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Taiwan Semiconductor Corporation BZT52C3V0
- Part No.:
- BZT52C3V0
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52C3V0.pdf
- Description:
- DIODE ZENER 3V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,455
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Product details
Overview
BZT52C3V0 from Taiwan Semiconductor is a surface-mount 3.0 V ±5% zener diode in SOD-123F package, rated for 500 mW power dissipation and tested at 5 mA zener current. It provides stable voltage reference or low-voltage regulation in space-constrained DC/DC converter circuits and adapter designs.
For engineers reviewing the BZT52C3V0 datasheet, BZT52C3V0 pinout, BZT52C3V0 application, or BZT52C3V0 equivalent, key selection criteria include its nominal 3.0 V zener voltage with ±5% tolerance, 100 Ω dynamic impedance at 5 mA, 9 µA leakage at 1.0 V reverse bias, and SOD-123F thermal resistance of 350 °C/W - all critical for precision low-voltage stabilization.
Technical Context
The BZT52C3V0 operates as a single-die, unidirectional zener diode optimized for reverse-biased voltage regulation. Its 3.0 V nominal breakdown voltage is specified under 30 ms pulse test conditions, with zener impedance measured using 10% RMS AC superimposed on DC test current.
It features matte tin-plated terminals compliant with J-STD-002 solderability, moisture sensitivity level 1 per J-STD-020, and UL 94 V-0 molding compound. Polarity is marked by a cathode band, and maximum junction temperature is 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZT | 2.85–3.15 V (±5% tolerance at 5 mA; defines usable regulation window) |
| IZT | 5 mA (standard test current; sets operating point for impedance and voltage spec) |
| ZZT @ IZT | 100 Ω (dynamic impedance at 5 mA; determines regulation stiffness under load variation) |
| IR @ VR = 1.0 V | 9 µA (reverse leakage at 1 V; critical for low-power standby circuits) |
| PD | 500 mW (maximum steady-state power dissipation; limits continuous current to ~167 mA at 3 V) |
| RθJA | 350 °C/W (junction-to-ambient thermal resistance; requires minimal PCB copper for thermal management) |
| Package | SOD-123F (2-pin surface-mount outline; 3.3–3.9 mm length, 1.5–1.7 mm width, 0.5–0.7 mm height) |
Pinout & Package
SOD-123F package with two terminals: anode and cathode. Cathode identified by molded band. Matte tin-plated leads; RoHS-compliant, halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential node in reverse-bias regulation configuration |
| Cathode | Zener breakdown terminal | Marked by band; connects to higher-potential node to enable controlled reverse conduction at 3.0 V |
Key Features
| Feature | Design Value |
|---|---|
| ±5% zener voltage tolerance | Enables predictable 2.85–3.15 V regulation without post-production trimming |
| SOD-123F footprint | Supports high-density PCB layouts with industry-standard 0.95 mm pad pitch and 2.6 mm pad length |
| Moisture Sensitivity Level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT assembly lines |
| UL 94 V-0 flammability rating | Meets safety standards for consumer and industrial end equipment requiring flame-retardant encapsulation |
| RoHS & halogen-free compliance | Fulfills EU environmental directives and IPC/JEDEC J-STD-020 material requirements |
Applications
| USB-C Power Delivery Adapters | IoT Sensor Node Voltage References |
|---|---|
Use Scenario: Regulating 3.3 V rail in compact USB-C adapter secondary-side feedback loop. IC Role / Device Role: Zener reference for optocoupler-based isolated feedback network. Use Value: Tight 3.0 V ±5% tolerance ensures stable output voltage within ±1.5% across temperature and line variations. |
Use Scenario: Providing stable bias voltage for low-power analog front-end in battery-operated environmental sensors. IC Role / Device Role: Low-current voltage reference for ADC reference divider or op-amp biasing. Use Value: 9 µA leakage at 1.0 V enables >10-year battery life in sleep mode while maintaining 3.0 V accuracy. |
| On-board DC/DC Converter Feedback | Industrial PLC Input Protection |
Use Scenario: Setting regulated output voltage in non-isolated buck converter for microcontroller core supply. IC Role / Device Role: Shunt regulator in feedback path of adjustable DC/DC controller IC. Use Value: 100 Ω zener impedance ensures <10 mV output deviation under 10 mA load transients. |
Use Scenario: Clamping transient overvoltage on 3.3 V digital input channels of programmable logic controllers. IC Role / Device Role: Low-energy transient suppressor for ESD and inductive kickback protection. Use Value: Fast 3.0 V breakdown threshold prevents damage to downstream FPGA I/O pins rated for 3.3 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5222BS-7-F | 3.0 V ±5%, SOD-323 package, 350 mW rating, 100 Ω ZZT, 10 µA IR @ 1 V | Smaller footprint but lower power rating; higher thermal resistance (450 °C/W) | Preferred where board space is constrained and peak power <350 mW |
| 1SMA5913BT3G | 3.0 V ±5%, SMA package, 1.5 W rating, 10 Ω ZZT, 10 µA IR @ 1 V | Larger through-hole-compatible package; 3× higher power handling; lower impedance | Selected when higher surge capability or improved regulation stiffness is required |
Compared with BZT52C3V0, MMBZ5222BS-7-F trades power margin for miniaturization, while 1SMA5913BT3G offers superior thermal and regulation performance at the cost of PCB area - making BZT52C3V0 the balanced choice for mainstream SMD 3.0 V reference needs.
