Diodes Incorporated BZT52C4V7-13-F
- Part No.:
- BZT52C4V7-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C4V7-13-F.pdf
- Description:
- DIODE ZENER 4.7V 500MW SOD123
- Quantity:
- Payment:

- Shipping:

Inventory:144,000
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Product details
Overview
BZT52C4V7-13-F from Diodes Incorporated is a surface-mount 4.7 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 80 Ω maximum Zener impedance at 5 mA test current and ±3.5 mV/°C temperature coefficient. It provides precise voltage regulation in low-power supply rails, ESD protection clamping networks, and reference circuits for sensor signal conditioning.
For engineers reviewing the BZT52C4V7-13-F datasheet, BZT52C4V7-13-F pinout, BZT52C4V7-13-F application, or BZT52C4V7-13-F equivalent, key selection criteria include its 4.4–5.0 V nominal Zener voltage range, 3.0 µA maximum reverse leakage at 2.0 V, 2.0 mA knee current, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations and temperature shifts. Its planar die construction ensures consistent Zener characteristics, while the SOD123 package supports automated placement and reflow soldering with 0.010 g mass and UL 94V-0 flammability rating.
The device exhibits a typical Zener voltage tolerance of ±5% (4.4–5.0 V), 150 °C/W junction-to-lead thermal resistance, and -65 to +150 °C operating temperature range - enabling use in industrial control modules and automotive body electronics where thermal stability and lead-free compliance are mandatory.
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 standard bias conditions |
| Power Dissipation (PD) | 370 mW at +25°C ambient - sets maximum continuous power handling on FR-4 PCB with 1-inch copper pad |
| Zener Impedance (ZZT) | 80 Ω max at 1 kHz, 5 mA - determines regulation accuracy under dynamic load transients |
| Reverse Leakage (IR) | 3.0 µA max at VR = 2.0 V - limits standby current in low-power voltage reference paths |
| Temperature Coefficient | ±3.5 mV/°C - quantifies voltage drift per degree Celsius, critical for precision analog sensing |
| Knee Current (IZK) | 2.0 mA - minimum current needed to enter stable breakdown region for reliable regulation |
| Package | SOD123 - 2-pin surface-mount outline with cathode band marking and 0.57 mm lead width |
Pinout & Package
Package: SOD123 - molded plastic case, UL 94V-0 rated, matte tin-plated Alloy 42 leadframe, cathode indicated by band marking, weight ≈ 0.010 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of circuit; forms reference ground return path in shunt regulator topology |
| Cathode | Reverse-biased Zener terminal / regulated output node | Connected to input rail; clamps voltage to 4.7 V when reverse current exceeds knee threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight Zener voltage distribution and repeatable breakdown characteristics across production lots |
| AEC-Q101 qualification | Validates reliability for automotive applications including body control modules and lighting drivers |
| Lead-free & halogen-free | Meets RoHS 2 (2011/65/EU) and green compound requirements (<900 ppm Br/Cl, <1000 ppm Sb) |
| Moisture sensitivity Level 1 | Enables direct placement without baking, reducing manufacturing overhead in high-volume SMT lines |
| Automated assembly compatibility | SOD123 footprint aligns with IPC-7351B standards for pick-and-place and reflow profile stability |
Applications
| Industrial Sensor Reference | Automotive LED Driver Clamp |
|---|---|
|
Use Scenario: Provides stable 4.7 V reference for 12-bit ADC front-end in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precision bias point for op-amp signal conditioning stage. Use Value: Maintains ±0.5% reference stability over -40 to +85°C due to low tempco and tight VZ tolerance. |
Use Scenario: Clamps transient overvoltage on constant-current LED driver output in headlamp control units. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting downstream MOSFET gate drive circuitry. Use Value: Limits peak voltage to ≤5.0 V during load-dump events, preventing gate oxide rupture. |
| Low-Power MCU Reset Circuit | USB Port ESD Protection |
|
Use Scenario: Generates clean reset signal for ARM Cortex-M0 microcontrollers in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Zener-based reset supervisor ensuring valid VCC before processor initialization. Use Value: Delivers predictable 4.7 V threshold with <1 µA quiescent current, extending battery life >2 years. |
Use Scenario: Secondary ESD clamp on USB 2.0 D+ line in portable medical devices. IC Role / Device Role / Timing Role: Low-capacitance (≈30 pF) shunt protector diverting IEC 61000-4-2 ±8 kV contact discharge. Use Value: Adds <0.5 pF parasitic capacitance to signal path, preserving signal integrity up to 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5225BLT1G | 4.7 V nominal, 200 mW PD, SOT-23 package, 100 Ω ZZT | Lower power rating and higher impedance limit use to signal-level clamping only | Select when board space is constrained and thermal load is <150 mW |
| BZX84-C4V7 | 4.7 V nominal, 350 mW PD, SOT-23 package, AEC-Q101 qualified | Same regulation spec but 25% lower power derating margin at +75°C | Prefer for cost-sensitive automotive modules where full 500 mW headroom is unnecessary |
Compared with MMBZ5225BLT1G and BZX84-C4V7, BZT52C4V7-13-F delivers superior thermal performance (370 mW @ +25°C vs. 200–350 mW), tighter Zener impedance (80 Ω vs. 100–150 Ω), and identical AEC-Q101 qualification - making it optimal for thermally demanding, high-precision regulation tasks.
