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

onsemi BC369ZL1

Name: BC369ZL1
Brand: onsemi
SKU: BC369ZL1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC369ZL1

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 Long Body, Formed Leads

Datasheet:: BC369ZL1.pdf

Description:: TRANS PNP 20V 1A TO92

Quantity:: RFQ Add To RFQ list

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Inventory:6,684

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Product details

Overview

BC369ZL1 from onsemi is a PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching in low-voltage analog and digital circuits, with V_CEO = 20 V, I_C = 1.0 A, P_D = 625 mW at T_A = 25°C, h_FE = 50–375 (depending on bias), and V_CE(sat) ≤ 0.5 V at I_C/I_B = 10 - commonly used in discrete audio preamplifier stages, relay drivers, and level-shifting interfaces.

For engineers reviewing the BC369ZL1 datasheet, pinout, applications, or equivalent options, key selection considerations include its TO-92 package thermal limits (R_JA = 200°C/W), guaranteed PNP polarity and breakdown ratings (V_CES = 25 V, V_EBO = 5.0 V), DC current gain range across operating conditions, and Pb-free compliance per ON Semiconductor's standard packaging.

Technical Context

The BC369ZL1 operates as a medium-power PNP BJT with fixed-emitter configuration and base-controlled conduction. Its electrical behavior is defined by three primary DC parameters: V_(BR)CEO = 20 V (IC = 10 mA), h_FE ≥ 50 at V_CE = 10 V / I_C = 5 mA, and V_CE(sat) ≤ 0.5 V under forced β = 10 drive - confirming suitability for saturated switching and linear amplification up to ~65 MHz f_T.

Thermal design must account for its R_JA = 200°C/W (ambient) and R_JC = 83.3°C/W (case), with derating of 5.0 mW/°C above 25°C ambient or 12 mW/°C above 25°C case temperature. Junction temperature is rated from −55°C to +150°C, supporting industrial-grade operation when mounted on PCBs with minimal copper heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 Vdc - maximum collector-emitter voltage before breakdown under open-base condition; defines safe operating voltage headroom in common-emitter amplifier or switch topologies.
I_C (max)	1.0 Adc - continuous collector current limit; sets upper bound for load-driving capability in relay or LED driver applications.
P_D @ T_A=25°C	625 mW - total power dissipation at room ambient; requires thermal management if ambient exceeds 25°C or power approaches this limit.
h_FE	50–375 - DC current gain range across test conditions; enables predictable base drive sizing for both linear and saturated operation.
V_CE(sat)	≤0.5 V - collector-emitter saturation voltage at I_C = 1.0 A / I_B = 100 mA; determines conduction loss and heat generation in switching mode.
f_T	65 MHz - transition frequency at I_C = 10 mA / V_CE = 5 V; indicates usable bandwidth for RF-coupled preamp or oscillator buffer stages.

Pinout & Package

BC369ZL1 is housed in a TO-92 plastic package (Case 29, Style 14), with standardized lead assignment: Pin 1 = Emitter, Pin 2 = Collector, Pin 3 = Base. The package supports through-hole mounting and complies with Pb-free soldering standards per ON Semiconductor's SOLDER RM/D reference manual.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Emitter	Current exit terminal for PNP device; connected to higher potential rail in common-emitter configurations.
Pin 2	Collector	Current entry terminal; typically tied to load and supply rail in switching applications or AC-coupled output in amplifiers.
Pin 3	Base	Control electrode; forward-biased with respect to emitter to enable conduction; requires current-limiting resistor in most designs.

Key Features

Feature	Design Value
Pb-free TO-92 package	Complies with RoHS Directive 2011/65/EU and ON Semiconductor's Pb-free soldering guidelines; suitable for lead-free reflow and wave soldering processes.
Guaranteed V_(BR)EBO ≥ 5.0 V	Enables reliable base-emitter reverse bias tolerance in level-shifting or bidirectional interface circuits without external clamping.
h_FE min = 50 @ V_CE = 10 V / I_C = 5 mA	Ensures sufficient current gain for low-base-drive signal conditioning and ensures stable bias point in Class-A amplifier designs.
V_CE(sat) ≤ 0.5 V @ I_C/I_B = 10	Reduces power loss and self-heating during saturation, improving efficiency and thermal margin in high-duty-cycle switching.

