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Diodes Incorporated BZT52HC2V4WF-7
- Part No.:
- BZT52HC2V4WF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52HC2V4WF-7.pdf
- Description:
- DIODE ZENER 2.4V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,051
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Product details
Overview
BZT52HC2V4WF-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 2.4 V zener voltage (2.2–2.6 V range), 5 mA test current, and 85 Ω maximum zener impedance at IZT. It delivers precise low-voltage regulation in space-constrained PCBs and is AEC-Q101 qualified for automotive power rail protection and sensor biasing.
For engineers reviewing the BZT52HC2V4WF-7 datasheet, BZT52HC2V4WF-7 pinout, BZT52HC2V4WF-7 application, or BZT52HC2V4WF-7 equivalent, key selection factors include its SOD123F package thermal performance (RθJA = 150 °C/W with 1 cm² cathode pad), −3.5 mV/°C temperature coefficient, and 375–830 mW power dissipation envelope under defined board conditions.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations and supply fluctuations. Its design targets low-voltage reference and overvoltage clamping in analog front-ends and microcontroller I/O protection circuits, where tight tolerance (±0.2 V) and low dynamic impedance are critical.
The device uses a planar silicon junction structure optimized for low leakage (<50 µA @ 1 V) and predictable TC behavior. Its SOD123F flat-lead package enables high thermal efficiency on FR-4 boards-achieving 830 mW dissipation only when the cathode pad is extended to 1 cm², per Diodes' recommended layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.2–2.6 V at 5 mA - defines regulation window for 2.4 V nominal bias/reference applications |
| Zener Impedance (ZZT) | 85 Ω max at 5 mA - ensures minimal output voltage shift under load transients |
| Power Dissipation (PD) | 830 mW with 1 cm² cathode pad - enables higher continuous current in thermally enhanced layouts |
| Temperature Coefficient (TC) | −3.5 to 0.0 mV/°C - supports stable low-voltage references across −65°C to +150°C |
| Reverse Leakage (IR) | 50 µA max at 1 V - guarantees low quiescent current in always-on sensing nodes |
| Capacitance (CT) | 450 pF max at 0 V, 1 MHz - limits high-frequency noise coupling in signal conditioning paths |
Pinout & Package
Package: SOD123F (Type B), surface-mount plastic case with cathode band marking; 0.015 g weight; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; establishes reference point for regulated voltage drop |
| Cathode | Zener breakdown terminal / regulated output node | Marked by band; supplies stable 2.4 V to load when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| SOD123F flat-lead thermal design | Enables 150 °C/W RθJA with 1 cm² copper pad-doubles power handling vs. standard SOD123 |
| Halogen- and antimony-free "Green" construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb-meets global environmental compliance mandates |
| Cathode band polarity marking | Unambiguous visual identification for automated optical inspection and manual assembly verification |
Applications
| Automotive Sensor Biasing | Microcontroller I/O Protection |
|---|---|
|
Use Scenario: Providing stable 2.4 V reference to analog sensors (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Low-voltage Zener reference source ensuring ADC input accuracy despite battery voltage ripple. Use Value: Tight 2.2–2.6 V tolerance and −3.5 mV/°C TC minimize sensor offset drift over −40°C to +125°C operating range. |
Use Scenario: Clamping GPIO pins of automotive MCUs against ESD and load dump transients. IC Role / Device Role / Timing Role: Reverse-biased transient voltage suppressor limiting pin voltage to ≤2.6 V during fast-rising surges. Use Value: 450 pF capacitance avoids signal integrity degradation on 10–50 MHz digital I/O lines. |
| Low-Power IoT Node Regulation | Industrial Analog Signal Conditioning |
|
Use Scenario: Generating local 2.4 V supply for ultra-low-power sensor interface ICs in battery-operated edge devices. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage while drawing <50 µA standby current. Use Value: 50 µA max reverse leakage at 1 V preserves multi-year battery life in sleep-mode operation. |
