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Nexperia USA Inc. BZV90-C43,115
- Part No.:
- BZV90-C43,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BZV90-C43,115.pdf
- Description:
- DIODE ZENER 43V 1.5W SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:8,290
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Product details
Overview
BZV90-C43,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT223 package, designed for precision DC voltage reference and regulation at nominal 43 V with ±5% tolerance, 2 Ω typical differential resistance, and 30.1 mA non-repetitive peak reverse current capability. It operates up to 150 °C junction temperature and delivers stable regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the BZV90-C43,115 datasheet, BZV90-C43,115 pinout, BZV90-C43,115 application, or BZV90-C43,115 equivalent, key selection criteria include working voltage accuracy (40–46 V), thermal resistance (83.3 K/W), reverse current at VR = 30 V (≤0.05 μA), and SOT223 thermal pad layout compatibility.
Technical Context
This Zener diode functions as a two-terminal shunt voltage reference, maintaining stable output voltage across a defined test current (5 mA) with low dynamic impedance. Its temperature coefficient of +0.6 mV/K at IZ = 5 mA enables predictable drift compensation in mid-voltage regulation stages.
The device uses silicon planar epitaxial construction with a cathode-connected thermal pad (pins 2 & 4) for enhanced heat dissipation on FR4 PCBs with ≥2 cm² copper area. It supports non-repetitive surge handling up to 40 W for 100 μs pulses without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 40–46 V at IZtest = 5 mA; defines regulated output range in feedback networks |
| Differential Resistance (rdif) | 2 Ω typical at IZtest; ensures minimal output voltage shift under load variation |
| Temp. Coefficient (SZ) | +0.6 mV/K at IZ = 5 mA; enables predictable thermal drift modeling |
| Total Power Dissipation (Ptot) | 1500 mW at Tamb = 25 °C; sets continuous DC power limit on standard PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 μs square wave; supports transient overvoltage clamping |
| Reverse Current (IR) | ≤0.05 μA at VR = 30 V; guarantees low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | −65 to +150 °C; validates operation in industrial ambient environments |
Pinout & Package
SOT223 plastic surface-mounted package with exposed collector pad (pin 3) for thermal conduction; 4-lead configuration optimized for medium-power dissipation on double-sided FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Primary anode connection; used for forward bias or series configuration |
| 2 & 4 | Cathode | Parallel cathode terminals; both must be connected to regulated node or ground return |
| 3 | Thermal Pad / Anode | Exposed copper pad tied to anode; provides primary thermal path to PCB copper area |
Key Features
| Feature | Design Value |
|---|---|
| E24 Standard Voltage Range | 43 V nominal with ±5% tolerance enables drop-in replacement across common reference points |
| Low Differential Resistance | 2 Ω typical ensures <10 mV output shift per 5 mA load change in regulation loop |
| Thermally Optimized SOT223 | 83.3 K/W Rth j-a allows 1.5 W continuous dissipation with only 2 cm² PCB copper |
| Controlled Temperature Drift | +0.6 mV/K coefficient permits accurate compensation in wide-temperature designs |
| High Surge Withstand | 40 W non-repetitive pulse rating supports IEC 61000-4-5 level 3 surge protection |
Applications
| Power Supply Feedback Regulation | Overvoltage Protection Clamping |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or forward converter feedback paths using optocoupler-coupled TL431 alternatives. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 43 V threshold to control PWM duty cycle via error amplifier input. Use Value: Enables ±1% output regulation accuracy with minimal external components and no active biasing. | Use Scenario: Protecting 36 V nominal battery management system inputs against load dump transients up to 60 V. IC Role / Device Role / Timing Role: Passive clamping element diverting surge energy to ground when input exceeds 43 V. Use Value: Limits peak voltage to safe levels without response delay or power loss during normal operation. |
