsat (−800 mV typ); same 3-pin SOT23 outline.	Acceptable for ≤−40 V systems with relaxed gain stability; less suitable for high-efficiency or wide-temperature-range designs.	Choose only if cost sensitivity outweighs performance margin needs and thermal constraints permit higher saturation loss.

Compared with BC807-40QBZ, the BC807-40,115 offers mechanical compatibility but sacrifices AOI capability and thermal performance, while MMBT3906LT1G trades voltage margin, gain stability, and saturation efficiency for broader distributor availability - making BC807-40QBZ optimal for next-gen compact, high-yield, thermally demanding designs.

Availability

BC807-40QBZ is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface buffering, power rail enable control, and low-voltage battery monitoring requiring stable component supply across high-mix production runs.

Supply support for BC807-40QBZ 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

Nexperia is a global semiconductor expert focused on essential semiconductors, delivering high-performance, reliable discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.

The BC807QB series belongs to Nexperia's general-purpose transistor product line, engineered specifically for space-constrained, high-yield SMT applications requiring AOI-compatible packaging, tight gain binning, and extended thermal operation.

FAQ

What is the maximum continuous collector current for BC807-40QBZ at 85 °C ambient?

At T_amb = 85 °C, the maximum continuous collector current is derated to approximately −320 mA, calculated using the 460 mW P_tot rating and thermal resistance of 272 K/W. This ensures junction temperature remains below 150 °C under steady-state conditions on standard FR4 PCBs with 70 μm copper.

Does BC807-40QBZ support lead-free reflow soldering per JEDEC J-STD-020?

Yes, BC807-40QBZ is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature tolerance up to 260 °C for 30 seconds. The DFN1110D-3 package's side-wettable flanks and thermal mass are validated for standard Pb-free profiles, including ramp-soak-reflow cycles used in high-volume SMT lines.

How does the marking code 'B2' identify BC807-40QBZ on the device body?

The top-side laser marking 'B2' is the unique identifier for BC807-40QBZ within the BC807QB series, per Table 5 of the datasheet. It appears on the package surface adjacent to pin 1 index area and is verified under 20× magnification during AOI - distinguishing it from BC807-16QB (A8) and BC807-25QB (A9).

Can BC807-40QBZ replace BC807-40 in existing SOT23 designs without layout changes?

No - BC807-40QBZ uses the DFN1110D-3 (SOT8015) package, which is physically incompatible with SOT23 footprints. Its 1.1 × 1.0 mm body, 0.65 mm pitch, and side-wettable flanks require a dedicated land pattern per Figure 17. Direct replacement would necessitate PCB redesign and stencil revision.

BC807-40QBZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-XDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: -

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 50mA, 500mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 250 @ 100mA, 1V

Power - Max:: 350 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: DFN1110D-3

BC807-40QBZ FAQ

1.How can I place an order for BC807-40QBZ through Aetrix?

Please submit a Request for Quotation (RFQ) for BC807-40QBZ 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 BC807-40QBZ reliable?

The price and inventory of BC807-40QBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC807-40QBZ is usually 5 days.

3.What payment methods are accepted for BC807-40QBZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC807-40QBZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC807-40QBZ?

BC807-40QBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC807-40QBZ 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 BC807-40QBZ?

For technical support, including BC807-40QBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC807-40QBZ requirements.

6.How does Aetrix verify that BC807-40QBZ is sourced from the original manufacturer or authorized distributors?

All BC807-40QBZ 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 BC807-40QBZ meets industry standards.

7.What is the process for return or replacement of BC807-40QBZ?

All BC807-40QBZ units undergo pre-shipment inspection (PSI). If there is an issue with BC807-40QBZ, 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 BC807-40QBZ part is unused and in its original packaging.

Return procedure for BC807-40QBZ:

1.Submit a request within 90 days.

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

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