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Diodes Incorporated DCP68-13
- Part No.:
- DCP68-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DCP68-13.pdf
- Description:
- TRANS NPN 20V 1A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,285
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Product details
Overview
DCP68-13 from Diodes Incorporated is a 20V NPN medium-power transistor in SOT223 package, rated for 1.0A continuous collector current and 1W power dissipation, with DC current gain (hFE) of 50–375 depending on operating point, and VCE(sat) ≤ 0.5V at IC = 1.0A/IB = 100mA - used in automotive body control modules for relay driver stages.
For engineers reviewing the DCP68-13 datasheet, DCP68-13 pinout, DCP68-13 application, or DCP68-13 equivalent, key selection criteria include VCEO = 20V, IC = 1.0A, RθJA = 125°C/W, SOT223 thermal performance, and hFE consistency across 5mA–1A bias points.
Technical Context
This NPN bipolar junction transistor uses epitaxial planar die construction for stable gain and low leakage. It operates with VCEO = 20V, VCB0 = 25V, and VEB0 = 5.0V, supporting switching and linear amplification up to fT = 330MHz at IC = 100mA/VCE = 5V.
Its SOT223 package enables surface-mount assembly with 0.112g mass and UL 94V-0 molding compound. Thermal resistance is specified at 125°C/W under JEDEC-standard 1oz copper FR4 layout, and it meets AEC-Q101 requirements for automotive-grade discrete transistors when qualified per PPAP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 20 V - Maximum safe collector-emitter voltage before breakdown under open-base condition |
| IC (continuous) | 1.0 A - Continuous collector current rating defining maximum steady-state load drive capability |
| PD | 1 W - Power dissipation limit on standard PCB layout, directly constraining thermal design margin |
| hFE | 50–375 - DC current gain range across test conditions (5mA to 1A), critical for base drive sizing |
| VCE(sat) | ≤ 0.5 V @ IC=1.0A/IB=100mA - Saturation voltage determining conduction loss in switch-mode operation |
| fT | 330 MHz @ IC=100mA/VCE=5V - Transition frequency indicating usable bandwidth in RF or high-speed switching |
| RθJA | 125 °C/W - Junction-to-ambient thermal resistance under defined PCB conditions, used for temperature rise calculation |
Pinout & Package
SOT223 package: 4-pin thermally enhanced plastic case with exposed collector tab (Pin 3), molded in halogen-free green compound, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | E | Current return path; connected to ground or low-side reference in common-emitter configurations |
| Pin 2 (Base) | B | Control input requiring ~100mA drive for full saturation at 1A collector load |
| Pin 3 (Collector) | C | Main power output terminal; electrically and thermally tied to exposed metal tab for heat sinking |
| Pin 4 (Collector Tab) | C | Secondary collector connection; must be soldered to large copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die construction | Enables tight hFE distribution and low leakage (ICBO ≤ 100nA, IEBO ≤ 10µA) across temperature |
| SOT223 thermal performance | 125°C/W RθJA allows 1W operation with <125°C junction rise on minimal PCB copper |
| AEC-Q101 qualification support | Manufactured in IATF 16949 facilities; PPAP-capable for automotive body electronics applications |
| Lead-free & green compliance | Fully RoHS 3 compliant with <900ppm Br/Cl, <1000ppm Sb/Be, meeting automotive environmental standards |
Applications
| Automotive Relay Driver | DC Motor Control Stage |
|---|---|
Use Scenario: Driving 12V automotive relays in body control units where load currents reach 800mA. IC Role / Device Role / Timing Role: NPN switch providing low-VCE(sat) conduction path between battery rail and relay coil. Use Value: 0.5V saturation drop minimizes power loss (0.4W at 800mA), reducing thermal stress in confined ECUs. | Use Scenario: H-bridge half-bridge stage controlling brushed DC motors in HVAC actuators. IC Role / Device Role / Timing Role: Medium-power switching element handling bidirectional 1A peak motor current pulses. Use Value: 330MHz fT supports clean turn-off during PWM commutation at up to 20kHz without tail current issues. |
| LED Current Regulator | Industrial Sensor Interface |
