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Diodes Incorporated BZT52C2V4-13
- Part No.:
- BZT52C2V4-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C2V4-13.pdf
- Description:
- DIODE ZENER 2.4V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
BZT52C2V4-13 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 2.4 V, 500 mW power dissipation at TL = +75°C, and 370 mW at TA = +25°C, housed in an SOD123 package. It delivers stable voltage regulation for low-voltage biasing, reference, and overvoltage protection in power management circuits across consumer and industrial electronics.
For engineers reviewing the BZT52C2V4-13 datasheet, BZT52C2V4-13 pinout, BZT52C2V4-13 application, or BZT52C2V4-13 equivalent, this part supports precise 2.4 V clamping at 5 mA test current, exhibits low dynamic impedance (≤100 Ω at 1 kHz), and maintains tight voltage tolerance (±8.3% at 25°C) - critical for low-dropout regulator feedback paths and microcontroller I/O protection.
Technical Context
This Zener diode operates in reverse breakdown to provide a stable reference voltage under controlled current conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD123 package enables high-density PCB layouts and compatibility with automated reflow assembly.
It features a cathode band polarity marking, 150 °C/W junction-to-lead thermal resistance, and a -65°C to +150°C operating temperature range. The device meets AEC-Q101 qualification for automotive-grade reliability and complies with RoHS, halogen-free, and antimony-free "Green" standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.4 V nominal, 2.2–2.6 V range at 5 mA - defines clamping threshold for 2.5 V logic rail protection |
| Power Dissipation (PD) | 370 mW at TA = +25°C - sets maximum continuous power in ambient-convection environments |
| Zener Impedance (ZZT) | ≤100 Ω at 1 kHz, 5 mA - ensures minimal voltage deviation under small-signal AC load variations |
| Reverse Current (IR) | ≤50 µA at VR = 1.0 V - guarantees low leakage in standby-biased reference circuits |
| Temperature Coefficient | -3.5 to 0 mV/°C - indicates negative drift, requiring compensation in precision references above 85°C |
| Junction-to-Lead RθJL | 150 °C/W - enables thermal design using lead-frame conduction path, not just PCB copper area |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking, 0.010 g mass, UL 94V-0 flammability rating, and matte tin-plated Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener breakdown terminal / voltage clamp output | Connected to regulated node; voltage develops across cathode-to-anode when reverse current ≥1.0 mA |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parameter drift across production lots |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and infotainment power rails |
| Lead-free & RoHS compliant | Enables direct use in consumer electronics without exemption reporting or material declaration overhead |
| Moisture Sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cycle time and cost |
Applications
| Microcontroller I/O Protection | Low-Voltage LDO Feedback |
|---|---|
Use Scenario: Clamping 3.3 V or 2.5 V GPIO lines against ESD transients and supply overshoot. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage protector on bidirectional signal lines. Use Value: Limits voltage to ≤2.6 V during fault events, preventing gate oxide damage in CMOS inputs rated for 3.6 V max. |
Use Scenario: Providing reference voltage for adjustable low-dropout regulators with VOUT = 2.4 V. IC Role / Device Role / Timing Role: Precision voltage reference element in feedback divider network. Use Value: Enables stable 2.4 V output with ±8.3% initial accuracy and <100 Ω dynamic impedance for loop stability. |
| USB Port VBUS Monitoring | Industrial Sensor Biasing |
Use Scenario: Detecting VBUS presence and overvoltage in USB 2.0 host ports before enabling downstream power switches. IC Role / Device Role / Timing Role: Threshold detector via resistor-divider + Zener clamp into comparator input. Use Value: Triggers at 2.4 V with 0.2 V hysteresis margin, rejecting noise while ensuring reliable detection below 2.6 V upper limit. |
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors in 0–85°C industrial nodes. IC Role / Device Role / Timing Role: Low-power voltage reference source for ratiometric analog front-ends. Use Value: Delivers 2.4 V ±0.2 V at 1 mA, minimizing self-heating error and supporting 12-bit ADC resolution. |
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 | Zener voltage 2.4 V, but SOT-23 package (3-pin); 350 mW PD at TA = +25°C; higher ZZT (150 Ω) | Requires different footprint and stencil; less suitable for ultra-dense layouts where SOD123 saves board area | Select when existing SOT-23 land pattern is fixed and thermal margin allows lower power rating |
| 1N4730A | Through-hole DO-41 package; 1 W PD; looser tolerance (±5%); 20 Ω ZZT at 20 mA | Not compatible with SMT assembly; used only in prototyping or legacy through-hole designs | Choose only for hand-soldered repair, educational kits, or non-automated production where size and density are secondary |
Compared with MMBZ5221BS-7-F and 1N4730A, BZT52C2V4-13 offers superior board-area efficiency in SMT lines, tighter voltage tolerance than 1N4730A, and lower dynamic impedance than MMBZ5221BS-7-F - making it optimal for space-constrained, high-volume consumer and automotive applications requiring repeatable 2.4 V clamping.
Availability
BZT52C2V4-13 is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-voltage LDO feedback networks, and USB VBUS monitoring requiring stable component supply, consistent parametric performance, and automotive-grade reliability.
Supply support for BZT52C2V4-13 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, energy-efficient components for automotive, industrial, and consumer markets.
BZT52C2V4-13 belongs to the BZT52C series of surface-mount Zener diodes designed specifically for general-purpose voltage regulation and transient suppression in compact, high-volume electronic systems.
FAQ
What is the maximum reverse current at 1.0 V for BZT52C2V4-13?
The maximum reverse current (IR) is 50 µA at VR = 1.0 V and TA = +25°C. This value reflects leakage behavior well below the knee of the Zener breakdown curve and is critical for low-power bias networks where quiescent current must remain sub-100 µA.
Can BZT52C2V4-13 be used in automotive applications?
Yes - BZT52C2V4-13 is qualified to AEC-Q101 standards and offered in automotive-grade variants (e.g., BZT52C2V4Q-13-F). Its -65°C to +150°C operating range, halogen-free construction, and validated reliability make it suitable for body electronics, infotainment power rails, and sensor interface circuits.
What is the thermal resistance from junction to ambient (RθJA) for this device?
RθJA is 338 °C/W when mounted on an FR-4 PCB with a 1-inch copper pad layout. This value assumes standard JEDEC test conditions and must be derated per Figure 1 in DS18004 when ambient temperature exceeds +25°C or copper area is reduced.
How does the temperature coefficient affect regulation accuracy above 85°C?
The temperature coefficient ranges from -3.5 to 0 mV/°C, meaning VZ decreases slightly with rising temperature. At +125°C, worst-case drift is approximately -0.35 V from 25°C baseline - a 14.6% shift - so precision applications require compensation or tighter thermal management.
BZT52C2V4-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±8%
- Power - Max:
- 500 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-123
BZT52C2V4-13 FAQ
1.How can I place an order for BZT52C2V4-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V4-13 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 BZT52C2V4-13 reliable?
The price and inventory of BZT52C2V4-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V4-13 is usually 5 days.
3.What payment methods are accepted for BZT52C2V4-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V4-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V4-13?
BZT52C2V4-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V4-13 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 BZT52C2V4-13?
For technical support, including BZT52C2V4-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V4-13 requirements.
6.How does Aetrix verify that BZT52C2V4-13 is sourced from the original manufacturer or authorized distributors?
All BZT52C2V4-13 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 BZT52C2V4-13 meets industry standards.
7.What is the process for return or replacement of BZT52C2V4-13?
All BZT52C2V4-13 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V4-13, 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 BZT52C2V4-13 part is unused and in its original packaging.
Return procedure for BZT52C2V4-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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