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

Nexperia USA Inc. BCX17,215

Name: BCX17,215
Brand: Nexperia USA Inc.
SKU: BCX17,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCX17,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCX17,215.pdf

Description:: TRANS PNP 45V 0.5A TO-236AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,810

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Product details

Overview

BCX17,215 from NXP Semiconductors is a PNP general-purpose bipolar junction transistor in SOT23 package, rated for −45 V V_CEO, −500 mA I_C, and 250 mW P_tot, used in saturated switching and driver circuits for industrial service and thin-film applications.

For engineers reviewing the BCX17,215 datasheet, BCX17,215 pinout, BCX17,215 application, or BCX17,215 equivalent, key selection criteria include its PNP polarity, SOT23 footprint compatibility, −45 V collector-emitter breakdown, −620 mV V_CEsat at −500 mA, and h_FE range of 100–600 at −100 mA.

Technical Context

This PNP BJT operates in linear or saturated switching mode with fixed emitter-base and collector-base junction polarities. Its DC current gain (h_FE) varies from 40 at −500 mA to 600 at −100 mA, and it exhibits −2 mV/°C V_BE temperature coefficient.

The device uses silicon planar epitaxial construction, features 9 pF collector capacitance at −10 V V_CB, and delivers 80 MHz f_T under −10 mA I_C, −5 V V_CE conditions-enabling use in low-frequency amplification and digital switching up to ~10 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V: Maximum safe collector-emitter voltage before breakdown in open-base configuration.
I_C (DC)	−500 mA: Continuous collector current rating defining maximum steady-state load drive capability.
V_CEsat	−620 mV @ −500 mA/−50 mA: Low saturation voltage enabling efficient power dissipation in switch-mode operation.
h_FE	100–600 @ −100 mA: Wide DC current gain range supporting flexible bias design across operating currents.
P_tot	250 mW @ T_amb ≤ 25 °C: Thermal limit dictating PCB copper area and ambient cooling requirements.
f_T	80 MHz: Transition frequency indicating usable bandwidth for small-signal amplification or high-speed switching.
R_th(j-a)	500 K/W: Junction-to-ambient thermal resistance on FR4 board, guiding thermal derating above 25 °C.

Pinout & Package

SOT23 plastic surface-mounted package (TO-236AB), 3-lead, 1.4 mm × 1.2 mm footprint, 0.95 mm height, with gull-wing leads for reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input terminal; requires −50 mA base drive for full −500 mA collector conduction.
2	Emitter	Common reference terminal for PNP operation; connected to higher potential rail in switching configurations.
3	Collector	Output current terminal; sinks load current to ground or lower-potential node when biased on.

Key Features

Feature	Design Value
High DC current capability	Rated for −500 mA continuous collector current, supporting medium-power load switching.
Low saturation voltage	V_CEsat = −620 mV ensures <1.25 W power loss at full load, reducing heat generation in compact layouts.
Wide h_FE range	100–600 gain spread allows robust bias network design across process and temperature variations.
Thermal stability	Junction temperature rating up to 150 °C enables reliable operation in industrial ambient environments.
Standard SOT23 footprint	Compatible with automated pick-and-place and reflow processes, minimizing assembly cost and footprint.

Applications

Industrial Relay Drivers

LED Current Switches

Use Scenario: Driving 24 V DC relay coils requiring 40–100 mA hold current in PLC I/O modules.

IC Role / Device Role / Timing Role: PNP switch sinking coil current to ground; base driven by microcontroller GPIO through current-limiting resistor.

Use Value: −620 mV V_CEsat limits relay coil voltage drop to <0.62 V, ensuring >23.4 V across coil for reliable pull-in at low supply margins.

Use Scenario: Constant-current switching of high-brightness white LEDs in signage and panel indicators.

IC Role / Device Role / Timing Role: PNP current sink controlling LED string current via emitter resistor feedback.

Use Value: h_FE ≥ 100 at −100 mA enables stable 100 mA LED current with <1 mA base drive, simplifying control logic interface.

Level-Shifting Interfaces

Thin-Film Circuit Amplifiers

Use Scenario: Translating 3.3 V logic signals to 5–12 V domains in mixed-voltage sensor subsystems.

