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Diodes Incorporated ZXT953KTC
- Part No.:
- ZXT953KTC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
ZXT953KTC.pdf
- Description:
- TRANS PNP 100V 5A TO-252-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,878
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Product details
Overview
ZXT953KTC from Diodes Incorporated is a 100V PNP medium-power bipolar transistor optimized for high-current switching in automotive and industrial power circuits. It delivers -5A continuous collector current, -100V VCEO, 67mΩ typical saturation resistance, and high DC gain (100 min @ -1A), enabling efficient low-loss operation in DC-DC converters and motor control H-bridges.
For engineers reviewing the ZXT953KTC datasheet, ZXT953KTC pinout, ZXT953KTC application, or ZXT953KTC equivalent, key selection criteria include its AEC-Q101 qualification, TO252 package thermal performance (RθJL = 1.8°C/W), low VCE(sat) down to -30mV at -0.1A/-10mA drive, and robust safe operating area up to -100V/-10A pulsed.
Technical Context
This PNP transistor operates as a high-voltage, medium-power switch with emitter-grounded configuration. Its design emphasizes low conduction loss via ultra-low saturation voltage and high current gain stability across temperature (-55°C to +150°C) and load range (-0.1A to -5A).
It supports fast switching with 110ns turn-on and 460ns turn-off times under -2A load, and features integrated ESD protection (4kV HBM). The device uses a thermally enhanced TO252 (DPAK) package with exposed collector pad for direct PCB heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100V - Enables use in 48V automotive and industrial bus systems with margin against transients. |
| IC (cont.) | -5A - Supports sustained switching of medium-power loads without forced cooling on 25mm² copper. |
| VCE(sat) | -30mV typ. @ -0.1A/-10mA - Minimizes conduction loss and self-heating in high-duty-cycle applications. |
| hFE | 100 min @ -1A - Ensures reliable base drive margin and stable gain across production lots and temperature. |
| RθJL | 1.8°C/W - Allows direct thermal coupling to PCB copper, enabling compact heatsinkless designs. |
| ESD HBM | 4,000V - Provides robust handling tolerance during automated assembly and board-level integration. |
| fT | 125MHz - Supports switching frequencies up to ~1–2 MHz in resonant or PWM-based topologies. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, thermally enhanced with exposed collector pad. Molded green compound, UL 94V-0 rated, 0.34g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current source terminal | Connected to positive rail in high-side switch configurations; requires low-inductance routing for fast turn-off. |
| Base (B) | Control input | Receives negative current to saturate; requires ≥-500mA drive capability for full -5A conduction. |
| Collector (C) | Current sink terminal | Exposed metal pad - must be soldered to large copper pour for thermal management and low impedance return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power modules, including engine control, body electronics, and ADAS subsystems. |
| Low VCE(sat) | As low as -30mV enables <100mW conduction loss at 0.1A, reducing thermal stress in space-constrained layouts. |
| High ICM | -10A peak rating supports surge handling in motor startup, inverter short-circuit events, and load dump conditions. |
| Green construction | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), RoHS-compliant finish for eco-sensitive supply chains. |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter |
|---|---|
Use Scenario: Driving solenoids, relays, and LED arrays in door modules and lighting control units. IC Role / Device Role / Timing Role: High-side PNP switch controlling 12V/24V loads with reverse-polarity protection. Use Value: -100V VCEO withstands load-dump transients; AEC-Q101 qualification ensures reliability over 15-year vehicle life. |
Use Scenario: Synchronous rectification or primary-side switching in isolated flyback and forward converters. IC Role / Device Role / Timing Role: Medium-power PNP switch in non-isolated buck or boost stages operating up to 48V input. Use Value: 67mΩ RSAT reduces conduction loss by >30% vs. standard PNP transistors at 2–3A, improving efficiency above 90%. |
| Motor Drive Half-Bridge | Inverter Power Stage |
Use Scenario: Upper-leg switch in brushed DC motor H-bridge for HVAC actuators and seat positioners. IC Role / Device Role / Timing Role: Complementary PNP partner to NPN low-side switches in dual-drive configurations. Use Value: Matched hFE and fast tON/tOFF minimize shoot-through risk; TO252 thermal design supports 100% duty cycle at 3A. |