Applications

Audio Preamp Stage	Relay Driver Circuit
Use Scenario: Low-noise small-signal amplification of microphone or line-level inputs in battery-powered portable audio devices. IC Role / Device Role / Timing Role: PNP BJT configured in common-emitter topology to provide voltage gain and impedance transformation. Use Value: h_FE ≥ 50 and f_T = 65 MHz support clean mid-band amplification up to 20 kHz with minimal distortion and stable DC bias.	Use Scenario: Driving electromagnetic relays requiring 100–500 mA coil current from microcontroller GPIO pins. IC Role / Device Role / Timing Role: Saturated PNP switch controlling relay coil between V_CC and ground via emitter-follower or common-emitter arrangement. Use Value: V_CE(sat) ≤ 0.5 V minimizes coil voltage drop and ensures full actuation; I_C = 1.0 A rating provides safety margin over typical 200 mA relay loads.
Level-Shifting Interface	Discrete Power Supply Control
Use Scenario: Translating logic signals between 3.3 V MCU outputs and 5–12 V peripheral inputs in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: PNP configured as active-low level shifter with pull-up resistor on collector and base driven by MCU. Use Value: V_EBO = 5.0 V allows safe reverse-biasing of base-emitter junction during low-state transitions without damage.	Use Scenario: Enabling/disabling auxiliary 5 V or 12 V rails using microcontroller-controlled PNP pass transistor in series with input supply. IC Role / Device Role / Timing Role: Linear regulator element or ON/OFF pass switch placed between unregulated input and regulated output bus. Use Value: P_D = 625 mW and T_J = −55°C to +150°C support continuous operation under moderate load currents and ambient temperature variations.

Audio Preamp Stage

Relay Driver Circuit

Use Scenario: Low-noise small-signal amplification of microphone or line-level inputs in battery-powered portable audio devices.

IC Role / Device Role / Timing Role: PNP BJT configured in common-emitter topology to provide voltage gain and impedance transformation.

Use Value: h_FE ≥ 50 and f_T = 65 MHz support clean mid-band amplification up to 20 kHz with minimal distortion and stable DC bias.

Use Scenario: Driving electromagnetic relays requiring 100–500 mA coil current from microcontroller GPIO pins.

IC Role / Device Role / Timing Role: Saturated PNP switch controlling relay coil between V_CC and ground via emitter-follower or common-emitter arrangement.

Use Value: V_CE(sat) ≤ 0.5 V minimizes coil voltage drop and ensures full actuation; I_C = 1.0 A rating provides safety margin over typical 200 mA relay loads.

Level-Shifting Interface

Discrete Power Supply Control

Use Scenario: Translating logic signals between 3.3 V MCU outputs and 5–12 V peripheral inputs in mixed-voltage embedded systems.

IC Role / Device Role / Timing Role: PNP configured as active-low level shifter with pull-up resistor on collector and base driven by MCU.

Use Value: V_EBO = 5.0 V allows safe reverse-biasing of base-emitter junction during low-state transitions without damage.

Use Scenario: Enabling/disabling auxiliary 5 V or 12 V rails using microcontroller-controlled PNP pass transistor in series with input supply.

IC Role / Device Role / Timing Role: Linear regulator element or ON/OFF pass switch placed between unregulated input and regulated output bus.

Use Value: P_D = 625 mW and T_J = −55°C to +150°C support continuous operation under moderate load currents and ambient temperature variations.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP BJT amplification and switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC369G	Pb-free TO-92 variant with identical electrical specs and same 2000-unit ammo pack shipping format; differs only in marking (no "ZL1" suffix) and minor packaging labeling.	No functional difference; suitable for same circuit designs and layout footprints.	Select BC369G when sourcing flexibility or alternate packaging documentation is required without performance trade-off.
MPSA92	Higher V_CEO = 30 V, lower I_C = 500 mA, h_FE = 25–200; TO-92 package but different gain distribution and saturation characteristics.	Better suited for higher-voltage, lower-current switching; less ideal for 1 A load driving or high-gain linear stages.	Choose MPSA92 where extended breakdown margin is critical and load current remains below 500 mA.