| Reference Voltage Source | Industrial Sensor Excitation |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in process control transmitters. IC Role / Device Role / Timing Role: Precision DC reference generating fixed 43 V bias for Wheatstone bridge arms. Use Value: Reduces measurement drift to <0.01%/°C by minimizing reference voltage temperature coefficient impact. | Use Scenario: Biasing high-voltage op-amp stages in analog front-ends for 4–20 mA loop-powered field instruments. IC Role / Device Role / Timing Role: Local rail stabilization element ensuring clean 43 V supply for signal conditioning ICs. Use Value: Suppresses supply ripple below 100 μV RMS, preserving 16-bit ADC effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C43 | Same 43 V nominal, but SOT23 package; Ptot = 300 mW; rdif = 90 Ω typical | Limited to low-power references; unsuitable for >100 mW continuous dissipation | Select when board space is constrained and thermal budget is ≤300 mW |
| 1N4747A | 43 V nominal, DO-41 through-hole; Ptot = 1000 mW; rdif = 15 Ω typical; no thermal pad | Requires larger PCB footprint; lacks SMT thermal performance for high-reliability industrial use | Select for legacy through-hole assembly or where manual rework access is required |
Compared with BZX84-C43 and 1N4747A, the BZV90-C43,115 offers 5× higher continuous power handling than the SOT23 variant and superior thermal resistance control versus the DO-41 part-making it optimal for compact, high-stability SMT power regulation where sustained 1.5 W dissipation is needed.
Availability
BZV90-C43,115 is available at Aetrix Electronics and suitable for industrial power supplies, battery management systems, sensor excitation circuits, and overvoltage protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZV90-C43,115 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 discrete semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and computing markets.
The BZV90 series belongs to Nexperia's voltage regulator diode product line, engineered for robust DC voltage reference and regulation in space-constrained, thermally demanding applications where precision and long-term stability are critical.
FAQ
What is the maximum continuous power dissipation for BZV90-C43,115?
The BZV90-C43,115 has a total power dissipation rating of 1500 mW at Tamb = 25 °C when mounted on an FR4 PCB with 2 cm² double-sided copper area. Derating is required above 25 °C ambient, following the 83.3 K/W thermal resistance specification. At 70 °C ambient, maximum continuous power drops to approximately 600 mW.
How does the temperature coefficient affect regulation accuracy over temperature?
With a typical temperature coefficient of +0.6 mV/K at 5 mA test current, the BZV90-C43,115 exhibits a +12.6 mV shift over a 21 °C rise (e.g., 25 °C to 46 °C). This corresponds to ~0.03% change in 43 V output, enabling stable regulation in industrial environments without active compensation.
Can BZV90-C43,115 replace BZX84-C43 in existing designs?
No direct replacement is possible due to differing packages (SOT223 vs. SOT23), thermal performance (1500 mW vs. 300 mW), and differential resistance (2 Ω vs. 90 Ω). Layout redesign, thermal validation, and regulation loop stability analysis are required before substitution.
What is the significance of pins 2 and 4 being both labeled cathode?
Pins 2 and 4 are internally shorted cathode terminals in the SOT223 package, providing dual connection points to reduce current density and improve solder joint reliability. Both must be connected to the same net-typically the regulated node or ground-to ensure rated surge current sharing and thermal performance.
BZV90-C43,115 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):
- 43 V
- Tolerance:
- ±5%
- Power - Max:
- 1.5 W
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 30.1 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-C43,115 FAQ
1.How can I place an order for BZV90-C43,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV90-C43,115 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-C43,115 reliable?
The price and inventory of BZV90-C43,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV90-C43,115 is usually 5 days.
3.What payment methods are accepted for BZV90-C43,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV90-C43,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV90-C43,115?
BZV90-C43,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV90-C43,115 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-C43,115?
For technical support, including BZV90-C43,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV90-C43,115 requirements.
6.How does Aetrix verify that BZV90-C43,115 is sourced from the original manufacturer or authorized distributors?
All BZV90-C43,115 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-C43,115 meets industry standards.
7.What is the process for return or replacement of BZV90-C43,115?
All BZV90-C43,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV90-C43,115, 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-C43,115 part is unused and in its original packaging.
Return procedure for BZV90-C43,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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