Availability
BZT52C3V0 is available at Aetrix Electronics and suitable for USB-C adapters, IoT sensor nodes, on-board DC/DC converters, and industrial PLC input protection requiring stable component supply and full RoHS/halogen-free compliance.
Supply support for BZT52C3V0 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, rectifiers, and protection components with global distribution and AEC-Q200 qualified product lines.
The BZT52C series is part of TSC's standard zener diode portfolio designed specifically for cost-sensitive, high-volume SMD voltage reference and stabilization applications in consumer, industrial, and computing power systems.
FAQ
What is the exact zener voltage range for BZT52C3V0?
The BZT52C3V0 has a guaranteed zener voltage range of 2.85 V to 3.15 V at 5 mA test current and 25 °C ambient, reflecting its ±5% tolerance. This range is validated under 30 ms pulse test conditions per the official Taiwan Semiconductor datasheet revision G1804, and applies across the full operating junction temperature range of –65 °C to +150 °C.
Is BZT52C3V0 suitable for use in automotive applications?
The BZT52C3V0 is not AEC-Q200 qualified and is not recommended for automotive safety-critical or engine-compartment applications. It is rated for industrial and commercial temperature ranges (–65 °C to +150 °C), but lacks automotive-grade qualification, traceability, and stress testing. For automotive use, consider TSC's AEC-Q200-certified zener families such as the BZX84-Q series instead of BZT52C3V0.
What is the maximum continuous reverse current BZT52C3V0 can handle at 3.0 V?
At 3.0 V reverse bias, the BZT52C3V0 is not operating in breakdown - its zener action begins near 2.85 V and stabilizes above that. Continuous current is limited by power dissipation: with PD = 500 mW and VZ ≈ 3.0 V, the theoretical max DC current is ~167 mA. However, thermal derating applies above 25 °C ambient; at 70 °C, usable current drops to ~100 mA due to RθJA = 350 °C/W.
Does BZT52C3V0 have a defined forward voltage specification?
Yes - the BZT52C3V0 specifies a forward voltage (VF) of 1.0 V at 10 mA forward current, per the "KEY PARAMETERS" table in the Taiwan Semiconductor datasheet. This value is typical and verified across production lots; it supports use in dual-role applications where the device may conduct forward during fault conditions or in bidirectional clamp configurations.
How does the SOD-123F package of BZT52C3V0 compare to SOD-123 in terms of dimensions and solderability?
The SOD-123F package used by BZT52C3V0 has identical pin spacing and terminal geometry to standard SOD-123 but features a flatter, lower-profile body (max height 0.7 mm vs. 0.9 mm for SOD-123). Both use matte tin-plated leads compliant with J-STD-002, but SOD-123F's reduced height improves mechanical stability in vibration-prone environments and allows tighter stacking clearance in multi-layer assemblies.
BZT52C3V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 9 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52C3V0 FAQ
1.How can I place an order for BZT52C3V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V0 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 BZT52C3V0 reliable?
The price and inventory of BZT52C3V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V0 is usually 5 days.
3.What payment methods are accepted for BZT52C3V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V0?
BZT52C3V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V0 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 BZT52C3V0?
For technical support, including BZT52C3V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V0 requirements.
6.How does Aetrix verify that BZT52C3V0 is sourced from the original manufacturer or authorized distributors?
All BZT52C3V0 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 BZT52C3V0 meets industry standards.
7.What is the process for return or replacement of BZT52C3V0?
All BZT52C3V0 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V0, 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 BZT52C3V0 part is unused and in its original packaging.
Return procedure for BZT52C3V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C3V0 Tags
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