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Nexperia USA Inc. BCX55-10TF
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- Part No.:
- BCX55-10TF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX55-10TF.pdf
- Description:
- TRANS NPN 60V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:11,650
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Product details
Overview
BCX55-10TF from Nexperia is a 60 V, 1 A NPN power bipolar transistor in SOT89 (SC-62) surface-mount package, designed for medium-power linear and switching applications including low-side switching, MOSFET gate driving, and linear voltage regulation. It delivers hFE = 63–160 at VCE = 2 V and IC = 150 mA, supports 2 A peak collector current, and is AEC-Q101 qualified for automotive use.
For engineers reviewing the BCX55-10TF datasheet, BCX55-10TF pinout, BCX55-10TF application, or BCX55-10TF equivalent, this device is selected for robust DC gain stability across temperature, high power dissipation capability on standard FR4 PCBs, and reliable operation in automotive-grade power management circuits where thermal margin and junction temperature control are critical.
Technical Context
This NPN power transistor operates with open-base VCEO = 60 V and VCB0 = 60 V, enabling use in 48 V automotive subsystems and industrial 24–48 V rails. Its pulsed ICM = 2 A and continuous IC = 1 A rating support short-duration surge handling in driver stages and regulator pass elements.
The device exhibits VCE(sat) ≤ 500 mV at IC = 500 mA / IB = 50 mA, ensuring low conduction loss in saturated-switching roles. Its fT = 155 MHz and Cc = 4.5 pF at VCB = 10 V indicate suitability for moderate-frequency switching up to ~10 MHz with minimal capacitive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 60 V - Maximum safe collector-emitter voltage under open-base condition; defines rail compatibility with 48 V systems. |
| IC | 1 A continuous - Sustained DC current handling capacity; enables use as main pass element in 1 A linear regulators. |
| hFE | 63–160 at VCE = 2 V, IC = 150 mA - Confirmed DC current gain range for stable bias design in amplifier and switch driver stages. |
| Ptot | 1100 mW at Tamb ≤ 25 °C with 6 cm² collector pad - Realistic power dissipation on production PCBs with enhanced copper area. |
| fT | 155 MHz - Transition frequency confirming usable bandwidth for fast-switching gate drive and RF-coupled amplification. |
| Rth(j-a) | 114 K/W with 6 cm² collector pad - Thermal resistance enabling junction temperature rise of ≤128 °C at full 1 A load in ambient 25 °C. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, single-sided copper mounting. Collector tab is electrically connected to Pin 2 and thermally exposed for heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current return path; connects to ground or low-side reference; requires low-impedance trace for stable bias. |
| 2 | Collector | Main power output node; electrically and thermally tied to exposed metal tab; must be routed to large copper pour. |
| 3 | Base | Control input; driven by logic-level or op-amp source; requires series resistor to limit IB ≤ 200 mA DC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood applications per stress test requirements, including temperature cycling and HTRB. |
| Three hFE grades | BCX55-10T (63–160), BCX55-16T (100–250), BCX55T (63–250) - Enables precise gain matching in production batches. |
| High Ptot scalability | 1100 mW with 6 cm² copper - Delivers >2× power handling vs. standard footprint, reducing need for external heatsinks. |
| Low VCE(sat) | ≤500 mV at IC/IB = 10 - Minimizes conduction loss and self-heating in saturated-switching configurations. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Pass transistor in adjustable 3-terminal linear regulators delivering up to 1 A output. IC Role / Device Role / Timing Role: NPN power pass element controlling output voltage via base bias from error amplifier. Use Value: Stable hFE and low VCE(sat) ensure <1% load regulation error and ≤1.2 W dissipation at 1 A/5 V dropout. |
Use Scenario: High-current buffer stage driving the gate of N-channel power MOSFETs in motor control or SMPS half-bridges. IC Role / Device Role / Timing Role: Current-amplifying switch translating logic-level signals into ≥500 mA gate charge/discharge pulses. Use Value: 2 A peak current capability and 155 MHz fT enable <100 ns turn-on/off transitions for 100 kHz+ switching frequencies. |
| Low-Side Switches | Power Management |
|
Use Scenario: Load switch controlling 12–48 V DC loads such as solenoids, fans, or LED arrays in automotive body electronics. IC Role / Device Role / Timing Role: Ground-referenced switching element activated by microcontroller GPIO or dedicated driver IC. Use Value: AEC-Q101 qualification and 60 V VCEO support direct integration into 24 V/48 V vehicle networks without additional protection. |
