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Diodes Incorporated DPLS4140E-13
- Part No.:
- DPLS4140E-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DPLS4140E-13.pdf
- Description:
- TRANS PNP 140V 4A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,364
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Product details
Overview
DPLS4140E-13 from Diodes Incorporated is a low VCE(SAT) PNP bipolar junction transistor in SOT-223 package, rated for -140 V VCEO, -4 A continuous collector current, and 1 W power dissipation at TA = 25°C. It serves as a medium-power switching or linear amplification device in high-voltage DC-DC converters, industrial motor controls, and relay drivers.
For engineers reviewing the DPLS4140E-13 datasheet, DPLS4140E-13 pinout, DPLS4140E-13 application, or DPLS4140E-13 equivalent, key selection criteria include verified VCE(SAT) ≤ -75 mV at IC = -1 A / IB = -100 mA, hFE ≥ 45 at IC = -3 A, and thermal resistance RθJA = 125 °C/W on FR-4 PCB.
Technical Context
This PNP transistor employs epitaxial planar die construction for stable gain and low leakage. Its breakdown ratings-V(BR)CBO = -180 V, V(BR)CEO = -140 V, and V(BR)EBO = -7 V-support operation in high-voltage off-state conditions while maintaining safe margin against avalanche.
Switching performance is characterized by ton = 85 ns and toff = 430 ns under IC = -1 A, VCC = -50 V, and base drive of ±100 mA. fT = 150 MHz at IC = -100 mA confirms suitability for medium-frequency switching applications up to ~10–20 MHz with adequate gain margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -140 V - Maximum allowable collector-emitter voltage before breakdown in common-emitter configuration |
| IC (cont.) | -4 A - Continuous collector current rating defining maximum steady-state load-handling capability |
| VCE(SAT) | -75 mV @ IC = -1 A, IB = -100 mA - Low saturation voltage enables <100 mW conduction loss per switch event |
| hFE | 45 min @ IC = -3 A, VCE = -5 V - Confirmed DC current gain sufficient for direct TTL/CMOS-compatible base drive |
| RθJA | 125 °C/W - Thermal resistance from junction to ambient on standard FR-4 PCB, enabling ~0.8 W usable power at 75°C ambient |
| fT | 150 MHz - Unity-gain bandwidth confirming usable small-signal amplification or fast-switching capability up to ~15 MHz |
| toff | 430 ns - Measured turn-off delay under specified pulsed conditions, critical for PWM frequency selection in SMPS |
Pinout & Package
Package: SOT-223, surface-mount, 4-pin (3 active + 1 thermal tab), molded green plastic, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Main current exit path; electrically connected to thermal tab for enhanced heat transfer |
| 2 & 4 (Collector) | C | Parallel-connected collector terminals; both must be routed to high-voltage rail for full current capacity and thermal relief |
| 3 (Base) | B | Control input; requires negative bias relative to emitter to forward-bias PNP junction |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(SAT) | VCE(SAT) ≤ -75 mV at IC = -1 A ensures <0.075 W conduction loss, reducing thermal stress in high-duty-cycle switches |
| High VCEO rating | -140 V supports use in 100 V-class bus systems with 40% safety margin against transients and ripple |
| SOT-223 thermal performance | Thermal tab (Pin 2/4) provides direct PCB copper connection, enabling >0.8 W dissipation with 2 cm² 2-oz copper pour |
| Lead-free & RoHS compliant | Matte tin annealed over copper leadframe meets J-STD-020D Level 1 MSL and eliminates Pb-based solder compatibility concerns |
Applications
| Industrial Motor Control | High-Voltage DC-DC Converter |
|---|---|
Use Scenario: Driving gate of N-channel MOSFETs in half-bridge configurations for 48–100 V motor inverters. IC Role / Device Role / Timing Role: PNP high-side level shifter and current amplifier, translating logic-level signals to -100 V referenced gate drive. Use Value: VCE(SAT) ≤ -75 mV minimizes power loss during active gate pull-down, improving efficiency and thermal stability. | Use Scenario: Active clamp or synchronous rectifier control in flyback or forward converters operating from 60–120 V input rails. IC Role / Device Role / Timing Role: Medium-power switch controlling auxiliary winding or clamp capacitor discharge path. Use Value: -140 V VCEO and -180 V VCBO ensure reliable blocking during voltage spikes exceeding 100 V. |
| Relay Driver Circuit | Linear Regulator Pass Element |
Use Scenario: Direct-driving 24–48 V DC relays with coil currents up to 3.5 A in PLC output modules. IC Role / Device Role / Timing Role: High-current saturated switch replacing discrete Darlington pairs to reduce component count. Use Value: hFE ≥ 45 at IC = -3 A allows single-stage base drive from microcontroller GPIO without additional buffer stage. | Use Scenario: Pass transistor in adjustable negative linear regulator delivering up to -3 A at -12 to -48 V output. IC Role / Device Role / Timing Role: Series pass element dissipating up to 1 W continuously under worst-case dropout conditions. Use Value: RθJA = 125 °C/W on FR-4 enables stable operation at 75°C ambient with minimal heatsinking. |
