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Nexperia USA Inc. BZV55-B56,115
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- Part No.:
- BZV55-B56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-B56,115.pdf
- Description:
- DIODE ZENER 56V 500MW LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
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Product details
Overview
BZV55-B56,115 from Nexperia is a ±2 % tolerance silicon Zener voltage regulator diode in a hermetically sealed SOD80C glass SMD package, rated for 54.9 V to 57.1 V nominal Zener voltage at 2 mA, with 100 Ω typical differential resistance and 70 mV/K temperature coefficient, used for precision low-power voltage reference and regulation in power supply feedback paths and sensor biasing circuits.
For engineers reviewing the BZV55-B56,115 datasheet, BZV55-B56,115 pinout, BZV56,115 application, or BZV55-B56,115 equivalent, this page delivers verified electrical parameters, thermal behavior under transient surge, cathode/anode terminal mapping, real-world regulation use cases, and validated alternative parts with documented performance trade-offs.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage tolerance (±2 %), enabling stable DC reference generation across industrial temperature ranges. Its low 100 Ω differential resistance ensures minimal output voltage drift under load variation, while the 70 mV/K temperature coefficient allows predictable thermal compensation in analog circuits.
The device supports non-repetitive peak reverse power dissipation up to 40 W for 100 µs pulses and maintains total power dissipation ≤500 mW at Tj ≤50 °C on a ceramic substrate. Its 40 pF junction capacitance at 0 V and 1 MHz makes it suitable for low-frequency regulation without signal coupling concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 54.9 V to 57.1 V at IZ = 2 mA - defines precise regulation point for feedback networks |
| Differential Resistance (rdif) | 100 Ω typical at IZ = 2 mA - limits output voltage change to ~100 mV per 1 mA current shift |
| Temperature Coefficient (SZ) | 70 mV/K - enables predictable voltage drift compensation in temperature-sensitive references |
| Reverse Current (IR) | 50 nA max at VR = 0.7×VZ(nom) - ensures negligible leakage in high-impedance bias networks |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs square wave - supports transient overvoltage clamping in protection circuits |
| Total Power Dissipation (Ptot) | 500 mW at Tamb ≤50 °C on ceramic substrate - sets maximum continuous DC power handling |
| Junction-to-Ambient Rth | 380 K/W in free air - determines thermal rise of ~190 °C at full 500 mW dissipation |
Pinout & Package
Hermetically sealed glass SOD80C surface-mount package: 3.3–3.7 mm length, 1.45–1.60 mm width, 0.3 mm height; marking band denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation current |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement in precision feedback loops without recalibration |
| Low 100 Ω differential resistance | Maintains regulation accuracy within ±0.1 V across 1 mA load current variation |
| Hermetic glass SOD80C package | Ensures long-term stability and moisture resistance in harsh ambient conditions |
| 40 W non-repetitive surge rating | Provides transient overvoltage protection without external TVS components |
| 50 nA max reverse leakage | Preserves signal integrity in high-impedance sensor bias and reference divider networks |
Applications
| Power Supply Feedback Regulation | Sensor Bias Reference |
|---|---|
|
Use Scenario: Stabilizing output voltage in isolated flyback or buck converter feedback paths using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Zener diode provides fixed reference voltage to error amplifier input, defining target output level. Use Value: ±2 % tolerance and 100 Ω rdif ensure <±0.5 % output voltage drift across line/load/temperature variations. |
Use Scenario: Providing stable bias voltage to analog sensor elements (e.g., RTDs, bridge transducers) in industrial measurement front-ends. IC Role / Device Role / Timing Role: Acts as low-drift voltage reference source for excitation current generation or ADC reference scaling. Use Value: 70 mV/K temperature coefficient allows predictable compensation when paired with NTC thermistors in reference paths. |
| Overvoltage Clamp Protection | Low-Power Voltage Reference |
|
Use Scenario: Clamping transient surges on 48 V DC bus lines in telecom or industrial control systems. IC Role / Device Role / Timing Role: Zener conducts during overvoltage events, diverting excess energy to ground before downstream ICs are damaged. Use Value: 40 W non-repetitive peak power rating handles 100 µs surges without degradation, eliminating need for larger TVS diodes. |
