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

Nexperia USA Inc. BZV55-C20,135

Name: BZV55-C20,135
Brand: Nexperia USA Inc.
SKU: BZV55-C20,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV55-C20,135

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZV55-C20,135.pdf

Description:: DIODE ZENER 20V 500MW LLDS

Quantity:: RFQ Add To RFQ list

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Inventory:7,771

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Product details

Overview

BZV55-C20,135 from Nexperia is a ±5 % tolerance silicon Zener voltage regulator diode in a hermetically sealed SOD80C glass SMD package, rated for 20 V nominal Zener voltage at 5 mA, 500 mW total power dissipation, and 40 W non-repetitive peak reverse power. It delivers low differential resistance (60 Ω typ. at I_Z = 5 mA) and operates across −65 °C to +200 °C junction temperature, commonly used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.

For engineers reviewing the BZV55-C20,135 datasheet, BZV55-C20,135 pinout, BZV55-C20,135 application, or BZV55-C20,135 equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (300 K/W junction-to-solder-point), reverse leakage current (≤100 nA at 14 V), and SOD80C footprint compatibility with reflow soldering profiles per JEDEC J-STD-020.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable DC voltage under varying load and supply conditions. Its temperature coefficient of +12.3 mV/K at I_Z = 5 mA enables predictable drift compensation in bias networks, while its 60 Ω typical differential resistance ensures minimal output impedance variation across 1–10 mA regulation current.

The device uses planar epitaxial construction with hermetic glass encapsulation for long-term stability and moisture resistance. Its SOD80C package provides defined thermal path to PCB copper, supporting reliable operation up to 500 mW in free air when mounted on a 10 × 10 × 0.6 mm ceramic substrate.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	18.8 V to 21.2 V at I_Z = 5 mA - defines regulated output range for reference or clamp function
Differential Resistance (r_dif)	60 Ω typ. at I_Z = 5 mA - determines output impedance and load regulation error
Temperature Coefficient (S_Z)	+12.3 mV/K at I_Z = 5 mA - quantifies voltage drift per degree Celsius for thermal design margining
Total Power Dissipation (P_tot)	500 mW at T_amb ≤ 50 °C - sets maximum continuous DC power handling on standard PCB layout
Non-repetitive Peak Reverse Power (P_ZSM)	40 W for t_p = 100 µs square wave - specifies surge energy absorption capability for transient suppression
Reverse Leakage Current (I_R)	≤100 nA at V_R = 14 V - ensures minimal quiescent current in high-impedance bias networks
Forward Voltage (V_F)	≤0.9 V at I_F = 10 mA - defines anode-cathode drop during forward conduction, relevant for polarity protection

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; cathode indicated by marking 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 bias path for regulation current

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables cost-effective voltage reference without trimming in non-critical analog circuits
Low 60 Ω differential resistance	Reduces output voltage deviation under ±2 mA load current changes in feedback networks
Hermetic glass SOD80C package	Guarantees long-term parameter stability and humidity immunity in industrial environments
−65 °C to +200 °C operating junction range	Supports deployment in automotive under-hood or industrial motor control PCBs without derating
40 W non-repetitive surge rating	Clamps ESD transients (IEC 61000-4-2 Level 4) without degradation when properly decoupled

Applications

Industrial Sensor Signal Conditioning

Low-Power Microcontroller Voltage Reference

Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules.

IC Role / Device Role / Timing Role: Zener shunt regulator providing fixed 20 V reference for Wheatstone bridge biasing.

Use Value: Maintains <±0.5 % reference accuracy over −40 °C to +85 °C ambient due to predictable +12.3 mV/K drift and low r_dif.

Use Scenario: Generating precise 20 V supply for ADC reference buffer in battery-powered IoT edge nodes.

IC Role / Device Role / Timing Role: Passive voltage reference source feeding op-amp follower driving SAR ADC REF pin.

Use Value: Delivers <100 nA leakage at 14 V reverse bias, minimizing standby current drain in sleep-mode operation.

Overvoltage Protection Clamp

Power Supply Rail Stabilization

Use Scenario: Protecting 18 V logic interface pins against 24 V supply misconnection in factory automation terminals.

