Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BZV90-C4V3,115

Name: BZV90-C4V3,115
Brand: Nexperia USA Inc.
SKU: BZV90-C4V3,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZV90-C4V3,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-261-4, TO-261AA

Datasheet:: BZV90-C4V3,115.pdf

Description:: DIODE ZENER 4.3V 1.5W SOT223

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:845

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZV90-C4V3,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT223 package, designed for precision DC voltage reference and stabilization in power supply rails. It delivers a nominal Zener voltage of 4.3 V (±5%), with differential resistance ≤90 Ω at 5 mA test current, 1.5 W total power dissipation, and operates up to 150 °C junction temperature - used in industrial power supervisors and analog sensor biasing circuits.

For engineers reviewing the BZV90-C4V3,115 datasheet, BZV90-C4V3,115 pinout, BZV90-C4V3,115 application, or BZV90-C4V3,115 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (83.3 K/W), non-repetitive surge capability (40 W @ 100 μs), and SOT223 thermal pad layout compatibility with FR4 PCB copper area ≥2 cm².

Technical Context

This Zener diode operates in reverse breakdown mode with tightly controlled V_Z = 4.0–4.6 V at I_Ztest = 5 mA, exhibiting a negative temperature coefficient of −3.5 to −2.5 mV/K across its operating current range. Its low differential resistance (typ. 80 Ω) ensures stable regulation under varying load conditions.

The device uses a planar epitaxial construction optimized for reliability in continuous and transient reverse-bias applications. Its SOT223 package integrates a large collector pad for enhanced thermal conduction, enabling sustained 1.5 W dissipation when mounted on double-sided FR4 with 2 cm² copper area.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	4.0–4.6 V at 5 mA - defines stable regulation point for 3.3 V/5 V rail clamping and reference generation
Differential Resistance r_dif	≤90 Ω max at 5 mA - ensures <±20 mV output shift under ±1 mA load variation
Total Power Dissipation P_tot	1500 mW at T_amb = 25 °C - supports continuous regulation in compact industrial power stages
Non-repetitive Peak Power P_ZSM	40 W @ 100 μs - withstands ESD transients and inductive switching surges without degradation
Junction Temperature T_j	−65 to +150 °C - enables operation in extended-temperature industrial environments
Thermal Resistance R_{th j-a}	83.3 K/W - requires minimum 2 cm² double-sided copper pour for safe 1.5 W operation
Reverse Current I_R	≤3 μA at V_R = 3 V - guarantees low leakage in high-impedance reference paths

Pinout & Package

SOT223 plastic surface-mount package with integrated thermal pad (lead 2 and 4 are cathode-connected); 4-terminal configuration optimized for heat transfer and board-level stability.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Main forward-current path terminal; connects to lower-potential side in Zener bias configuration
2, 4	Cathode	Common Zener breakdown terminal; electrically tied and thermally coupled to exposed thermal pad
3	Anode	Secondary anode connection - redundant for mechanical robustness and current sharing in high-reliability layouts

Key Features

Feature	Design Value
E24-standard Zener voltage series	4.3 V nominal with ±5% tolerance - simplifies BOM consolidation across 37 variants (2.4–75 V)
Low-temperature-coefficient operation	−3.5 to −2.5 mV/K - minimizes drift over −40 to +125 °C ambient range in unregulated supplies
High surge immunity	40 W non-repetitive peak power @ 100 μs - protects downstream circuitry from line transients without external TVS
Thermally enhanced SOT223 package	83.3 K/W R_{th j-a} with 2 cm² copper - enables 1.5 W continuous dissipation without heatsink in space-constrained designs

Applications

Industrial Power Supervision

Analog Sensor Biasing

Use Scenario: Monitoring 5 V system rail in PLC I/O modules to trigger brown-out reset before microcontroller corruption.

IC Role / Device Role / Timing Role: Precision voltage reference for comparator input; clamps at 4.3 V to define trip threshold.

Use Value: Tight 4.0–4.6 V tolerance ensures consistent reset timing across temperature and unit-to-unit variation.

Use Scenario: Providing stable bias voltage to bridge-based pressure sensors in HVAC transmitters.

IC Role / Device Role / Timing Role: Low-noise Zener reference replacing higher-drift resistor-divider networks.

Use Value: 80 Ω differential resistance limits output impedance, reducing sensitivity to sensor cable capacitance and noise coupling.

DC-DC Converter Feedback

Overvoltage Protection Clamp

Use Scenario: Setting regulated output voltage in isolated flyback converters via optocoupler feedback loop.

IC Role / Device Role / Timing Role: Reference node for TL431-like feedback topology; replaces discrete resistor-Zener network.

Use Value: 1.5 W power rating allows direct use without series resistor, simplifying layout and improving long-term stability.