Use Scenario: Generating accurate 56 V reference for high-voltage monitoring circuits in battery management or power quality analyzers. IC Role / Device Role / Timing Role: Functions as passive two-terminal reference with no quiescent current beyond regulation current. Use Value: 50 nA reverse leakage prevents loading of high-impedance divider networks, preserving measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C56,113 | ±5 % tolerance, 150 Ω rdif, 75 mV/K SZ, same SOD80C package | Higher voltage drift and looser regulation; suited for non-critical biasing only | Select when cost sensitivity outweighs precision requirements and thermal drift is acceptable |
| MMSZ5256B-TP | ±5 % tolerance, 170 Ω rdif, 70 mV/K SZ, SOD-123 package (larger footprint) | Lower surge rating (20 W), higher thermal resistance (450 K/W), less stable under pulse stress | Choose only if SOD-123 board layout is already committed and 56 V reference is non-critical |
Compared with BZV55-B56,115, the BZX55C56,113 sacrifices 3× tighter voltage tolerance and 1.5× higher differential resistance for lower cost, while MMSZ5256B-TP trades surge robustness and thermal performance for compatibility with legacy SOD-123 footprints-neither matches the original's precision + ruggedness combination.
Availability
BZV55-B56,115 is available at Aetrix Electronics and suitable for power supply feedback regulation, sensor bias reference, overvoltage clamp protection, and low-power voltage reference applications requiring stable component supply and long-term parametric consistency.
Supply support for BZV55-B56,115 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
Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET devices optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer systems.
The BZV55 series belongs to Nexperia's precision Zener diode product line, engineered specifically for stable low-power voltage regulation and reference functions in space-constrained SMD designs.
FAQ
What is the maximum continuous forward current for BZV55-B56,115?
The absolute maximum forward current is 250 mA per the datasheet limiting values table. However, this device is intended for reverse-bias Zener operation; forward conduction is not a functional mode and should be avoided in circuit design to prevent parameter shift or degradation.
Can BZV55-B56,115 be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficients and mismatched breakdown voltages, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or active regulation instead.
What is the thermal resistance from junction to solder point (Rth(j-sp))?
Rth(j-sp) is 300 K/W, measured with the device mounted on a 10 × 10 × 0.6 mm ceramic substrate. This value enables accurate junction temperature estimation during pulsed operation and informs PCB copper pour design for thermal management.
How does the 70 mV/K temperature coefficient affect regulation accuracy over –40 °C to +125 °C?
Across that range, the Zener voltage shifts by up to ±5.95 V (70 mV/K × 85 K), resulting in ~±10.5 % deviation from nominal 56 V. For stable operation, use temperature-compensated circuits or select devices with lower SZ where ambient variation exceeds ±25 °C.
BZV55-B56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLDS; MiniMelf
BZV55-B56,115 FAQ
1.How can I place an order for BZV55-B56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-B56,115 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 BZV55-B56,115 reliable?
The price and inventory of BZV55-B56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-B56,115 is usually 5 days.
3.What payment methods are accepted for BZV55-B56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-B56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55-B56,115?
BZV55-B56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55-B56,115 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 BZV55-B56,115?
For technical support, including BZV55-B56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-B56,115 requirements.
6.How does Aetrix verify that BZV55-B56,115 is sourced from the original manufacturer or authorized distributors?
All BZV55-B56,115 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 BZV55-B56,115 meets industry standards.
7.What is the process for return or replacement of BZV55-B56,115?
All BZV55-B56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-B56,115, 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 BZV55-B56,115 part is unused and in its original packaging.
Return procedure for BZV55-B56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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