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Diodes Incorporated BZT52HC5V6WFQ-7
- Part No.:
- BZT52HC5V6WFQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52HC5V6WFQ-7.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,602
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Product details
Overview
BZT52HC5V6WFQ from Diodes Incorporated is an AEC-Q101 qualified surface-mount Zener diode in SOD123F package, providing 5.2–6.0 V nominal zener voltage at 5 mA test current, 40 Ω maximum zener impedance, and ±2.0 to +2.5 mV/°C temperature coefficient - used for precision voltage regulation and overvoltage protection in automotive power rails.
For engineers reviewing the BZT52HC5V6WFQ datasheet, BZT52HC5V6WFQ pinout, BZT52HC5V6WFQ application, or BZT52HC5V6WFQ equivalent, key selection criteria include zener voltage tolerance, thermal resistance (150 °C/W with 1 cm² cathode pad), low-profile SOD123F footprint, AEC-Q101 qualification, and 375–830 mW power dissipation capability under defined PCB mounting conditions.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable reference voltage across load variations and supply fluctuations. It delivers regulated output with 1 µA maximum reverse leakage at 2 V and 300 pF capacitance at 0 V bias, enabling use in low-noise analog sensing and feedback loops.
Its flat-lead SOD123F package supports high power density with 150 °C/W thermal resistance when mounted on a 1 cm² copper pad, and its cathode band polarity marking ensures unambiguous orientation during automated placement in automotive-grade PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–6.0 V at IZT = 5 mA - defines tight regulation window for 5 V rail clamping and reference generation |
| Zener Impedance (ZZT) | ≤40 Ω at 5 mA - ensures minimal voltage deviation under dynamic load transients |
| Power Dissipation (PD) | 830 mW with 1 cm² cathode pad - enables robust operation in thermally constrained automotive modules |
| Thermal Resistance (RθJA) | 150 °C/W - specifies junction-to-ambient rise per watt under optimized PCB layout |
| Reverse Leakage (IR) | 1 µA at VR = 2 V - guarantees low standby current in always-on vehicle subsystems |
| Capacitance (CT) | 300 pF at f = 1 MHz, VR = 0 V - limits high-frequency noise coupling in signal conditioning paths |
| Temperature Coefficient (TC) | −2.0 to +2.5 mV/°C - quantifies voltage drift over −65 to +150 °C operating range |
Pinout & Package
Package: SOD123F - flat-lead, low-profile surface-mount package with molded green plastic body (UL 94V-0), matte tin-plated copper alloy leadframe, and cathode band polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased relative to cathode for regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to voltage rail being clamped; marked by visible band; carries full zener current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains |
| SOD123F low-profile package | Height ≤0.85 mm enables use in space-constrained infotainment and body control modules |
| Green compound (halogen/antimony-free) | Meets automotive environmental compliance: <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| IATF 16949 certified manufacturing | Ensures consistent lot-to-lot performance and PPAP documentation support for Tier-1 suppliers |
Applications
| Automotive Engine Control Unit (ECU) Power Monitoring | Infotainment System Voltage Reference |
|---|---|
Use Scenario: Regulating and monitoring 5 V microcontroller supply rail against battery voltage spikes during cold-crank or load-dump events. IC Role / Device Role / Timing Role: Zener clamp protecting downstream LDO inputs and ADC reference pins from overvoltage stress. Use Value: Maintains 5.2–6.0 V regulation window with ≤40 Ω impedance to limit transient overshoot to <50 mV peak deviation. |
Use Scenario: Providing stable reference voltage for audio codec DACs and touchscreen controller ADCs in head-unit designs. IC Role / Device Role / Timing Role: Precision shunt reference replacing higher-cost IC references where ±5% tolerance suffices. Use Value: Delivers 300 pF capacitance and 1 µA leakage to minimize reference noise coupling and standby power loss. |
| Body Control Module (BCM) CAN Transceiver Biasing | ADAS Camera Module ESD Protection |
Use Scenario: Biasing isolated CAN FD transceiver VIO pins to ensure logic-level compatibility across varying supply domains. IC Role / Device Role / Timing Role: Low-drift voltage translator between 3.3 V MCU I/O and 5 V bus interface circuitry. Use Value: −2.0 to +2.5 mV/°C TC ensures <±30 mV total drift over −40 to +125 °C ambient range. |
Use Scenario: Front-end clamping of image sensor analog video lines against ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response shunt protector placed before TVS diode array to reduce clamping voltage overshoot. Use Value: 830 mW power rating with 150 °C/W thermal resistance sustains 2× IEC 61000-4-2 contact discharge pulses without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Zener voltage 3.3 V (fixed), SOD323 package, 200 mW PD, RθJA = 300 °C/W | Lower power, higher thermal resistance - suitable only for signal-level biasing, not power rail clamping | Select when space is critical and regulation tolerance >±10% is acceptable; avoid for automotive power domains. |
| BZX84-C5V6 | 5.6 V nominal, SOT23 package, 300 mW PD, RθJA = 250 °C/W, non-AEC-Q101 | Lacks automotive qualification and thermal performance - limited to industrial/commercial PCBs | Choose for cost-sensitive consumer electronics where AEC-Q101 and 830 mW capability are unnecessary. |
Compared with MMBZ5227BS-7-F and BZX84-C5V6, BZT52HC5V6WFQ offers superior thermal performance (150 °C/W), automotive qualification, and tighter voltage tolerance - making it the only option rated for sustained 5 V rail protection in engine bay environments.
