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Diodes Incorporated BZT52C2V4S-7
- Part No.:
- BZT52C2V4S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C2V4S-7.pdf
- Description:
- DIODE ZENER 2.4V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,075
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Product details
Overview
BZT52C2V4S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 2.4 V zener voltage (±0.2 V tolerance), 200 mW power dissipation, and SOD323 package. It regulates voltage in low-power biasing, reference, and overvoltage protection circuits, such as in sensor signal conditioning, microcontroller reset supervision, and USB port ESD clamp staging.
For engineers reviewing the BZT52C2V4S-7 datasheet, BZT52C2V4S-7 pinout, BZT52C2V4S-7 application, or BZT52C2V4S-7 equivalent, key selection criteria include zener voltage accuracy at 5 mA test current, low dynamic impedance (≤100 Ω), temperature coefficient (−3.5 to 0 mV/°C), reverse leakage at 1.0 V (≤50 µA), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified zener test current of 5 mA and maximum zener impedance of 100 Ω at 1 kHz. Its thermal resistance is 625 °C/W on FR-4 PCB, enabling stable regulation up to +150 °C junction temperature.
The device features planar die construction, cathode band polarity marking, and matte tin-plated alloy 42 leadframe for solderability per MIL-STD-202. It is halogen- and antimony-free, fully RoHS-compliant, and qualified to AEC-Q101 for high-reliability automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.4 V nominal, 2.20–2.60 V range at IZT = 5 mA - ensures precise low-voltage reference in 3.3 V or 2.5 V rail monitoring |
| Power Dissipation (PD) | 200 mW - supports continuous regulation in space-constrained consumer and automotive modules without heatsinking |
| Zener Impedance (ZZT) | ≤100 Ω at f = 1 kHz - maintains tight voltage regulation under varying load current in feedback paths |
| Reverse Leakage (IR) | ≤50 µA at VR = 1.0 V - minimizes quiescent current in battery-backed circuits and low-power sleep modes |
| Temp. Coefficient (TC) | −3.5 to 0 mV/°C - enables predictable drift compensation in temperature-sensitive analog references |
| Package | SOD323 - 1.3 × 1.7 mm footprint compatible with high-density PCB layouts and automated pick-and-place |
| Qualification | AEC-Q101 qualified - validated for automotive under-hood and infotainment systems requiring extended temperature and reliability compliance |
Pinout & Package
Package: SOD323 - surface-mount plastic case, 0.0049 g weight, UL 94V-0 flammability rating, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias configuration; defines reference ground point in shunt regulator topology |
| Cathode | Zener breakdown terminal / voltage regulation output | Marked with band; connected to regulated node; sinks current to maintain stable 2.4 V across load when input exceeds threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables consistent breakdown characteristics and improved long-term stability vs. diffused-junction Zeners |
| AEC-Q101 qualification | Validates performance across −65 °C to +150 °C with robust HTRB, TC, and ESD testing for automotive deployment |
| Lead-free & green packaging | Meets EU RoHS 2 and halogen-free standards (<900 ppm Br/Cl, <1000 ppm Sb), supporting eco-compliant manufacturing |
| Low capacitance | Typical ~100 pF at 1 V reverse bias - preserves signal integrity in high-frequency clamp and ESD protection roles |
Applications
| Automotive Sensor Biasing | Microcontroller Reset Supervision |
|---|---|
Use Scenario: Providing stable 2.4 V bias to analog front-end circuitry in engine coolant temperature sensors and pressure transducers. IC Role / Device Role / Timing Role: Shunt voltage reference regulating sensor excitation voltage against supply fluctuations. Use Value: Maintains ±1% sensor output linearity over 12–16 V battery range and −40 °C to +125 °C ambient. | Use Scenario: Monitoring 3.3 V system rail to assert reset on microcontrollers (e.g., STM32L0, PIC16F) during brown-out events. IC Role / Device Role / Timing Role: Zener-based comparator input reference in discrete reset generator circuits. Use Value: Enables reliable reset assertion at 2.4 V threshold with <1 µs response to rail collapse, meeting JEDEC JESD78 requirements. |
| USB Port ESD Clamp Staging | Low-Power IoT Node Voltage Reference |