Availability
BZT52C4V7-13-F is available at Aetrix Electronics and suitable for industrial sensor reference, automotive LED driver clamp, low-power MCU reset circuit, and USB port ESD protection requiring stable component supply across extended temperature ranges and automotive-grade reliability.
Supply support for BZT52C4V7-13-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for medium-current voltage regulation and clamping in cost-sensitive, high-volume applications such as power supply feedback loops and interface protection.
FAQ
What is the maximum reverse voltage (VR) at which leakage current is specified for BZT52C4V7-13-F?
The datasheet specifies 3.0 µA maximum reverse current at VR = 2.0 V. This value is measured under DC conditions at +25°C and defines the diode's off-state leakage in voltage-reference configurations where minimal current draw is critical for battery life and signal accuracy.
Can BZT52C4V7-13-F be used in place of a 5.1 V Zener diode?
No - BZT52C4V7-13-F has a nominal Zener voltage of 4.7 V (range 4.4–5.0 V), while a 5.1 V part like BZT52C5V1 has 4.8–5.4 V range. Substituting would cause ~0.4 V regulation error, potentially violating system voltage tolerances in precision references or reset circuits.
Is the SOD123 package compatible with standard reflow profiles for lead-free soldering?
Yes - the SOD123 package uses matte tin finish over Alloy 42 leadframe and is qualified for lead-free reflow per J-STD-020 Level 1 moisture sensitivity. It supports peak temperatures up to 260°C and is compatible with standard Pb-free SAC305 profiles without delamination or solder joint voiding.
Does BZT52C4V7-13-F meet automotive qualification requirements?
Yes - the "-13-F" suffix indicates commercial-grade packaging, but the underlying BZT52C4V7 device is AEC-Q101 qualified per the DS18004 datasheet. Automotive-grade variants (e.g., BZT52C4V7Q-13-F) carry explicit Q-suffix and same electrical specs with enhanced traceability and lot-control documentation.
BZT52C4V7-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±6%
- Power - Max:
- 500 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:
- SOD-123
BZT52C4V7-13-F FAQ
1.How can I place an order for BZT52C4V7-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C4V7-13-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 BZT52C4V7-13-F reliable?
The price and inventory of BZT52C4V7-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C4V7-13-F is usually 5 days.
3.What payment methods are accepted for BZT52C4V7-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C4V7-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C4V7-13-F?
BZT52C4V7-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C4V7-13-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 BZT52C4V7-13-F?
For technical support, including BZT52C4V7-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C4V7-13-F requirements.
6.How does Aetrix verify that BZT52C4V7-13-F is sourced from the original manufacturer or authorized distributors?
All BZT52C4V7-13-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 BZT52C4V7-13-F meets industry standards.
7.What is the process for return or replacement of BZT52C4V7-13-F?
All BZT52C4V7-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C4V7-13-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 BZT52C4V7-13-F part is unused and in its original packaging.
Return procedure for BZT52C4V7-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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