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

onsemi SBC807-40LT3

Name: SBC807-40LT3
Brand: onsemi
SKU: SBC807-40LT3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SBC807-40LT3

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: SBC807-40LT3.pdf

Description:: TRANS PNP 45V 0.5A SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:62,788

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Product details

Overview

SBC807-40LT3 from onsemi is a PNP silicon general-purpose transistor in SOT-23 package, rated for −45 V V_CEO, −500 mA I_C, and 225 mW power dissipation on FR-5 board at 25°C. It delivers h_FE = 250–600 at I_C = −500 mA / V_CE = −1.0 V and is used in low-voltage switching and linear amplification circuits such as load switches and signal inverters.

For engineers reviewing the SBC807-40LT3 datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed DC current gain at high collector current, low V_CE(sat) under forced β = 10, thermal derating on standard PCBs, and Pb-free SOT-23 tape-and-reel packaging for automated assembly.

Technical Context

The SBC807-40LT3 operates as a medium-current PNP bipolar junction transistor with fixed emitter-base and collector-emitter breakdown limits (V_(BR)EBO = −5.0 V, V_(BR)CEO = −45 V). Its h_FE binning (40–600) ensures consistent gain performance across production lots when biased at −500 mA collector current and −1.0 V V_CE.

Designed for surface-mount operation on FR-5 or alumina substrates, it exhibits R_JA = 556°C/W (FR-5) and 417°C/W (alumina), with thermal derating of 1.8 mW/°C and 2.4 mW/°C respectively. Small-signal f_T = 100 MHz supports audio-frequency amplification and switching up to ~10 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V - Maximum safe collector-emitter voltage before avalanche breakdown under open-base conditions
I_C (max)	−500 mA - Continuous collector current rating defining usable switching/amplification range
h_FE	250–600 - DC current gain at −500 mA I_C/−1.0 V V_CE, enabling predictable base drive sizing
V_CE(sat)	≤ −0.7 V - Saturation voltage at −500 mA I_C and −50 mA I_B, limiting conduction loss in switch mode
f_T	100 MHz - Transition frequency confirming suitability for audio and low-MHz signal amplification
R_JA (FR-5)	556°C/W - Junction-to-ambient thermal resistance determining max ambient temperature for 225 mW operation

Pinout & Package

SOT-23 (Case 318, Style 6) plastic surface-mount package with gull-wing leads; 1.0 mm × 0.75 mm × 0.062 in footprint on FR-5 board.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased PNP operation; requires negative bias relative to emitter to turn on
2	Emitter	Current source terminal; connected to higher potential rail in typical common-emitter switch configuration
3	Collector	Current sink terminal; delivers load current to ground or lower-potential node when saturated

Key Features

Feature	Design Value
Pb-free SOT-23 packaging	Complies with RoHS Directive 2011/65/EU; compatible with lead-free reflow profiles (J-STD-020)
Guaranteed h_FE binning	Min 250 at −500 mA ensures reliable base resistor calculation without margin overdesign
Low V_CE(sat)	≤ −0.7 V at forced β = 10 reduces power loss and self-heating in high-duty-cycle switching
High V_(BR)CEO	−45 V enables use in 24 V industrial control rails with ≥2× voltage margin against transients

Applications

Industrial Relay Drivers	Low-Voltage Power Switches
Use Scenario: Driving 24 V DC coil relays in PLC I/O modules with microcontroller GPIO output. IC Role / Device Role / Timing Role: PNP switch sinking relay coil current to ground while isolating MCU from inductive kickback. Use Value: Guaranteed h_FE ≥ 250 ensures full saturation with ≤5 mA base drive, reducing MCU port loading.	Use Scenario: Enabling/disabling 12 V power rails for sensors or communication ICs in battery-powered IoT nodes. IC Role / Device Role / Timing Role: High-side load switch controlling V_CC delivery using logic-level inverted control signal. Use Value: V_CE(sat) ≤ −0.7 V limits dropout to <1 V at 400 mA, preserving headroom for downstream LDOs.
Audio Signal Inverters	LED Current Regulators
Use Scenario: Inverting line-level audio signals in analog front-end stages of portable audio codecs. IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing unity-gain inversion with minimal distortion. Use Value: f_T = 100 MHz supports flat response up to 20 kHz with <0.1% THD at 1 V_PP output swing.	Use Scenario: Constant-current sink for status LEDs in automotive dashboard clusters operating from 5 V supply. IC Role / Device Role / Timing Role: Linear current regulator using emitter resistor feedback and fixed base bias. Use Value: Tight h_FE distribution (250–600) enables ±5% LED current accuracy without trimming.

Industrial Relay Drivers

Low-Voltage Power Switches

Use Scenario: Driving 24 V DC coil relays in PLC I/O modules with microcontroller GPIO output.

IC Role / Device Role / Timing Role: PNP switch sinking relay coil current to ground while isolating MCU from inductive kickback.

Use Value: Guaranteed h_FE ≥ 250 ensures full saturation with ≤5 mA base drive, reducing MCU port loading.

Use Scenario: Enabling/disabling 12 V power rails for sensors or communication ICs in battery-powered IoT nodes.

IC Role / Device Role / Timing Role: High-side load switch controlling V_CC delivery using logic-level inverted control signal.

