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Taiwan Semiconductor Corporation BZV55C7V5 L1G
- Part No.:
- BZV55C7V5 L1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55C7V5 L1G.pdf
- Description:
- DIODE ZENER 7.5V 500MW MINI MELF
- Quantity:
- Payment:
- Shipping:
Inventory:7,097
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Product details
Overview
BZV55C7V5 L1G from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 7.5 V, ±5% tolerance, 500 mW power dissipation, and 7 Ω dynamic impedance at 5 mA test current. It operates as a precision voltage reference or low-voltage stabilizer in DC/DC converters and adapter circuits.
For engineers reviewing the BZV55C7V5 L1G datasheet, BZV55C7V5 L1G pinout, BZV55C7V5 L1G application, or BZV55C7V5 L1G equivalent, key selection criteria include zener voltage accuracy, thermal resistance (300 °C/W), cathode-band polarity marking, MMELF package compatibility, and leakage current ≤0.1 µA at 5.0 V reverse bias.
Technical Context
The BZV55C7V5 L1G uses a single-die silicon junction structure in hermetically sealed glass, rated for junction temperatures from –65 °C to +175 °C. Its zener voltage is specified under 30 ms pulse test conditions and exhibits 7 Ω zener impedance (ZZT) at IZT = 5 mA and 50 Ω at IZK = 1.0 mA.
Forward voltage is 1.0 V at IF = 10 mA; reverse leakage remains ≤0.1 µA up to VR = 5.0 V. Thermal performance is defined by RθJA = 300 °C/W, limiting continuous power dissipation to 500 mW at TA = 25 °C with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0–7.9 V (nominal 7.5 V, ±5% tolerance at IZT = 5 mA) |
| Power Dissipation (PD) | 500 mW (max continuous at TA = 25 °C; derates linearly above 25 °C) |
| Zener Impedance (ZZT) | 7 Ω (measured at IZT = 5 mA; ensures stable regulation under load variation) |
| Leakage Current (IR) | ≤0.1 µA at VR = 5.0 V (low standby power loss in reference circuits) |
| Junction Temperature (TJ) | –65 to +175 °C (supports operation in industrial and automotive under-hood environments) |
| Package | MMELF (DO-213AA compliant; 3.50 mm body length, Ø1.50 mm diameter, matte tin leads) |
Pinout & Package
MMELF package: axial leaded, hermetically sealed glass case with cathode band marking polarity. Matte tin-plated leads meet J-STD-002 solderability requirements. Weight ≈30.6 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to circuit ground or lower potential; enables forward bias operation at 1.0 V @ 10 mA |
| Cathode | Zener regulation terminal / high-side reference node | Marked by band; reverse-biased to maintain 7.5 V reference; carries full regulated current |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable reference accuracy without post-production trimming in cost-sensitive designs |
| Hermetically sealed glass construction | Ensures long-term stability and moisture resistance in humid or harsh-environment PCB assemblies |
| Low leakage current (≤0.1 µA) | Minimizes quiescent current draw in battery-powered voltage monitor or standby reference applications |
| MMELF mechanical outline | Provides standardized footprint compatible with DO-213AA land patterns and automated placement equipment |
Applications
| DC/DC Converter Reference | Adapter Voltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback node in non-isolated buck converter operating at 12 V input, 5 V output. IC Role / Device Role / Timing Role: Zener diode provides precise 7.5 V reference to error amplifier input, enabling tight output regulation. Use Value: 7 Ω dynamic impedance ensures minimal output voltage drift under transient load changes. | Use Scenario: Overvoltage protection clamp on secondary side of AC/DC wall adapter supplying microcontroller peripherals. IC Role / Device Role / Timing Role: Clamps surge-induced transients above 7.9 V to protect downstream 5 V logic rails. Use Value: 500 mW rating sustains short-duration surges without thermal runaway or parameter shift. |
| Low-Power Sensor Bias | Industrial Signal Conditioning |
Use Scenario: Providing stable bias voltage to analog temperature sensor in battery-operated environmental monitor. IC Role / Device Role / Timing Role: Acts as low-current voltage reference (IZK = 1.0 mA) for sensor excitation circuitry. Use Value: ≤0.1 µA leakage preserves battery life over multi-year deployments. | Use Scenario: Precision reference in 4–20 mA transmitter loop powered by 24 V supply. IC Role / Device Role / Timing Role: Sets reference point for DAC output stage controlling current loop compliance. Use Value: ±5% VZ tolerance and –65 to +175 °C TJ range ensure calibration stability across factory and field operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | 1 W power rating, 5.6 V nominal, DO-41 package (larger footprint, higher thermal mass) | Higher power handling but incompatible MMELF footprint; requires PCB redesign | Select only if >500 mW dissipation or through-hole assembly is required |
| BZX55C7V5 | Same 7.5 V/±5%/500 mW spec, but in DO-35 glass package (4.5 mm length vs. MMELF's 3.5 mm) | Identical electrical behavior but different mechanical fit; not drop-in due to longer body and lead spacing | Prefer BZV55C7V5 L1G for space-constrained SMT layouts requiring DO-213AA compliance |
Compared with 1N4734A and BZX55C7V5, the BZV55C7V5 L1G delivers identical zener regulation performance in a smaller, surface-mount optimized MMELF package-enabling higher board density and automated assembly without sacrificing thermal or electrical reliability.
