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Diodes Incorporated BZT52C4V7LP-7
- Part No.:
- BZT52C4V7LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C4V7LP-7.pdf
- Description:
- DIODE ZENER 4.7V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,388
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Product details
Overview
BZT52C4V7LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 4.7 V, 5 mA test current, 80 Ω maximum zener impedance at IZT, 3 µA maximum reverse leakage at 2.0 V, and ±3.5 mV/°C temperature coefficient. It operates in automotive-grade AEC-Q101 qualified DFN1006-2 package for precision voltage regulation in low-power sensor biasing circuits.
For engineers reviewing the BZT52C4V7LP-7 datasheet, BZT52C4V7LP-7 pinout, BZT52C4V7LP-7 application, or BZT52C4V7LP-7 equivalent, key selection criteria include zener voltage tolerance (4.4–5.0 V), thermal resistance (500 °C/W), cathode-marked DFN1006-2 footprint compatibility, and AEC-Q101 qualification for automotive electronics design.
Technical Context
This Zener diode provides stable voltage reference via controlled reverse-breakdown conduction at 4.7 V with 5 mA test current. Its 80 Ω dynamic impedance ensures minimal voltage deviation under load variation, and the -3.5 mV/°C temperature coefficient enables predictable drift compensation in ambient-temperature-sensitive circuits.
The device uses NiPdAu-plated copper leadframe terminals solderable per MIL-STD-202 Method 208, housed in UL 94V-0 green molding compound. Moisture sensitivity level is J-STD-020C Level 1, supporting standard reflow profiles without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V nominal, 4.4–5.0 V min/max - defines regulated output voltage under 5 mA bias |
| Zener Test Current (IZT) | 5 mA - standard operating point for voltage specification and impedance measurement |
| Zener Impedance (ZZT) | 80 Ω max at IZT - limits output voltage shift under dynamic load changes |
| Reverse Leakage (IR) | 3 µA max at VR = 2.0 V - ensures low standby power loss in high-impedance bias networks |
| Temperature Coefficient | -3.5 mV/°C - quantifies voltage drift per degree Celsius for thermal error budgeting |
| Power Dissipation (PD) | 250 mW at TA = 25°C - sets maximum continuous DC power handling on FR-4 PCB |
| Thermal Resistance (RθJA) | 500 °C/W - determines junction-to-ambient temperature rise per watt dissipated |
Pinout & Package
Package: DFN1006-2 (1.00 × 0.60 × 0.50 mm), ultra-small leadless surface-mount case with molded green plastic (UL 94V-0) and NiPdAu-plated terminals. Cathode indicated by dot marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference node | Connected to lower-potential side in zener regulation; defines polarity of breakdown voltage |
| Cathode | Reverse-biased terminal / Zener voltage reference node | Marked with dot; connected to higher-potential side; output voltage referenced to this node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| DFN1006-2 footprint | 0.6 mm width enables high-density PCB layouts in space-constrained IoT sensors |
| Lead-free & RoHS-compliant | No intentionally added lead; compliant with global environmental regulations for industrial shipments |
| Green molding compound | Halogen-free UL 94V-0 material reduces toxic gas emission during board rework or failure |
| J-STD-020C Level 1 moisture sensitivity | Eliminates pre-bake requirement before SMT reflow, reducing manufacturing cycle time |
Applications
| Automotive Sensor Biasing | Industrial Analog Front-Ends |
|---|---|
Use Scenario: Providing stable 4.7 V reference for MEMS pressure sensor signal conditioning in engine bay environments. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precise bias point for op-amp input stages. Use Value: -3.5 mV/°C tempco and AEC-Q101 rating ensure <±2% voltage drift over -40°C to +125°C operating range. | Use Scenario: Regulating supply to low-power ADC reference inputs in factory automation PLC analog modules. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining clean 4.7 V rail independent of main 5 V supply ripple. Use Value: 80 Ω zener impedance minimizes output voltage variation under 100 µA load shifts from ADC sampling events. |
| Consumer Wearable Power Management | Medical Diagnostic Instrumentation |
