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Diodes Incorporated ZVP4105ASTOB
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- Part No.:
- ZVP4105ASTOB
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- E-Line-3
- Datasheet:
-
ZVP4105ASTOB.pdf
- Description:
- MOSFET P-CH 50V 175MA E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:2,295
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Product details
Overview
ZVP4105ASTOB from Zetex Semiconductors (now Diodes Incorporated) is a P-channel enhancement-mode vertical DMOS FET rated for -50 V VDS, 10 Ω RDS(on) at VGS = -5 V, and -175 mA continuous drain current. It operates across -55 °C to +150 °C and is suited for low-power DC-DC converter load switches and battery protection circuits in portable instrumentation.
For engineers reviewing the ZVP4105ASTOB datasheet, ZVP4105ASTOB pinout, ZVP4105ASTOB application, or ZVP4105ASTOB equivalent, key selection criteria include verified gate threshold range (-0.8 V to -2.0 V), pulsed switching performance (td(off) = 18 ns), and TO-92-compatible leadform compatibility with legacy ZVP4105A designs.
Technical Context
This discrete MOSFET uses vertical DMOS construction for enhanced ruggedness and stable RDS(on) over temperature. Its -2.0 V maximum VGS(th) ensures reliable turn-on with standard logic-level negative gate drive, while the 40 pF Ciss and 6 pF Crss support fast switching in low-noise, low-duty-cycle applications.
The device meets absolute maximum ratings of -50 V VDS, ±20 V VGS, and 625 mW Ptot at 25 °C ambient. Electrical characterization confirms -100 nA IDSS at -25 V VDS and -50 V VDS/125 °C, supporting long-term reliability in thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | -50 V - Maximum blocking voltage before avalanche conduction in reverse-biased drain-source path |
| RDS(on) | 10 Ω @ VGS = -5 V, ID = -100 mA - On-resistance directly impacts conduction loss in linear or saturated switching |
| VGS(th) | -0.8 to -2.0 V @ ID = -1 mA - Gate voltage range required to initiate channel formation; enables direct interface with CMOS/TTL logic |
| ID (cont) | -175 mA @ Tamb = 25 °C - Continuous safe operating current under free-air conditions without heatsinking |
| Ciss | 40 pF @ VDS = -25 V, VGS = 0 V - Input capacitance determines gate drive energy and switching speed limitations |
| td(off) | 18 ns @ VDD ≈ -30 V, ID = -270 mA - Turn-off delay time critical for minimizing overlap loss in half-bridge configurations |
Pinout & Package
Supplied in E-Line TO-92-compatible package (3-lead plastic case), with leads arranged as Drain (D), Gate (G), Source (S) - matching standard TO-92 pinout orientation when viewed from front with flat side up and leads down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 (Left) | Drain (D) | Main high-side current path; electrically connected to internal die substrate; requires thermal isolation on PCB |
| Lead 2 (Center) | Gate (G) | Control terminal; high-impedance input requiring <10 nA leakage; sensitive to ESD; must be driven with clean negative voltage |
| Lead 3 (Right) | Source (S) | Reference node for gate drive; tied to system ground or negative rail; carries full load current in common-source configuration |
Key Features
| Feature | Design Value |
|---|---|
| P-channel enhancement mode | Enables high-side switching without level-shifting circuitry; simplifies power rail control in battery-powered systems |
| Vertical DMOS structure | Improves ruggedness against avalanche and dv/dt-induced turn-on versus planar MOSFETs; supports unclamped inductive switching |
| TO-92-compatible footprint | Allows drop-in replacement for legacy ZVP4105A and similar through-hole P-FETs without PCB redesign |
| Low VGS(th) variation | Guaranteed -0.8 V to -2.0 V range ensures consistent turn-on behavior across production lots and temperature extremes |
Applications
| Battery Protection Circuit | Low-Power DC-DC Load Switch |
|---|---|
Use Scenario: Reverse-polarity and overcurrent protection in single-cell Li-ion battery packs for handheld medical devices. IC Role / Device Role / Timing Role: P-channel MOSFET used as back-to-back switch in series with battery anode to block fault currents during reverse insertion or short-circuit events. Use Value: 10 Ω RDS(on) limits forward voltage drop to <175 mV at 17.5 mA sense threshold, preserving battery runtime and enabling compact thermal design. | Use Scenario: Enable/disable 3.3 V rail in ultra-low-power sensor nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: High-side load switch controlled by microcontroller GPIO to isolate downstream peripherals during sleep mode. Use Value: -2.0 V max VGS(th) allows direct drive from 3.3 V MCU outputs using simple inverter stage, eliminating dedicated gate driver ICs. |
| Thermal Cut-Off Monitor | LED Current Limiter |
