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Diodes Incorporated ZHCS506TA
- Part No.:
- ZHCS506TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZHCS506TA.pdf
- Description:
- DIODE SCHOTTKY 60V 500MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:12,177
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Product details
Overview
ZHCS506TA from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 60 V reverse voltage, 500 mA continuous forward current, and 630 mV maximum forward voltage at 500 mA, optimized for high-efficiency DC-DC converters in mobile telecom and PCMCIA applications.
For engineers reviewing the ZHCS506TA datasheet, ZHCS506TA pinout, ZHCS506TA application, or ZHCS506TA equivalent, key selection criteria include low VF at high IF, AEC-Q101 qualification, SOT23 package compatibility, and 10 ns reverse recovery time for switching efficiency in compact power stages.
Technical Context
This Schottky diode employs a low-barrier metal-semiconductor junction to minimize forward conduction loss and eliminate minority-carrier storage delay. Its 10 ns reverse recovery time and 20–40 µA reverse leakage at 45 V enable fast switching with low dynamic loss in synchronous rectification and flyback snubbing.
The device operates up to +125°C junction temperature and delivers 1000 mA average peak forward current under 50% duty cycle. Its SOT23 package supports automated placement and reflow soldering per MIL-STD-202, with matte tin-plated Alloy 42 leads and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum reverse blocking voltage before breakdown; sets safe operating limit in 48 V input DC-DC stages |
| IO (IF) | 500 mA - Continuous forward current rating; defines steady-state power delivery capability in point-of-load regulators |
| VF @ 500 mA | 630 mV max - Low forward drop reduces conduction loss and thermal load in high-current, space-constrained PCB layouts |
| IR @ 45 V | 40 µA max - Low leakage preserves efficiency in standby and light-load conditions of battery-powered systems |
| trr | 10 ns - Ultra-fast recovery enables >1 MHz switching without tail current losses in buck converter freewheel paths |
| TJ max | +125 °C - Junction temperature limit compatible with automotive under-hood and industrial ambient environments |
| PD | 330 mW - Power dissipation rating at 25°C ambient; determines required thermal pad area and copper pour for thermal management |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with three terminals, 2.9 mm × 1.35 mm footprint, 1.1 mm height, UL 94V-0 rated, 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 500 mA continuous and 5.5 A surge for ≤100 µs |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Connected to ground or output rail; serves as return path and reverse-blocking terminal |
| No-Connect (Pin 3) | Unused leadframe extension | Thermally and electrically isolated; provides mechanical stability but no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Lead-free & Halogen-free | Meets RoHS 2 (2011/65/EU) and Diodes Inc.'s "Green" standard: <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| SOT23 footprint | Enables direct replacement of legacy SOT23 Schottkys without PCB redesign; compatible with standard pick-and-place equipment |
| 10 ns trr | Reduces switching loss by >30% vs. conventional PN diodes in 500 kHz–2 MHz DC-DC topologies |
| Matte tin plating | Ensures consistent solder wetting and joint integrity across lead-free reflow profiles (peak 260°C) |
Applications
| Mobile Phone DC-DC Converter | PCMCIA Card Power Management |
|---|---|
Use Scenario: Step-down conversion from Li-ion battery (3.0–4.2 V) to 1.8 V core logic supply in smartphone baseband ICs. IC Role / Device Role / Timing Role: Synchronous rectifier freewheel diode in buck converter output stage. Use Value: 630 mV VF at 500 mA reduces conduction loss by ~180 mW vs. 800 mV alternatives, extending talk-time by 4–6 minutes per charge cycle. | Use Scenario: Reverse polarity protection and 5 V/3.3 V rail isolation in hot-pluggable PCMCIA Type II cards. IC Role / Device Role / Timing Role: Low-loss OR-ing diode enabling dual-supply redundancy without MOSFET complexity. Use Value: 40 µA IR at 45 V prevents standby current drain exceeding 1 µA per card slot, meeting PCMCIA v2.1 power budget requirements. |
| Automotive Infotainment USB Hub | Industrial Sensor Node Power Supply |
Use Scenario: Input protection and 12 V-to-5 V pre-regulation in rear-seat entertainment USB hubs exposed to load-dump transients. IC Role / Device Role / Timing Role: Clamp diode in TVS-assisted overvoltage protection circuit feeding downstream LDOs. Use Value: AEC-Q101 qualification ensures stable operation during -40°C to +105°C ambient cycling and 1000-hour HTOL stress, supporting 15-year vehicle service life. | Use Scenario: Auxiliary 3.3 V supply generation from 24 V field bus in wireless vibration sensor nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Freewheel diode in miniature flyback converter driving ultra-low-quiescent LDOs. Use Value: 10 ns trr allows stable 1.2 MHz operation with <5% efficiency penalty, enabling full sensor sampling at 10 kHz while maintaining >18-month 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 |
