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Nexperia USA Inc. BZX84J-C4V3,115
- Part No.:
- BZX84J-C4V3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C4V3,115.pdf
- Description:
- DIODE ZENER 4.3V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
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Product details
Overview
BZX84J-C4V3,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323F (SC-90) package, rated for 4.3 V nominal Zener voltage at 5 mA, 550 mW total power dissipation, and AEC-Q101 qualified for automotive use. It provides stable reference voltage in low-power biasing, overvoltage clamping, and supply rail regulation circuits.
For engineers reviewing the BZX84J-C4V3,115 datasheet, BZX84J-C4V3,115 pinout, BZX84J-C4V3,115 application, or BZX84J-C4V3,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤600 Ω at IZ = 5 mA), non-repetitive surge capability (12 A peak reverse current), thermal resistance (230 K/W junction-to-ambient), and automotive qualification status.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its terminals under controlled current conditions. Its 4.3 V nominal Zener voltage is specified at 5 mA test current with ±5 % tolerance, and exhibits low differential resistance (≤600 Ω) ensuring minimal voltage variation with load changes.
The device features AEC-Q101 qualification, confirming suitability for automotive environments, and uses a thermally optimized SOD323F package with 230 K/W junction-to-ambient thermal resistance when mounted on FR4 PCB. Its non-repetitive peak reverse current is 12 A (tp = 100 μs, square wave, Tj = 25 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.00 V to 4.60 V at IZ = 5 mA - defines stable regulation range for precision biasing |
| Tolerance | ±5 % - determines absolute voltage accuracy in reference circuits |
| Differential Resistance (rdiff) | ≤600 Ω at IZ = 5 mA - limits output voltage drift under varying load current |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Current (IZSM) | 12 A (tp = 100 μs, square wave) - enables transient overvoltage suppression without failure |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - confirms reliability for automotive electronics per stress-test qualification standard |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: 2-terminal, ultra-small outline (2.7 mm × 1.6 mm × 0.95 mm), flat lead, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | ≤600 Ω ensures <±20 mV output shift per 10 mA load change at 4.3 V regulation |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Small SOD323F footprint | 2.7 mm × 1.6 mm area enables high-density PCB layouts in space-constrained modules |
| Wide Zener voltage range | 2.4 V–75 V coverage (E24 series) supports standardized reference selection across multiple designs |
| Two tolerance options | ±2 % (B-series) and ±5 % (C-series) allow cost/performance trade-off in production BOMs |
Applications
| Automotive Cabin Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 4.3 V reference for microcontroller ADC input scaling in HVAC control units. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precise analog input full-scale threshold. Use Value: Enables ±0.5 % measurement accuracy despite 12 V battery rail fluctuations and engine cranking transients. |
Use Scenario: Clamping amplifier output to prevent overvoltage damage during ESD events in pressure sensor front-end circuits. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting signal swing to safe levels for downstream op-amp inputs. Use Value: Absorbs 12 A surge (100 μs) without degradation, preserving signal integrity and IC lifetime. |
| Consumer USB-C Power Negotiation | Medical Wearable Battery Monitoring |
Use Scenario: Biasing voltage divider for CC line detection in USB-C port controllers requiring accurate 4.3 V threshold. IC Role / Device Role / Timing Role: Precision voltage reference defining USB PD communication logic level thresholds. Use Value: ±5 % tolerance ensures reliable detection across temperature (−40 °C to +85 °C) and supply variance. |
Use Scenario: Generating stable reference for lithium-ion cell voltage monitoring in compact wearable health monitors. IC Role / Device Role / Timing Role: Low-power Zener regulator supplying reference to 12-bit ADC in ultra-low-quiescent-current design. Use Value: 550 mW Ptot and 230 K/W Rth(j-a) enable continuous operation at <100 μA quiescent current with no thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C4V3,115 | Same Zener voltage and tolerance, but not AEC-Q101 qualified; higher rdiff (≤700 Ω) | Limited to commercial-grade consumer or industrial equipment without automotive requirements | Select when AEC-Q101 is unnecessary and cost sensitivity outweighs automotive reliability needs |
| MMSZ4V3T1G | 4.3 V ±5 %, SOD-123 package (larger footprint), 500 mW Ptot, 350 Ω rdiff, AEC-Q101 qualified | Higher thermal mass improves surge robustness but occupies 3× PCB area vs. SOD323F | Choose when higher surge margin is critical and board space permits larger package |
Compared with BZX84J-C4V3,115, the BZX84-C4V3,115 lacks automotive qualification and has higher dynamic impedance, while MMSZ4V3T1G trades miniaturization for improved thermal surge handling-making the J-series optimal for space-constrained automotive modules needing certified reliability.
Availability
BZX84J-C4V3,115 is available at Aetrix Electronics and suitable for automotive cabin control, industrial sensor interfaces, USB-C power negotiation, and medical wearable battery monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX84J-C4V3,115 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, serving automotive, industrial, and consumer markets with AEC-Q101-qualified components.
The BZX84J series belongs to Nexperia's automotive-grade Zener diode product line, engineered specifically for stable voltage reference and transient protection in harsh-environment electronic control units.
FAQ
What is the maximum continuous forward current rating for BZX84J-C4V3,115?
The absolute maximum forward current (IF) is 250 mA per limiting values table. However, forward conduction is not its intended operating mode; it is designed for reverse-bias Zener regulation. Continuous forward operation above 100 mA risks thermal overstress due to VF ≈ 1.1 V and limited thermal dissipation in SOD323F.
Does BZX84J-C4V3,115 require external series resistance in Zener regulation circuits?
Yes - a current-limiting resistor is mandatory to set the Zener test current (typically 5 mA) and prevent thermal runaway. For 12 V input and 4.3 V output, a 1.5 kΩ resistor delivers ~5.1 mA, keeping power dissipation within the 550 mW limit and maintaining regulation stability.
How does the ±5 % tolerance affect circuit performance in precision reference applications?
At 4.3 V nominal, ±5 % tolerance means actual VZ falls between 4.00 V and 4.60 V. In ADC reference applications, this introduces up to ±3.5 % full-scale error unless calibrated out. For tighter accuracy, consider the ±2 % BZX84J-B4V3 variant or post-fabrication trimming.
Can BZX84J-C4V3,115 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficient below ~5 V, causing current hogging and thermal instability when paralleled. Even matched units will not share current evenly; use a single higher-power Zener or active regulation instead.
BZX84J-C4V3,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
BZX84J-C4V3,115 FAQ
1.How can I place an order for BZX84J-C4V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C4V3,115 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 BZX84J-C4V3,115 reliable?
The price and inventory of BZX84J-C4V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C4V3,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C4V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C4V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C4V3,115?
BZX84J-C4V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C4V3,115 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 BZX84J-C4V3,115?
For technical support, including BZX84J-C4V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C4V3,115 requirements.
6.How does Aetrix verify that BZX84J-C4V3,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C4V3,115 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 BZX84J-C4V3,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C4V3,115?
All BZX84J-C4V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C4V3,115, 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 BZX84J-C4V3,115 part is unused and in its original packaging.
Return procedure for BZX84J-C4V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C4V3,115 Tags
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