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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZV55-C56,115

Name: BZV55-C56,115
Brand: Nexperia USA Inc.
SKU: BZV55-C56,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV55-C56,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: DO-213AC, MINI-MELF, SOD-80

Datasheet:: BZV55-C56,115.pdf

Description:: DIODE ZENER 56V 500MW LLDS

Quantity:: RFQ Add To RFQ list

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Inventory:2,050

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Product details

Overview

BZV55-C56,115 from Nexperia is a 56 V ±5 % tolerance Zener voltage regulator diode in a hermetically sealed glass SOD80C surface-mount package, rated for 500 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision low-power voltage reference and regulation in analog signal conditioning circuits.

For engineers reviewing the BZV55-C56,115 datasheet, BZV55-C56,115 pinout, BZV55-C56,115 application, or BZV55-C56,115 equivalent, this part serves as a stable shunt reference in power supply feedback loops, sensor biasing networks, overvoltage protection clamps, and analog front-end voltage stabilization where tight thermal coefficient control and low capacitance are required.

Technical Context

This Zener diode operates in reverse breakdown with a nominal working voltage of 56 V at I_Z = 2 mA, exhibiting a typical temperature coefficient of +70 mV/K and differential resistance of 100 Ω at I_Z = 2 mA. Its low 40 pF capacitance at 0 V and 1 MHz enables use in high-frequency reference and clamping applications without signal distortion.

The device features a cathode-marked SOD80C package with 380 K/W junction-to-ambient thermal resistance in free air, supporting operation up to +200 °C junction temperature. It delivers 0.9 V forward voltage at 10 mA and maintains ≤100 nA reverse leakage at 0.7 × V_Z(nom) (39.2 V).

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage	56 V at I_Z = 2 mA - defines precise shunt regulation point for feedback and reference circuits
Tolerance	±5 % - supports cost-sensitive designs where tighter 2 % tolerance is not required
Total Power Dissipation	500 mW at T_amb ≤ 50 °C - sets maximum continuous DC power handling in PCB-mounted operation
Non-repetitive Peak Reverse Power	40 W for 100 µs pulse - enables transient overvoltage clamping without failure
Differential Resistance	100 Ω (typ) at I_Z = 2 mA - determines output impedance and regulation sensitivity to current variation
Temperature Coefficient	+70 mV/K (typ) - quantifies voltage drift per degree Celsius, critical for temperature-stable references
Reverse Leakage Current	≤100 nA at 39.2 V - ensures minimal error current in high-impedance bias networks
Diode Capacitance	40 pF at 0 V, 1 MHz - limits high-frequency loading in RF or fast-signal clamp applications

Pinout & Package

Hermetically sealed glass SOD80C package: 3.3–3.7 mm length, 1.45–1.60 mm width, 0.3 mm height; cathode indicated by black band.

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 current path during regulation

Key Features

Feature	Design Value
Hermetic glass SMD construction	Ensures long-term stability and moisture resistance in harsh environments without conformal coating
Low differential resistance (100 Ω)	Minimizes output voltage variation under load current changes in precision reference applications
Controlled temperature coefficient (+70 mV/K)	Enables predictable drift compensation in temperature-critical analog circuits
40 pF capacitance at 0 V	Preserves signal integrity in high-speed clamping and RF detector bias networks
40 W surge capability (100 µs)	Provides robust transient suppression without external TVS devices in space-constrained designs

Applications

Power Supply Feedback Reference

Sensor Biasing Network

Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies via optocoupler feedback loop.

IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 56 V threshold to error amplifier input.

Use Value: Maintains ±1.5 % output regulation across line/load/temperature with no active compensation needed.

Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or strain gauges in industrial measurement modules.

IC Role / Device Role / Timing Role: Low-noise, low-capacitance voltage source establishing known bias point for ratiometric sensing.

Use Value: Enables <10 ppm/°C system-level drift when paired with matched resistor dividers and instrumentation amplifiers.