Use Scenario: Overtemperature shutdown in sealed industrial temperature transmitters operating up to +125 °C ambient. IC Role / Device Role / Timing Role: P-FET placed between supply and regulator input; gate biased via NTC network to open circuit when junction exceeds safe limit. Use Value: Stable RDS(on) and -55 °C to +150 °C Tj rating ensure predictable trip point across full industrial temperature range without derating. | Use Scenario: Constant-current sink for indicator LEDs in automotive dashboard modules where space and BOM count are constrained. IC Role / Device Role / Timing Role: Source-follower configured as adjustable current source with external sense resistor defining LED current. Use Value: 50 mS gfs provides tight current regulation (±5%) over VDS = 1–4 V range, reducing LED brightness drift across supply variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZVP3306A | RDS(on) = 4.5 Ω @ VGS = -5 V; higher gfs (100 mS); same TO-92 package | Better conduction efficiency but tighter VGS(th) tolerance (-1.0 to -2.5 V) increases risk of partial turn-on with weak gate drive | Select when lower on-loss is prioritized and gate drive strength ≥5 mA is available |
| DMN2011UFG-7 | Surface-mount SOT-323 package; RDS(on) = 1.8 Ω @ VGS = -4.5 V; higher ID (300 mA) | Not pin-compatible; requires PCB redesign; superior thermal performance in reflow-soldered assemblies | Choose for new designs targeting higher density and improved thermal management |
Compared with ZVP4105ASTOB, ZVP3306A delivers lower conduction loss but demands stronger gate drive, while DMN2011UFG-7 offers superior power handling in SMT form but eliminates through-hole compatibility-making ZVP4105ASTOB optimal for cost-sensitive, space-constrained legacy upgrades.
Availability
ZVP4105ASTOB is available at Aetrix Electronics and suitable for battery protection circuits, low-power load switching, thermal cutoff monitors, and LED current limiting applications requiring stable component supply and long-lifecycle support.
Supply support for ZVP4105ASTOB 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 was a UK-based analog and discrete semiconductor specialist acquired by Diodes Incorporated in 2008; known for high-reliability small-signal transistors and MOSFETs.
ZVP4105ASTOB belongs to the ZVP series of P-channel vertical DMOS FETs designed specifically for low-voltage, low-current switching in portable and industrial instrumentation where TO-92 compatibility and thermal stability are essential.
FAQ
Is ZVP4105ASTOB suitable for use in automotive applications?
No-ZVP4105ASTOB is not AEC-Q101 qualified and lacks automotive-grade screening, temperature cycling validation, or failure rate data per JESD47. Its -55 °C to +150 °C operating range supports industrial environments but does not meet automotive qualification requirements for vibration, humidity, or ESD robustness.
What is the maximum safe gate-source voltage during transient conditions?
The absolute maximum VGS is ±20 V per datasheet specification. Transient spikes exceeding this-even briefly-risk permanent gate oxide damage. A 15 V Zener clamp between gate and source is recommended in noisy environments to prevent overshoot beyond ±18 V.
Can ZVP4105ASTOB replace ZVP4105A in existing designs?
Yes-ZVP4105ASTOB is a direct replacement for ZVP4105A with identical electrical specifications, TO-92 pinout, and mechanical dimensions. The "STOB" suffix denotes tape-and-reel packaging; the die and leadframe remain functionally and physically identical.
How does RDS(on) change with junction temperature?
RDS(on) increases approximately +0.5 %/°C above 25 °C. At Tj = 100 °C, RDS(on) rises to ~13.8 Ω-verified by pulsed testing per datasheet condition (300 µs width, ≤2% duty cycle). Derating curves are provided in Figure 4 of the original Zetex datasheet Issue 2.
ZVP4105ASTOB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 50 V
- Current - Continuous Drain (Id) @ 25°C:
- 175mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V
- Rds On (Max) @ Id, Vgs:
- 10Ohm @ 100mA, 5V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 40 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 625mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- E-Line (TO-92 compatible)
ZVP4105ASTOB FAQ
1.How can I place an order for ZVP4105ASTOB through Aetrix?
Please submit a Request for Quotation (RFQ) for ZVP4105ASTOB 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 ZVP4105ASTOB reliable?
The price and inventory of ZVP4105ASTOB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZVP4105ASTOB is usually 5 days.
3.What payment methods are accepted for ZVP4105ASTOB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZVP4105ASTOB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZVP4105ASTOB?
ZVP4105ASTOB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZVP4105ASTOB 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 ZVP4105ASTOB?
For technical support, including ZVP4105ASTOB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZVP4105ASTOB requirements.
6.How does Aetrix verify that ZVP4105ASTOB is sourced from the original manufacturer or authorized distributors?
All ZVP4105ASTOB 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 ZVP4105ASTOB meets industry standards.
7.What is the process for return or replacement of ZVP4105ASTOB?
All ZVP4105ASTOB units undergo pre-shipment inspection (PSI). If there is an issue with ZVP4105ASTOB, 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 ZVP4105ASTOB part is unused and in its original packaging.
Return procedure for ZVP4105ASTOB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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