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Nexperia USA Inc. NZH4V3B,115
- Part No.:
- NZH4V3B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
NZH4V3B,115.pdf
- Description:
- DIODE ZENER 4.3V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:15,768
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Product details
Overview
NZH4V3B,115 from Nexperia is a single Zener diode in SOD123F package designed for precision voltage regulation and overvoltage protection in low-power analog and automotive circuits. It delivers a nominal Zener voltage of 4.3 V (min 4.17 V, max 4.43 V at IZ = 20 mA), differential resistance ≤40 Ω, reverse current ≤5 μA at 1 V, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the NZH4V3B,115 datasheet, NZH4V3B,115 pinout, NZH4V3B,115 application, or NZH4V3B,115 equivalent, key selection criteria include Zener voltage tolerance, low rdif for stable regulation under load variation, thermal resistance (Rth(j-a) = 250 K/W on FR4), SOD123F footprint compatibility, and AEC-Q101 compliance for harsh-environment deployment.
Technical Context
This Zener diode operates as a two-terminal shunt regulator, maintaining a stable reference voltage across its cathode-anode terminals when reverse-biased above VZ. Its low differential resistance (≤40 Ω) ensures minimal voltage drift with ±5 mA current change at 20 mA test condition.
Thermal performance is defined by junction-to-ambient resistance of 250 K/W (FR4 PCB) and 125 K/W (ceramic Al2O3), enabling reliable operation up to Tj = 150 °C. The device supports pulse forward currents up to 250 mA with tp ≤ 300 μs and duty cycle ≤ 0.02.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nom) | 4.3 V - Stable regulation point at 20 mA, ±2.9% tolerance (4.17–4.43 V) |
| rdif | ≤40 Ω - Low dynamic impedance ensures <±0.2 V output shift for ±5 mA load change |
| IR @ VR = 1 V | ≤5 μA - Minimal leakage enables low-power standby regulation without battery drain |
| Ptot (Tamb ≤ 25 °C) | 500 mW - Maximum continuous dissipation on FR4 PCB; derates linearly above 25 °C |
| Rth(j-a) | 250 K/W - Thermal resistance defines junction temperature rise per watt on standard FR4 layout |
| Cd @ f = 1 MHz | 450 pF - Junction capacitance impacts high-frequency noise suppression capability |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, body electronics, and ADAS sensors |
Pinout & Package
SOD123F surface-mount plastic package: 2.5–2.7 mm length × 1.2–1.5 mm width × 0.9–1.1 mm height; cathode marked by bar; optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive temperature range (−55 °C to +150 °C) and mechanical stress requirements |
| Low differential resistance | ≤40 Ω ensures <±0.2 V regulation error across ±5 mA load current variation at 20 mA nominal |
| SOD123F footprint | Compact 2.6 × 1.3 mm outline compatible with high-density PCB layouts and automated assembly |
| Controlled Zener voltage tolerance | ±2.9% (4.17–4.43 V) enables precise reference generation without external trimming |
| Low reverse leakage | ≤5 μA at 1 V reverse bias minimizes quiescent current in always-on power rails |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC inputs monitoring door lock status, window position, or ambient light levels. IC Role / Device Role / Timing Role: Shunt regulator providing stable 4.3 V reference to sensor signal chain and MCU analog peripherals. Use Value: Maintains ADC accuracy across −40 °C to +125 °C ambient due to AEC-Q101 thermal stability and low rdif. |
Use Scenario: Precision biasing of op-amp input stages in 4–20 mA transmitter circuits for pressure/temperature transducers. IC Role / Device Role / Timing Role: Zener-based reference source for current loop calibration and zero-point adjustment. Use Value: Tight 4.3 V tolerance (±2.9%) and ≤5 μA leakage ensure <0.1% full-scale error in 16-bit industrial DAC outputs. |
| USB-C Power Delivery Monitoring | Consumer Audio DC-DC Feedback Network |
Use Scenario: Overvoltage clamp protecting USB-C CC line interface ICs during hot-plug events or adapter fault conditions. IC Role / Device Role / Timing Role: Fast-acting shunt protector clamping transient spikes above 4.43 V before damage occurs. Use Value: 250 mA peak forward current rating and 300 μs pulse capability absorb short-duration surges without degradation. |