Use Scenario: Generating fixed bias for photodiode transimpedance amplifiers in pulse oximeter optical front-ends. IC Role / Device Role / Timing Role: Low-leakage (3 µA @ 2 V) shunt reference enabling nanoamp-level current measurement accuracy. Use Value: 3 µA max reverse current prevents signal offset errors in high-gain, low-noise TIAs. | Use Scenario: Supplying calibrated reference voltage to isolated patient-monitoring ECG amplifier stages. IC Role / Device Role / Timing Role: Safety-critical voltage clamp protecting downstream analog circuitry from transient overvoltage. Use Value: 250 mW power rating and 500 °C/W thermal resistance support reliable operation under sustained 4.7 V clamp duty cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4702T1G | Same 4.7 V nominal, but 100 Ω ZZT max and no AEC-Q101 qualification | Not rated for automotive under-hood use; suitable for commercial-grade consumer PCBs | Select when cost sensitivity outweighs automotive reliability requirements |
| BZX384-C4V7 | 4.7 V nominal, SOD-323 package (1.7 × 1.3 mm), 90 Ω ZZT, no AEC-Q101 | Larger footprint; less suitable for ultra-dense wearable designs requiring DFN1006-2 | Choose if existing SOD-323 land pattern must be reused and thermal performance margin exists |
Compared with MMSZ4702T1G and BZX384-C4V7, BZT52C4V7LP-7 delivers tighter zener impedance (80 Ω), automotive qualification, and smallest footprint-making it optimal for space- and reliability-critical embedded systems where voltage stability across temperature is essential.
Availability
BZT52C4V7LP-7 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog front-ends, and consumer wearable power management requiring stable component supply across production lifecycles.
Supply support for BZT52C4V7LP-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 BZT52C series belongs to Diodes' AEC-Q101-qualified Zener diode product line, engineered for precision voltage regulation in harsh-environment applications where thermal stability and long-term parametric consistency are critical.
FAQ
What is the cathode identification method for BZT52C4V7LP-7?
The cathode is marked with a visible dot on the top surface of the DFN1006-2 package. This dot aligns with the cathode terminal in the mechanical drawing and must connect to the higher-potential node in zener regulation configurations. The anode is the unmarked terminal, confirmed by the device's polarity symbol in the datasheet top view diagram.
Does BZT52C4V7LP-7 require derating above 25°C ambient?
Yes - power dissipation must be linearly derated above 25°C using the 500 °C/W thermal resistance. For example, at 85°C ambient, maximum allowable power drops to 150 mW ((150°C − 85°C) × 2 mW/°C). Derating ensures junction temperature remains below 150°C, preserving long-term reliability and voltage stability.
Can BZT52C4V7LP-7 replace through-hole Zeners like 1N4732A in new designs?
No - BZT52C4V7LP-7 is not a drop-in replacement due to its DFN1006-2 footprint, 250 mW power rating (vs. 1N4732A's 1 W), and different thermal path. It is intended for low-power, space-constrained SMT applications, not legacy through-hole board upgrades. Layout redesign and power validation are required.
Is the -7 suffix mandatory for ordering the tape-and-reel version?
Yes - the "-7" suffix explicitly denotes the DFN1006-2 package in 3000-unit tape-and-reel packaging per Diodes Incorporated's ordering convention. Omitting "-7" refers to non-standard or obsolete packaging formats. Always specify BZT52C4V7LP-7 for automated SMT assembly lines requiring reel-fed placement.
BZT52C4V7LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 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:
- X1-DFN1006-2
BZT52C4V7LP-7 FAQ
1.How can I place an order for BZT52C4V7LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C4V7LP-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 BZT52C4V7LP-7 reliable?
The price and inventory of BZT52C4V7LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C4V7LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C4V7LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C4V7LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C4V7LP-7?
BZT52C4V7LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C4V7LP-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 BZT52C4V7LP-7?
For technical support, including BZT52C4V7LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C4V7LP-7 requirements.
6.How does Aetrix verify that BZT52C4V7LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C4V7LP-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 BZT52C4V7LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C4V7LP-7?
All BZT52C4V7LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C4V7LP-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 BZT52C4V7LP-7 part is unused and in its original packaging.
Return procedure for BZT52C4V7LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C4V7LP-7 Tags
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