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Diodes Incorporated ZHCS506QTA
- Part No.:
- ZHCS506QTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZHCS506QTA.pdf
- Description:
- DIODE SCHOTTKY 60V 500MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
ZHCS506QTA from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 60 V reverse voltage, 500 mA continuous forward current, and 630 mV forward voltage at 500 mA, optimized for high-efficiency DC-DC converters in automotive and mobile telecom applications.
For engineers reviewing the ZHCS506QTA datasheet, ZHCS506QTA pinout, ZHCS506QTA application, or ZHCS506QTA equivalent, key selection criteria include low VF at high IF, AEC-Q101 qualification, SOT23 package thermal resistance (290 °C/W), and 40 µA max reverse leakage at 45 V.
Technical Context
This Schottky diode employs a planar epitaxial construction with low-barrier metal-semiconductor junction to minimize forward conduction loss and enable fast switching (tRR ≤ 10 ns). Its 60 V VRRM rating supports buck/boost converter outputs in 48 V and 24 V automotive subsystems.
The device operates across –55 °C to +150 °C storage range with 125 °C maximum junction temperature, and achieves 20 pF junction capacitance at 25 V reverse bias-critical for minimizing switching node ringing in high-frequency (>1 MHz) power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Supports input/output rail isolation in 48 V automotive power supplies without breakdown risk |
| IO | 500 mA - Sustains continuous load current in compact point-of-load regulators |
| VF @ 500 mA | 630 mV - Reduces conduction loss to <315 mW per diode in synchronous rectifier or freewheeling paths |
| IR @ 45 V | 40 µA - Limits standby power loss in always-on telecom modules |
| tRR | 10 ns - Enables clean turn-off in 1–3 MHz switching converters with minimal reverse recovery charge |
| RθJA | 290 °C/W - Requires minimal PCB copper area (1*MRP FR-4, 2 oz) for thermal management |
| CD @ 25 V | 20 pF - Minimizes capacitive coupling and EMI generation during hard switching transitions |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, and 0.0089 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to higher-potential node in freewheeling path; marked with band on top view |
| 2 (NC) | No connection | Internally unconnected; must remain floating-no PCB trace or thermal pad attachment |
| 3 (Anode) | Forward-biased terminal | Connected to lower-potential node (e.g., switch node or ground return); carries full load current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| IATF 16949 manufacturing | Ensures consistent lot-to-lot parametric stability and defect control in production |
| Halogen & antimony free | Meets JEDEC J-STD-709B green material thresholds (<900 ppm Br/Cl, <1000 ppm Sb) |
| Lead-free & RoHS 3 compliant | Enables global market access without hazardous substance restrictions or rework penalties |
Applications
| Automotive Body Control Module | Mobile Baseband Power Supply |
|---|---|
Use Scenario: 12 V input DC-DC conversion for LED lighting drivers and window motor controllers. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter output stage. Use Value: 630 mV VF at 500 mA reduces power loss by >15% vs. standard PN diodes, lowering thermal stress in sealed enclosures. | Use Scenario: Point-of-load regulation for RF transceiver ICs in 4G/5G handsets. IC Role / Device Role / Timing Role: Output rectifier in high-frequency (2 MHz) boost converter supplying 3.3 V to PMIC rails. Use Value: 10 ns tRR prevents shoot-through during fast duty-cycle transitions, preserving efficiency above 92%. |
| Industrial IoT Sensor Node | USB-C Power Delivery Adapter |
Use Scenario: Energy harvesting circuitry powering ultra-low-power microcontrollers from piezoelectric sources. IC Role / Device Role / Timing Role: Input protection and polarity guard in low-current (<100 mA) AC/DC rectification stage. Use Value: 20 µA IR at 45 V enables >10-year battery life in maintenance-free deployments. | Use Scenario: Secondary-side synchronous rectification in 20–60 W USB-C PD adapters. IC Role / Device Role / Timing Role: Low-VF replacement for MOSFET gate drive losses in cost-sensitive designs. Use Value: 20 pF CD minimizes EMI emissions during 300–500 kHz switching, easing EMC certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR0560T1G | Same 60 V VRRM, 500 mA IO, but VF = 700 mV @ 500 mA; TO-236AB (SOT-23) package | Higher VF increases conduction loss by ~110 mW at full load; identical thermal footprint | Select when legacy footprint compatibility is required and 70 mV VF penalty is acceptable |
| SS54 | 60 V VRRM, 5 A IO, VF = 500 mV @ 5 A-but SMC package (larger, 2.5× footprint) | Over-specified current rating; unsuitable for space-constrained PCBs using SOT23 layout | Choose only if board redesign allows larger package and system requires >500 mA surge margin |
Compared with MBR0560T1G and SS54, ZHCS506QTA delivers the lowest VF in SOT23 form factor while maintaining AEC-Q101 compliance-making it optimal for automotive and portable electronics where thermal density and qualification are non-negotiable.
