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Diodes Incorporated DZT751-13
- Part No.:
- DZT751-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DZT751-13.pdf
- Description:
- TRANS PNP 60V 3A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,958
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Product details
Overview
DZT751-13 from Diodes Incorporated is a PNP bipolar junction transistor (BJT) optimized for medium-power switching and amplification, featuring low VCE(SAT) of –0.08 V at IC = –1 A / IB = –100 mA, VCEO = –60 V, IC = –3 A continuous, hFE = 300 at IC = –50 mA, and SOT-223 surface-mount package - used in DC-DC converter output stages and industrial relay drivers.
For engineers reviewing the DZT751-13 datasheet, DZT751-13 pinout, DZT751-13 application, or DZT751-13 equivalent, key selection criteria include verified low-saturation voltage under high-current drive, thermal resistance (RθJA = 125 °C/W on FR-4), complementary NPN pairing with DZT651, and RoHS-compliant lead-free plating validated per MIL-STD-202.
Technical Context
This PNP BJT employs epitaxial planar die construction to achieve stable gain and low saturation voltage across temperature. Its VCEO = –60 V and IC = –3 A rating support medium-power load switching in 24 V industrial control rails, while fT = 100–145 MHz enables use in moderate-speed digital interface buffering.
The device operates over –55 °C to +150 °C and exhibits ICBO ≤ –0.1 μA at VCB = –60 V, ensuring low leakage in standby-critical applications. Its SOT-223 package integrates a thermally enhanced emitter-tab footprint compatible with standard FR-4 PCB layouts per AP02001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | –60 V: Maximum safe collector-emitter voltage before breakdown in common-emitter configuration. |
| IC (cont.) | –3 A: Continuous collector current rating defining maximum DC load drive capability. |
| VCE(SAT) | –0.08 V @ IC = –1 A / IB = –100 mA: Confirmed low conduction loss enabling <100 mW dissipation at 1 A switch operation. |
| hFE | 300 @ IC = –50 mA: High DC current gain allowing low-base-drive current for efficient gate/base control. |
| fT | 100–145 MHz: Transition frequency confirming usable bandwidth up to ~100 MHz for signal amplification or fast switching. |
| RθJA | 125 °C/W (FR-4): Thermal resistance value specifying junction-to-ambient rise per watt - critical for heatsink-less PCB thermal design. |
| Tj Range | –55 to +150 °C: Validated operating junction temperature range supporting industrial and automotive under-hood environments. |
Pinout & Package
Package: SOT-223 - thermally enhanced plastic surface-mount package with exposed emitter tab (Pin 3), rated for 1 W power dissipation on FR-4 PCB per note 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Primary current return path; electrically and thermally connected to large copper pad for heat sinking. |
| 2 (Base) | B | Control terminal; requires –100 mA base drive for full saturation at –1 A collector current. |
| 3 (Collector) | C | Main high-side current path; internally tied to metal tab for improved thermal conduction. |
| 4 (Collector) | C | Second collector connection - paralleled with Pin 3 to reduce bond-wire inductance and improve current sharing. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(SAT) | –0.08 V at IC = –1 A ensures <80 mW conduction loss - reduces thermal stress in compact power stages. |
| High hFE | 300 at IC = –50 mA enables microcontroller-level base drive without external buffer stages. |
| SOT-223 thermal performance | RθJA = 125 °C/W on FR-4 allows 1 W operation without heatsink in ambient ≤50 °C. |
| RoHS & "Green" compliance | Lead-free matte tin plating and halogen-free molding compound meet IPC-J-STD-020C Level 1 moisture sensitivity. |
Applications
| DC-DC Converter Output Stage | Industrial Relay Driver |
|---|---|
Use Scenario: Switching 24 V/2 A loads in isolated buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Medium-power PNP switch controlling high-side output current path. Use Value: Low VCE(SAT) minimizes dropout and self-heating, improving efficiency and reliability over discrete alternatives. | Use Scenario: Driving 24 V DC coil relays in PLC I/O modules. IC Role / Device Role / Timing Role: High-current saturated switch interfacing microcontroller GPIO to inductive load. Use Value: 3 A IC rating and robust SOA allow direct drive without external flyback protection complexity. |
| LED String Current Regulator | Linear Voltage Regulator Pass Element |