Use Value: V_CE(sat) ≤ −0.7 V limits dropout to <1 V at 400 mA, preserving headroom for downstream LDOs.

Audio Signal Inverters

LED Current Regulators

Use Scenario: Inverting line-level audio signals in analog front-end stages of portable audio codecs.

IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing unity-gain inversion with minimal distortion.

Use Value: f_T = 100 MHz supports flat response up to 20 kHz with <0.1% THD at 1 V_PP output swing.

Use Scenario: Constant-current sink for status LEDs in automotive dashboard clusters operating from 5 V supply.

IC Role / Device Role / Timing Role: Linear current regulator using emitter resistor feedback and fixed base bias.

Use Value: Tight h_FE distribution (250–600) enables ±5% LED current accuracy without trimming.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-40LT1	Same die, 3000-unit tape-and-reel vs. 10,000-unit tape-and-reel; identical electrical specs	No functional difference; suited for lower-volume prototyping or small-batch builds	Select SBC807-40LT3 for high-volume automated assembly requiring larger reels
MMBT4403	Lower h_FE (min 100 @ −150 mA), higher V_CE(sat) (≤ −0.75 V @ −150 mA), same SOT-23 package	Less suitable for >300 mA switching due to reduced gain and higher saturation loss	Choose MMBT4403 only if cost sensitivity outweighs performance at high I_C

Compared with BC807-40LT1, SBC807-40LT3 offers identical performance in a higher-density reel format; versus MMBT4403, it provides superior gain and lower saturation voltage at 500 mA, making it preferred for industrial load switching where efficiency and drive margin matter.

Availability

SBC807-40LT3 is available at Aetrix Electronics and suitable for industrial relay drivers, low-voltage power switches, audio signal inverters, and LED current regulators requiring stable component supply and RoHS-compliant packaging.

Supply support for SBC807-40LT3 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering power, analog, sensor, and connectivity solutions.

The BC807 series was designed for general-purpose PNP switching and amplification in space-constrained, cost-sensitive applications across industrial, consumer, and automotive electronics.

FAQ

What is the maximum continuous collector current rating for the SBC807-40LT3?

The SBC807-40LT3 has a maximum continuous collector current (I_C) rating of −500 mA at T_A = 25°C on FR-5 board. This rating assumes proper thermal management and derates linearly by 1.8 mW/°C above 25°C ambient. Exceeding this current without adequate heatsinking risks thermal runaway or permanent damage to the SBC807-40LT3.

Does the SBC807-40LT3 meet RoHS requirements?

Yes, the SBC807-40LT3 is Pb-free and complies with the EU RoHS Directive 2011/65/EU. Its SOT-23 package uses lead-free terminations and is qualified for standard lead-free reflow soldering processes per J-STD-020. The "LT3" suffix explicitly denotes the 10,000-unit Pb-free tape-and-reel variant of the SBC807-40LT3.

What is the guaranteed DC current gain (h_FE) range for the SBC807-40LT3 at high current?

The SBC807-40LT3 guarantees h_FE ≥ 250 at I_C = −500 mA and V_CE = −1.0 V, with typical values reaching 600. This high-current gain binning ensures robust saturation with modest base drive-critical for reliable operation in the SBC807-40LT3's target applications like relay drivers and power switches.

Can the SBC807-40LT3 be used as a direct replacement for BC807-40LT1?

Yes, the SBC807-40LT3 is electrically and mechanically identical to BC807-40LT1, differing only in packaging quantity (10,000 vs. 3,000 units per reel) and Pb-free marking. Both share identical die, SOT-23 footprint, pinout, and all electrical specifications. No design or layout changes are needed when substituting SBC807-40LT3 for BC807-40LT1.

What is the thermal resistance (R_JA) of the SBC807-40LT3 on a standard FR-5 PCB?

The SBC807-40LT3 has a junction-to-ambient thermal resistance (R_JA) of 556°C/W when mounted on a standard FR-5 board (1.0 × 0.75 × 0.062 in) at T_A = 25°C. This value determines the maximum allowable ambient temperature for safe operation at full 225 mW dissipation-and must be factored into thermal design when using the SBC807-40LT3 in enclosed or high-temperature environments.

SBC807-40LT3 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

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

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

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:: 300 mW

Frequency - Transition:: 100MHz

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3 (TO-236)

SBC807-40LT3 FAQ

1.How can I place an order for SBC807-40LT3 through Aetrix?

Please submit a Request for Quotation (RFQ) for SBC807-40LT3 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 SBC807-40LT3 reliable?

The price and inventory of SBC807-40LT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBC807-40LT3 is usually 5 days.

3.What payment methods are accepted for SBC807-40LT3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBC807-40LT3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SBC807-40LT3?

SBC807-40LT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SBC807-40LT3 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 SBC807-40LT3?

For technical support, including SBC807-40LT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBC807-40LT3 requirements.

6.How does Aetrix verify that SBC807-40LT3 is sourced from the original manufacturer or authorized distributors?

All SBC807-40LT3 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 SBC807-40LT3 meets industry standards.

7.What is the process for return or replacement of SBC807-40LT3?

All SBC807-40LT3 units undergo pre-shipment inspection (PSI). If there is an issue with SBC807-40LT3, 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 SBC807-40LT3 part is unused and in its original packaging.

Return procedure for SBC807-40LT3:

1.Submit a request within 90 days.

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

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