Availability
BZV55C7V5 L1G is available at Aetrix Electronics and suitable for DC/DC converter references, adapter voltage clamping, and low-power sensor biasing requiring stable component supply across industrial, automotive, and consumer electronics programs.
Supply support for BZV55C7V5 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 semiconductor manufacturer specializing in discrete devices, analog ICs, and power management components for industrial and automotive markets.
The BZV55 series belongs to TSC's standard Zener diode product line, engineered for high-reliability voltage reference and stabilization in compact, thermally demanding applications where hermetic sealing and tight tolerance matter.
FAQ
What is the zener voltage tolerance for BZV55C7V5 L1G?
The BZV55C7V5 L1G has a nominal zener voltage of 7.5 V with a tolerance of ±5%, meaning the actual measured VZ falls between 7.0 V and 7.9 V when tested at IZT = 5 mA under pulse conditions. This tolerance is standard across the BZV55C series and is verified per Taiwan Semiconductor's H2301 specification revision.
Does BZV55C7V5 L1G support reflow soldering?
Yes, BZV55C7V5 L1G supports standard lead-free reflow soldering profiles. Its matte tin-plated leads comply with J-STD-002 for solderability, and the hermetically sealed glass MMELF package withstands peak reflow temperatures up to 260 °C for ≤10 seconds. Thermal derating must still be applied per its 300 °C/W RθJA rating.
What is the maximum reverse leakage current for BZV55C7V5 L1G?
The maximum reverse leakage current for BZV55C7V5 L1G is 0.1 µA at VR = 5.0 V, as specified in the Electrical Specifications table. This low leakage supports energy-efficient operation in battery-backed or always-on reference circuits where standby current must remain sub-microamp.
Is BZV55C7V5 L1G RoHS compliant?
Yes, BZV55C7V5 L1G is RoHS compliant per Taiwan Semiconductor's documentation. The device uses lead-free matte tin plating on leads and contains no restricted substances above EU RoHS Directive thresholds. Compliance is confirmed in the "Features" section of the official datasheet (Version H2301).
How does the MMELF package of BZV55C7V5 L1G differ from DO-35?
The MMELF package of BZV55C7V5 L1G measures 3.50 mm in length and Ø1.50 mm in diameter, conforming to JEDEC DO-213AA. In contrast, DO-35 packages (e.g., BZX55C7V5) are longer (~4.5 mm) and have wider lead spacing. MMELF enables tighter board layouts and better compatibility with fine-pitch SMT assembly equipment.
BZV55C7V5 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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5 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
BZV55C7V5 L1G FAQ
1.How can I place an order for BZV55C7V5 L1G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55C7V5 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 BZV55C7V5 L1G reliable?
The price and inventory of BZV55C7V5 L1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55C7V5 L1G is usually 5 days.
3.What payment methods are accepted for BZV55C7V5 L1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55C7V5 L1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55C7V5 L1G?
BZV55C7V5 L1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55C7V5 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 BZV55C7V5 L1G?
For technical support, including BZV55C7V5 L1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55C7V5 L1G requirements.
6.How does Aetrix verify that BZV55C7V5 L1G is sourced from the original manufacturer or authorized distributors?
All BZV55C7V5 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 BZV55C7V5 L1G meets industry standards.
7.What is the process for return or replacement of BZV55C7V5 L1G?
All BZV55C7V5 L1G units undergo pre-shipment inspection (PSI). If there is an issue with BZV55C7V5 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 BZV55C7V5 L1G part is unused and in its original packaging.
Return procedure for BZV55C7V5 L1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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