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Diodes Incorporated BZT52C2V0-7-F
- Part No.:
- BZT52C2V0-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C2V0-7-F.pdf
- Description:
- DIODE ZENER 2V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:17,439
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Product details
Overview
BZT52C2V0-7-F from Diodes Incorporated is a surface-mount Zener diode with 2.0 V nominal zener voltage (±4.5% tolerance), 500 mW power dissipation at TL = +75°C, and 370 mW at TA = +25°C, housed in an SOD123 package. It provides precise low-voltage regulation in power supply feedback paths, voltage reference circuits, and overvoltage protection for microcontroller I/O pins.
For engineers reviewing the BZT52C2V0-7-F datasheet, BZT52C2V0-7-F pinout, BZT52C2V0-7-F application, or BZT52C2V0-7-F equivalent, this part delivers stable 2.0 V clamping under 5 mA test current with 100 Ω dynamic impedance, low temperature coefficient (–3.5 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals. Its planar die construction ensures consistent parametric performance and thermal stability, while the SOD123 package supports automated pick-and-place assembly and meets UL 94V-0 flammability requirements.
The device exhibits a typical zener impedance of 100 Ω at 5 mA and 600 Ω at 1.0 mA, with reverse leakage limited to 150 µA at 1.0 V. Its junction-to-ambient thermal resistance is 338 °C/W on FR-4 PCB with 1-inch copper pad, enabling predictable derating up to +150°C operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.0 V nominal, 1.91–2.09 V range at 5 mA - enables accurate low-voltage clamping in 2.5 V or 3.3 V rail monitoring |
| Power Dissipation | 370 mW at +25°C ambient - defines maximum continuous power handling on standard PCB layout |
| Zener Impedance (ZZT) | 100 Ω at 5 mA - determines regulation stiffness under load transients |
| Reverse Leakage (IR) | 150 µA max at VR = 1.0 V - ensures minimal quiescent current in standby voltage reference circuits |
| Temperature Coefficient | –3.5 mV/°C - quantifies voltage drift per degree Celsius, critical for precision analog sensing |
| Package | SOD123 - 2-pin surface-mount outline with cathode band marking, compatible with IPC-7351B footprint |
Pinout & Package
Package: SOD123 - molded plastic case, 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 in reverse-biased configuration; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage clamp output | Connected to regulated node; maintains 2.0 V above anode when reverse current ≥ 1 mA |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Lead-free & RoHS compliant | Fully compliant with EU Directive 2011/65/EU; no intentionally added lead, halogen, or antimony |
| Moisture Sensitivity Level 1 | Unlimited floor life at ≤30°C/60% RH - eliminates bake requirement before reflow |
| Planar die construction | Ensures tight parameter distribution and improved long-term stability vs. diffused junction Zeners |
Applications
| Microcontroller I/O Protection | Low-Voltage Reference Source |
|---|---|
Use Scenario: Clamping 3.3 V GPIO lines against ESD or transient overvoltage during hot-plug events. IC Role / Device Role / Timing Role: Bidirectional voltage limiter placed between I/O pin and ground. Use Value: Limits pin voltage to ≤2.0 V above ground, preventing latch-up in CMOS input stages rated for ±0.3 V beyond supply rails. |
Use Scenario: Generating stable 2.0 V reference for ADC biasing or comparator threshold in battery-powered sensors. IC Role / Device Role / Timing Role: Passive shunt reference providing fixed voltage node independent of load current up to 5 mA. Use Value: Delivers <±1% initial accuracy and –3.5 mV/°C drift, sufficient for 8-bit measurement systems operating from –40°C to +85°C. |
| Automotive Sensor Signal Conditioning | USB Port Overvoltage Clamp |
Use Scenario: Stabilizing bias voltage for Hall-effect or thermistor signal chains in cabin temperature modules. IC Role / Device Role / Timing Role: Zener-regulated excitation source for ratiometric sensor bridges. Use Value: Maintains constant 2.0 V reference despite battery voltage fluctuations (9–16 V), improving sensor linearity and repeatability. |