Use Scenario: First-stage clamping element in dual-stage TVS architecture protecting USB 2.0 D+/D− lines from IEC 61000-4-2 contact discharge. IC Role / Device Role / Timing Role: Low-capacitance Zener absorbing sub-100 ns transients before main TVS triggers. Use Value: Limits clamping voltage to ≤3.3 V at 1 A peak while adding <100 pF parasitic capacitance-preserving signal rise time >1 ns. | Use Scenario: Generating precision 2.4 V reference for ADC sampling in battery-powered environmental sensors (e.g., CO₂, humidity). IC Role / Device Role / Timing Role: Passive voltage reference in ratiometric measurement chains with low-drift op-amps. Use Value: Delivers <0.5% initial accuracy and <50 ppm/°C drift, enabling 12-bit effective resolution without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4677T1G | Zener voltage 2.4 V, SOD-123 package (2.7 × 1.6 mm), 500 mW PD, higher thermal mass | Higher power handling but larger footprint; less suitable for ultra-dense layouts | Select when board space allows and higher surge energy absorption is required |
| BZX384-C2V4 | Zener voltage 2.4 V, SOT-23 package (3.0 × 1.4 mm), 300 mW PD, ±5% tolerance (vs. ±8.3% for BZT52C2V4S) | Looser voltage tolerance; requires tighter design margin in precision reference use cases | Select when cost sensitivity outweighs voltage accuracy and AEC-Q101 compliance is not mandatory |
Compared with MMSZ4677T1G and BZX384-C2V4, the BZT52C2V4S-7 offers optimal balance of compact SOD323 size, AEC-Q101 qualification, and ±8.3% zener tolerance-making it preferred for automotive and space-constrained industrial designs where reliability and footprint are prioritized over raw power rating or ultra-tight voltage spec.
Availability
BZT52C2V4S-7 is available at Aetrix Electronics and suitable for automotive sensor modules, microcontroller reset circuits, and USB interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for BZT52C2V4S-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 consumer markets.
The BZT52C series belongs to Diodes' standard Zener diode product line, designed specifically for precision voltage regulation and reference in space-constrained, high-volume applications demanding AEC-Q101 qualification and green compliance.
FAQ
What is the maximum reverse current (IR) specification for BZT52C2V4S-7 at 1.0 V?
The maximum reverse current is 50 µA at VR = 1.0 V and TA = +25°C, as specified in the Electrical Characteristics table. This low leakage supports energy-efficient operation in always-on circuits like real-time clock backup rails and low-power sensor bias networks.
Is BZT52C2V4S-7 suitable for automotive applications?
Yes-BZT52C2V4S-7 is explicitly qualified to AEC-Q101 standards, with full characterization across −65 °C to +150 °C operating temperature, humidity testing, and mechanical stress validation. It is approved for use in engine control units, body electronics, and ADAS sensor interfaces.
How does the SOD323 package affect thermal performance?
Mounted on FR-4 PCB with recommended pad layout, the SOD323 package delivers a thermal resistance of 625 °C/W (junction-to-ambient). This allows safe operation at full 200 mW dissipation only below +75 °C ambient; derating is required above that per the published power derating curve.
What is the zener voltage tolerance at 5 mA test current?
The zener voltage is guaranteed between 2.20 V and 2.60 V at IZT = 5 mA, representing a ±8.3% tolerance around the nominal 2.4 V value. This is tighter than general-purpose Zeners and sufficient for most non-critical reference and clamp functions.
BZT52C2V4S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±8%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZT52C2V4S-7 FAQ
1.How can I place an order for BZT52C2V4S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V4S-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 BZT52C2V4S-7 reliable?
The price and inventory of BZT52C2V4S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V4S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C2V4S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V4S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V4S-7?
BZT52C2V4S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V4S-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 BZT52C2V4S-7?
For technical support, including BZT52C2V4S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V4S-7 requirements.
6.How does Aetrix verify that BZT52C2V4S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C2V4S-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 BZT52C2V4S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C2V4S-7?
All BZT52C2V4S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V4S-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 BZT52C2V4S-7 part is unused and in its original packaging.
Return procedure for BZT52C2V4S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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