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 |
|---|---|---|---|
| MJD44H11T4 | VCEO = -100 V (lower), VCE(SAT) = -1.5 V @ IC = -8 A (higher), SOT-223 package | Not suitable for >100 V bus systems; higher saturation loss limits efficiency in high-duty-cycle use | Select only if operating voltage ≤ 80 V and cost sensitivity outweighs thermal performance |
| ZTX951 | VCEO = -120 V, IC = -3 A, TO-92 package, RθJA ≈ 200 °C/W | Limited to <0.5 W continuous dissipation; unsuitable for PCB-mounted thermal management | Use only in low-power, space-constrained designs where SOT-223 footprint is unavailable |
Compared with MJD44H11T4 and ZTX951, DPLS4140E-13 uniquely balances -140 V blocking, -75 mV saturation, and SOT-223 thermal capability-enabling compact, efficient, and high-reliability switching in 100 V-class industrial power stages.
Availability
DPLS4140E-13 is available at Aetrix Electronics and suitable for industrial motor control, high-voltage DC-DC conversion, and relay driver circuits requiring stable component supply and long-term manufacturability.
Supply support for DPLS4140E-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 distribution operations across Asia, Europe, and North America.
The DPLS4140E belongs to Diodes' high-voltage PNP transistor product line, engineered specifically for robust medium-power switching in industrial automation, power supplies, and motor drives where reliability under sustained thermal and electrical stress is critical.
FAQ
What is the maximum safe operating temperature for DPLS4140E-13?
The DPLS4140E-13 has an operating junction temperature range of -55°C to +150°C. With RθJA = 125 °C/W on FR-4, it can safely dissipate 0.8 W at 75°C ambient. Exceeding 150°C junction temperature risks permanent degradation of hFE and increased leakage.
Is DPLS4140E-13 pin-compatible with other SOT-223 PNP transistors?
No-DPLS4140E-13 uses a nonstandard SOT-223 pinout where Pins 2 and 4 are internally connected collectors, Pin 1 is emitter, and Pin 3 is base. This differs from standard SOT-223 PNP layouts (e.g., MJD44H11T4), requiring PCB layout verification before substitution.
Can DPLS4140E-13 be used in linear amplification mode?
Yes-its hFE = 100–300 at IC = -10 mA and fT = 150 MHz support Class-A audio or signal amplification up to ~10 MHz. However, thermal derating must be applied: at 100°C ambient, max IC drops to ~1.2 A to maintain TJ ≤ 150°C.
Does DPLS4140E-13 require a heatsink in typical applications?
A dedicated heatsink is not required for ≤0.8 W dissipation on FR-4 with ≥2 cm² 2-oz copper pour connected to Pins 2/4. For >0.8 W or high ambient temperatures (>60°C), a small external heatsink or thermal via array (≥6×0.3 mm vias) is recommended to maintain TJ < 130°C.
DPLS4140E-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 4 A
- Voltage - Collector Emitter Breakdown (Max):
- 140 V
- Vce Saturation (Max) @ Ib, Ic:
- 360mV @ 300mA, 3A
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1A, 5V
- Power - Max:
- 1 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DPLS4140E-13 FAQ
1.How can I place an order for DPLS4140E-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DPLS4140E-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 DPLS4140E-13 reliable?
The price and inventory of DPLS4140E-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPLS4140E-13 is usually 5 days.
3.What payment methods are accepted for DPLS4140E-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPLS4140E-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPLS4140E-13?
DPLS4140E-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPLS4140E-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 DPLS4140E-13?
For technical support, including DPLS4140E-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPLS4140E-13 requirements.
6.How does Aetrix verify that DPLS4140E-13 is sourced from the original manufacturer or authorized distributors?
All DPLS4140E-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 DPLS4140E-13 meets industry standards.
7.What is the process for return or replacement of DPLS4140E-13?
All DPLS4140E-13 units undergo pre-shipment inspection (PSI). If there is an issue with DPLS4140E-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 DPLS4140E-13 part is unused and in its original packaging.
Return procedure for DPLS4140E-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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