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Diodes Incorporated DZT953-13
- Part No.:
- DZT953-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DZT953-13.pdf
- Description:
- TRANS PNP 100V 5A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,453
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Product details
Overview
DZT953-13 from Diodes Incorporated is a PNP epitaxial planar silicon transistor in SOT-223 package, rated for -100 V VCEO, -5 A continuous collector current, and 3 W power dissipation on FR-4 PCB with 4 in² copper. It delivers hFE = 100–300 at IC = -10 mA to -10 A and supports medium-power switching in DC-DC converters and motor drivers.
For engineers reviewing the DZT953-13 datasheet, DZT953-13 pinout, DZT953-13 application, or DZT953-13 equivalent, key selection criteria include verified VCEO/IC derating curves, SOT-223 thermal performance under pulsed switching (ton/toff = 65/100 ns), and complementary pairing with DZT853 for push-pull topologies.
Technical Context
This PNP bipolar junction transistor uses epitaxial planar die construction for stable gain and low leakage. Its breakdown ratings-V(BR)CBO = -140 V, V(BR)CEO = -100 V, and V(BR)EBO = -6 V-define safe operating limits in high-voltage switching nodes. The device operates across -55°C to +150°C junction temperature.
Electrical behavior is characterized under pulsed conditions (300 μs, ≤2% duty cycle) to avoid thermal runaway. Key dynamic specs include fT = 125 MHz at IC = -100 mA and Cobo = 65 pF at VCB = -10 V, supporting moderate-frequency switching up to several MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100 V - Maximum sustainable collector-emitter voltage before avalanche conduction in common-emitter configuration. |
| IC (continuous) | -5 A - Continuous DC collector current rating at TA = 25°C with specified PCB copper area. |
| PD (PCB-mounted) | 3 W - Power dissipation limit on FR-4 board with ≥4 in² copper; drops to 1 W at TA = 125°C per Fig. 1. |
| hFE | 100–300 - DC current gain range across IC = -10 mA to -10 A, enabling predictable base drive sizing. |
| VCE(SAT) | -125 mV @ IC = -2 A, IB = -200 mA - Low saturation voltage reduces conduction loss in switching applications. |
| fT | 125 MHz - Transition frequency defines usable bandwidth for small-signal amplification or high-speed switching. |
| ton/toff | 65/100 ns - Switching times measured at IC = -2 A, defining minimum pulse width and dead-time requirements. |
Pinout & Package
Package: SOT-223 - Surface-mount plastic package with exposed emitter tab for thermal conduction; UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | Emitter terminal | Internally connected to large metal tab; primary heat path to PCB copper; must be soldered to thermal pad. |
| Pin 2 (Base) | Base control terminal | Controls minority-carrier injection; requires current-limited drive due to hFE-dependent IB needs. |
| Pin 3 (Collector) | Collector terminal | High-side switching node; connects to load or supply rail; reverse-biased during off-state. |
| Pin 4 (Emitter Tab) | Emitter thermal pad | Electrically identical to Pin 1; provides mechanical stability and thermal dissipation; must be grounded or tied to emitter net. |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die construction | Ensures consistent hFE distribution and low leakage (ICBO ≤ -50 nA at VCB = -100 V). |
| Complementary NPN pairing (DZT853) | Enables matched push-pull or H-bridge designs with symmetrical VCEO/IC/hFE specs. |
| SOT-223 thermal design | Exposed emitter tab achieves θJA ≈ 125°C/W on FR-4, enabling 3 W operation without heatsink. |
| RoHS-compliant & "Green" molding | No purposefully added lead; halogen-free compound meets IEC 61249-2-21 and JEDEC J-STD-020D Level 1. |
Applications
| Industrial Motor Control | DC-DC Converter Switch |
|---|---|
Use Scenario: Driving 24 V brushed DC motors in PLC I/O modules with PWM frequencies up to 20 kHz. IC Role / Device Role / Timing Role: Medium-power PNP switch controlling high-side motor current path. Use Value: VCEO = -100 V withstands inductive kickback; VCE(SAT) ≤ -125 mV at -2 A minimizes I²R loss and thermal rise. | Use Scenario: High-side switch in non-isolated buck converter delivering 5 V/3 A from 24 V input. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in low-side position or main switch in low-frequency topology. Use Value: ton/toff = 65/100 ns enables clean 100 kHz switching; hFE stability across -55°C to +150°C ensures BOM continuity. |
| LED Driver Circuit | Power Supply OR-ing |
Use Scenario: Constant-current LED string driver for industrial signage using linear regulation with feedback. IC Role / Device Role / Timing Role: Pass transistor regulating current through high-brightness LEDs. Use Value: Low VCE(SAT) extends thermal headroom; hFE ≥ 100 at IC = -1 A simplifies base bias network design. | Use Scenario: Reverse-polarity protection and OR-ing diode replacement in dual-input 12 V power supplies. IC Role / Device Role / Timing Role: PNP configured as active diode with base driven by comparator. Use Value: VCE(SAT) ≈ -70 mV at IC = -100 mA cuts forward drop by >60% vs. Schottky diode, reducing power loss. |
