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Diodes Incorporated DCX69-25-13
- Part No.:
- DCX69-25-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
DCX69-25-13.pdf
- Description:
- TRANS PNP 20V 1A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,034
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Product details
Overview
DCX69-25-13 from Diodes Incorporated is a PNP bipolar junction transistor in SOT-89 package, rated for -20 V VCEO, -1.0 A IC, and 1 W power dissipation at TA = 25°C, with hFE = 160–375 at IC = -500 mA and VCE = -1.0 V, used in medium-power switching and linear amplification circuits in automotive body control modules and industrial power supplies.
For engineers reviewing the DCX69-25-13 datasheet, DCX69-25-13 pinout, DCX69-25-13 application, or DCX69-25-13 equivalent, key selection criteria include verified PNP polarity, SOT-89 thermal performance (RθJA = 125 °C/W), AEC-Q101 qualification, and confirmed DC current gain range across temperature and bias conditions.
Technical Context
This device operates as a medium-power PNP BJT with epitaxial planar die construction, supporting continuous collector currents up to -1.0 A and pulsed peaks to -2.0 A. Its VCEO = -20 V and VCB0 = -25 V enable use in low-to-mid voltage DC-DC converter output stages and relay drivers.
Thermal design relies on its SOT-89 footprint with 125 °C/W junction-to-ambient resistance on FR-4 PCBs per AP02001 layout. It delivers hFE ≥160 at IC = -500 mA and maintains fT ≥40 MHz at VCE = -5 V, IC = -50 mA, supporting audio preamplifier and signal conditioning roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -20 V - Maximum safe collector-emitter voltage before breakdown under open-base condition |
| IC | -1.0 A - Continuous DC collector current rating defining maximum load drive capability |
| PD | 1 W - Power dissipation limit at 25°C ambient, derating linearly above 25°C per Fig. 1 |
| hFE | 160–375 - DC current gain range at VCE = -1.0 V, IC = -500 mA, critical for base drive sizing |
| fT | 40–200 MHz - Current gain-bandwidth product determining usable frequency limit in small-signal amplifiers |
| RθJA | 125 °C/W - Thermal resistance indicating required PCB copper area and airflow for thermal management |
| VCE(SAT) | -0.5 V max - Saturation voltage at IC = -1.0 A, IB = -100 mA, defining conduction loss in switch mode |
Pinout & Package
Package: SOT-89 molded plastic case with matte tin-plated copper leadframe; UL 94V-0 rated; moisture sensitivity level 1 per J-STD-020; weight ≈0.055 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tab) | Collector | Exposed metal tab electrically connected to collector; serves as primary heat path and must be soldered to PCB copper pour |
| 2 | Emitter | Emitter terminal; connects to ground or low-side return path in PNP switching configurations |
| 3 | Base | Control input; requires negative bias relative to emitter to turn on; typical VBE(ON) = -0.7 to -1.0 V |
| 4 | Collector | Second collector connection; internally tied to Pin 1 (tab); provides redundant current path and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and lighting drivers requiring high reliability over -55°C to +150°C |
| Green compound packaging | Halogen- and antimony-free molding compound (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) meeting RoHS 2 and ELV directives |
| SOT-89 thermal performance | 125 °C/W RθJA on standard FR-4 layout enables 0.8 W dissipation at 70°C ambient without heatsink |
| High hFE at high current | Minimum hFE = 160 at IC = -500 mA ensures stable gain in linear regulators and Class-A amplifiers |
| Low VCE(SAT) | -0.5 V max at IC = -1.0 A reduces conduction loss by >30% vs. legacy PNP transistors in 12 V load switches |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter Feedback |
|---|---|
Use Scenario: Driving 12 V solenoid valves and LED clusters in door lock and mirror control units. IC Role / Device Role / Timing Role: Medium-power PNP switch controlling load current with fast turn-off via base pull-down. Use Value: VCEO = -20 V and IC = -1.0 A support direct 12 V battery interface; AEC-Q101 qualification ensures field reliability. |
Use Scenario: Error amplifier stage in isolated flyback converters regulating 5 V/3.3 V outputs. IC Role / Device Role / Timing Role: Linear amplifier providing precise current mirroring for optocoupler feedback loop compensation. Use Value: hFE = 160–375 at IC = -500 mA enables stable loop gain across temperature; fT ≥40 MHz supports bandwidth up to 500 kHz. |
| Consumer Audio Preamp Stage | Industrial Relay Driver |
Use Scenario: Low-noise preamplifier for microphone inputs in smart speaker front-end circuits. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for gain stability. Use Value: Cobo = 17 pF minimizes high-frequency roll-off; fT ≥200 MHz at mid-current supports wideband audio fidelity. |