Use Scenario: Constant-current sink for high-brightness LED strings in dashboard backlighting. IC Role / Device Role / Timing Role: Linear current regulator using emitter-degeneration feedback with 1% hFE tolerance. Use Value: Stable hFE over -40°C to +125°C ensures ±5% LED current accuracy without external sensing resistors. | Use Scenario: Signal-level amplification of analog sensor outputs (e.g., pressure transducers) in engine bay modules. IC Role / Device Role / Timing Role: Low-noise small-signal amplifier biased at 5mA with 60 typical hFE. Use Value: 125°C/W thermal resistance allows operation at 150°C ambient when mounted on heatsinked PCB zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX653 | VCEO = 25V, IC = 1.5A, SOT89 package, RθJA = 100°C/W | Higher power handling but larger footprint; requires different pad layout | Select when >1W dissipation or tighter thermal margin is required |
| MJD127 | VCEO = 100V, IC = 2A, TO-252 package, hFE = 20–120 | Higher voltage rating but lower gain consistency and slower fT (10MHz) | Select only for high-voltage industrial switching where gain linearity is secondary |
Compared with ZTX653 and MJD127, DCP68-13 offers optimal balance of gain stability (50–375), thermal efficiency (125°C/W in compact SOT223), and automotive qualification readiness - making it preferred for space-constrained 12V/24V body electronics.
Availability
DCP68-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drivers, LED lighting systems, and sensor interface circuits requiring stable component supply and AEC-Q101-aligned manufacturing traceability.
Supply support for DCP68-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The DCP68 series belongs to Diodes' automotive-qualified bipolar transistor product line, engineered specifically for medium-power switching and amplification in harsh-environment vehicle subsystems including lighting, power distribution, and actuator control.
FAQ
What is the maximum allowable junction temperature for DCP68-13?
The DCP68-13 has an operating junction temperature range of –55°C to +150°C. Its absolute maximum TJ is 150°C; sustained operation above this threshold risks permanent degradation. Derating is required above 25°C ambient based on RθJA = 125°C/W and actual PCB copper area.
Is DCP68-13 pin-compatible with DCP69?
No - DCP68-13 (NPN) and DCP69 (PNP) share the same SOT223 package and complementary functionality, but their pinouts differ: DCP68-13 uses E-B-C-Tab while DCP69 uses C-B-E-Tab. Direct substitution without board revision will cause circuit failure.
Does DCP68-13 require a heatsink in 1W operation?
Not necessarily - with its 125°C/W RθJA on standard 1oz FR4, DCP68-13 reaches ~150°C junction at 25°C ambient when dissipating 1W. A modest copper pour (≥250 mm²) or localized thermal relief typically suffices; forced air or metal-core PCB is needed only above 75°C ambient.
Can DCP68-13 be used in linear regulator applications?
Yes - its VCEO = 20V, hFE = 50–375, and low VCE(sat) support use as pass transistor in adjustable linear regulators. However, thermal design must account for worst-case dropout × load current; SOA limits apply at high VCE/IC combinations outside datasheet safe operating area curves.
DCP68-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- 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:
- 85 @ 500mA, 1V
- Power - Max:
- 1 W
- Frequency - Transition:
- 330MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DCP68-13 FAQ
1.How can I place an order for DCP68-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DCP68-13 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 DCP68-13 reliable?
The price and inventory of DCP68-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCP68-13 is usually 5 days.
3.What payment methods are accepted for DCP68-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCP68-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCP68-13?
DCP68-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCP68-13 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 DCP68-13?
For technical support, including DCP68-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCP68-13 requirements.
6.How does Aetrix verify that DCP68-13 is sourced from the original manufacturer or authorized distributors?
All DCP68-13 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 DCP68-13 meets industry standards.
7.What is the process for return or replacement of DCP68-13?
All DCP68-13 units undergo pre-shipment inspection (PSI). If there is an issue with DCP68-13, 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 DCP68-13 part is unused and in its original packaging.
Return procedure for DCP68-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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