|---|---|---|---|
| SBM560-TB | 60 V VRRM, 500 mA IO, VF = 550 mV @ 500 mA - 80 mV lower forward drop; SOD-123 package (larger footprint) | Requires PCB pad revision; better thermal performance in open-frame designs but incompatible with dense SOT23 layouts | Select when thermal margin >15°C is needed and board space permits larger package |
| BAT54C-7-F | 30 V VRRM, 200 mA IO, VF = 450 mV @ 100 mA - Lower voltage/current rating; same SOT23-3 package | Not suitable for 48 V input or >300 mA loads; acceptable only in 3.3 V/5 V auxiliary rails with light loading | Select only for non-critical 30 V-class logic-level clamping where cost is primary constraint |
Compared with SBM560-TB and BAT54C-7-F, ZHCS506TA uniquely balances 60 V blocking, 500 mA current, SOT23 compatibility, and AEC-Q101 qualification-making it the only option for automotive-grade, space-constrained, medium-voltage DC-DC rectification.
Availability
ZHCS506TA is available at Aetrix Electronics and suitable for DC-DC converters, mobile telecom power supplies, and PCMCIA card interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for ZHCS506TA 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.
ZHCS506TA belongs to Diodes' Schottky Rectifier product line, engineered for high-efficiency, low-VF switching in portable and automotive power conversion where thermal density and regulatory compliance are critical.
FAQ
What is the maximum junction temperature for ZHCS506TA?
The absolute maximum junction temperature is +125°C, verified per JEDEC JESD22-A108. Operation above this limit risks irreversible degradation of the Schottky barrier and increased reverse leakage. Derating is required above +85°C ambient; thermal design must ensure TJ remains ≤125°C under worst-case IF and VR conditions.
Is ZHCS506TA suitable for automotive applications?
Yes-ZHCS506TA is qualified to AEC-Q101 standards, including stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge. It meets automotive requirements for under-hood and infotainment modules operating from -40°C to +105°C ambient, provided PCB layout maintains thermal resistance below 220°C/W.
Does ZHCS506TA have a cathode marking on the package?
Yes-the SOT23 package features a visible cathode band adjacent to Pin 2 (cathode terminal), consistent with industry-standard diode marking. The top-side marking "S56" identifies the device type; the cathode band is located between Pins 2 and 3, confirmed in Diodes' AP02002 package outline drawing.
Can ZHCS506TA replace a standard PN junction diode in a 500 kHz buck converter?
Yes-its 10 ns reverse recovery time eliminates minority-carrier tail current, reducing switching loss and EMI compared to PN diodes. However, its higher reverse leakage (40 µA vs. <1 µA for PN) may increase light-load power loss; verify system efficiency across full load range before substitution.
ZHCS506TA 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):
- 60 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 630 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 10 ns
- Current - Reverse Leakage @ Vr:
- 40 µA @ 45 V
- Capacitance @ Vr, F:
- 20pF @ 25V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- 125°C (Max)
ZHCS506TA FAQ
1.How can I place an order for ZHCS506TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZHCS506TA 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 ZHCS506TA reliable?
The price and inventory of ZHCS506TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZHCS506TA is usually 5 days.
3.What payment methods are accepted for ZHCS506TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZHCS506TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZHCS506TA?
ZHCS506TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZHCS506TA 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 ZHCS506TA?
For technical support, including ZHCS506TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZHCS506TA requirements.
6.How does Aetrix verify that ZHCS506TA is sourced from the original manufacturer or authorized distributors?
All ZHCS506TA 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 ZHCS506TA meets industry standards.
7.What is the process for return or replacement of ZHCS506TA?
All ZHCS506TA units undergo pre-shipment inspection (PSI). If there is an issue with ZHCS506TA, 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 ZHCS506TA part is unused and in its original packaging.
Return procedure for ZHCS506TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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