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

Nexperia USA Inc. BC53-16PAS-QX

Name: BC53-16PAS-QX
Brand: Nexperia USA Inc.
SKU: BC53-16PAS-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC53-16PAS-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-UDFN Exposed Pad

Datasheet:: BC53-16PAS-QX.pdf

Description:: TRANS PNP 80V 1A DFN2020D-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC53-16PAS-Q from Nexperia is a PNP medium power transistor in an ultra-thin DFN2020D-3 (SOT1061D) leadless package, rated for −80 V V_CEO, −1 A continuous collector current, and 100–250 DC current gain (h_FE) at V_CE = −2 V and I_C = −150 mA. It delivers high thermal performance via exposed collector pad and supports automotive-grade reliability per AEC-Q101.

For engineers reviewing the BC53-16PAS-Q datasheet, BC53-16PAS-Q pinout, BC53-16PAS-Q application, or BC53-16PAS-Q equivalent, this device is selected for high-side switching, MOSFET driver stages, and linear voltage regulation where compact size, solder-joint inspectability, and stable h_FE across temperature are critical.

Technical Context

This PNP bipolar junction transistor operates with emitter-grounded configuration and exhibits low V_CE(sat) of −500 mV at I_C = −500 mA / I_B = −50 mA, enabling efficient saturation in power control paths. Its f_T of 145 MHz supports moderate-speed switching up to ~10 MHz in practical designs.

The DFN2020D-3 package integrates side-wettable flanks for AOI compatibility and provides R_th(j-a) as low as 76 K/W with 4-layer PCB and 1 cm² collector pad - a key enabler for thermally constrained automotive and portable power management layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V - Supports operation in 48 V automotive systems with margin against load-dump transients.
I_C (continuous)	−1 A - Enables direct drive of small solenoids, LED strings, or gate resistors in discrete power stages.
h_FE	100–250 at −150 mA - Ensures predictable base drive requirements across production lot and temperature (−55 °C to 100 °C).
V_CE(sat)	−500 mV max at −500 mA - Minimizes conduction loss in high-side switch applications with <0.25 W dissipation at full current.
P_tot (4L PCB, 1 cm² pad)	1.65 W - Delivers >2× power handling vs. standard SOT23 under identical board conditions.
f_T	145 MHz - Allows use in PWM frequencies up to 10 MHz with adequate gain margin in driver feedback loops.

Pinout & Package

BC53-16PAS-Q uses the DFN2020D-3 (SOT1061D) package: 2.0 mm × 2.0 mm × 0.65 mm body, leadless, with side-wettable flanks for automated optical inspection and enhanced thermal transfer via exposed collector pad.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input; requires current-limited drive (max I_B = −0.3 A) to avoid secondary breakdown.
2	Emitter (E)	Common reference node; connected to system ground or positive rail in high-side configurations.
3	Collector (C)	Power output terminal; electrically and thermally tied to exposed copper pad on PCB bottom side.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive underhood environments (−40 °C to 125 °C ambient, 150 °C junction).
Side-wettable flanks	Enables 100% automated optical inspection (AOI) of solder joints without X-ray.
Exposed collector pad	Reduces R_th(j-a) to 76 K/W - improves thermal headroom by >40% vs. standard SOT23-3.
Two h_FE grades	BC53-16PAS-Q (100–250) enables tighter base resistor tolerance in production without binning.
Ultra-thin profile	0.65 mm max height allows stacking under shields or integration into space-constrained modules.

Applications

Linear Voltage Regulators

Battery-Driven Devices

Use Scenario: Pass transistor in adjustable LDOs delivering 3.3 V/1 A from 12 V battery input.

IC Role / Device Role / Timing Role: PNP pass element controlling output voltage via base-emitter bias network.

Use Value: Low V_CE(sat) minimizes dropout voltage; high h_FE reduces base drive current and quiescent loss.

Use Scenario: Load switch enabling/disabling power to Bluetooth module in portable medical sensor.

IC Role / Device Role / Timing Role: High-side switch controlled by microcontroller GPIO through base resistor.

Use Value: AEC-Q101 qualification ensures long-term reliability in field-deployed devices; DFN2020D-3 saves >60% PCB area vs. SOT23.

MOSFET Drivers

High-Side Switches

Use Scenario: Level-shifting stage driving N-channel MOSFET gate in buck converter bootstrap circuit.

IC Role / Device Role / Timing Role: Fast-switching PNP pull-down element complementing NMOS pull-up in totem-pole driver.

Use Value: 145 MHz f_T supports clean 1–5 MHz gate drive edges; low C_c (15 pF) limits Miller feedback.