Use Scenario: Current-sense amplifier front-end or precision current mirror in battery management and power monitoring ICs. IC Role / Device Role / Timing Role: Matched NPN pair configured for accurate current replication or differential sensing. Use Value: Tight hFE binning (63–160) and low base-emitter voltage drift (<1 V at 500 mA) ensure ±2% current matching over –40 to +125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCX55-16TF | hFE = 100–250 (higher gain, tighter low-end bound) | Better suited for low-base-drive designs where IB < 10 mA is required at full IC | Select when minimizing base drive current is critical and gain consistency at low IC matters more than cost. |
| ZTX653STZ | TO-92 package, VCEO = 60 V, IC = 1 A, hFE = 100–300, but Ptot = 1 W max on PCB | Limited thermal performance; unsuitable for sustained 1 A operation without heatsink | Use only in space-constrained legacy through-hole designs where SMT is not feasible and power < 0.5 W. |
Compared with BCX55-10TF, BCX55-16TF offers higher guaranteed minimum hFE for reduced base drive overhead, while ZTX653STZ trades SMT manufacturability and thermal capability for through-hole compatibility-making BCX55-10TF optimal for automotive SMT power stages requiring AEC-Q101 compliance and 1 A continuous duty.
Availability
BCX55-10TF is available at Aetrix Electronics and suitable for automotive body control modules, industrial linear regulators, and MOSFET gate driver circuits requiring stable component supply, AEC-Q101 qualification, and SOT89 thermal performance.
Supply support for BCX55-10TF 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BCX55T series belongs to Nexperia's AEC-Q101-qualified power transistor portfolio, engineered for robustness in automotive power management, industrial switching, and linear regulation where thermal resilience and parametric consistency are essential.
FAQ
What is the maximum allowable junction temperature for BCX55-10TF?
The absolute maximum junction temperature (Tj) is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent degradation. Derating is required above 25 °C ambient: Ptot decreases linearly to zero at 150 °C case temperature when mounted on a 6 cm² copper pad.
Is BCX55-10TF compatible with lead-free reflow soldering profiles?
Yes-BCX55-10TF is qualified for lead-free reflow per JEDEC J-STD-020. The recommended peak temperature is 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. Figure 16 in the datasheet provides the exact SOT89 footprint and solder mask layout for reliable attachment.
How does the hFE binning affect circuit design?
BCX55-10TF guarantees hFE between 63 and 160 at VCE = 2 V and IC = 150 mA. Designers must size base resistors for worst-case gain (63) to ensure saturation under all conditions, while verifying thermal limits at best-case gain (160) where base current may increase unintentionally.
Can BCX55-10TF replace BCX54-10TF in existing designs?
No-BCX54-10TF is a PNP complement with opposite polarity and different pinout (Emitter/Collector swapped). Substituting it would reverse current flow and likely damage the circuit. Use BCX52-10TF as the verified PNP counterpart if polarity inversion is required.
BCX55-10TF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 63 @ 150mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX55-10TF FAQ
1.How can I place an order for BCX55-10TF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX55-10TF 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 BCX55-10TF reliable?
The price and inventory of BCX55-10TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX55-10TF is usually 5 days.
3.What payment methods are accepted for BCX55-10TF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX55-10TF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX55-10TF?
BCX55-10TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX55-10TF 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 BCX55-10TF?
For technical support, including BCX55-10TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX55-10TF requirements.
6.How does Aetrix verify that BCX55-10TF is sourced from the original manufacturer or authorized distributors?
All BCX55-10TF 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 BCX55-10TF meets industry standards.
7.What is the process for return or replacement of BCX55-10TF?
All BCX55-10TF units undergo pre-shipment inspection (PSI). If there is an issue with BCX55-10TF, 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 BCX55-10TF part is unused and in its original packaging.
Return procedure for BCX55-10TF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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