Overvoltage Clamp

Analog Front-End Protection

Use Scenario: Limiting input voltage to microcontroller ADC inputs exposed to 48 V industrial bus transients.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing 40 W surges within 100 µs to protect downstream circuitry.

Use Value: Prevents latch-up or gate oxide damage without adding series impedance that degrades signal bandwidth.

Use Scenario: Protecting op-amp inputs in battery-powered portable instrumentation from ESD and cable discharge events.

IC Role / Device Role / Timing Role: Low-capacitance (40 pF), low-leakage (≤100 nA) clamping element placed directly at IC pins.

Use Value: Achieves IEC 61000-4-2 Level 4 compliance while preserving >1 MHz small-signal bandwidth.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5256BS-7-F (Diodes Inc.)	Same 56 V ±5 %, SOD-323 package, 200 mW P_tot, higher R_dif (150 Ω), 30 pF C_d	Lower power rating limits use in sustained regulation; smaller footprint reduces thermal mass	Select when board area is constrained and average power < 200 mW; verify thermal derating at elevated ambient
BZX84-C56 (Nexperia)	Same 56 V ±5 %, SOT-23 package, 300 mW P_tot, 110 Ω R_dif, 50 pF C_d, plastic encapsulation	Plastic package offers lower cost but reduced long-term parameter stability vs. hermetic glass	Prefer for cost-driven consumer applications where hermeticity and 500 mW headroom are not required

Compared with MMBZ5256BS-7-F and BZX84-C56, BZV55-C56,115 provides 67 % higher continuous power handling and hermetic reliability essential for industrial and automotive-adjacent systems, while maintaining competitive capacitance and leakage performance.

Availability

BZV55-C56,115 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and analog protection circuits requiring stable component supply with guaranteed long-term parametric consistency.

Supply support for BZV55-C56,115 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, analog, and discrete components with focus on efficiency, reliability, and miniaturization.

BZV55-C56,115 belongs to the BZV55 series of low-power Zener regulators designed specifically for precision voltage reference and clamping in space- and power-constrained industrial and communication equipment.

FAQ

What is the maximum continuous reverse current for reliable operation?

The BZV55-C56,115 supports up to 8.9 mA continuous reverse current at 56 V to maintain 500 mW dissipation within derated limits at T_amb = 50 °C. Exceeding this requires thermal analysis using its 380 K/W junction-to-ambient resistance and ambient temperature constraints.

How does the +70 mV/K temperature coefficient affect accuracy over –40 °C to +125 °C?

Over that range, the Zener voltage shifts approximately +11.6 V (70 mV/K × 165 K), resulting in a 20.7 % deviation from nominal 56 V. For stable references, this must be compensated via circuit design or selected only where absolute accuracy is secondary to regulation function.

Can this diode replace a 51 V Zener in an existing design?

No - the 56 V nominal voltage differs significantly from 51 V, altering regulation thresholds and feedback ratios. Substitution requires recalculating series resistors, verifying power dissipation margins, and validating loop stability; direct replacement is not electrically safe or functionally equivalent.

Is the SOD80C package compatible with standard reflow profiles?

Yes - the hermetic glass SOD80C package is qualified for lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C. The recommended footprint (2.30 mm × 4.30 mm solder lands) and thermal relief design ensure reliable joint formation without cracking or delamination.

BZV55-C56,115 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:: ±5%

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-C56,115 FAQ

1.How can I place an order for BZV55-C56,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV55-C56,115 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-C56,115 reliable?

The price and inventory of BZV55-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-C56,115 is usually 5 days.

3.What payment methods are accepted for BZV55-C56,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-C56,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV55-C56,115?

BZV55-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV55-C56,115 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-C56,115?

For technical support, including BZV55-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-C56,115 requirements.

6.How does Aetrix verify that BZV55-C56,115 is sourced from the original manufacturer or authorized distributors?

All BZV55-C56,115 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-C56,115 meets industry standards.

7.What is the process for return or replacement of BZV55-C56,115?

All BZV55-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-C56,115, 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-C56,115 part is unused and in its original packaging.

Return procedure for BZV55-C56,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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