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Diodes Incorporated ZHCS750TC
- Part No.:
- ZHCS750TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZHCS750TC.pdf
- Description:
- DIODE SCHOTTKY 40V 750MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,641
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Product details
Overview
ZHCS750TC 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 ZHCS750TC datasheet, ZHCS750TC pinout, ZHCS750TC application, or ZHCS750TC equivalent, key selection criteria include low VF at 750 mA, 100 µA max reverse leakage at 30 V, 12 ns reverse recovery time, SOT23 package thermal performance, and AEC-Q101 qualification for reliability-critical power conversion stages.
Technical Context
This Schottky diode uses a low-barrier metal–semiconductor junction to achieve fast switching (Trr = 12 ns) and minimal conduction loss, with VF ranging from 225 mV at 50 mA to 490 mV at 750 mA under pulsed conditions. Its 40 V VRRM rating supports input stages in buck and boost converters operating up to 36 V nominal rails.
Thermal design is enabled by a 500 mW power dissipation limit at +25°C ambient and a maximum junction temperature of 125°C. The device is qualified to AEC-Q101, confirming suitability for automotive-grade power management where reliability under thermal cycling and humidity stress is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum reverse blocking voltage before breakdown; sets upper limit for converter input voltage derating. |
| IF(AV) | 750 mA - Continuous forward current rating; defines steady-state output rectification capability in compact DC–DC stages. |
| VF @ 750 mA | 490 mV max - Low conduction loss directly reduces power dissipation and improves efficiency in high-frequency switching topologies. |
| IR @ 30 V | 100 µA max - Low reverse leakage preserves light-load efficiency and minimizes standby power in battery-powered systems. |
| Trr | 12 ns - Fast recovery enables operation at >1 MHz switching frequencies without significant switching loss penalty. |
| PD @ TA=25°C | 500 mW - Thermal limit constrains PCB copper area and layout for reliable operation in confined SOT23 footprints. |
| TJ(max) | 125 °C - Maximum junction temperature determines allowable thermal resistance from junction-to-ambient in thermally constrained designs. |
Pinout & Package
Package: SOT23 - Three-terminal surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating. Dimensions per AP02002: length 2.9 mm, width 1.35 mm, height 1.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to switch node or inductor output in synchronous rectifier or freewheeling paths. |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Bonded to PCB ground plane or output capacitor negative terminal; defines polarity-sensitive placement. |
| NC / Heat Sink Pad (Pin 3) | Non-connected thermal pad | Not electrically connected; used solely for mechanical anchoring and thermal conduction to PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and unbiased HAST per stress test requirements. |
| Lead-free & RoHS compliant | Fully compliant with EU Directive 2011/65/EU; no intentionally added lead, bromine & chlorine <900 ppm each, antimony <1000 ppm. |
| Low VF across operating range | 225–490 mV over 50–750 mA ensures consistent efficiency gain vs. silicon diodes across load profiles. |
| SOT23 footprint compatibility | Standardized 3-pin SOT23 outline enables drop-in replacement in existing layouts without redesign. |
| 125°C max junction temperature | Supports operation in sealed enclosures or high-ambient environments such as automotive infotainment power supplies. |
Applications
| Mobile Phone DC–DC Converter | Automotive Body Control Module |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to 3.3 V logic rail in smartphone PMIC subsystems. IC Role / Device Role / Timing Role: Freewheeling diode in asynchronous buck converter, conducting during low-side switch off-time. Use Value: 490 mV VF at 750 mA reduces conduction loss by ~40% versus standard silicon diodes, extending battery runtime. | Use Scenario: Output rectification in 5 V auxiliary supply powering door lock actuators and LED indicators. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback-derived auxiliary supply, handling repetitive 500 mA pulses. Use Value: AEC-Q101 qualification and 125°C TJ rating ensure long-term stability under under-hood thermal cycling. |
| PCMCIA Card Power Management | Industrial IoT Sensor Node |