Compared with BC369G and MPSA92, the BC369ZL1 offers verified 1.0 A continuous current capability and tighter production binning for h_FE consistency in high-volume manufacturing, while maintaining compatibility with legacy BC369-based designs and Pb-free assembly requirements.

Availability

BC369ZL1 is available at Aetrix Electronics and suitable for audio preamplifier stages, relay driver circuits, and level-shifting interfaces requiring stable component supply, consistent parametric binning, and RoHS-compliant through-hole transistors.

Supply support for BC369ZL1 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 manufacturer specializing in energy-efficient power management, analog, sensor, and discrete solutions for automotive, industrial, cloud, and consumer markets.

The BC369ZL1 belongs to onsemi's general-purpose bipolar transistor product line, engineered for cost-sensitive, high-reliability discrete amplification and switching in industrial control, audio, and power interface applications.

FAQ

What is the pin configuration of the BC369ZL1?

The BC369ZL1 uses a TO-92 package with Pin 1 = Emitter, Pin 2 = Collector, and Pin 3 = Base. This configuration is standardized across the BC368/BC369 family and confirmed in the official ON Semiconductor package drawing CASE 29-11, Style 14. Correct orientation is essential to avoid reverse-bias damage or circuit malfunction.

Is BC369ZL1 RoHS compliant?

Yes, BC369ZL1 is RoHS compliant and manufactured as a Pb-free device per ON Semiconductor's SOLDER RM/D reference manual. The "ZL1" suffix denotes Pb-free packaging, and the device meets EU Directive 2011/65/EU requirements for hazardous substance restrictions in electronic components.

What is the maximum junction temperature for BC369ZL1?

The BC369ZL1 has an operating and storage junction temperature range of −55°C to +150°C. This rating is specified in the Absolute Maximum Ratings table and applies under all valid bias conditions. Thermal design must ensure actual T_J remains within this window, especially when dissipating near 625 mW at elevated ambient temperatures.

Can BC369ZL1 replace BC369 in existing designs?

Yes, BC369ZL1 is a direct replacement for BC369 in existing designs, sharing identical electrical specifications, TO-92 package dimensions, and pinout. The "ZL1" suffix indicates Pb-free construction and 2000-unit ammo box packaging, but no electrical or mechanical changes affect circuit functionality or layout compatibility.

What is the typical f_T value for BC369ZL1?

The typical f_T (transition frequency) for BC369ZL1 is 65 MHz, measured at I_C = 10 mA, V_CE = 5.0 V, and f = 20 MHz. This value is specified in the Electrical Characteristics table and reflects the device's usable bandwidth for small-signal amplification and RF-coupled buffer applications.

BC369ZL1 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 Long Body, Formed Leads

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 20 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

Current - Collector Cutoff (Max):: 10µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 85 @ 500mA, 1V

Power - Max:: 625 mW

Frequency - Transition:: 65MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92 (TO-226)

BC369ZL1 FAQ

1.How can I place an order for BC369ZL1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC369ZL1 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 BC369ZL1 reliable?

The price and inventory of BC369ZL1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC369ZL1 is usually 5 days.

3.What payment methods are accepted for BC369ZL1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC369ZL1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC369ZL1?

BC369ZL1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC369ZL1 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 BC369ZL1?

For technical support, including BC369ZL1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC369ZL1 requirements.

6.How does Aetrix verify that BC369ZL1 is sourced from the original manufacturer or authorized distributors?

All BC369ZL1 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 BC369ZL1 meets industry standards.

7.What is the process for return or replacement of BC369ZL1?

All BC369ZL1 units undergo pre-shipment inspection (PSI). If there is an issue with BC369ZL1, 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 BC369ZL1 part is unused and in its original packaging.

Return procedure for BC369ZL1:

1.Submit a request within 90 days.

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

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