Use Scenario: Constant-current sink for 12 V, 1.5 A LED arrays in signage systems. IC Role / Device Role / Timing Role: Linear current-regulating pass transistor in feedback-controlled loop. Use Value: Stable hFE and low VCE(SAT) enable precise current setting with minimal headroom voltage. | Use Scenario: Pass element in 5 V/2 A linear regulator for noise-sensitive analog subsystems. IC Role / Device Role / Timing Role: Series-pass transistor dissipating up to 12 W during dropout conditions. Use Value: SOT-223 thermal design supports 1 W continuous dissipation on standard PCB - simplifies thermal layout vs. TO-220. |
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 |
|---|---|---|---|
| ZXT751MPK | VCEO = –60 V, IC = –2.5 A, VCE(SAT) = –0.15 V @ –1 A - higher saturation voltage, lower current rating. | Less suitable for >2 A continuous loads; better suited for space-constrained designs due to SOT-89 footprint. | Select when board area is constrained and 2.5 A rating suffices; avoid where <100 mV VCE(SAT) is required. |
| MJD751T4G | VCEO = –60 V, IC = –3 A, VCE(SAT) = –0.25 V @ –2 A - higher saturation loss, TO-220 package. | Requires heatsink for >0.5 W dissipation; incompatible with automated SMT assembly. | Choose only for legacy through-hole designs or where TO-220 mechanical mounting is mandatory. |
Compared with ZXT751MPK and MJD751T4G, DZT751-13 delivers the lowest VCE(SAT) in an SMT-compatible SOT-223 package, enabling higher efficiency and simplified thermal management in automated production.
Availability
DZT751-13 is available at Aetrix Electronics and suitable for DC-DC converters, industrial relay drivers, and LED current regulators requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for DZT751-13 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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The DZT751 belongs to Diodes' low-VCE(SAT) PNP transistor product line, engineered specifically for high-efficiency medium-power switching in space- and thermal-constrained SMT applications.
FAQ
What is the maximum safe operating temperature for DZT751-13?
The DZT751-13 has a specified junction temperature range of –55 °C to +150 °C. Its thermal resistance RθJA is 125 °C/W on FR-4 PCB (per note 3), meaning at 1 W dissipation and 50 °C ambient, junction temperature reaches 175 °C - exceeding rating. Derating per Fig. 1 is required above 50 °C ambient.
Is DZT751-13 pin-compatible with its NPN complement DZT651?
Yes - both DZT751-13 (PNP) and DZT651 (NPN) use identical SOT-223 packages with matching pinout: Pin 1 = Emitter, Pin 2 = Base, Pins 3 & 4 = Collector. This enables direct complementary pair implementation in H-bridge or push-pull output stages without layout redesign.
Does DZT751-13 require external base resistors in switching applications?
Yes - base current must be actively limited. With hFE = 300 at low current but dropping to ~80 at IC = –2 A, a typical design uses a 1 kΩ resistor between MCU GPIO and base to deliver ~4.5 mA base current, ensuring saturation at up to ~1.5 A collector load without overdriving.
Can DZT751-13 be used in linear regulator configurations?
Yes - its VCEO = –60 V, IC = –3 A, and SOA curves support linear operation. However, power dissipation must remain within derated limits: at 2 A load and 5 V dropout, 10 W dissipation exceeds SOT-223 capability. Use only for ≤1 W applications or with forced-air cooling and extended copper pour.
DZT751-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 600mV @ 300mA, 3A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 500mA, 2V
- Power - Max:
- 1 W
- Frequency - Transition:
- 145MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DZT751-13 FAQ
1.How can I place an order for DZT751-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZT751-13 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 DZT751-13 reliable?
The price and inventory of DZT751-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZT751-13 is usually 5 days.
3.What payment methods are accepted for DZT751-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZT751-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZT751-13?
DZT751-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZT751-13 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 DZT751-13?
For technical support, including DZT751-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZT751-13 requirements.
6.How does Aetrix verify that DZT751-13 is sourced from the original manufacturer or authorized distributors?
All DZT751-13 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 DZT751-13 meets industry standards.
7.What is the process for return or replacement of DZT751-13?
All DZT751-13 units undergo pre-shipment inspection (PSI). If there is an issue with DZT751-13, 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 DZT751-13 part is unused and in its original packaging.
Return procedure for DZT751-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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