Use Scenario: Protecting USB 2.0 data lines (D+/D−) from 5 V rail overshoot during power sequencing. IC Role / Device Role / Timing Role: Low-capacitance (<5 pF) clamp between differential pair and ground. Use Value: Adds <0.5 pF parasitic capacitance per line, preserving signal integrity up to 480 Mbps without eye diagram degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221B-7-F | Zener voltage 2.0 V, but rated at 225 mW (SOT-23); higher ZZT = 150 Ω at 20 mA | Limited to lower-power portable devices due to reduced thermal mass and dissipation | Select when board space is constrained and peak power <200 mW; verify thermal margin on small pads |
| BZX84-C2V0 | Same 2.0 V rating, but SOT-23 package, 350 mW PD, ZZT = 120 Ω at 5 mA, not AEC-Q101 qualified | Restricted to commercial-grade consumer products; lacks automotive reliability validation | Choose for cost-sensitive non-automotive designs where AEC-Q101 compliance is unnecessary |
Compared with MMBZ5221B-7-F and BZX84-C2V0, the BZT52C2V0-7-F offers superior thermal capability (370 mW vs. 225–350 mW), AEC-Q101 qualification, and tighter zener impedance (100 Ω), making it preferred for automotive and industrial applications requiring sustained regulation under variable ambient conditions.
Availability
BZT52C2V0-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and consumer USB power management systems requiring stable component supply and long-term manufacturing continuity.
Supply support for BZT52C2V0-7-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 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 including automotive electronics and industrial controls.
FAQ
What is the maximum reverse current at 1.0 V for BZT52C2V0-7-F?
The maximum reverse current (IR) is 150 µA when reverse voltage (VR) is applied at 1.0 V, measured at TA = +25°C. This value reflects leakage behavior below the zener knee and is critical for low-power reference circuits where standby current must remain below 1 µA per node.
Is BZT52C2V0-7-F suitable for use in automotive applications?
Yes - it is qualified to AEC-Q101 standards, tested for high-reliability operation across –65°C to +150°C, and manufactured with halogen- and antimony-free "Green" materials. Its SOD123 package meets automotive moisture sensitivity level 1 requirements, eliminating pre-reflow baking.
How does the thermal resistance of BZT52C2V0-7-F affect its power handling?
With RθJA = 338 °C/W on FR-4 PCB and 1-inch copper pad, a 370 mW ambient-rated dissipation implies ~125°C junction rise above ambient. Derating begins linearly above +25°C, reaching zero power at +150°C - users must verify board layout and airflow to avoid exceeding TJ = +150°C.
Can BZT52C2V0-7-F replace a 2.2 V Zener in an existing design?
No - its nominal zener voltage is 2.0 V (1.91–2.09 V range), not 2.2 V. Substituting would reduce clamping voltage by ~100 mV, potentially violating input voltage tolerances of downstream ICs. Use BZT52C2V4-7-F for 2.4 V or BZT52C2V7-7-F for 2.7 V if higher regulation is required.
BZT52C2V0-7-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):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 150 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
BZT52C2V0-7-F FAQ
1.How can I place an order for BZT52C2V0-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V0-7-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 BZT52C2V0-7-F reliable?
The price and inventory of BZT52C2V0-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V0-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C2V0-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V0-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V0-7-F?
BZT52C2V0-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V0-7-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 BZT52C2V0-7-F?
For technical support, including BZT52C2V0-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V0-7-F requirements.
6.How does Aetrix verify that BZT52C2V0-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C2V0-7-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 BZT52C2V0-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C2V0-7-F?
All BZT52C2V0-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V0-7-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 BZT52C2V0-7-F part is unused and in its original packaging.
Return procedure for BZT52C2V0-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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