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

Diodes Incorporated DCX53-16-13

Name: DCX53-16-13
Brand: Diodes Incorporated
SKU: DCX53-16-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DCX53-16-13

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: DCX53-16-13.pdf

Description:: TRANS PNP 80V 1A SOT-89-3

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Product details

Overview

DCX53-16-13 from Diodes Incorporated is a PNP epitaxial planar silicon transistor in SOT89-3L package, rated for -80 V V_CEO, -1 A continuous collector current, and 1 W power dissipation at T_A = 25°C; it delivers h_FE = 100–250 at I_C = -150 mA, V_CE = -2 V, and is optimized for medium-power switching in industrial DC-DC converters.

For engineers reviewing the DCX53-16-13 datasheet, DCX53-16-13 pinout, DCX53-16-13 application, or DCX53-16-13 equivalent, key selection criteria include verified V_CEO derating above 25°C, SOT89-3L thermal resistance (R_θJA = 125°C/W), JEDEC-compliant lead-free plating, and pulsed-test validation of V_CE(SAT) ≤ -0.5 V at I_C = -500 mA/I_B = -50 mA.

Technical Context

This PNP bipolar junction transistor operates with fixed-base current control and exhibits well-defined saturation characteristics under pulsed conditions (300 μs width, ≤2% duty cycle). Its breakdown ratings-V_(BR)CBO = -100 V, V_(BR)CEO = -80 V, and V_(BR)EBO = -5 V-define safe operating limits for reverse-biased junctions in high-side switch configurations.

The device's f_T = 200 MHz at I_C = -50 mA/V_CE = -5 V supports moderate-frequency switching, while C_obo = 25 pF at V_CB = -10 V enables predictable turn-off behavior in hard-switched topologies. Thermal performance is validated on FR-4 PCB per AP02001 pad layout.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-80 V - Maximum collector-emitter voltage before avalanche in common-emitter configuration; sets upper limit for supply rail in high-side switch designs.
I_C (cont.)	-1 A - Continuous DC collector current rating; defines maximum steady-state load drive capability at T_A ≤ 25°C with adequate heatsinking.
P_D	1 W - Power dissipation at T_A = 25°C; requires thermal derating above ambient per Fig. 1 (e.g., ~0.5 W at 100°C).
h_FE	100–250 - DC current gain range at I_C = -150 mA/V_CE = -2 V; determines required base drive current for target collector load.
V_CE(SAT)	≤ -0.5 V - Saturation voltage at I_C = -500 mA/I_B = -50 mA; directly impacts conduction loss and junction temperature rise.
f_T	200 MHz - Current gain-bandwidth product at I_C = -50 mA/V_CE = -5 V; indicates usable frequency limit for small-signal amplification or fast switching.

Pinout & Package

Package: SOT89-3L, surface-mount plastic case with UL 94V-0 flammability rating, moisture sensitivity level 1, and matte tin-plated copper leadframe for RoHS-compliant soldering.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	E	Current exit path in PNP operation; connected to higher potential node in high-side switch applications.
2 (Base)	B	Control terminal for forward-biasing emitter-base junction; requires negative current relative to emitter to turn on.
3 (Collector)	C	Current entry path; tied to load and supply rail in common-emitter switching configurations.
4 (Collector tab)	C (thermal & electrical)	Exposed metal tab electrically connected to collector and serves as primary heat path to PCB copper pour.

Key Features

Feature	Design Value
Epitaxial planar die construction	Enables tight parameter distribution and stable h_FE across production lots, critical for consistent base drive design.
SOT89-3L thermal performance	R_θJA = 125°C/W on FR-4 PCB per AP02001 layout-supports 1 W dissipation with minimal heatsink area.
Lead-free / RoHS-compliant plating	Matte tin annealed over copper leadframe meets MIL-STD-202 solderability requirements and eliminates Pb-based reflow concerns.
Pulsed electrical characterization	All ON/OFF parameters measured at 300 μs pulse width, ≤2% duty cycle-ensures validity for repetitive switching use cases.

Applications

Industrial DC-DC Converters

High-Side Load Switches

Use Scenario: Regulating 24 V input to 5 V/3.3 V output in isolated flyback or non-isolated buck-derived topologies.

IC Role / Device Role / Timing Role: PNP transistor used as synchronous rectifier driver or auxiliary bias supply switch in primary-side control circuits.

Use Value: V_CEO = -80 V provides 3× margin over 24 V rail, while V_CE(SAT) ≤ -0.5 V minimizes conduction loss in low-duty-cycle gate drive paths.

Use Scenario: Enabling/disabling 12–48 V loads (e.g., sensors, actuators) in programmable logic controllers (PLCs).