Use Scenario: Stabilizing reference voltage for precision op-amp circuits in industrial 4–20 mA transmitter modules. IC Role / Device Role / Timing Role: Precision voltage clamp defining upper rail for rail-to-rail input stages. Use Value: 85 Ω zener impedance ensures <10 mV output variation under ±1 mA load changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | 2.4 V nominal, 100 Ω ZZT, SOT-23 package, RθJA = 300 °C/W | Higher thermal resistance limits continuous power to ~250 mW on standard PCBs | Prefer for cost-sensitive consumer designs where space allows SOT-23 and power demand is low |
| BZX84-C2V4 | 2.4 V nominal, 100 Ω ZZT, SOT-23, no AEC-Q101 qualification | Lacks automotive reliability validation and tighter TC specification (±2 mV/°C typical) | Select for non-automotive industrial or commercial use where qualification is not required |
Compared with MMBZ5221BS-7-F and BZX84-C2V4, BZT52HC2V4WF-7 offers superior thermal performance (150 °C/W), tighter voltage tolerance (±0.2 V), and AEC-Q101 certification-making it the preferred choice for automotive and high-reliability embedded systems requiring stable low-voltage regulation.
Availability
BZT52HC2V4WF-7 is available at Aetrix Electronics and suitable for automotive sensor biasing, microcontroller I/O protection, and low-power IoT node regulation requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for BZT52HC2V4WF-7 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.
The BZT52HC series is engineered for precision voltage regulation in harsh environments, with emphasis on AEC-Q101 compliance, thermal efficiency in compact packages, and environmental sustainability ("Green" halogen-free construction).
FAQ
What is the maximum power dissipation for BZT52HC2V4WF-7 under standard PCB conditions?
The device dissipates up to 375 mW when mounted on an FR-4 PCB using Diodes Incorporated's minimum recommended pad layout. This rating assumes natural convection cooling without extended copper areas. Exceeding this limit risks thermal runaway and parametric shift.
Does BZT52HC2V4WF-7 have a specified forward voltage?
Yes: forward voltage is 0.9 V maximum at 10 mA forward current. This value is relevant for polarity verification during functional testing and for estimating conduction loss in series protection configurations.
How does the SOD123F package improve thermal performance over standard SOD-123?
The SOD123F features a flat lead design that increases solder joint area and improves heat transfer to the PCB. With a 1 cm² cathode pad, thermal resistance drops to 150 °C/W-versus 330 °C/W for the same layout with standard SOD-123-enabling 122% higher power handling.
Is BZT52HC2V4WF-7 suitable for use in life support equipment?
No. Diodes Incorporated explicitly prohibits use of this product in life support devices or systems without express written approval from its CEO. Its qualification covers automotive and industrial applications-not safety-critical medical or aerospace systems.
BZT52HC2V4WF-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):
- 2.4 V
- Tolerance:
- ±8.33%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 85 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52HC2V4WF-7 FAQ
1.How can I place an order for BZT52HC2V4WF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52HC2V4WF-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 BZT52HC2V4WF-7 reliable?
The price and inventory of BZT52HC2V4WF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52HC2V4WF-7 is usually 5 days.
3.What payment methods are accepted for BZT52HC2V4WF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52HC2V4WF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52HC2V4WF-7?
BZT52HC2V4WF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52HC2V4WF-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 BZT52HC2V4WF-7?
For technical support, including BZT52HC2V4WF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52HC2V4WF-7 requirements.
6.How does Aetrix verify that BZT52HC2V4WF-7 is sourced from the original manufacturer or authorized distributors?
All BZT52HC2V4WF-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 BZT52HC2V4WF-7 meets industry standards.
7.What is the process for return or replacement of BZT52HC2V4WF-7?
All BZT52HC2V4WF-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52HC2V4WF-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 BZT52HC2V4WF-7 part is unused and in its original packaging.
Return procedure for BZT52HC2V4WF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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