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Nexperia USA Inc. BZV55-B4V3,115
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- Part No.:
- BZV55-B4V3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-B4V3,115.pdf
- Description:
- DIODE ZENER 4.3V 500MW LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:934
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Product details
Overview
BZV55-B4V3,115 from Nexperia is a low-power Zener voltage regulator diode in a hermetically sealed glass SOD80C surface-mount package, rated for 4.3 V nominal regulation at 5 mA with ±2 % tolerance, 410 Ω typical differential resistance, and −3.5 mV/K to −2.5 mV/K temperature coefficient. It delivers stable reference voltage in low-current bias networks for power supply feedback, sensor excitation, and signal clamping in industrial control modules.
For engineers reviewing the BZV55-B4V3,115 datasheet, BZV55-B4V3,115 pinout, BZV55-B4V3,115 application, or BZV55-B4V3,115 equivalent, this page provides verified package mapping (SOD80C), terminal polarity (cathode band marked), regulation accuracy, thermal resistance (300 K/W junction-to-solder-point), and real-world use cases in precision analog circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 5 mA, delivering a tightly controlled 4.21–4.39 V working voltage range. Its low differential resistance (410 Ω typ. at IZ = 5 mA) ensures minimal output voltage variation under load shifts, while its negative temperature coefficient (−3.5 to −2.5 mV/K) enables predictable drift compensation in temperature-sensitive references.
Designed for low-power regulation, it supports non-repetitive peak reverse power dissipation up to 40 W (100 µs square wave, Tj = 25 °C), total power dissipation up to 500 mW (Tamb ≤ 50 °C on ceramic substrate), and reverse leakage < 3 µA at VR = 1 V - enabling reliable operation in battery-powered and standby-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 4.3 V (range 4.21–4.39 V at IZ = 5 mA; ±2 % tolerance) |
| Differential Resistance | 410 Ω typical (low impedance improves regulation stability under varying load) |
| Temperature Coefficient | −3.5 to −2.5 mV/K (predictable negative drift aids thermal compensation design) |
| Forward Voltage | ≤ 0.9 V at IF = 10 mA (enables use as clamp or level shifter in forward bias) |
| Reverse Leakage Current | ≤ 3 µA at VR = 1 V (low leakage preserves accuracy in high-impedance bias networks) |
| Total Power Dissipation | 500 mW max (Tamb ≤ 50 °C on 10 × 10 × 0.6 mm ceramic substrate) |
| Junction-to-Solder-Point Thermal Resistance | 300 K/W (supports thermal management in compact SMT layouts) |
Pinout & Package
Hermetically sealed glass SOD80C package: 3.3–3.7 mm length, 1.45–1.60 mm width, 0.3 mm height; cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 | Anode | Connected to ground or lower-potential rail; completes bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % voltage tolerance | Enables precise reference generation without post-calibration in cost-sensitive designs |
| Hermetic glass SMD package | Ensures long-term parameter stability and moisture resistance in harsh environments |
| Low differential resistance (410 Ω typ.) | Minimizes output voltage deviation across ±1 mA load current changes |
| Non-repetitive 40 W surge rating | Withstands transient overvoltage events in unprotected input stages |
| −3.5 to −2.5 mV/K tempco | Allows predictable thermal drift modeling for compensated reference circuits |
Applications
| Power Supply Feedback | Sensor Excitation Reference |
|---|---|
|
Use Scenario: Providing stable 4.3 V reference for optocoupler-based feedback in isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage reference in secondary-side error amplifier loop. Use Value: Tight ±2 % tolerance and low 410 Ω dynamic resistance maintain regulation accuracy despite transformer coupling variations and load transients. |
Use Scenario: Biasing resistive temperature detectors (RTDs) in industrial temperature transmitters. IC Role / Device Role / Timing Role: Supplies stable excitation voltage to RTD bridge, minimizing self-heating and measurement drift. Use Value: Low 3 µA reverse leakage prevents current injection errors into high-impedance bridge nodes at ambient temperatures. |
| Signal Clamping | Microcontroller I/O Protection |
|
Use Scenario: Limiting analog input voltage to 4.3 V in data acquisition front-ends interfacing with 5 V ADCs. IC Role / Device Role / Timing Role: Reverse-biased Zener clamps overvoltage spikes before they reach sensitive converter inputs. Use Value: 40 W non-repetitive surge rating absorbs ESD-like transients without degradation, preserving ADC integrity. |
