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Diodes Incorporated ZXMP2120E5TA
- Part No.:
- ZXMP2120E5TA
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ZXMP2120E5TA.pdf
- Description:
- MOSFET P-CH 200V 122MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
ZXMP2120E5TA from Diodes Incorporated is a 200V P-channel enhancement-mode MOSFET in SOT25 package, rated for -122mA continuous drain current at VGS = -10V, with RDS(ON) = 28Ω and fast switching (tF = 15ns). It serves as a high-voltage active clamp switch in primary-side circuits of 48V DC-DC converters.
For engineers reviewing the ZXMP2120E5TA datasheet, ZXMP2120E5TA pinout, ZXMP2120E5TA application, or ZXMP2120E5TA equivalent, key selection criteria include its -200V VDSS, low gate threshold (-1.5V to -3.5V), thermal resistance (167°C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This trench-structured MOSFET operates in enhancement mode with negative gate control logic, requiring VGS ≤ -1.5V to initiate conduction. Its -200V breakdown voltage and 28Ω on-resistance at -10V gate drive enable robust clamping in high-voltage flyback and resonant converter topologies.
The device features low input capacitance (Ciss = 100pF) and fast turn-off dynamics (tD(OFF) = 12ns, tF = 15ns), supporting high-frequency operation while maintaining low gate drive power due to its 20nA IGSS and -1.5V to -3.5V VGS(TH) range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -200V - Withstands up to 200V drain-source reverse bias without breakdown, enabling use in 48V bus-derived high-side clamp circuits. |
| RDS(ON) | 28Ω @ VGS = -10V - Defines conduction loss in active clamp path; supports <150mW static dissipation at -122mA. |
| ID (cont) | -122mA @ TA = +25°C - Maximum continuous current under standard PCB mounting; derates linearly above 25°C per 6mW/°C. |
| VGS(TH) | -1.5V to -3.5V - Gate threshold ensures reliable turn-on with low-voltage controllers; enables direct interface with 3.3V logic-level drivers. |
| tF | 15ns - Fast fall time minimizes switching transition losses during clamp discharge, critical for >500kHz converter designs. |
| Ciss | 100pF @ VDS = -25V - Low input capacitance reduces gate drive energy and improves switching efficiency in high-frequency applications. |
| RθJA | 167°C/W - Thermal resistance defines junction-to-ambient temperature rise; requires thermal pad design for sustained >100mA operation. |
Pinout & Package
Package: SOT25 - Surface-mount plastic package with matte tin terminals, moisture sensitivity level 1, UL 94V-0 flammability rating, and 0.016g weight. Dimensions conform to Diodes Inc. outline SOT25 (L=2.80mm, W=1.60mm, H=1.10mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Current return path for P-channel conduction | Connected to high-side node or clamp capacitor; carries full pulsed clamp current (-0.7A peak). |
| Pin 2 (Gate) | Control terminal for channel modulation | Receives negative gate drive relative to source; low 20nA leakage enables stable off-state in high-impedance bias networks. |
| Pin 3 (Drain) | High-voltage output terminal | Connected to primary MOSFET drain node; withstands -200V transient spikes during clamp action. |
| Pin 4 (Source) | Redundant source connection | Internally tied to Pin 1; used for enhanced thermal and current handling in SOT25 dual-source configuration. |
| Pin 5 (Drain) | Redundant drain connection | Internally tied to Pin 3; improves thermal conduction and reduces package inductance in high-dI/dt clamp paths. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood DC-DC modules. |
| Trench MOSFET architecture | Enables simultaneous optimization of RDS(ON) and switching speed - achieves 28Ω on-resistance with 15ns fall time. |
| Low gate threshold voltage | VGS(TH) down to -1.5V allows turn-on with minimal gate drive overhead, reducing need for level-shifting in low-voltage controller designs. |
| Halogen- and antimony-free "Green" construction | Contains <900ppm Br, <900ppm Cl, <1000ppm Sb - meets global environmental compliance mandates without performance trade-offs. |
| Single-sided 1oz copper thermal design reference | PD = 0.75W specified on 25mm × 25mm FR-4 board - provides baseline for thermal layout validation in production PCBs. |
Applications
| Active Clamp in Flyback Converters | Primary-Side Snubber for LLC Resonant Converters |
|---|---|
Use Scenario: Placed across primary MOSFET drain and auxiliary winding to recycle leakage energy and limit voltage overshoot during turn-off. IC Role / Device Role / Timing Role: High-voltage P-channel switch activated synchronously with primary MOSFET turn-off to absorb inductive kickback. Use Value: Enables 200V-rated clamping with 15ns fall time, reducing peak drain voltage by ≥30% and improving overall converter efficiency by 0.8–1.2%. | Use Scenario: Integrated into resonant tank snubber network to suppress ringing and reduce EMI in high-frequency LLC topologies operating at 300–700kHz. IC Role / Device Role / Timing Role: Fast-turning P-channel clamp that conducts only during brief voltage reversal windows, minimizing conduction loss. Use Value: 100pF Ciss and 25pF Coss minimize capacitive loading on resonant nodes, preserving ZVS behavior and reducing gate driver stress. |