Use Scenario: Reference element in feedback divider of buck converter powering headphone amplifier ICs in portable speakers. IC Role / Device Role / Timing Role: Sets output voltage via resistive divider; stabilizes regulation against load and temperature drift. Use Value: 40 Ω rdif limits output voltage deviation to <±15 mV under 100 mA load step, preserving audio SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V3,115 | Same SOD123F package, but higher rdif (≤90 Ω) and wider VZ tolerance (±5%); no AEC-Q101 qualification | Limited to commercial-grade consumer products; unsuitable for automotive or industrial environments requiring extended temperature operation | Select only if cost sensitivity outweighs thermal stability and automotive compliance requirements |
| MMSZ4V3ET1G | SOD-123 package (identical outline), VZ = 4.3 V ±5%, rdif ≤90 Ω, Ptot = 350 mW, AEC-Q101 qualified | Lower power rating restricts use in >175 mA continuous regulation; suitable for low-current references only | Prefer when board space matches but system-level power dissipation remains below 350 mW |
Compared with BZX384-B4V3,115 and MMSZ4V3ET1G, NZH4V3B,115 offers superior regulation precision (±2.9% vs. ±5%), lower impedance (40 Ω vs. ≥90 Ω), and higher continuous power handling (500 mW vs. 350 mW), making it optimal for automotive and industrial applications demanding tight voltage control under variable load and temperature.
Availability
NZH4V3B,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C protection circuits, and consumer audio power management requiring stable component supply with AEC-Q101 assurance and SOD123F footprint compatibility.
Supply support for NZH4V3B,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade robustness.
The NZH series targets automotive and industrial voltage regulation needs, emphasizing AEC-Q101 qualification, tight Zener tolerance, and thermally efficient SOD123F packaging for space-constrained, high-reliability applications.
FAQ
What is the maximum continuous reverse power dissipation for NZH4V3B,115 on a standard FR4 PCB?
The maximum continuous total power dissipation (Ptot) is 500 mW at ambient temperature ≤25 °C on an FR4 PCB with single-sided copper and 1 cm² cathode pad. Above 25 °C, derating is linear at 4.0 mW/K based on Rth(j-a) = 250 K/W.
Does NZH4V3B,115 support pulse operation beyond its DC ratings?
Yes - it supports forward current pulses up to 250 mA with duration ≤300 μs and duty cycle ≤0.02, and reverse surge capability consistent with its 1 W transient power limit on ceramic substrate (Al2O3).
How is cathode identification implemented on the SOD123F package?
The cathode (pin 1) is identified by a visible marking bar printed on the top surface of the device body, aligned with the cathode end of the SOD123F outline. This matches the graphic symbol and pinning diagram in the official Nexperia datasheet Rev. 2 (May 2024).
Is NZH4V3B,115 suitable for use in 12 V automotive battery monitoring circuits?
Yes - its 4.3 V Zener voltage is commonly used in resistor-divider networks to scale 12 V battery signals down to MCU-compatible levels. Its AEC-Q101 qualification, −55 °C to +150 °C operating range, and low temperature coefficient ensure accuracy across automotive thermal profiles.
NZH4V3B,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
NZH4V3B,115 FAQ
1.How can I place an order for NZH4V3B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZH4V3B,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 NZH4V3B,115 reliable?
The price and inventory of NZH4V3B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZH4V3B,115 is usually 5 days.
3.What payment methods are accepted for NZH4V3B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZH4V3B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZH4V3B,115?
NZH4V3B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZH4V3B,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 NZH4V3B,115?
For technical support, including NZH4V3B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZH4V3B,115 requirements.
6.How does Aetrix verify that NZH4V3B,115 is sourced from the original manufacturer or authorized distributors?
All NZH4V3B,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 NZH4V3B,115 meets industry standards.
7.What is the process for return or replacement of NZH4V3B,115?
All NZH4V3B,115 units undergo pre-shipment inspection (PSI). If there is an issue with NZH4V3B,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 NZH4V3B,115 part is unused and in its original packaging.
Return procedure for NZH4V3B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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