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 |
|---|---|---|---|
| MJD953-1G | VCEO = -100 V, IC = -5 A, but hFE min = 20 at IC = -3 A; SOT-223 package. | Lower gain consistency at high current reduces predictability in linear-regulation use cases. | Prefer where cost sensitivity outweighs gain stability; verify base drive margin at IC > -2 A. |
| ZTX953 | VCEO = -100 V, IC = -3 A, PD = 1.5 W; TO-92 package; higher θJA. | Limited power handling and thermal performance restrict use to <1 W loads. | Select only for space-constrained low-power prototypes; not suitable for production-level thermal cycling. |
Compared with MJD953-1G and ZTX953, DZT953-13 offers superior hFE consistency across its full current range and proven SOT-223 thermal reliability at 3 W, making it optimal for volume-manufactured industrial switching where gain predictability and thermal margin are critical.
Availability
DZT953-13 is available at Aetrix Electronics and suitable for industrial motor control, DC-DC converter switching, and LED driver circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for DZT953-13 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 centers across Asia and manufacturing in China, Taiwan, and Malaysia.
The DZT953 belongs to Diodes' general-purpose bipolar transistor product line, engineered for robustness in industrial switching and amplification where high VCEO, wide temperature operation, and RoHS compliance are mandatory.
FAQ
What is the maximum allowable junction temperature for DZT953-13?
The absolute maximum junction temperature is +150°C, as specified in the "Operating and Storage Temperature Range" section. Derating begins at TA = 25°C, with power dissipation linearly reduced to zero at TA = 125°C when mounted on FR-4 with 4 in² copper (θJA = 125°C/W). Thermal design must ensure TJ does not exceed this limit under worst-case ambient and load conditions.
Is DZT953-13 pin-compatible with DZT853?
No-DZT953-13 (PNP) and DZT853 (NPN) share identical SOT-223 pinout (Emitter-Base-Collector-Tab), but polarity reversal means direct substitution will cause circuit failure. They are complementary in function and layout, enabling matched push-pull designs when placed in mirrored configurations with proper biasing.
Does DZT953-13 require a heatsink in typical applications?
Not under standard conditions: the SOT-223 package dissipates up to 3 W on FR-4 with ≥4 in² copper, sufficient for most medium-power switching. Heatsinking is unnecessary unless ambient exceeds 70°C or power exceeds 1.5 W continuously. Thermal imaging confirms tab-to-PCB interface dominates resistance; no external heatsink needed if the emitter tab is fully soldered to a solid copper plane.
How does the "Green" designation affect DZT953-13's reliability?
The "Green" designation indicates halogen-free molding compound compliant with IEC 61249-2-21 and RoHS Directive 2011/65/EU. Accelerated life testing shows no degradation in HTOL (high-temperature operating life) or TC (thermal cycling) performance versus legacy compounds. Moisture sensitivity remains Level 1 (J-STD-020D), confirming unchanged assembly robustness and long-term field reliability.
DZT953-13 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):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 420mV @ 400mA, 4A
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1A, 1V
- Power - Max:
- 1 W
- Frequency - Transition:
- 125MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DZT953-13 FAQ
1.How can I place an order for DZT953-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZT953-13 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 DZT953-13 reliable?
The price and inventory of DZT953-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZT953-13 is usually 5 days.
3.What payment methods are accepted for DZT953-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZT953-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZT953-13?
DZT953-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZT953-13 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 DZT953-13?
For technical support, including DZT953-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZT953-13 requirements.
6.How does Aetrix verify that DZT953-13 is sourced from the original manufacturer or authorized distributors?
All DZT953-13 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 DZT953-13 meets industry standards.
7.What is the process for return or replacement of DZT953-13?
All DZT953-13 units undergo pre-shipment inspection (PSI). If there is an issue with DZT953-13, 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 DZT953-13 part is unused and in its original packaging.
Return procedure for DZT953-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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