Use Scenario: Clamping 12 V automotive accessory rail against load-dump spikes in infotainment head units.

IC Role / Device Role / Timing Role: Secondary overvoltage clamp activated after primary TVS reaches knee voltage.

Use Value: 40 W surge rating absorbs residual energy not handled by upstream TVS, preventing IC latch-up or gate oxide damage.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C4V3	Same 4.3 V nominal, but SOT23 package; P_tot = 300 mW; R_{th j-a} = 375 K/W	Limited to low-power signal-level references; unsuitable for >100 mW continuous dissipation	Select when board space is critical and thermal budget permits only ~100 mW average power.
MMSZ4685	SOD-123 package; V_Z = 4.3 V ±5%; P_tot = 500 mW; r_dif = 120 Ω max	Higher dynamic impedance reduces regulation accuracy under load step changes	Prefer for cost-sensitive consumer applications where 1.5 W capability is unnecessary.

Compared with BZX84-C4V3 and MMSZ4685, the BZV90-C4V3,115 provides 3× and 3× higher continuous power handling respectively, with lower thermal resistance and tighter dynamic impedance - making it uniquely suitable for industrial power rail stabilization where thermal margin and regulation fidelity are design-critical.

Availability

BZV90-C4V3,115 is available at Aetrix Electronics and suitable for industrial power supervision, analog sensor biasing, DC-DC converter feedback, and overvoltage protection clamp applications requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for BZV90-C4V3,115 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 leader in high-volume discrete semiconductors, formed in 2017 from the former NXP Standard Products division, with core expertise in automotive-grade reliability and industrial power efficiency.

The BZV90 series belongs to Nexperia's voltage regulator diode product line, engineered specifically for robust, medium-power Zener regulation in harsh-environment power systems - emphasizing thermal resilience, surge immunity, and E24-standard voltage coverage.

FAQ

What is the maximum continuous reverse current this diode can handle at 4.3 V?

The BZV90-C4V3,115 is rated for continuous Zener current up to 350 mA at 25 °C ambient, derived from its 1.5 W power limit and 4.3 V nominal voltage (I_Zmax ≈ P_tot/V_Z). Derating applies above 25 °C per the 83.3 K/W thermal resistance - at 70 °C ambient, max continuous current drops to ~220 mA to maintain T_j ≤ 150 °C.

Can this diode replace a 1N4733A in existing designs?

Yes - the BZV90-C4V3,115 matches the 1N4733A's 4.3 V nominal Zener voltage and ±5% tolerance, but differs in package (SOT223 vs DO-41) and thermal performance. Its SOT223 footprint requires PCB redesign, yet offers superior thermal resistance (83.3 K/W vs ~100 K/W for DO-41 on FR4), enabling higher sustained power in dense layouts.

Is the cathode pin electrically isolated from the thermal pad?

No - pins 2 and 4 are internally bonded to the same cathode node and directly connected to the exposed thermal pad in the SOT223 package. This design maximizes heat transfer but requires the pad to be routed to cathode potential (typically ground or system return) on the PCB; floating or reverse-biased pad placement will cause thermal and electrical failure.

Does this part meet AEC-Q200 stress testing requirements for automotive use?

No - the BZV90-C4V3,115 is qualified to industrial-grade reliability standards (per Nexperia's standard product qualification), but is not AEC-Q200 certified. For automotive applications requiring qualification, Nexperia offers the PZUxxB series (e.g., PZU4.3B,115) in SOD-323, which carries full AEC-Q200 Grade 2 (−40 to +105 °C) certification and identical electrical specs.

BZV90-C4V3,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 4.3 V

Tolerance:: ±5%

Power - Max:: 1.5 W

Impedance (Max) (Zzt):: 90 Ohms

Current - Reverse Leakage @ Vr:: 3 µA @ 1 V

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 50 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BZV90-C4V3,115 FAQ

1.How can I place an order for BZV90-C4V3,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV90-C4V3,115 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 BZV90-C4V3,115 reliable?

The price and inventory of BZV90-C4V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV90-C4V3,115 is usually 5 days.

3.What payment methods are accepted for BZV90-C4V3,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV90-C4V3,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV90-C4V3,115?

BZV90-C4V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV90-C4V3,115 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 BZV90-C4V3,115?

For technical support, including BZV90-C4V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV90-C4V3,115 requirements.

6.How does Aetrix verify that BZV90-C4V3,115 is sourced from the original manufacturer or authorized distributors?

All BZV90-C4V3,115 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 BZV90-C4V3,115 meets industry standards.

7.What is the process for return or replacement of BZV90-C4V3,115?

All BZV90-C4V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV90-C4V3,115, 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 BZV90-C4V3,115 part is unused and in its original packaging.

Return procedure for BZV90-C4V3,115:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…