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Nexperia USA Inc. BZV85-C43,113
- Part No.:
- BZV85-C43,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZV85-C43,113.pdf
- Description:
- DIODE ZENER 43V 1.3W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
BZV85-C43,113 from Nexperia is a medium-power Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 43 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation at 25 °C ambient, and 60 W non-repetitive peak reverse power. It serves as a precision voltage reference or shunt regulator in low-to-medium power linear power supplies and overvoltage protection circuits.
For engineers reviewing the BZV85-C43,113 datasheet, BZV85-C43,113 pinout, BZV85-C43,113 application, or BZV85-C43,113 equivalent, key selection criteria include its 43 V Zener voltage, 75 Ω typical differential resistance at test current, −0.05 µA reverse leakage at 30 V, 30 V maximum reverse voltage rating before breakdown, and thermal resistance of 175 K/W junction-to-ambient (lead length 10 mm).
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable DC voltage across load terminals under varying current conditions. Its regulation relies on controlled avalanche and Zener mechanisms depending on voltage level-above ~6 V, avalanche dominates, yielding positive temperature coefficient behavior.
The device exhibits 75 Ω typical dynamic impedance at 5 mA test current, −0.05 µA reverse leakage at VR = 30 V, and a temperature coefficient of +34 mV/K at nominal operating current, enabling predictable drift compensation in reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 40.0 V to 46.0 V at IZ = 5 mA - defines regulated output voltage range under standard test conditions |
| Differential Resistance (rdif) | 75 Ω typical at IZ = 5 mA - determines voltage regulation sensitivity to current changes |
| Temperature Coefficient (SZ) | +34 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Total Power Dissipation (Ptot) | 1.3 W max at Tamb = 25 °C with 10 mm lead length - sets maximum continuous power handling capability |
| Non-repetitive Peak Reverse Power (PZSM) | 60 W for 100 µs square wave - supports transient overvoltage clamping without failure |
| Reverse Current (IR) | ≤0.05 µA at VR = 30 V - ensures minimal leakage in standby or high-impedance bias networks |
| Forward Voltage (VF) | ≤1.0 V at IF = 50 mA - defines forward conduction loss when used in polarity-sensitive protection schemes |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with cathode indicated by a colored band. Leads are tinned copper-clad steel, suitable for through-hole PCB mounting and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Ensures long-term stability and moisture resistance in industrial environments up to 200 °C junction temperature |
| E24 voltage grading | Enables precise selection across 33 discrete Zener voltages from 3.6 V to 75 V with ±5 % tolerance |
| Low dynamic impedance | 75 Ω typical at 5 mA allows tight voltage regulation under moderate load variations |
| Controlled temperature coefficient | +34 mV/K enables predictable thermal drift modeling for compensated reference designs |
| High surge robustness | 60 W non-repetitive peak power rating supports reliable transient suppression in power supply input stages |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Providing stable 43 V reference for feedback loop in linear regulator or adjustable switching converter. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise output setpoint via optocoupler or error amplifier input. Use Value: Maintains ±1.5 % output accuracy over temperature and line variations due to low rdif and predictable SZ. | Use Scenario: Clamping transient surges on 36 V automotive subsystem rails (e.g., body control module inputs). IC Role / Device Role / Timing Role: Passive crowbar element diverting excess energy to ground during load dump events. Use Value: Withstands 60 W/100 µs pulses without degradation, meeting ISO 7637-2 Pulse 5a requirements. |
| Signal Level Shifting | Comparator Threshold Setting |
Use Scenario: Biasing op-amp input stage to 43 V common-mode level in high-side sensing circuitry. IC Role / Device Role / Timing Role: Precision DC offset generator defining operating point for analog front-end amplifiers. Use Value: Low 0.05 µA leakage prevents input bias current errors in high-impedance sensor interfaces. | Use Scenario: Setting trip point for overvoltage detection comparator monitoring 48 V telecom power bus. IC Role / Device Role / Timing Role: Stable threshold reference ensuring consistent detection across temperature and aging. Use Value: ±5 % initial tolerance and +34 mV/K TC allow accurate trip window definition within ±3 % over −40 °C to +125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A | 43 V nominal, ±5 % tolerance, 1 W Ptot, DO-41 package, 75 Ω rdif | Lower power rating limits use in sustained 1.3 W dissipation scenarios | Select when board space or legacy design compatibility requires industry-standard 1N47xx footprint |
| BZX85C43 | 43 V nominal, ±5 % tolerance, 1.3 W Ptot, DO-41 package, 90 Ω rdif | Higher dynamic impedance reduces regulation precision under dynamic load steps | Select when cost sensitivity outweighs need for lowest possible rdif in non-critical references |
Compared with 1N4749A and BZX85C43, BZV85-C43,113 offers identical voltage rating and power handling but delivers superior regulation accuracy via lower 75 Ω differential resistance and tighter thermal coefficient control, making it preferred for precision reference and high-reliability protection roles.
Availability
BZV85-C43,113 is available at Aetrix Electronics and suitable for linear power supplies, automotive body electronics, telecom voltage supervision, and industrial sensor interface circuits requiring stable component supply and long-lifecycle support.
Supply support for BZV85-C43,113 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 sustainability.
The BZV85 series belongs to Nexperia's precision Zener regulator portfolio, engineered for stable voltage reference and overvoltage protection in industrial, automotive, and communications equipment where long-term parametric consistency is critical.
FAQ
What is the maximum continuous power dissipation for BZV85-C43,113?
The maximum continuous total power dissipation is 1.3 W at ambient temperature of 25 °C with 10 mm lead length on a PCB. Derating is required above 25 °C at 11.5 mW/°C based on Rth(j-a) = 175 K/W. This rating assumes adequate copper area (1 cm² per lead) and proper thermal layout.
How does the temperature coefficient affect regulation accuracy?
The BZV85-C43,113 has a +34 mV/K temperature coefficient at 5 mA test current, meaning its Zener voltage increases by approximately 34 mV per degree Celsius rise in junction temperature. This must be factored into system-level accuracy budgets, especially in unheated enclosures or high-power-density layouts.
Can BZV85-C43,113 replace BZX85C43 in existing designs?
Yes, BZV85-C43,113 is a direct form-fit-function replacement for BZX85C43 in DO-41 packages, sharing identical pinout, voltage rating, and power dissipation. Its lower 75 Ω differential resistance improves regulation stability, but no layout or schematic changes are needed for drop-in substitution.
What is the reverse leakage current at 30 V?
The reverse leakage current is guaranteed ≤0.05 µA at VR = 30 V and Tj = 25 °C. This ultra-low leakage minimizes error in high-impedance bias networks and ensures negligible quiescent current draw in always-on protection circuits.
BZV85-C43,113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 43 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 75 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 30 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
BZV85-C43,113 FAQ
1.How can I place an order for BZV85-C43,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV85-C43,113 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 BZV85-C43,113 reliable?
The price and inventory of BZV85-C43,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV85-C43,113 is usually 5 days.
3.What payment methods are accepted for BZV85-C43,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV85-C43,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV85-C43,113?
BZV85-C43,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV85-C43,113 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 BZV85-C43,113?
For technical support, including BZV85-C43,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV85-C43,113 requirements.
6.How does Aetrix verify that BZV85-C43,113 is sourced from the original manufacturer or authorized distributors?
All BZV85-C43,113 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 BZV85-C43,113 meets industry standards.
7.What is the process for return or replacement of BZV85-C43,113?
All BZV85-C43,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZV85-C43,113, 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 BZV85-C43,113 part is unused and in its original packaging.
Return procedure for BZV85-C43,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV85-C43,113 Tags
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