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Diodes Incorporated BZT52C4V7SQ-7-F
- Part No.:
- BZT52C4V7SQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C4V7SQ-7-F.pdf
- Description:
- DIODE ZENER 4.7V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
BZT52C4V7SQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 4.7 V zener voltage at 5 mA, 80 Ω dynamic impedance at test current, and 200 mW power dissipation in SOD323 package. It provides precision voltage regulation and overvoltage protection in low-power analog and digital supply rails, including microcontroller I/O clamping and reference voltage generation.
For engineers reviewing the BZT52C4V7SQ-7-F datasheet, BZT52C4V7SQ-7-F pinout, BZT52C4V7SQ-7-F application, or BZT52C4V7SQ-7-F equivalent, key selection criteria include zener voltage tolerance (±6.4%), reverse leakage at 2.0 V (≤2 µA), temperature coefficient (−3.5 to 0 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode with a tightly controlled 4.4–5.0 V zener voltage range at IZT = 5 mA. Its planar die construction ensures stable voltage regulation under transient conditions, and its SOD323 package supports high-density PCB layouts with automated assembly compatibility.
The device exhibits low thermal resistance (625 °C/W) and operates across −65 to +150 °C ambient temperatures. Its cathode-band polarity marking and matte tin-plated alloy 42 leadframe ensure reliable solderability per MIL-STD-202, Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V nominal, 4.4–5.0 V range at 5 mA - defines regulated output voltage under normal bias |
| Power Dissipation (PD) | 200 mW - maximum continuous power before thermal derating begins |
| Zener Impedance (ZZT) | 80 Ω at 1 kHz, 5 mA - determines regulation stiffness against load current variation |
| Reverse Leakage (IR) | ≤2 µA at VR = 2.0 V - ensures minimal quiescent current in standby clamping circuits |
| Temperature Coefficient | −3.5 to 0 mV/°C - quantifies voltage drift over operating temperature range |
| Package | SOD323 - 1.3 × 1.7 mm surface-mount outline enabling compact, high-yield placement |
Pinout & Package
Package: SOD323 - ultra-compact plastic-molded case with cathode band marking; dimensions: D = 1.2–1.4 mm, E = 1.6–1.8 mm, He = 2.3–2.7 mm; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node during reverse-bias operation; forms reference ground for regulation |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to higher-potential rail; conducts when voltage exceeds 4.7 V, shunting excess current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use with extended temperature and reliability testing |
| Lead-free & RoHS compliant | Fully EU Directive 2011/65/EU compliant with <900 ppm Br/Cl and <1000 ppm Sb |
| Planar die construction | Enables tight VZ tolerance and repeatable breakdown characteristics across production lots |
| SOD323 footprint | Supports high-density routing and reflow-compatible assembly on FR-4 PCBs |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping 5 V I/O lines in door module ECUs exposed to load-dump transients. IC Role / Device Role: Overvoltage protection element placed between MCU GPIO and external connector. Use Value: Limits voltage to ≤5.0 V during 12 V system surges, preventing latch-up without adding series resistance. | Use Scenario: Providing stable 4.7 V reference for 12-bit ADC front-end in pressure sensor interface. IC Role / Device Role: Precision shunt reference replacing larger three-terminal regulators. Use Value: Delivers ±6.4% voltage accuracy with <2 µA leakage, minimizing offset error in ratiometric measurements. |
| USB-C Power Delivery Monitor | Smart Home IoT Node Power Rail |
Use Scenario: Monitoring VBUS voltage via resistive divider into microcontroller ADC during PD negotiation. IC Role / Device Role: Input protection and voltage scaling element for ADC input stage. Use Value: Prevents ADC saturation during 20 V PD fault events while maintaining linearity below 4.7 V. | Use Scenario: Regulating 3.3 V LDO feedback node in battery-powered Zigbee coordinator. IC Role / Device Role: Low-quiescent shunt regulator stabilizing feedback reference under light loads. Use Value: Draws only 2 µA at 2.0 V reverse bias, extending coin-cell life beyond 5 years in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4704T1G | Zener voltage 4.7 V (4.47–4.94 V), 500 mW PD, SOD123 package | Larger footprint; higher power handling but less suitable for ultra-dense layouts | Select when board space allows and >200 mW dissipation margin is required |
| BZX384-B4V7,115 | Zener voltage 4.7 V (4.47–4.94 V), 300 mW PD, SOD323 package, ±2% tolerance | Tighter VZ tolerance but no AEC-Q101 qualification | Select for industrial non-automotive designs requiring tighter regulation stability |
Compared with MMSZ4704T1G and BZX384-B4V7,115, BZT52C4V7SQ-7-F offers AEC-Q101 compliance in the smallest SOD323 form factor with verified 2 µA leakage at 2 V - critical for automotive signal integrity and low-power IoT nodes.
Availability
BZT52C4V7SQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power delivery monitors, and smart home IoT node power rails requiring stable component supply with full traceability and lifecycle support.
Supply support for BZT52C4V7SQ-7-F 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52C series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for precision voltage regulation and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The BZT52C4V7SQ-7-F has a nominal zener voltage of 4.7 V at 5 mA test current, with a guaranteed breakdown range of 4.4–5.0 V. It does not specify a distinct "maximum reverse voltage" rating; operation above 5.0 V initiates controlled avalanche conduction, limited by power dissipation and thermal design.
Is this part suitable for use in a 5 V logic-level clamping circuit?
Yes - its 4.7 V zener voltage provides effective clamping just below standard 5 V TTL/CMOS logic thresholds. With ≤2 µA leakage at 2.0 V reverse bias and 80 Ω dynamic impedance, it maintains signal integrity while diverting transient energy without loading the source.
Does the "Q" in BZT52C4V7SQ-7-F indicate automotive qualification?
Yes - the "Q" suffix denotes AEC-Q101 qualification per Diodes Incorporated's ordering nomenclature. This part meets stress-test requirements for temperature cycling, humidity, mechanical shock, and high-temperature operating life applicable to automotive electronics.
Can this Zener diode replace a 1N4733A in an existing design?
No - the 1N4733A is a through-hole 5.1 V, 1 W Zener in DO-41 package. BZT52C4V7SQ-7-F is a 4.7 V, 200 mW SOD323 device. Differences in voltage, power rating, package, and thermal behavior require redesign of biasing, layout, and thermal relief to ensure safe operation.
BZT52C4V7SQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±6.38%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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-323
BZT52C4V7SQ-7-F FAQ
1.How can I place an order for BZT52C4V7SQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C4V7SQ-7-F 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 BZT52C4V7SQ-7-F reliable?
The price and inventory of BZT52C4V7SQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C4V7SQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C4V7SQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C4V7SQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C4V7SQ-7-F?
BZT52C4V7SQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C4V7SQ-7-F 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 BZT52C4V7SQ-7-F?
For technical support, including BZT52C4V7SQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C4V7SQ-7-F requirements.
6.How does Aetrix verify that BZT52C4V7SQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C4V7SQ-7-F 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 BZT52C4V7SQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C4V7SQ-7-F?
All BZT52C4V7SQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C4V7SQ-7-F, 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 BZT52C4V7SQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C4V7SQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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