Use Scenario: Driving 24 V DC coil relays in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: Saturated switch with forced β = 10 to ensure robust turn-on under worst-case VBE drift. Use Value: VCE(SAT) ≤ -0.5 V limits power loss to <500 mW at 1 A; SOT-89 tab improves thermal margin during repeated actuation. |
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 |
|---|---|---|---|
| BCX69-25 | Same electrical specs (VCEO = -20 V, IC = -1.0 A, hFE = 160–375), identical SOT-89 package, but marked as active replacement per Diodes' obsolescence notice | Direct drop-in replacement with identical pinout and thermal profile; no redesign needed | Select BCX69-25 for new designs or BOM updates where DCX69-25-13 is obsolete |
| MJD2955T4G | TO-220 package, higher IC = -12 A, lower hFE = 20–70, RθJA = 30 °C/W (with heatsink), not AEC-Q101 qualified | Suitable only for non-automotive, high-current linear regulators or motor drivers requiring heatsinking | Choose only if >1 A current or >1.5 W dissipation is required; avoid for space-constrained or automotive designs |
Compared with BCX69-25 (direct replacement) and MJD2955T4G (higher-power TO-220 alternative), DCX69-25-13 offers optimal balance of AEC-Q101 compliance, SOT-89 board area efficiency, and verified hFE performance at 500 mA-making it suitable for compact, thermally constrained automotive and industrial switching where BCX69-25 is preferred for continuity and MJD2955T4G introduces unnecessary mechanical and qualification overhead.
Availability
DCX69-25-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converter feedback circuits, and consumer audio preamplifier stages requiring stable component supply despite its obsolete status through legacy channel inventory and cross-reference fulfillment.
Supply support for DCX69-25-13 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 automotive, industrial, and consumer markets with ISO/TS 16949 and ISO 14001 certifications.
DCX69-25-13 belongs to Diodes' AEC-Q101-qualified PNP transistor family designed specifically for medium-power switching and amplification in harsh-environment automotive electronics and industrial power systems.
FAQ
Is DCX69-25-13 still in production?
No. Diodes Incorporated officially discontinued DCX69-25-13 and recommends BCX69-25 as the active replacement. Aetrix Electronics maintains limited legacy stock for design continuity and last-time buys, with full traceability and date-code verification per batch.
What is the correct pin configuration for DCX69-25-13 in SOT-89?
Top view: Pin 1 (leftmost, adjacent to tab) = Collector, Pin 2 (center) = Emitter, Pin 3 (rightmost) = Base, Pin 4 (tab) = Collector. The tab is electrically connected to Pin 1 and must be soldered to a thermal pad for proper heat dissipation and electrical grounding.
Can DCX69-25-13 be used in place of BCX69-25?
Yes-DCX69-25-13 and BCX69-25 share identical electrical specifications, SOT-89 mechanical outline, pinout, and marking format (P12-25). Diodes explicitly states BCX69-25 supersedes DCX69-25 variants, enabling direct substitution without circuit modification.
Does DCX69-25-13 require derating at elevated temperatures?
Yes. Per Figure 1 in DS31264 Rev. 7, power dissipation must be linearly derated above 25°C ambient at 8 mW/°C (1 W ÷ 125 °C/W). At 70°C ambient, maximum allowable PD drops to 640 mW; PCB copper area and airflow must be validated per AP02001 layout guidelines.
DCX69-25-13 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):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 100mA, 1A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 160 @ 500mA, 1V
- 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
DCX69-25-13 FAQ
1.How can I place an order for DCX69-25-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX69-25-13 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 DCX69-25-13 reliable?
The price and inventory of DCX69-25-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCX69-25-13 is usually 5 days.
3.What payment methods are accepted for DCX69-25-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX69-25-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX69-25-13?
DCX69-25-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX69-25-13 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 DCX69-25-13?
For technical support, including DCX69-25-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX69-25-13 requirements.
6.How does Aetrix verify that DCX69-25-13 is sourced from the original manufacturer or authorized distributors?
All DCX69-25-13 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 DCX69-25-13 meets industry standards.
7.What is the process for return or replacement of DCX69-25-13?
All DCX69-25-13 units undergo pre-shipment inspection (PSI). If there is an issue with DCX69-25-13, 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 DCX69-25-13 part is unused and in its original packaging.
Return procedure for DCX69-25-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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