Use Scenario: Low-frequency (≤20kHz) inverter stage for AC induction motor drives and UPS systems. IC Role / Device Role / Timing Role: High-voltage PNP switch handling bidirectional current in three-phase leg configurations. Use Value: -140V BVCBO rating provides margin against inductive kickback; SOA curve supports 100ms -10A pulses during fault recovery. |
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 |
|---|---|---|---|
| ZXT951KTC | Lower VCEO (-80V), same TO252 package and -5A rating | Restricted to ≤24V systems; unsuitable for 48V automotive or industrial bus applications | Select when cost sensitivity outweighs voltage margin and system voltage remains below 36V. |
| MMBT6427LT1G | SO-23 package, -100V VCEO, but only -1A IC and higher VCE(sat) (-300mV @ -1A) | Limited to low-power signal switching; cannot replace ZXT953KTC in ≥2A load paths | Use only for auxiliary biasing or logic-level translation where thermal and current demands are minimal. |
Compared with ZXT953KTC, ZXT951KTC trades voltage headroom for lower cost in 24V systems, while MMBT6427LT1G sacrifices current capacity and thermal performance for small-outline packaging-neither offers drop-in replacement capability in high-current, high-voltage roles.
Availability
ZXT953KTC is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converters, and motor drive half-bridges requiring stable component supply and long-term lifecycle support.
Supply support for ZXT953KTC 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.
ZXT953KTC belongs to Diodes' high-voltage PNP transistor product line, engineered specifically for AEC-Q101-compliant automotive power switching and industrial motor control applications demanding robust SOA and thermal performance.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The ZXT953KTC has an operating junction temperature range of -55°C to +150°C. For continuous operation at full -5A current, thermal design must maintain TJ ≤150°C using the specified RθJL = 1.8°C/W path to PCB copper, typically requiring ≥50mm × 50mm 2oz copper for ambient temperatures up to 85°C.
Can ZXT953KTC be used in parallel configurations?
Yes, but only with matched devices and individual base resistors to ensure current sharing. The device's positive temperature coefficient for VCE(sat) aids thermal stability, but layout symmetry and identical trace lengths are critical. Derate total current by 20% per additional device beyond two.
Is the TO252 footprint compatible with standard DPAK land patterns?
Yes-the ZXT953KTC uses the industry-standard TO252 (DPAK) outline per AP02002, with 2.286mm lead pitch and 6.10mm × 6.58mm body dimensions. Recommended pad layout follows AP02001: 2.5mm × 5.5mm collector pad, 0.8mm × 1.2mm for emitter/base, with thermal vias under the collector pad.
Does ZXT953KTC require a base-emitter resistor for turn-off?
Yes-a base-emitter shunt resistor (typically 1–10kΩ) is recommended to ensure rapid turn-off and prevent leakage-induced conduction. Without it, stored charge and stray capacitance can cause slow decay and unintended conduction, especially at elevated temperatures or in noisy environments.
ZXT953KTC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 390mV @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1A, 1V
- Power - Max:
- 4.2 W
- Frequency - Transition:
- 125MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
ZXT953KTC FAQ
1.How can I place an order for ZXT953KTC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXT953KTC 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 ZXT953KTC reliable?
The price and inventory of ZXT953KTC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXT953KTC is usually 5 days.
3.What payment methods are accepted for ZXT953KTC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXT953KTC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXT953KTC?
ZXT953KTC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXT953KTC 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 ZXT953KTC?
For technical support, including ZXT953KTC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXT953KTC requirements.
6.How does Aetrix verify that ZXT953KTC is sourced from the original manufacturer or authorized distributors?
All ZXT953KTC 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 ZXT953KTC meets industry standards.
7.What is the process for return or replacement of ZXT953KTC?
All ZXT953KTC units undergo pre-shipment inspection (PSI). If there is an issue with ZXT953KTC, 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 ZXT953KTC part is unused and in its original packaging.
Return procedure for ZXT953KTC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXT953KTC Tags
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