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Nexperia USA Inc. NZH3V9B,115
- Part No.:
- NZH3V9B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
NZH3V9B,115.pdf
- Description:
- DIODE ZENER 3.9V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:19,336
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Product details
Overview
NZH3V9B,115 from Nexperia is a single Zener diode in SOD123F package, rated for 3.71–4.10 V nominal Zener voltage at 20 mA, with ≤500 mW total power dissipation (FR4 PCB), 50 Ω max differential resistance, and AEC-Q101 qualification-used for precision voltage regulation in automotive body control modules.
For engineers reviewing the NZH3V9B,115 datasheet, NZH3V9B,115 pinout, NZH3V9B,115 application, or NZH3V9B,115 equivalent, key selection criteria include Zener voltage tolerance (±5.2%), thermal resistance (250 K/W on FR4), reverse leakage (<5 μA at 1 V), and SOD123F footprint compatibility with automated SMT assembly.
Technical Context
This Zener diode operates as a two-terminal shunt voltage reference, maintaining stable output voltage across variable load currents via controlled reverse breakdown. Its low differential resistance (50 Ω max) ensures minimal voltage drift under dynamic current changes.
Designed for automotive-grade reliability, it meets AEC-Q101 stress test requirements including temperature cycling, high-temperature operating life, and ESD robustness. Thermal performance is defined for both FR4 (250 K/W j-a) and ceramic (125 K/W j-sp) mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.71–4.10 V at IZ = 20 mA; tight ±5.2% tolerance enables accurate 3.9 V rail regulation |
| Differential Resistance (rdif) | ≤50 Ω at IZ = 20 mA; ensures <0.1 V output shift per 5 mA load change |
| Reverse Current (IR) | ≤5 μA at VR = 1 V; guarantees low standby power loss in always-on circuits |
| Total Power Dissipation (Ptot) | 500 mW at Tamb ≤ 25 °C on FR4 PCB; defines maximum continuous DC power handling |
| Thermal Resistance (Rth(j-a)) | 250 K/W on FR4; sets junction-to-ambient rise of 125 °C at full 500 mW load |
| Junction Temperature (Tj) | −55 to +150 °C; supports operation in engine bay and under-hood environments |
Pinout & Package
SOD123F is a surface-mount plastic package measuring 3.6 × 1.6 mm (L × W), with gull-wing leads, 0.7 mm lead pitch, and cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential reference; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including BCM, lighting control, and sensor interfaces |
| Low differential resistance | 50 Ω max ensures stable 3.9 V output despite ±10 mA load variation |
| SOD123F footprint | Compatible with standard 0805-class reflow profiles and pick-and-place equipment |
| Wide Zener voltage range | Part of 25-type series spanning 3.0–30 V, enabling design reuse across multiple rails |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 3.9 V reference for LIN transceiver biasing and microcontroller I/O protection in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias point for analog front-end circuitry. Use Value: Maintains <±2% output accuracy over −40 to +125 °C ambient, meeting ISO 16750-4 requirements. |
Use Scenario: Clamping and level-shifting 4–20 mA loop transmitter outputs in factory automation sensors. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as precision clamp to protect ADC input stages. Use Value: Limits transient overvoltage to ≤4.1 V while drawing <5 μA leakage at 1 V, minimizing signal error. |
| USB-C Power Delivery Monitoring | Smart Meter Voltage Reference |
Use Scenario: Providing stable 3.9 V reference for voltage monitoring ICs in USB-C PD sink controllers. IC Role / Device Role / Timing Role: Passive voltage reference enabling accurate VBUS sensing across 5–20 V input range. Use Value: Enables ±1% measurement accuracy over 10-year lifetime due to low parametric drift and AEC-Q101 reliability. |
Use Scenario: Generating local 3.9 V reference for metrology ADCs in Class 0.2 smart electricity meters. IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying clean reference to sigma-delta converter. Use Value: Delivers <10 ppm/°C TC and <0.5 mV long-term drift, supporting ANSI C12.20 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V9,115 | Zener voltage 3.76–4.04 V (±4%); higher 70 Ω rdif; SOD323 package (smaller, 1.7 × 1.3 mm) | Lower power rating (300 mW); unsuitable for >150 mA surge conditions in automotive load dumps | Select when board space is constrained and thermal margin exceeds 30 °C |
| MMSZ4685T1G | Zener voltage 3.71–4.10 V (±5%); identical rdif spec; SOD123 package (no flat leads, 0.9 mm thickness vs. 0.25 mm) | Not AEC-Q101 qualified; lacks automotive reliability validation and high-temp storage rating | Acceptable for industrial non-automotive use where cost is prioritized over qualification |
Compared with BZX384-B3V9,115 and MMSZ4685T1G, NZH3V9B,115 delivers superior thermal performance on FR4 (250 K/W vs. ≥300 K/W), guaranteed automotive qualification, and tighter production lot consistency for safety-critical voltage references.
Availability
NZH3V9B,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power delivery systems, and smart metering applications requiring stable component supply and AEC-Q101 traceability.
Supply support for NZH3V9B,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 logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
The NZH series targets automotive and industrial Zener regulation needs, emphasizing AEC-Q101 qualification, low thermal resistance, and tight voltage tolerance in compact SMD packages.
FAQ
What is the maximum continuous forward current for NZH3V9B,115?
The absolute maximum forward current is 250 mA per limiting values table. However, sustained forward conduction is not intended-this device operates in reverse breakdown for regulation. Forward voltage is specified at 10 mA (≤0.9 V), and exceeding 100 mA forward risks thermal runaway due to lack of forward power rating.
Can NZH3V9B,115 be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficient and mismatched VZ tolerances, causing current hogging and thermal instability when paralleled. For >500 mW regulation, use a single higher-power Zener or active shunt regulator instead.
Is the SOD123F package compatible with IPC-7351B standard footprints?
Yes-the SOD123F outline matches IPC-7351B "SOD123F" land pattern (pad length 1.2 mm, width 0.6 mm, spacing 0.7 mm). The recommended reflow footprint in Figure 5 aligns with IPC Class 2 solder joint geometry for 0.4 mm copper thickness.
Does NZH3V9B,115 require derating above 25 °C ambient?
Yes-power dissipation must be linearly derated above 25 °C using Rth(j-a) = 250 K/W. At 85 °C ambient, maximum Ptot drops to 400 mW; at 125 °C, it falls to 300 mW. Junction temperature must remain ≤150 °C under all operating conditions.
NZH3V9B,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):
- 3.9 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 50 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
NZH3V9B,115 FAQ
1.How can I place an order for NZH3V9B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZH3V9B,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 NZH3V9B,115 reliable?
The price and inventory of NZH3V9B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZH3V9B,115 is usually 5 days.
3.What payment methods are accepted for NZH3V9B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZH3V9B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZH3V9B,115?
NZH3V9B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZH3V9B,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 NZH3V9B,115?
For technical support, including NZH3V9B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZH3V9B,115 requirements.
6.How does Aetrix verify that NZH3V9B,115 is sourced from the original manufacturer or authorized distributors?
All NZH3V9B,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 NZH3V9B,115 meets industry standards.
7.What is the process for return or replacement of NZH3V9B,115?
All NZH3V9B,115 units undergo pre-shipment inspection (PSI). If there is an issue with NZH3V9B,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 NZH3V9B,115 part is unused and in its original packaging.
Return procedure for NZH3V9B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZH3V9B,115 Tags
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