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Diodes Incorporated ZHCS750TA
- Part No.:
- ZHCS750TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZHCS750TA.pdf
- Description:
- DIODE SCHOTTKY 40V 750MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:14,667
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Product details
Overview
ZHCS750TA from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 40 V reverse voltage, 750 mA continuous forward current, and 490 mV max forward voltage at 750 mA, optimized for high-efficiency DC–DC converters in mobile telecom and PCMCIA applications.
For engineers reviewing the ZHCS750TA datasheet, ZHCS750TA pinout, ZHCS750TA application, or ZHCS750TA equivalent, key selection criteria include low VF (≤490 mV @ 750 mA), low IR (≤100 µA @ 30 V), fast recovery (12 ns), AEC-Q101 qualification, and SOT23 package compatibility with space-constrained power stages.
Technical Context
This Schottky diode employs a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve minimal forward conduction loss and negligible minority-carrier storage, enabling operation at high switching frequencies without tail current.
Its thermal design supports 125°C maximum junction temperature with 500 mW power dissipation at 25°C ambient, and its 12 ns reverse recovery time ensures minimal switching loss in synchronous buck or boost topologies operating up to several MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum reverse blocking capability without breakdown in DC–DC output rectification |
| IF | 750 mA - Continuous forward current rating defining steady-state power stage conduction capacity |
| VF (max) | 490 mV @ 750 mA - Directly determines conduction loss (0.37 W) and thermal rise in compact layouts |
| IR (max) | 100 µA @ 30 V - Low leakage preserves efficiency in light-load and standby modes |
| Trr | 12 ns - Enables clean turn-off in high-frequency (>1 MHz) PWM converters with minimal voltage overshoot |
| PD | 500 mW @ TA = 25°C - Sets practical power handling limit under natural convection on standard PCB copper |
| Junction Temp | 125°C - Defines maximum allowable die temperature before reliability degradation begins |
Pinout & Package
Package: SOT23 - 3-terminal surface-mount plastic package (2.9 mm × 1.3 mm × 1.0 mm), RoHS-compliant matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to switch node or inductor output; must handle peak currents up to 1.5 A average |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Connected to output rail or ground return; defines reverse bias path during off-time |
| No-Connect (Pin 3) | Internal die attach pad (non-functional) | Thermally coupled to die but electrically isolated; may be grounded for thermal relief if layout permits |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22 |
| Lead-free & Halogen-free | Meets EU RoHS 2 and Diodes Inc. "Green" standard (<900 ppm Br/Cl, <1000 ppm Sb) |
| Low thermal resistance | Junction-to-ambient RθJA ≈ 250°C/W enables operation at full IF without heatsink on 1-in² 1-oz copper |
| Fast switching | 12 ns trr minimizes dead-time losses and reduces need for snubbers in high-frequency SMPS |
| SOT23 footprint | Standardized 3-pin layout compatible with automated placement and reflow profiles per J-STD-020 |
Applications
| Mobile Phone DC–DC Converter | PCMCIA Card Power Management |
|---|---|
Use Scenario: Step-down conversion from 3.3 V or 5 V battery input to 1.2–1.8 V core supply for baseband processors. IC Role / Device Role: Synchronous rectifier freewheeling diode in buck converter output stage. Use Value: 490 mV VF reduces conduction loss by ~30% vs. standard PN diodes, extending battery runtime. | Use Scenario: Reverse-polarity protection and 5 V/3.3 V rail isolation in hot-pluggable PCMCIA cards. IC Role / Device Role: Low-loss series blocking diode preventing backfeed between host and card supplies. Use Value: 100 µA max reverse leakage prevents standby current drain that would exceed PCMCIA sleep spec limits. |
| Automotive Infotainment USB Charger | Industrial Sensor Node Power Supply |
Use Scenario: Input OR-ing and overvoltage clamping in dual-source (battery + USB) 5 V charging circuits. IC Role / Device Role: AEC-Q101-qualified Schottky used in redundant input path selection. Use Value: 125°C TJ rating ensures stable operation inside sealed infotainment enclosures under 85°C ambient. | Use Scenario: Low-power buck regulator front-end for wireless sensor nodes powered by coin cells or energy harvesters. IC Role / Device Role: Output rectifier in ultra-low-quiescent-current DC–DC modules. Use Value: 50 µA typical IR preserves microamp-level sleep current budgets critical for multi-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR0540T1G (ON Semi) | Same 40 V / 500 mA rating; higher VF (550 mV @ 500 mA); SOT23-3 pinout identical | Lower current rating limits use in >600 mA loads; suitable only for derated 750 mA designs | Select when cost sensitivity outweighs 60 mV VF penalty and 250 mA headroom is acceptable |
| SS34 (Vishay) | Higher IF (3 A), larger DO-214AC package; VF 550 mV @ 3 A; not SOT23-compatible | Requires PCB redesign; suited for higher-power, lower-frequency applications where size is less constrained | Choose only if board space allows SO-23 replacement and thermal margin exceeds 1.5× requirement |
Compared with MBR0540T1G and SS34, ZHCS750TA uniquely delivers 750 mA current capability in SOT23 with sub-500 mV VF, making it optimal for miniaturized, high-efficiency DC–DC stages where both footprint and conduction loss are simultaneously constrained.
