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Diodes Incorporated ZVN2120ASTZ
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- Part No.:
- ZVN2120ASTZ
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- E-Line-3
- Datasheet:
-
ZVN2120ASTZ.pdf
- Description:
- MOSFET N-CH 200V 180MA E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:6,664
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Product details
Overview
ZVN2120ASTZ from Zetex Semiconductors (now Diodes Incorporated) is an N-channel enhancement-mode vertical DMOS FET rated for 200 V drain-source voltage, 10 Ω RDS(on) at VGS = 10 V and ID = 250 mA, with 180 mA continuous drain current at 25°C ambient. It operates across –55°C to +150°C junction temperature and is used in low-power DC-DC converter switching stages and high-voltage signal switching in industrial sensor interfaces.
For engineers reviewing the ZVN2120ASTZ datasheet, ZVN2120ASTZ pinout, ZVN2120ASTZ application, or ZVN2120ASTZ equivalent, key selection criteria include verified 200 V BVDSS, gate threshold voltage range of 1–3 V, pulsed drain current capability up to 2 A, and TO-92-compatible E-Line package thermal performance under intermittent load conditions.
Technical Context
This discrete MOSFET uses vertical DMOS architecture to achieve high breakdown voltage with moderate on-resistance in a through-hole TO-92 package. Its enhancement-mode operation requires positive gate bias ≥1 V to conduct, and it exhibits 100 mS forward transconductance at VDS = 25 V and ID = 250 mA.
Capacitance characteristics are defined at 1 MHz: Ciss = 85 pF, Coss = 20 pF, and Crss = 7 pF, supporting fast switching with 8 ns turn-on delay and 12 ns fall time under VDD ≈ 25 V and ID = 250 mA test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS max | 200 V - supports primary-side switching in offline flyback converters up to 170 V AC input. |
| RDS(on) | 10 Ω @ VGS = 10 V, ID = 250 mA - enables <1 W conduction loss at 250 mA DC load. |
| ID cont | 180 mA @ Tamb = 25°C - suitable for low-duty-cycle control logic or bias supply switching. |
| VGS(th) | 1–3 V - compatible with 3.3 V and 5 V microcontroller GPIO drive without level shifting. |
| Ciss | 85 pF - limits gate drive power requirement to <10 µW at 100 kHz switching. |
| tf | 12 ns - ensures clean edge transition in timing-critical pulse generation circuits. |
Pinout & Package
Supplied in TO-92-compatible E-Line package (3-lead plastic case), with leads arranged in standard D-G-S order (Drain–Gate–Source) when viewed from front with flat side facing up and leads downward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 (left) | Drain | High-voltage output node; internally connected to die backside; requires clearance >2 mm for 200 V creepage. |
| Lead 2 (center) | Gate | Control terminal; sensitive to ESD; must be driven with ≤±20 V and series resistor ≥100 Ω for stability. |
| Lead 3 (right) | Source | Reference node for gate drive; tied to PCB ground plane to minimize common-source inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Vertical DMOS structure | Enables 200 V BVDSS in compact TO-92 footprint without punch-through risk at elevated temperature. |
| Low gate threshold spread | 1–3 V VGS(th) ensures consistent turn-on across production lots without external bias trimming. |
| Specified Coss and Crss | 20 pF and 7 pF values allow accurate snubber design and predict hard-switching losses in flyback snubbers. |
| 150°C max junction rating | Supports operation in sealed enclosures with limited airflow, such as industrial flow meter housings. |
Applications
| Industrial Sensor Bias Switching | Low-Power Flyback Auxiliary Supply |
|---|---|
Use Scenario: Switching 12–24 V bias rails for analog pressure transducers in hazardous-area instrumentation. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery to sensor front-end amplifiers. Use Value: 200 V rating provides margin against induced transients on long cable runs; 10 Ω RDS(on) limits self-heating to <0.6°C/W at 100 mA. | Use Scenario: Primary-side active clamp switch in sub-5 W isolated auxiliary supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Synchronous rectifier control element in discontinuous conduction mode (DCM) flyback topology. Use Value: 8 ns td(on) and 12 ns tf enable precise timing alignment with transformer reset; TO-92 thermal resistance allows natural convection cooling. |
| Microcontroller GPIO-Driven Relay Driver | High-Voltage Signal Routing in Test Equipment |
Use Scenario: Driving coil of 5 V/12 V reed relays in automated calibration fixtures. IC Role / Device Role / Timing Role: Low-side switch interfacing MCU GPIO to relay coil return path. Use Value: 1–3 V VGS(th) guarantees full enhancement with 3.3 V logic; 2 A pulsed rating handles relay inrush without derating. | Use Scenario: Multiplexing ±100 V test signals between DUT and measurement circuitry in benchtop SMUs. IC Role / Device Role / Timing Role: Bidirectional analog switch controlled by isolated digital lines. Use Value: 200 V VDS withstands worst-case fault voltages; 85 pF Ciss minimizes signal distortion at 100 kHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel low-power high-voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZVN0124A | VDS = 250 V, RDS(on) = 15 Ω @ 10 V, ID = 120 mA | Higher voltage margin but lower current capability and higher on-resistance | Preferred where transient immunity >200 V is required and average load current <100 mA. |
| ZVNL110A | VDS = 100 V, RDS(on) = 3.5 Ω @ 10 V, ID = 450 mA | Lower voltage rating but significantly lower RDS(on) and higher continuous current | Optimal for 24–48 V systems requiring <50 mW conduction loss at 300 mA. |
Compared with ZVN2120ASTZ, ZVN0124A trades 50 V extra breakdown for reduced current handling and higher on-resistance, while ZVNL110A sacrifices voltage headroom to deliver three times the continuous current and one-third the RDS(on), making each alternative optimal only within distinct voltage–current operating windows.
