My Inquiry
My Account
Diodes Incorporated DZT658-13
- Part No.:
- DZT658-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DZT658-13.pdf
- Description:
- TRANS NPN 400V 0.5A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DZT658-13 from Diodes Incorporated is an NPN bipolar junction transistor in SOT-223 package, rated for 400 V VCEO, 0.5 A continuous collector current, and 1 W power dissipation at 25°C ambient. It delivers low VCE(SAT) (0.075 V @ IC=20 mA, IB=1 mA) and high hFE (min 50 @ IC=1 mA), suited for medium-power switching in offline AC/DC auxiliary supplies.
For engineers reviewing the DZT658-13 datasheet, DZT658-13 pinout, DZT658-13 application, or DZT658-13 equivalent, key selection criteria include breakdown voltage margin, saturation voltage under target load, thermal derating on FR-4 PCB, and compatibility with automated SMT placement due to its SOT-223 leadframe plating and moisture sensitivity level 1 rating.
Technical Context
This NPN transistor employs epitaxial planar die construction for stable gain and rugged high-voltage operation. Its 400 V VCBO/VCEO rating enables use in flyback snubber circuits and relay drivers where transient clamping exceeds 300 V.
Switching performance is characterized by 138 ns turn-on and 175 ns turn-off times under defined conditions (VCC=100 V, IC=100 mA, IB1=10 mA/IB2=−20 mA), supported by fT = 50 MHz and Cobo = 10 pF at 20 V, confirming suitability for <100 kHz hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 400 V - Supports operation in 230 VAC line-derived circuits with ≥2× safety margin against transients |
| IC (cont.) | 0.5 A - Enables driving loads up to ~10 W at 20 V with adequate heatsinking |
| VCE(SAT) | 0.075 V @ 20 mA/1 mA - Minimizes conduction loss in low-duty-cycle switching applications |
| hFE | 50 min @ IC=1 mA - Ensures reliable base drive design for discrete gate control of MOSFETs or IGBTs |
| RθJA | 125 °C/W - Requires ≤37.5°C ambient rise for 1 W dissipation on standard FR-4 layout per AP02001 |
| fT | 50 MHz - Validates usable bandwidth for signal amplification up to ~5 MHz with gain >1 |
Pinout & Package
Package: SOT-223, surface-mount, 4-pin (collector double-bonded), molded green compound, UL 94V-0 rated, 0.115 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current return path; electrically isolated tab in SOT-223 allows direct PCB thermal coupling |
| 2 & 4 (Collector) | C | Dual-collector configuration improves current handling and thermal spreading to copper pour |
| 3 (Base) | B | Control input requiring 1 mA drive for 20 mA collector switching; low VBE(SAT) reduces driver loss |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die | Ensures consistent hFE distribution and reduced leakage across temperature (-55°C to +150°C) |
| SOT-223 package | Enables automated pick-and-place and reflow soldering with J-STD-020C Level 1 moisture sensitivity |
| Lead-free / RoHS | Matte tin annealed over copper leadframe meets MIL-STD-202 solderability and environmental compliance |
| Low VCE(SAT) | Reduces power loss in linear-regulator pass elements or PWM-driven solenoid drivers |
Applications
| AC/DC Auxiliary Supply | Relay Driver Circuit |
|---|---|
Use Scenario: Providing bias power to PWM controllers in offline flyback converters operating from 85–265 VAC input. IC Role / Device Role / Timing Role: NPN switch controlling energy transfer into auxiliary winding during primary-side demagnetization. Use Value: 400 V VCEO withstands reflected voltage spikes; low VCE(SAT) maintains efficiency above 80% at light loads. | Use Scenario: Driving 12 V/24 V electromagnetic relays in industrial PLC output modules. IC Role / Device Role / Timing Role: Medium-current saturated switch interfacing microcontroller GPIO to relay coil. Use Value: hFE ≥50 ensures single-stage drive without external pre-amplifier; dual-collector pin lowers thermal resistance. |
| LED Constant-Current Sink | High-Voltage Signal Amplifier |
Use Scenario: Linear current regulation for high-brightness LED strings in signage with 30–60 V bus. IC Role / Device Role / Timing Role: Adjustable emitter-follower current sink controlled by DAC or potentiometer. Use Value: VCEO = 400 V accommodates string voltages up to 350 V; RθJA = 125 °C/W supports 0.3 A continuous operation with minimal heatsink. | Use Scenario: Amplifying low-level sensor signals in high-side monitoring circuits with 200 V common-mode voltage. IC Role / Device Role / Timing Role: Common-emitter amplifier stage with emitter degeneration for DC-coupled gain stability. Use Value: fT = 50 MHz enables 5 MHz bandwidth at moderate gain; VCB = 400 V prevents breakdown under high common-mode stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FZT658 | Same die, identical electrical specs, but TO-92 package (lower power dissipation, no dual-collector thermal path) | Not suitable for >0.3 W continuous dissipation or automated SMT assembly | Select only for through-hole prototyping or low-volume manual assembly where thermal demand is minimal |
