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Diodes Incorporated LZ52C5V1W
- Part No.:
- LZ52C5V1W
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 1206 (3216 Metric)
- Datasheet:
-
LZ52C5V1W.pdf
- Description:
- DIODE ZENER 5.1V 500MW 1206
- Quantity:
- Payment:
- Shipping:
Inventory:9,771
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Product details
Overview
LZ52C5V1W from Diodes Incorporated is a surface-mount Zener diode with a nominal reverse breakdown voltage of 5.1 V, ±2% tolerance, 500 mW power dissipation, and ultra-small 1206 package-designed for precision voltage regulation in low-power analog signal conditioning and power rail clamping circuits.
For engineers reviewing the LZ52C5V1W datasheet, LZ52C5V1W pinout, LZ52C5V1W application, or LZ52C5V1W equivalent, key selection criteria include Zener voltage accuracy (5.00–5.20 V at 5 mA), low dynamic impedance (50 Ω at 5 mA), minimal leakage current (0.1 µA at 1.0 V reverse), and RoHS-compliant lead-free termination.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable reference voltage under varying load and temperature conditions. It features silicon epitaxial planar construction, low-leakage performance, and thermal resistance of 300 °C/W junction-to-ambient.
The device is rated for operation from –65 °C to +175 °C and exhibits typical forward voltage of 1.5 V at 200 mA, supporting dual-use as both voltage reference and ESD-robust clamp in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.00–5.20 V at 5 mA test current - defines precise clamping threshold for 5 V rail protection |
| Power Dissipation | 500 mW - supports continuous regulation in space-constrained 1206 footprint without forced cooling |
| Zener Impedance (ZZT) | 50 Ω at 5 mA - ensures minimal output voltage variation under dynamic load transients |
| Reverse Leakage (IR) | 0.1 µA at 1.0 V - enables low-quiescent-current bias networks and high-impedance sensing nodes |
| Tolerance | ±2% - guarantees tight voltage matching across production batches for calibration-critical circuits |
| Package | 1206 (3.2 × 1.6 mm) - compatible with standard SMT pick-and-place and reflow processes |
Pinout & Package
Package: 1206 surface-mount ceramic-body Zener diode with cathode indicated by color band. Terminals are non-polarized metallization optimized for solder joint reliability and thermal cycling endurance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse-bias reference ground node | Connected to lower-potential side in shunt regulation; forms return path for Zener current |
| Cathode | Reverse breakdown terminal / Voltage reference output node | Connected to regulated rail; delivers stable 5.1 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small 1206 footprint | Enables high-density layout in portable and IoT edge devices where board area is constrained |
| ±2% Zener voltage tolerance | Reduces need for post-production trimming in factory-calibrated sensor front-ends and ADC reference buffers |
| Lead-free, halogen- and antimony-free "Green" construction | Meets IPC-1752A Class 2 material declarations and supports automotive PPAP compliance |
| Low thermal resistance (300 °C/W) | Permits reliable operation at full 500 mW dissipation in natural convection environments |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage for bridge-based pressure transducers operating from 5 V supply rails. IC Role / Device Role / Timing Role: Shunt voltage regulator providing low-drift 5.1 V reference to op-amp instrumentation amplifier input stage. Use Value: ±2% VZ tolerance ensures <±10 mV absolute error in 12-bit ADC conversion of millivolt-level sensor outputs. | Use Scenario: Protecting USB-C CC line receivers from overvoltage events during hot-plug negotiation. IC Role / Device Role / Timing Role: Fast-response transient voltage clamp limiting CC pin voltage to safe 5.1 V level during VCONN surge or miswiring. Use Value: 0.1 µA leakage at 1 V ensures negligible loading on high-impedance CC detection circuitry. |
| Low-Power Wearable Battery Monitor | Programmable Logic Controller Input Protection |
Use Scenario: Providing stable reference for fuel gauge ICs monitoring Li-ion cell voltage in hearables. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC internal to battery management unit. Use Value: 50 Ω dynamic impedance maintains reference stability during pulsed RF transmission current draw. | Use Scenario: Clamping 24 V digital input signals to microcontroller GPIO pins in industrial control cabinets. IC Role / Device Role / Timing Role: Overvoltage protection element absorbing inductive kickback from relay coils and solenoid drivers. Use Value: 500 mW rating allows sustained clamping during repeated 24 V transients without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V1 | Same 5.1 V nominal Zener voltage, but ±5% tolerance and 300 mW rating | Suitable for non-critical biasing where cost sensitivity outweighs precision | Select when tighter voltage accuracy is not required and lower power dissipation suffices |
| MMSZ5222B | 5.1 V Zener, ±5% tolerance, 500 mW, SOD-123 package (smaller than 1206) | Fits denser layouts but has higher thermal resistance (350 °C/W) and reduced creepage | Choose for miniaturized designs accepting trade-offs in thermal margin and isolation |
Compared with BZX584C5V1 and MMSZ5222B, LZ52C5V1W offers superior voltage accuracy (±2% vs. ±5%) and higher power handling in a thermally robust 1206 package-making it optimal for precision analog interfaces where long-term stability and manufacturability are prioritized.