Availability
BZT52HC5V6WFQ is available at Aetrix Electronics and suitable for automotive engine control units, infotainment systems, and ADAS camera modules requiring stable component supply with full AEC-Q101 traceability and IATF 16949 production assurance.
Supply support for BZT52HC5V6WFQ 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 components for automotive, industrial, and computing markets with ISO/TS 16949 and ISO 14001 certifications.
The BZT52HC series targets automotive-grade voltage regulation, designed specifically for AEC-Q101 compliance, PPAP readiness, and thermal robustness in under-hood and cabin electronics.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The BZT52HC5V6WFQ has a nominal zener voltage of 5.2–6.0 V at 5 mA test current. Its breakdown is specified within that range; it does not have a separate "maximum reverse voltage" rating. Reverse voltage exceeding 6.0 V will cause increasing current flow per the zener IV curve, with power dissipation limited to 830 mW under defined thermal conditions.
Is this device suitable for bidirectional ESD protection?
No - the BZT52HC5V6WFQ is a unidirectional Zener diode with cathode-band polarity. It conducts only in reverse breakdown (cathode positive) and forward conduction (anode positive). For bidirectional ESD protection, a dedicated TVS diode such as D3V3M1U2SPT is required.
How does the SOD123F package compare thermally to standard SOD123?
The SOD123F features a flat-lead design with enhanced thermal pad area, achieving 150 °C/W RθJA with a 1 cm² cathode pad - versus ~200–250 °C/W for standard SOD123. This 25–40% improvement enables higher continuous power handling in automotive applications.
Does this part require derating above 25°C ambient temperature?
Yes - Figure 1 in DS41143 shows linear derating from 830 mW at 25°C to 0 mW at 150°C ambient. At 85°C ambient, maximum allowable power drops to approximately 580 mW, calculated using the 150 °C/W thermal resistance and 150°C max junction temperature.
BZT52HC5V6WFQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7.14%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52HC5V6WFQ-7 FAQ
1.How can I place an order for BZT52HC5V6WFQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52HC5V6WFQ-7 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 BZT52HC5V6WFQ-7 reliable?
The price and inventory of BZT52HC5V6WFQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52HC5V6WFQ-7 is usually 5 days.
3.What payment methods are accepted for BZT52HC5V6WFQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52HC5V6WFQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52HC5V6WFQ-7?
BZT52HC5V6WFQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52HC5V6WFQ-7 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 BZT52HC5V6WFQ-7?
For technical support, including BZT52HC5V6WFQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52HC5V6WFQ-7 requirements.
6.How does Aetrix verify that BZT52HC5V6WFQ-7 is sourced from the original manufacturer or authorized distributors?
All BZT52HC5V6WFQ-7 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 BZT52HC5V6WFQ-7 meets industry standards.
7.What is the process for return or replacement of BZT52HC5V6WFQ-7?
All BZT52HC5V6WFQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52HC5V6WFQ-7, 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 BZT52HC5V6WFQ-7 part is unused and in its original packaging.
Return procedure for BZT52HC5V6WFQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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