Use Scenario: Power distribution switch for 24 V industrial I/O module with reverse-polarity protection.

IC Role / Device Role / Timing Role: Main current-handling transistor in active high-side configuration with current-sense resistor.

Use Value: −80 V rating accommodates 24 V systems with surge margin; exposed collector pad sustains 1.65 W at T_amb = 85 °C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-16W	SOT323 package (2.1 × 1.25 mm); lower P_tot (0.3 W), no side-wettable flanks, R_th(j-a) = 298 K/W.	Limited to low-power signal switching; unsuitable for >200 mA continuous loads or automotive AOI requirements.	Select when cost is primary and thermal/power demands are minimal; not drop-in for BC53-16PAS-Q layouts.
PN2907A	TO-92 through-hole; V_CEO = −60 V, I_C = −600 mA, no AEC-Q101 qualification.	Not suitable for surface-mount automation or automotive underhood use; larger footprint and higher assembly cost.	Choose only for legacy through-hole designs or non-automotive prototyping where thermal derating is acceptable.

Compared with BC807-16W and PN2907A, BC53-16PAS-Q uniquely combines AEC-Q101 compliance, 1 A capability in 2 mm², side-wettable flanks for AOI, and 1.65 W power handling - making it the sole option for space-constrained, thermally demanding automotive power switches.

Availability

BC53-16PAS-Q is available at Aetrix Electronics and suitable for linear voltage regulators, battery-driven devices, and high-side switches requiring stable component supply, automotive-grade reliability, and compact thermal management.

Supply support for BC53-16PAS-Q 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 efficiency technologies - delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

BC53-16PAS-Q belongs to the BC53xPAS-Q series of AEC-Q101-qualified PNP transistors designed specifically for automotive power management, high-side switching, and driver applications where miniaturization, thermal robustness, and process reliability are mandatory.

FAQ

What is the maximum allowable junction temperature for BC53-16PAS-Q?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation above this limit risks permanent degradation of h_FE and increased leakage. Derating curves in Figure 1 confirm usable power drops linearly above 25 °C ambient, reaching zero at 150 °C for standard FR4 mounting.

Does BC53-16PAS-Q require special reflow profile due to its DFN2020D-3 package?

Yes - the DFN2020D-3 package requires peak reflow temperatures of 260 °C for ≤30 seconds, with ramp rates per JEDEC J-STD-020. Figure 12 provides the exact solder land pattern (1.1 mm × 0.35 mm pads, 0.25 mm solder mask opening), and side-wettable flanks must be inspected using AOI with angled lighting to verify fillet formation.

How does the h_FE range of BC53-16PAS-Q compare to BC53-10PAS-Q?

BC53-16PAS-Q guarantees h_FE = 100–250 at V_CE = −2 V and I_C = −150 mA, while BC53-10PAS-Q specifies 63–160 under identical conditions. This wider, higher-gain band allows smaller base resistors and lower drive current in precision current-source or regulator applications.

Can BC53-16PAS-Q replace BC557 in existing designs?

No - BC557 is a TO-92 PNP transistor with V_CEO = −45 V and I_C = −100 mA, whereas BC53-16PAS-Q has −80 V rating and −1 A capability but requires complete PCB redesign due to DFN2020D-3 footprint, thermal pad layout, and soldering process. Electrical substitution is unsafe without verifying layout, thermal, and drive compatibility.

BC53-16PAS-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-UDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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

Voltage - Collector Emitter Breakdown (Max):: 80 V

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

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 2V

Power - Max:: 420 mW

Frequency - Transition:: 145MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DFN2020D-3

BC53-16PAS-QX FAQ

1.How can I place an order for BC53-16PAS-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BC53-16PAS-QX 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 BC53-16PAS-QX reliable?

The price and inventory of BC53-16PAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC53-16PAS-QX is usually 5 days.

3.What payment methods are accepted for BC53-16PAS-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC53-16PAS-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC53-16PAS-QX?

BC53-16PAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC53-16PAS-QX 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 BC53-16PAS-QX?

For technical support, including BC53-16PAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC53-16PAS-QX requirements.

6.How does Aetrix verify that BC53-16PAS-QX is sourced from the original manufacturer or authorized distributors?

All BC53-16PAS-QX 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 BC53-16PAS-QX meets industry standards.

7.What is the process for return or replacement of BC53-16PAS-QX?

All BC53-16PAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with BC53-16PAS-QX, 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 BC53-16PAS-QX part is unused and in its original packaging.

Return procedure for BC53-16PAS-QX:

1.Submit a request within 90 days.

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

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