| MJD122G | Higher IC (1.5 A), higher VCEO (100 V), TO-252 package, lower hFE (20 min) | Optimized for higher-current, lower-voltage motor control-not a drop-in replacement for 400 V applications | Choose when system voltage is ≤80 V and peak current exceeds 0.5 A; avoid in 230 VAC-derived designs |
Compared with FZT658 and MJD122G, DZT658-13 uniquely balances 400 V capability, SMT manufacturability, and thermal performance in compact SOT-223-making it optimal for space-constrained, medium-voltage auxiliary power stages where reliability and production scalability matter.
Availability
DZT658-13 is available at Aetrix Electronics and suitable for AC/DC auxiliary supplies, relay driver circuits, and LED constant-current sinks requiring stable component supply and long-term industrial availability.
Supply support for DZT658-13 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 and manufacturing operations across Asia and the Americas.
The DZT658 belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for robustness in off-line power conversion, industrial controls, and high-reliability switching applications where voltage margin and thermal stability are critical.
FAQ
Is DZT658-13 pin-compatible with FZT658?
No. DZT658-13 uses SOT-223 (4-pin, dual-collector) while FZT658 uses TO-92 (3-pin). Pin assignments differ: SOT-223 pins 2 & 4 are both collector, whereas TO-92 has one collector pin. PCB layout and thermal design are not interchangeable.
What is the maximum allowable case temperature for continuous operation?
The maximum junction temperature is +150°C. With RθJA = 125 °C/W on standard FR-4 and 1 W dissipation, the case temperature must remain ≤112.5°C to maintain 37.5°C margin. Derating begins at 25°C ambient per Figure 1.
Can DZT658-13 be used in linear regulator applications?
Yes, within limits: VCE must stay ≤400 V, IC ≤0.5 A, and power dissipation must be thermally managed. Its low VCE(SAT) and stable hFE support pass-element roles in low-noise, medium-voltage linear regulators up to ~300 V output.
Does DZT658-13 require a heatsink in typical SMT applications?
A dedicated heatsink is not required for ≤0.3 W dissipation on standard 1 oz copper with 1 cm² thermal pad. For 1 W operation, a minimum 2 cm² exposed copper area connected to pins 2 & 4 is necessary per Diodes' AP02001 layout guidelines to achieve full RθJA rating.
DZT658-13 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:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 400 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 10mA, 100mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 200mA, 10V
- Power - Max:
- 1 W
- Frequency - Transition:
- 50MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DZT658-13 FAQ
1.How can I place an order for DZT658-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZT658-13 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 DZT658-13 reliable?
The price and inventory of DZT658-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZT658-13 is usually 5 days.
3.What payment methods are accepted for DZT658-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZT658-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZT658-13?
DZT658-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZT658-13 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 DZT658-13?
For technical support, including DZT658-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZT658-13 requirements.
6.How does Aetrix verify that DZT658-13 is sourced from the original manufacturer or authorized distributors?
All DZT658-13 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 DZT658-13 meets industry standards.
7.What is the process for return or replacement of DZT658-13?
All DZT658-13 units undergo pre-shipment inspection (PSI). If there is an issue with DZT658-13, 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 DZT658-13 part is unused and in its original packaging.
Return procedure for DZT658-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DZT658-13 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