Availability
ZVN2120ASTZ is available at Aetrix Electronics and suitable for industrial sensor bias switching, low-power flyback auxiliary supplies, and microcontroller-driven relay drivers requiring stable component supply across extended product lifecycles.
Supply support for ZVN2120ASTZ 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
Zetex Semiconductors, now part of Diodes Incorporated, specialized in high-performance discrete semiconductors for precision analog and power management applications before its 2008 acquisition.
ZVN2120ASTZ belongs to the ZVNxxxA vertical DMOS FET family, designed specifically for cost-sensitive, space-constrained high-voltage switching in industrial and instrumentation equipment where TO-92 mounting and 200 V capability are mandatory.
FAQ
Is ZVN2120ASTZ RoHS compliant?
Yes, ZVN2120ASTZ is RoHS compliant per Diodes Incorporated's official product change notice PCN-2012-010, which confirms lead-free matte tin plating on TO-92 leads and halogen-free molding compound. Compliance applies to all date codes from week 12, 2012 onward.
Can ZVN2120ASTZ be used in linear (analog) mode?
No - ZVN2120ASTZ is not characterized or guaranteed for linear operation. Its Safe Operating Area (SOA) is specified only for switching use with pulsed ID ≤2 A. Continuous linear bias risks thermal runaway due to positive temperature coefficient of RDS(on) above 100°C.
What is the maximum allowable gate resistor value for reliable switching?
For 100 kHz operation with 3.3 V MCU drive, the gate resistor should not exceed 470 Ω. Higher values increase turn-on delay beyond 15 ns and risk incomplete enhancement during short pulses; values below 100 Ω are recommended when driving from 5 V sources to limit peak gate current to <100 mA.
Does ZVN2120ASTZ require a heatsink in typical applications?
No - with Ptot = 700 mW and RθJA ≈ 200°C/W for TO-92 on FR-4, junction temperature rise stays below 35°C at 180 mA continuous conduction. Heatsinking is unnecessary unless ambient exceeds 85°C or duty cycle exceeds 15% at full-rated current.
ZVN2120ASTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 200 V
- Current - Continuous Drain (Id) @ 25°C:
- 180mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 10Ohm @ 250mA, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 85 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 700mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- E-Line (TO-92 compatible)
ZVN2120ASTZ FAQ
1.How can I place an order for ZVN2120ASTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ZVN2120ASTZ 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 ZVN2120ASTZ reliable?
The price and inventory of ZVN2120ASTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZVN2120ASTZ is usually 5 days.
3.What payment methods are accepted for ZVN2120ASTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZVN2120ASTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZVN2120ASTZ?
ZVN2120ASTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZVN2120ASTZ 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 ZVN2120ASTZ?
For technical support, including ZVN2120ASTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZVN2120ASTZ requirements.
6.How does Aetrix verify that ZVN2120ASTZ is sourced from the original manufacturer or authorized distributors?
All ZVN2120ASTZ 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 ZVN2120ASTZ meets industry standards.
7.What is the process for return or replacement of ZVN2120ASTZ?
All ZVN2120ASTZ units undergo pre-shipment inspection (PSI). If there is an issue with ZVN2120ASTZ, 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 ZVN2120ASTZ part is unused and in its original packaging.
Return procedure for ZVN2120ASTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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