| 48V Automotive DC-DC Auxiliary Supply | Industrial Isolated Bias Supply |
Use Scenario: Used in isolated flyback auxiliary supply for ADAS ECUs, deriving 5V/3.3V rails from 48V battery input. IC Role / Device Role / Timing Role: Active clamp switch in primary-side regulation loop, operating at 250kHz with AEC-Q101-compliant thermal stability. Use Value: -55°C to +150°C operating range and 167°C/W RθJA support reliable operation in under-hood environments without forced cooling. | Use Scenario: Employed in industrial PLC power modules to clamp transformer leakage energy in 24V-to-5V isolated supplies. IC Role / Device Role / Timing Role: High-reliability P-channel clamp selected for long-lifecycle deployments where field failure must be avoided. Use Value: Fully RoHS-3 and halogen-free construction satisfies industrial safety certifications (IEC 62368-1) and end-of-life material restrictions. |
Availability
ZXMP2120E5TA is available at Aetrix Electronics and suitable for active clamp circuits in 48V DC-DC converters, automotive auxiliary power supplies, and industrial isolated bias supplies requiring stable component supply and long-term manufacturability.
Supply support for ZXMP2120E5TA 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 automotive, industrial, and computing markets.
The ZXMP2120E5TA belongs to Diodes' high-voltage trench MOSFET product line, engineered specifically for active clamp and snubber applications in isolated DC-DC converters where voltage robustness and switching speed are jointly critical.
FAQ
Is ZXMP2120E5TA recommended for new designs?
No - Diodes Incorporated explicitly marks ZXMP2120E5TA as "NOT RECOMMENDED FOR NEW DESIGN" with no alternate part provided. It remains available for legacy production and repair, but designers should consult Diodes' latest high-voltage P-channel MOSFET portfolio for newer replacements with improved RDS(ON) and thermal performance.
What is the maximum pulsed drain current rating?
The ZXMP2120E5TA supports -0.7A pulsed drain current (IDM) under repetitive conditions with pulse width limited by junction temperature. This rating applies to short-duration clamp events in flyback converters, not continuous operation, and assumes proper PCB thermal design per the datasheet's 25mm × 25mm FR-4 reference layout.
Does it include an integrated body diode?
Yes - as a standard P-channel MOSFET, ZXMP2120E5TA has an inherent parasitic body diode between source and drain (anode at drain, cathode at source). Its forward voltage is not specified, but the device supports -0.7A pulsed source current (ISM) through this diode, confirming functionality for bidirectional clamp energy recovery.
How is thermal performance validated?
Thermal performance is validated using JEDEC-standard test conditions: mounted on 25mm × 25mm FR-4 PCB with single-sided 1oz copper in still air. The measured RθJA is 167°C/W, and PD is rated at 0.75W at TA = +25°C, with linear derating beyond that temperature at 6mW/°C.
ZXMP2120E5TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 200 V
- Current - Continuous Drain (Id) @ 25°C:
- 122mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 28Ohm @ 150mA, 10V
- Vgs(th) (Max) @ Id:
- 3.5V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 100 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 750mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
ZXMP2120E5TA FAQ
1.How can I place an order for ZXMP2120E5TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXMP2120E5TA 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 ZXMP2120E5TA reliable?
The price and inventory of ZXMP2120E5TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXMP2120E5TA is usually 5 days.
3.What payment methods are accepted for ZXMP2120E5TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXMP2120E5TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXMP2120E5TA?
ZXMP2120E5TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXMP2120E5TA 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 ZXMP2120E5TA?
For technical support, including ZXMP2120E5TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXMP2120E5TA requirements.
6.How does Aetrix verify that ZXMP2120E5TA is sourced from the original manufacturer or authorized distributors?
All ZXMP2120E5TA 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 ZXMP2120E5TA meets industry standards.
7.What is the process for return or replacement of ZXMP2120E5TA?
All ZXMP2120E5TA units undergo pre-shipment inspection (PSI). If there is an issue with ZXMP2120E5TA, 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 ZXMP2120E5TA part is unused and in its original packaging.
Return procedure for ZXMP2120E5TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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