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Taiwan Semiconductor Corporation BZV55C3V0 L1G
- Part No.:
- BZV55C3V0 L1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55C3V0 L1G.pdf
- Description:
- DIODE ZENER 3V 500MW MINI MELF
- Quantity:
- Payment:
- Shipping:
Inventory:9,053
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Product details
Overview
BZV55C3V0 L1G from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 3.0 V, ±5% tolerance, 500 mW power dissipation, and MMELF package. It operates as a low-voltage reference or stabilizer in DC/DC converters and adapter circuits where precision voltage clamping at 3.0 V is required.
For engineers reviewing the BZV55C3V0 L1G datasheet, BZV55C3V0 L1G pinout, BZV55C3V0 L1G application, or BZV55C3V0 L1G equivalent, key selection criteria include verified zener voltage (2.8–3.2 V at 5 mA), low dynamic impedance (85 Ω max at IZT), leakage current ≤4 µA at 1.0 V reverse bias, and thermal performance up to 175°C junction temperature.
Technical Context
The BZV55C3V0 L1G implements a single-die silicon Zener structure in hermetically sealed glass, optimized for stable reverse-breakdown operation under DC or pulsed conditions (30 ms test pulse). Its 500 mW power rating and 300 °C/W junction-to-ambient thermal resistance define its usable power envelope in ambient temperatures up to 150°C.
It features a cathode band polarity indicator, matte tin-plated leads compliant with J-STD-002 solderability, and is rated for storage and junction temperatures from –65°C to +175°C - enabling use in industrial and automotive under-hood environments where thermal cycling and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.8–3.2 V at 5 mA test current - ensures stable 3.0 V reference within ±5% tolerance for low-voltage regulation |
| Power Dissipation (PD) | 500 mW - supports continuous operation at 3.0 V / ~167 mA max Zener current without derating below 25°C |
| Zener Impedance (ZZT) | ≤85 Ω at 5 mA - maintains tight voltage regulation under varying load currents in feedback or reference paths |
| Leakage Current (IR) | ≤4 µA at 1.0 V reverse bias - minimizes standby power loss in battery-backed or low-power sensing circuits |
| Junction Temperature (TJ) | –65°C to +175°C - enables deployment in extended-temperature industrial control and automotive power modules |
| Forward Voltage (VF) | 1.0 V at 10 mA - allows bidirectional protection or dual-function use in clamp-and-bias configurations |
Pinout & Package
Package: MMELF (Miniature Metal Electrode Leadless Face), DO-213AA compliant, glass-encapsulated cylindrical body with cathode band marking. Dimensions: Ø1.50±0.10 mm × 3.50±0.20 mm length; weight ≈30.6 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node when used in reverse-biased regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; marked by visible band; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass construction | Prevents moisture ingress and long-term parameter drift - critical for >10-year reliability in sealed power supplies |
| ±5% Zener voltage tolerance | Enables direct substitution in designs targeting 3.0 V reference without recalibration or trimming |
| RoHS-compliant matte tin plating | Ensures reliable solder wetting per J-STD-002 and eliminates lead-based contamination in final assembly |
| Low leakage at 1.0 V reverse bias | Supports ultra-low-quiescent-current applications such as energy-harvesting sensor nodes |
Applications
| On-board DC/DC Converter Reference | USB-C Adapter Voltage Clamp |
|---|---|
Use Scenario: Providing stable 3.0 V feedback reference for buck converter ICs in compact embedded power rails. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference voltage at FB pin of controller. Use Value: Tight 2.8–3.2 V window and low ZZT ensure <±1% output regulation across line/load/temperature variations. | Use Scenario: Clamping auxiliary 3.3 V rail in USB-C PD adapter secondary-side monitoring circuitry. IC Role / Device Role / Timing Role: Overvoltage protection element limiting sensed voltage before ADC input or supervisor IC. Use Value: 4 µA leakage at 1.0 V prevents loading of high-impedance divider networks feeding precision analog monitors. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Bias Network |
Use Scenario: Establishing 3.0 V bias point for op-amp input stages in 4–20 mA transmitter front-ends. IC Role / Device Role / Timing Role: Precision shunt reference providing stable common-mode voltage for differential amplifiers. Use Value: 175°C max junction temperature allows placement near heat-generating transducers without thermal derating. | Use Scenario: Generating local 3.0 V reference for LIN bus transceiver biasing in under-hood BCMs. IC Role / Device Role / Timing Role: Low-power voltage reference supplying stable supply to LIN PHY logic and oscillator circuitry. Use Value: Hermetic glass seal resists under-hood condensation and chemical exposure, ensuring >15-year field life. |
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 (Diodes Inc.) | Same 3.0 V nominal, SOD-323 package, 200 mW PD, 90 Ω ZZT | Lower power rating limits use in >100 mA regulation; smaller footprint reduces thermal mass | Select when board space is constrained and power demand is ≤100 mW |
| BZX55C3V0 (Nexperia) | Same 3.0 V, ±5%, DO-35 glass package, 500 mW, but 100 Ω ZZT and higher 10 µA IR | Higher leakage and impedance reduce regulation accuracy in precision references | Select only for cost-sensitive non-critical clamping where 3.0 V tolerance is secondary |
Compared with MMBZ5222BS-7-F and BZX55C3V0, the BZV55C3V0 L1G delivers superior regulation fidelity (85 Ω ZZT, 4 µA IR) in the same power class, making it preferred for feedback references and low-leakage bias networks where long-term stability matters.