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

Use Value: h_FE = 100–250 ensures reliable saturation with ≤5 mA base current, reducing MCU I/O loading and simplifying drive circuitry.

Automotive Body Control Modules

LED Driver Circuits

Use Scenario: Controlling solenoids, relays, or window lift motors in 12 V automotive systems with transient protection.

IC Role / Device Role / Timing Role: Medium-power switching element in discrete driver stage, interfacing with CAN/LIN transceivers.

Use Value: V_(BR)CBO = -100 V withstands load-dump transients up to ISO 7637-2 Pulse 5a (12 V system), ensuring robustness without external clamping.

Use Scenario: Constant-current LED string switching in signage or interior lighting with PWM dimming.

IC Role / Device Role / Timing Role: Low-frequency PWM-controlled current sink in linear LED driver topology.

Use Value: f_T = 200 MHz exceeds typical PWM frequencies (<10 kHz), eliminating gain roll-off and ensuring sharp turn-on/turn-off edges.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZTX653	V_CEO = -60 V, h_FE = 100–300, SOT89-3L package	Lower V_CEO margin limits use in >48 V systems; otherwise identical thermal and pinout compatibility	Select when V_CEO ≥ -80 V is not required and wider h_FE spread is acceptable.
MMBT4403	V_CEO = -40 V, I_C = -600 mA, SOT23-3 package, R_θJA = 200°C/W	Lower voltage/current ratings and inferior thermal performance restrict use to <12 V, <500 mA loads	Choose only for space-constrained low-power applications where SOT23 footprint is mandatory.

Compared with ZTX653 and MMBT4403, DCX53-16-13 uniquely balances -80 V ruggedness, 1 A current capability, and SOT89-3L thermal efficiency-making it the only option among the three qualified for 24–48 V industrial switching with sustained 1 W dissipation.

Availability

DCX53-16-13 is available at Aetrix Electronics and suitable for industrial DC-DC converters, high-side load switches, and automotive body control modules requiring stable component supply and long-term manufacturing continuity.

Supply support for DCX53-16-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for industrial, computing, and automotive markets.

The DCX53 series belongs to Diodes' general-purpose bipolar transistor product line, engineered for cost-effective, thermally robust medium-power switching in space-constrained surface-mount applications.

FAQ

What is the maximum allowable junction temperature for DCX53-16-13?

The absolute maximum junction temperature is +150°C, as specified in the Operating and Storage Temperature Range (T_j). This limit applies under all operating conditions, including pulsed and continuous modes. Derating begins immediately above T_A = 25°C per the R_θJA = 125°C/W thermal resistance and Fig. 1 power dissipation curve.

Is DCX53-16-13 pin-compatible with DCX53-13?

Yes-both share identical SOT89-3L package outline, pin numbering (1=E, 2=B, 3=C, 4=C tab), and mechanical dimensions. The "-13" and "-16-13" suffixes denote different h_FE bins (DCX53-13: h_FE = 63–120; DCX53-16-13: h_FE = 100–250), but pinout, ratings, and thermal behavior are fully interchangeable.

Can DCX53-16-13 be used in linear amplifier configurations?

Yes-it is characterized for small-signal amplification with f_T = 200 MHz and h_FE stability across I_C = -5 mA to -500 mA. However, its 1 W power limit and thermal resistance require careful bias point selection and heatsinking to avoid thermal runaway in Class-A operation.

Does DCX53-16-13 meet AEC-Q101 for automotive use?

No-the device is not AEC-Q101 qualified. While its -55°C to +150°C operating range and robust V_(BR)CBO rating support automotive environments, Diodes Incorporated does not list DCX53-16-13 in its AEC-Q101-certified portfolio. For qualified alternatives, consult Diodes' Automotive Bipolar Transistor family (e.g., DXT3906).

DCX53-16-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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:: 1 W

Frequency - Transition:: 200MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89-3

DCX53-16-13 FAQ

1.How can I place an order for DCX53-16-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DCX53-16-13 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 DCX53-16-13 reliable?

The price and inventory of DCX53-16-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCX53-16-13 is usually 5 days.

3.What payment methods are accepted for DCX53-16-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX53-16-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DCX53-16-13?

DCX53-16-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DCX53-16-13 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 DCX53-16-13?

For technical support, including DCX53-16-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX53-16-13 requirements.

6.How does Aetrix verify that DCX53-16-13 is sourced from the original manufacturer or authorized distributors?

All DCX53-16-13 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 DCX53-16-13 meets industry standards.

7.What is the process for return or replacement of DCX53-16-13?

All DCX53-16-13 units undergo pre-shipment inspection (PSI). If there is an issue with DCX53-16-13, 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 DCX53-16-13 part is unused and in its original packaging.

Return procedure for DCX53-16-13:

1.Submit a request within 90 days.

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

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