Availability
LZ52C5V1W is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery clamp circuits, low-power wearable battery monitors, and programmable logic controller input protection requiring stable component supply and full traceability.
Supply support for LZ52C5V1W 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 components for automotive, industrial, and consumer applications.
The LZ52C series belongs to Diodes' precision Zener diode product line, engineered for stable voltage reference and overvoltage protection in space-constrained, high-volume surface-mount applications.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The LZ52C5V1W has a specified Zener voltage range of 5.00–5.20 V at 5 mA test current. Its breakdown is sharp and well-defined within this range; operation below 1.0 V reverse bias yields only 0.1 µA leakage. It is not rated for sustained reverse voltage beyond its specified VZ window without controlled current limiting.
Can this diode be used in series or parallel configurations for higher voltage or current capability?
No-Zener diodes like LZ52C5V1W should not be paralleled due to mismatched breakdown voltages causing current hogging and thermal failure. Series connection is possible for higher voltage references but requires matched units and balancing resistors; however, Diodes does not characterize or guarantee performance in such configurations.
Is the 1206 package suitable for automated optical inspection (AOI) after reflow?
Yes-the 1206 package features consistent solderable terminations, defined cathode marking (color band), and dimensional stability per JEDEC standards, making it fully compatible with standard AOI systems used in high-yield SMT production lines.
Does this part meet automotive AEC-Q200 stress testing requirements?
No-LZ52C5V1W is not AEC-Q200 qualified. While it operates from –65 °C to +175 °C and meets RoHS/"Green" requirements, Diodes does not list it in their AEC-Q200-qualified portfolio. For automotive applications, consider the AEC-Q200-certified BZX84-C5V1 or AZ23C5V1 series instead.
LZ52C5V1W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 1206 (3216 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 1206
LZ52C5V1W FAQ
1.How can I place an order for LZ52C5V1W through Aetrix?
Please submit a Request for Quotation (RFQ) for LZ52C5V1W 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 LZ52C5V1W reliable?
The price and inventory of LZ52C5V1W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LZ52C5V1W is usually 5 days.
3.What payment methods are accepted for LZ52C5V1W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LZ52C5V1W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LZ52C5V1W?
LZ52C5V1W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LZ52C5V1W 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 LZ52C5V1W?
For technical support, including LZ52C5V1W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LZ52C5V1W requirements.
6.How does Aetrix verify that LZ52C5V1W is sourced from the original manufacturer or authorized distributors?
All LZ52C5V1W 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 LZ52C5V1W meets industry standards.
7.What is the process for return or replacement of LZ52C5V1W?
All LZ52C5V1W units undergo pre-shipment inspection (PSI). If there is an issue with LZ52C5V1W, 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 LZ52C5V1W part is unused and in its original packaging.
Return procedure for LZ52C5V1W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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