Availability
BZV55C3V0 L1G is available at Aetrix Electronics and suitable for on-board DC/DC converters, USB-C adapter protection circuits, and industrial sensor signal conditioning requiring stable component supply over multi-year production cycles.
Supply support for BZV55C3V0 L1G 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The BZV55 series belongs to TSC's standard Zener diode product line, designed specifically for surface-mount voltage regulation and reference applications demanding high reliability, tight tolerances, and extended temperature operation in space-constrained PCB layouts.
FAQ
What is the exact zener voltage range and test condition for BZV55C3V0 L1G?
The BZV55C3V0 L1G has a guaranteed zener voltage range of 2.8 V to 3.2 V at a test current (IZT) of 5 mA, measured under 30 ms pulse conditions per datasheet specification. This ±5% tolerance ensures predictable clamping behavior in feedback loops and reference circuits without requiring post-production calibration.
Is BZV55C3V0 L1G RoHS compliant and lead-free?
Yes, BZV55C3V0 L1G is RoHS compliant and features matte tin-plated leads that meet J-STD-002 solderability requirements. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits, and is suitable for lead-free reflow assembly processes.
What is the maximum junction temperature and thermal resistance of BZV55C3V0 L1G?
The BZV55C3V0 L1G has a maximum junction temperature (TJ) of +175°C and a junction-to-ambient thermal resistance (RθJA) of 300°C/W. These ratings allow operation in high-temperature environments such as automotive engine compartments or industrial motor drives when mounted on standard FR-4 PCBs with minimal copper area.
How does the leakage current of BZV55C3V0 L1G compare to similar 3.0 V Zeners?
BZV55C3V0 L1G specifies ≤4 µA leakage current (IR) at 1.0 V reverse voltage, which is significantly lower than alternatives like BZX55C3V0 (10 µA) or MMBZ5222BS-7-F (5 µA). This low leakage preserves signal integrity in high-impedance bias networks and extends battery life in always-on sensor nodes.
What package type and polarity marking does BZV55C3V0 L1G use?
BZV55C3V0 L1G uses the MMELF (DO-213AA) glass package with a visible cathode band marking the cathode terminal. The cylindrical body measures Ø1.50±0.10 mm × 3.50±0.20 mm, and terminals are matte tin-plated for reliable solder joint formation per J-STD-002 standards.
BZV55C3V0 L1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 85 Ohms
- Current - Reverse Leakage @ Vr:
- 4 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Mini MELF
BZV55C3V0 L1G FAQ
1.How can I place an order for BZV55C3V0 L1G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55C3V0 L1G 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 BZV55C3V0 L1G reliable?
The price and inventory of BZV55C3V0 L1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55C3V0 L1G is usually 5 days.
3.What payment methods are accepted for BZV55C3V0 L1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55C3V0 L1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55C3V0 L1G?
BZV55C3V0 L1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55C3V0 L1G 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 BZV55C3V0 L1G?
For technical support, including BZV55C3V0 L1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55C3V0 L1G requirements.
6.How does Aetrix verify that BZV55C3V0 L1G is sourced from the original manufacturer or authorized distributors?
All BZV55C3V0 L1G 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 BZV55C3V0 L1G meets industry standards.
7.What is the process for return or replacement of BZV55C3V0 L1G?
All BZV55C3V0 L1G units undergo pre-shipment inspection (PSI). If there is an issue with BZV55C3V0 L1G, 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 BZV55C3V0 L1G part is unused and in its original packaging.
Return procedure for BZV55C3V0 L1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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