Availability
ZHCS750TA is available at Aetrix Electronics and suitable for mobile telecom power management, PCMCIA interface protection, and automotive infotainment subsystems requiring stable component supply across production lifecycles.
Supply support for ZHCS750TA 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, manufacturing, and distribution operations across Asia, Europe, and North America.
The ZHCS750TA belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for efficiency-critical, space-constrained DC–DC conversion in portable and automotive electronics.
FAQ
What is the maximum junction temperature for ZHCS750TA?
The ZHCS750TA has a maximum junction temperature (TJ) of 125°C, verified per AEC-Q101 stress testing. This rating applies under specified thermal conditions-derating is required above 25°C ambient, with power dissipation decreasing linearly to zero at 125°C case temperature.
Is ZHCS750TA pin-compatible with other SOT23 Schottky diodes?
Yes-ZHCS750TA uses standard SOT23-3 pinout (Anode–Cathode–NC), matching industry-standard footprints including MBR0540T1G and BAT54 series. Pin 1 is anode, Pin 2 is cathode, and Pin 3 is internal thermal pad (non-connected).
Does ZHCS750TA require special PCB layout considerations?
Yes-its SOT23 package benefits from thermal relief pads on both anode and cathode traces, minimum 0.5 mm copper pour around Pin 3 for heat spreading, and adherence to Diodes Inc.'s AP02001 recommended pad layout to ensure solder joint reliability and thermal performance.
Can ZHCS750TA be used in automotive applications?
Yes-ZHCS750TA is AEC-Q101 qualified and rated for operation from −55°C to +125°C junction temperature. It is approved for use in non-safety-critical automotive systems such as infotainment, body control modules, and USB charging ports, subject to system-level validation.
ZHCS750TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 750mA
- Voltage - Forward (Vf) (Max) @ If:
- 490 mV @ 750 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 12 ns
- Current - Reverse Leakage @ Vr:
- 100 µA @ 30 V
- Capacitance @ Vr, F:
- 25pF @ 25V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- 125°C (Max)
ZHCS750TA FAQ
1.How can I place an order for ZHCS750TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZHCS750TA 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 ZHCS750TA reliable?
The price and inventory of ZHCS750TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZHCS750TA is usually 5 days.
3.What payment methods are accepted for ZHCS750TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZHCS750TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZHCS750TA?
ZHCS750TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZHCS750TA 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 ZHCS750TA?
For technical support, including ZHCS750TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZHCS750TA requirements.
6.How does Aetrix verify that ZHCS750TA is sourced from the original manufacturer or authorized distributors?
All ZHCS750TA 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 ZHCS750TA meets industry standards.
7.What is the process for return or replacement of ZHCS750TA?
All ZHCS750TA units undergo pre-shipment inspection (PSI). If there is an issue with ZHCS750TA, 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 ZHCS750TA part is unused and in its original packaging.
Return procedure for ZHCS750TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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