IC Role / Device Role / Timing Role: Common-emitter inverter stage providing inverted level shift with gain and isolation.

Use Value: −45 V V_CEO rating supports operation across 5–12 V rails without risk of avalanche breakdown during transients.

Use Scenario: Low-noise preamplification of analog sensor outputs in hybrid thick-film automotive sensors.

IC Role / Device Role / Timing Role: Fixed-bias common-emitter amplifier with emitter degeneration for linearity.

Use Value: 80 MHz f_T and 9 pF C_c support bandwidth up to 5 MHz with <1% distortion at −10 mA I_C.

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
BC807-40,215	Higher h_FE (250–630), same SOT23, −45 V V_CEO, but −500 mA I_C and −600 mV V_CEsat.	Better suited for low-base-drive designs; identical pinout and thermal profile.	Select when tighter h_FE tolerance or lower V_CEsat is required without layout change.
MMBT3906LT1G	Same −40 V V_CEO, −200 mA I_C, −400 mV V_CEsat, SOT23, but lower current rating and narrower h_FE (100–300).	Limited to sub-200 mA loads; preferred where space-constrained low-power switching dominates.	Choose only for <200 mA applications where ultra-low V_CEsat outweighs current capacity loss.

Compared with BCX17,215, BC807-40,215 offers higher gain consistency and marginally lower saturation voltage at same current, while MMBT3906LT1G trades current capacity for tighter V_CEsat in low-power roles-making BCX17,215 optimal for 300–500 mA industrial switching where gain flexibility and voltage margin are critical.

Availability

BCX17,215 is available at Aetrix Electronics and suitable for industrial relay drivers, LED current switches, level-shifting interfaces, and thin-film circuit amplifiers requiring stable component supply and long-term production continuity.

Supply support for BCX17,215 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The BCX17,215 belongs to NXP's legacy discrete BJT portfolio designed for cost-sensitive, high-reliability industrial switching and analog signal conditioning in space-constrained SMT assemblies.

FAQ

Is BCX17,215 RoHS compliant?

Yes, BCX17,215 is RoHS compliant per EU Directive 2011/65/EU, with lead-free terminations and halogen-free molding compound. NXP confirms compliance in product change notices dated 2006 onward, and the device carries the "RoHS" marking on reel labels and packaging.

What is the maximum allowable base current for BCX17,215?

The absolute maximum peak base current (I_BM) is −200 mA per the datasheet limiting values table. For continuous operation, base current should be limited to ≤−50 mA to maintain −500 mA collector current within safe SOA boundaries and avoid secondary breakdown.

Can BCX17,215 replace BCX18 in existing designs?

No-BCX17,215 has −45 V V_CEO and −50 V V_CBO, while BCX18 is rated for only −25 V V_CEO and −30 V V_CBO. Substituting BCX17,215 into a BCX18 design is electrically safe, but BCX18 cannot replace BCX17,215 in −45 V applications without risk of premature breakdown.

Does BCX17,215 require heatsinking in standard SOT23 mounting?

No heatsink is required below 125 mW dissipation. At full 250 mW P_tot, the device reaches thermal equilibrium at ~125 °C junction temperature on FR4 with 1 cm² copper pour-within its 150 °C T_j limit. Layout with ≥1 cm² 2-oz copper on collector pad suffices for most industrial use cases.

BCX17,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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

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

Vce Saturation (Max) @ Ib, Ic:: 620mV @ 50mA, 500mA

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

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

Power - Max:: 250 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BCX17,215 FAQ

1.How can I place an order for BCX17,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCX17,215 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 BCX17,215 reliable?

The price and inventory of BCX17,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX17,215 is usually 5 days.

3.What payment methods are accepted for BCX17,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX17,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCX17,215?

BCX17,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCX17,215 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 BCX17,215?

For technical support, including BCX17,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX17,215 requirements.

6.How does Aetrix verify that BCX17,215 is sourced from the original manufacturer or authorized distributors?

All BCX17,215 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 BCX17,215 meets industry standards.

7.What is the process for return or replacement of BCX17,215?

All BCX17,215 units undergo pre-shipment inspection (PSI). If there is an issue with BCX17,215, 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 BCX17,215 part is unused and in its original packaging.

Return procedure for BCX17,215:

1.Submit a request within 90 days.

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

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