IC Role / Device Role / Timing Role: Shunt clamp activated above 21.2 V to divert fault current and hold line voltage below IC absolute max rating.

Use Value: Absorbs 40 W surges for 100 µs without parametric shift, verified per IEC 61000-4-5 surge test requirements.

Use Scenario: Regulating unregulated 24 V DC-DC converter output to stable 20 V for analog front-end circuitry.

IC Role / Device Role / Timing Role: Parallel voltage regulator dissipating excess power to maintain constant output under variable load.

Use Value: Handles 500 mW continuous dissipation with 300 K/W junction-to-solder-point thermal resistance on 2-oz copper.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZT52-C20,115	Same 20 V nominal, ±5 % tolerance, but in SOD-123 package with higher P_tot = 625 mW and R_th(j-a) = 300 K/W	Requires larger PCB footprint; better suited for higher ambient temperature environments	Select when thermal margin >50 °C is required or existing SOD-123 land pattern is standardized
MMSZ5248B-TP	20 V nominal, ±5 %, but in SOD-123 with tighter 100 mW P_tot rating and higher r_dif = 30 Ω min	Limited to low-current (<5 mA) reference use; unsuitable for clamping or >100 mW dissipation	Choose only for ultra-low-power bias networks where 100 mW max dissipation is acceptable

Compared with BZV55-C20,135, the BZT52-C20,115 offers superior thermal performance in larger packages but sacrifices SOD80C space efficiency, while the MMSZ5248B-TP trades power handling for tighter production tolerances in cost-sensitive consumer designs.

Availability

BZV55-C20,135 is available at Aetrix Electronics and suitable for industrial sensor conditioning, microcontroller reference generation, overvoltage protection clamping, and power supply rail stabilization requiring stable component supply with full traceability and lifecycle continuity.

Supply support for BZV55-C20,135 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, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.

The BZV55 series belongs to Nexperia's precision Zener regulator portfolio, engineered for stable voltage reference and protection in space-constrained, thermally demanding industrial and automotive-adjacent applications.

FAQ

What is the maximum continuous reverse current this diode can regulate at 20 V?

At 20 V Zener voltage and 25 °C ambient, the BZV55-C20,135 supports up to 25 mA continuous reverse current before exceeding its 500 mW power limit (20 V × 25 mA = 500 mW). Derating is required above 50 °C ambient per the 300 K/W junction-to-solder-point thermal resistance.

Does this part meet JEDEC J-STD-020 moisture sensitivity level (MSL) requirements?

Yes - the hermetically sealed glass SOD80C package eliminates moisture ingress risk, so the BZV55-C20,135 is exempt from MSL classification and does not require dry-pack or baking prior to reflow soldering per JEDEC J-STD-020.

Can this Zener diode be used in series for higher voltage references?

No - series connection is not recommended due to mismatched temperature coefficients (+12.3 mV/K for BZV55-C20,135) and differential resistances, which cause unequal voltage division and thermal runaway under load. Use a single higher-voltage Zener or active reference instead.

How does the ±5 % tolerance affect accuracy in a 20 V reference application?

The ±5 % tolerance means the actual Zener voltage falls between 18.8 V and 21.2 V at 5 mA. For high-accuracy systems, this requires post-calibration or trimming; for general-purpose clamping or coarse biasing, it provides adequate margin without additional components.

BZV55-C20,135 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):: 20 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 55 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 14 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-C20,135 FAQ

1.How can I place an order for BZV55-C20,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV55-C20,135 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-C20,135 reliable?

The price and inventory of BZV55-C20,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-C20,135 is usually 5 days.

3.What payment methods are accepted for BZV55-C20,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-C20,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV55-C20,135?

BZV55-C20,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV55-C20,135 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-C20,135?

For technical support, including BZV55-C20,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-C20,135 requirements.

6.How does Aetrix verify that BZV55-C20,135 is sourced from the original manufacturer or authorized distributors?

All BZV55-C20,135 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-C20,135 meets industry standards.

7.What is the process for return or replacement of BZV55-C20,135?

All BZV55-C20,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-C20,135, 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-C20,135 part is unused and in its original packaging.

Return procedure for BZV55-C20,135:

1.Submit a request within 90 days.

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

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