Use Scenario: Reverse-polarity protection and input rectification in hot-pluggable PCMCIA interface cards. IC Role / Device Role / Timing Role: Input protection diode placed between card edge connector and internal LDO regulator input. Use Value: 100 µA IR at 30 V prevents excessive standby drain during card insertion/removal events. | Use Scenario: Energy harvesting power path management in battery-less sensor nodes using supercapacitor storage. IC Role / Device Role / Timing Role: Charging path diode isolating solar harvester output from storage capacitor during low-light conditions. Use Value: 12 ns Trr enables efficient charge transfer at intermittent 100–500 kHz burst charging cycles without reverse recovery loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54LT1G | Same SOT23 package; 30 V VRRM, 200 mA IF, 450 mV VF @ 100 mA - lower voltage/current rating. | Targeted at low-power signal-level clamping or ESD protection, not power rectification. | Select only for sub-200 mA loads where 30 V blocking suffices; insufficient for ZHCS750TC's 750 mA/40 V use cases. |
| MMSD914T1G | General-purpose silicon switching diode; 100 V VRRM, 200 mA IF, 1.25 V VF @ 100 mA - higher VF, slower Trr (~4 ns but higher Qrr). | Used in digital logic clamping or low-speed rectification; unsuitable for high-frequency, high-efficiency DC–DC. | Not recommended for power conversion; higher conduction loss and lack of AEC-Q101 make it incompatible with ZHCS750TC's target applications. |
Compared with SBAT54LT1G and MMSD914T1G, ZHCS750TC uniquely delivers 750 mA current handling with 40 V blocking and AEC-Q101 qualification-enabling robust, high-efficiency rectification in space-constrained automotive and portable power designs where alternatives fall short on rating or reliability.
Availability
ZHCS750TC is available at Aetrix Electronics and suitable for DC–DC converters, mobile telecom power supplies, and PCMCIA interface modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ZHCS750TC 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-performance, high-reliability components for power management, signal integrity, and protection applications.
ZHCS750TC belongs to Diodes' Schottky diode product line, engineered specifically for high-efficiency, high-frequency DC–DC conversion in space- and thermal-constrained portable and automotive electronics.
FAQ
What is the maximum junction temperature for ZHCS750TC, and how does it impact PCB layout?
The ZHCS750TC has a maximum junction temperature of 125°C. To maintain this limit, PCB layout must provide adequate copper area under the SOT23 thermal pad (Pin 3) and minimize thermal resistance to ambient. Use ≥25 mm² of 1 oz copper connected via ≥4 thermal vias to inner ground planes for sustained 750 mA operation.
Is ZHCS750TC suitable for automotive applications, and what qualification evidence supports this?
Yes, ZHCS750TC is qualified to AEC-Q101 standards, covering stress tests including temperature cycling, high-accelerated temperature/humidity stress, and unbiased HAST. This certification confirms its suitability for non-safety-critical automotive power modules such as body control units and infotainment supplies.
How does the 12 ns reverse recovery time affect switching frequency selection in buck converters?
A 12 ns Trr allows reliable operation up to 2–3 MHz in buck converters without significant reverse recovery loss or voltage overshoot. At these frequencies, the diode fully recovers before the next switching cycle begins, preserving efficiency and minimizing EMI from ringing during turn-off transitions.
Can ZHCS750TC replace standard silicon diodes like 1N4148 in power applications?
No-1N4148 is a general-purpose switching diode rated for only 200 mA and 100 V, with 1 V VF and no thermal or reliability qualification for power conversion. ZHCS750TC's 750 mA rating, 490 mV VF, and AEC-Q101 compliance make it functionally and thermally incompatible with 1N4148's intended use cases.
ZHCS750TC 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:
- Obsolete
- 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)
ZHCS750TC FAQ
1.How can I place an order for ZHCS750TC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZHCS750TC 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 ZHCS750TC reliable?
The price and inventory of ZHCS750TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZHCS750TC is usually 5 days.
3.What payment methods are accepted for ZHCS750TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZHCS750TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZHCS750TC?
ZHCS750TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZHCS750TC 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 ZHCS750TC?
For technical support, including ZHCS750TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZHCS750TC requirements.
6.How does Aetrix verify that ZHCS750TC is sourced from the original manufacturer or authorized distributors?
All ZHCS750TC 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 ZHCS750TC meets industry standards.
7.What is the process for return or replacement of ZHCS750TC?
All ZHCS750TC units undergo pre-shipment inspection (PSI). If there is an issue with ZHCS750TC, 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 ZHCS750TC part is unused and in its original packaging.
Return procedure for ZHCS750TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZHCS750TC Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
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