Availability
ZHCS506QTA is available at Aetrix Electronics and suitable for automotive body control modules, mobile baseband power supplies, and industrial IoT sensor nodes requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ZHCS506QTA 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 and signal integrity solutions for automotive, industrial, and consumer markets.
ZHCS506QTA belongs to Diodes' AEC-Q101-qualified Schottky diode product line, engineered specifically for high-efficiency, thermally constrained DC-DC conversion in safety-critical automotive and portable electronics systems.
FAQ
Is ZHCS506QTA suitable for use in automotive powertrain applications?
Yes-ZHCS506QTA is AEC-Q101 qualified and manufactured in IATF 16949 certified facilities. It meets stress test requirements for temperature cycling, HTRB, and ESD, and is approved for body electronics and infotainment systems. It is not rated for engine bay or direct powertrain control due to its 125 °C TJ limit.
What is the maximum allowable PCB trace width for the anode (Pin 3) at 500 mA continuous current?
For 500 mA continuous current on FR-4 with 2 oz copper, a minimum trace width of 0.3 mm (12 mil) is recommended per IPC-2221B guidelines. The SOT23 anode pad (0.915 mm × 0.55 mm) provides sufficient thermal interface; additional copper pour under Pin 3 improves heat dissipation but must avoid shorting to adjacent NC (Pin 2).
Does ZHCS506QTA require derating at elevated ambient temperatures?
Yes-derating is required above 25 °C ambient. At TA = 85 °C, the maximum continuous forward current drops to approximately 320 mA based on RθJA = 290 °C/W and TJ(max) = 125 °C. Full 500 mA operation is only guaranteed up to TA = 55 °C with adequate PCB copper area.
Can ZHCS506QTA be used as a replacement for ZHCS400QTA in existing designs?
No-ZHCS400QTA has 40 V VRRM and 400 mA IO, while ZHCS506QTA is rated for 60 V and 500 mA. Although both use SOT23 and share pinout, substituting ZHCS506QTA into a 40 V design introduces unnecessary over-specification and may affect layout parasitics due to differing junction capacitance (20 pF vs. ~25 pF in ZHCS400QTA), potentially altering EMI behavior.
ZHCS506QTA 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- -55°C ~ 150°C
ZHCS506QTA FAQ
1.How can I place an order for ZHCS506QTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZHCS506QTA 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 ZHCS506QTA reliable?
The price and inventory of ZHCS506QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZHCS506QTA is usually 5 days.
3.What payment methods are accepted for ZHCS506QTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZHCS506QTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZHCS506QTA?
ZHCS506QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZHCS506QTA 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 ZHCS506QTA?
For technical support, including ZHCS506QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZHCS506QTA requirements.
6.How does Aetrix verify that ZHCS506QTA is sourced from the original manufacturer or authorized distributors?
All ZHCS506QTA 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 ZHCS506QTA meets industry standards.
7.What is the process for return or replacement of ZHCS506QTA?
All ZHCS506QTA units undergo pre-shipment inspection (PSI). If there is an issue with ZHCS506QTA, 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 ZHCS506QTA part is unused and in its original packaging.
Return procedure for ZHCS506QTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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