Use Scenario: Protecting GPIO pins of ARM Cortex-M microcontrollers against accidental 5 V exposure. IC Role / Device Role / Timing Role: Acts as bidirectional clamp: forward diode limits negative excursions; Zener regulates positive overvoltage. Use Value: Forward voltage ≤ 0.9 V at 10 mA ensures fast turn-on during negative transients, complementing 4.3 V positive clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZV55-C4V3,115 | ±5 % tolerance (4.0–4.6 V range); higher 600 Ω max differential resistance | Acceptable where regulation accuracy < ±3 % suffices and cost is prioritized | Select when tighter tolerance is unnecessary and BOM simplification across multiple Zener voltages is desired |
| MMSZ4V3T1G | Same 4.3 V nominal, ±5 % tolerance; SOD-123 package; 500 mW Ptot; 300 Ω max rdif | Higher thermal resistance (400 K/W j-a) limits power handling in dense layouts | Prefer for legacy SOD-123 footprint compatibility; avoid if SOD80C's lower Rth(j-sp) (300 K/W) is required for thermal reliability |
Compared with BZV55-B4V3,115, the BZV55-C4V3,115 trades regulation precision for broader tolerance and simplified sourcing, while MMSZ4V3T1G offers similar electrical performance but inferior thermal coupling in space-constrained PCBs due to higher junction-to-ambient resistance.
Availability
BZV55-B4V3,115 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and embedded protection circuits requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for BZV55-B4V3,115 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZV55 series belongs to Nexperia's precision Zener regulator portfolio, engineered for stable voltage reference and clamping in space-constrained, cost-sensitive industrial and consumer electronics.
FAQ
What is the maximum continuous power dissipation for BZV55-B4V3,115?
The maximum continuous total power dissipation is 500 mW when mounted on a 10 × 10 × 0.6 mm ceramic substrate at ambient temperatures ≤ 50 °C. Derating applies above that temperature per the thermal resistance specification (Rth(j-a) = 380 K/W).
How is cathode polarity identified on the SOD80C package?
The cathode is marked by a distinct black band on the glass body, aligned with Pin 1 as shown in the official Nexperia pinning diagram. This marking is visible under standard optical inspection and must be oriented toward the regulated output node in circuit layout.
Can BZV55-B4V3,115 be used in forward conduction mode?
Yes - its forward voltage is guaranteed ≤ 0.9 V at 10 mA, making it suitable for low-drop clamping or level-shifting applications. However, its primary design intent and characterization are for reverse-bias Zener regulation, not rectification or switching.
What is the typical reverse leakage current at 1 V reverse bias?
At VR = 1 V and Tj = 25 °C, the reverse leakage current is ≤ 3 µA - a value confirmed in Table 7 of the Nexperia datasheet for BZV55-B4V3. This low leakage supports high-impedance bias networks without significant error current.
BZV55-B4V3,115 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):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 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-B4V3,115 FAQ
1.How can I place an order for BZV55-B4V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-B4V3,115 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-B4V3,115 reliable?
The price and inventory of BZV55-B4V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-B4V3,115 is usually 5 days.
3.What payment methods are accepted for BZV55-B4V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-B4V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55-B4V3,115?
BZV55-B4V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55-B4V3,115 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-B4V3,115?
For technical support, including BZV55-B4V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-B4V3,115 requirements.
6.How does Aetrix verify that BZV55-B4V3,115 is sourced from the original manufacturer or authorized distributors?
All BZV55-B4V3,115 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-B4V3,115 meets industry standards.
7.What is the process for return or replacement of BZV55-B4V3,115?
All BZV55-B4V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-B4V3,115, 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-B4V3,115 part is unused and in its original packaging.
Return procedure for BZV55-B4V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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