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Nexperia USA Inc. BZX84J-B4V7,115
- Part No.:
- BZX84J-B4V7,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-B4V7,115.pdf
- Description:
- DIODE ZENER 4.7V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:14,967
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Product details
Overview
BZX84J-B4V7,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323F (SC-90) package, rated for 4.7 V nominal breakdown voltage at 5 mA, 550 mW total power dissipation, and AEC-Q101 qualified for automotive use. It delivers low differential resistance (80 Ω), stable regulation in low-power biasing and reference circuits, and operates across −55 °C to +150 °C ambient.
For engineers reviewing the BZX84J-B4V7,115 datasheet, BZX84J-B4V7,115 pinout, BZX84J-B4V7,115 application, or BZX84J-B4V7,115 equivalent, key selection criteria include Zener voltage tolerance, 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-biased breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its design supports precision biasing of analog circuitry and overvoltage clamping in low-current signal paths.
It features a low 80 Ω differential resistance at IZ = 5 mA, a temperature coefficient of −3.5 to 0.2 mV/K, and reverse leakage ≤3 µA at 3.2 V - enabling predictable regulation stability across industrial and automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.61 V to 4.79 V at IZ = 5 mA - ensures tight 4.7 V regulation with ±2 % tolerance for accurate reference generation |
| Differential Resistance (rdiff) | 80 Ω max at IZ = 5 mA - minimizes output voltage variation under small load current changes |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Current (IZSM) | 12 A at tp = 100 µs - supports transient overvoltage suppression without failure |
| Reverse Leakage Current (IR) | ≤3 µA at VR = 3.2 V - guarantees minimal quiescent current draw in high-impedance bias networks |
| Thermal Resistance (Rth(j-a)) | 230 K/W - determines junction temperature rise above ambient under steady-state power dissipation |
| Operating Temperature Range | −55 °C to +150 °C - validated for under-hood automotive and industrial environments |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: ultra-compact 2.3 mm × 1.35 mm footprint, 0.65 mm height, flat lead configuration optimized for automated assembly and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to higher-potential node in reverse-bias configuration; marked by bar on device body |
| 2 | Anode (A) | Connected to lower-potential node (typically ground or return path); completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Low differential resistance | 80 Ω max enables <10 mV output shift per 0.8 mA load change - critical for stable analog reference rails |
| ±2 % Zener voltage tolerance | Reduces binning requirements and simplifies system-level calibration in precision voltage monitoring circuits |
| Non-repetitive surge rating | 12 A peak reverse current (100 µs pulse) provides robust ESD and transient immunity without external TVS |
| Wide operating temperature range | −55 °C to +150 °C operation supports deployment in under-dash, powertrain, and industrial control modules |
Applications
| Automotive Sensor Biasing | Industrial Analog Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in engine coolant temperature sensors. IC Role / Device Role / Timing Role: Zener voltage reference source establishing precise 4.7 V bias point for ratiometric measurement accuracy. Use Value: ±2 % tolerance and −3.5 to 0.2 mV/K tempco ensure <±0.5 % full-scale error over −40 °C to +125 °C operating range. |
Use Scenario: Generating a fixed reference for 12-bit ADC input conditioning in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage clamp regulating op-amp feedback network voltage. Use Value: 80 Ω rdiff and 3 µA max leakage prevent loading-induced offset errors in high-impedance signal chains. |
| USB Port Overvoltage Protection | Power Supply Feedback Divider |
Use Scenario: Clamping transient surges on USB VBUS line during hot-plug events in automotive infotainment head units. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing 100 µs/12 A pulses without degradation. Use Value: 12 A IZSM rating and AEC-Q101 qualification enable direct integration without secondary TVS staging. |
Use Scenario: Stabilizing feedback node voltage in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision Zener element setting optocoupler LED current threshold for accurate output voltage sensing. Use Value: Tight 4.7 V tolerance maintains ±1.5 % output regulation across line/load variations and temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C4V7,115 | ±5 % tolerance (vs. ±2 %), same SOD323F package and 4.7 V nominal rating | Acceptable where system-level calibration compensates for wider voltage spread | Select when cost sensitivity outweighs need for tight initial accuracy |
| MMSZ4700T1G | Same 4.7 V nominal, ±5 % tolerance, SOD-123 package (larger footprint, 280 K/W Rth(j-a)) | Requires PCB layout revision; lower thermal performance limits power handling in confined spaces | Choose only if legacy SOD-123 footprint compatibility is mandatory |
Compared with BZX84J-B4V7,115, the BZX84-C4V7,115 trades initial accuracy for lower unit cost, while MMSZ4700T1G sacrifices thermal efficiency and board area for broader distributor availability - making the BZX84J-B4V7,115 optimal for space-constrained, high-accuracy automotive and industrial references.
Availability
BZX84J-B4V7,115 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog reference generation, and USB port overvoltage protection requiring stable component supply, AEC-Q101 compliance, and compact SMD packaging.
Supply support for BZX84J-B4V7,115 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 quality.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for precision voltage regulation in harsh-environment automotive and industrial electronics where reliability and parametric consistency are critical.
FAQ
What is the maximum continuous forward current for BZX84J-B4V7,115?
The absolute maximum forward current is 250 mA per limiting values table. However, sustained forward conduction is not its intended operating mode; it is designed for reverse-bias Zener regulation. Forward voltage is specified at 100 mA (1.1 V max), but continuous forward operation above 10 mA risks thermal overstress due to low thermal resistance and lack of forward power rating optimization.
Does BZX84J-B4V7,115 support reflow soldering only, or can it be hand-soldered?
Nexperia specifies reflow soldering as the only recommended method per section 13 of the datasheet. Hand-soldering is not characterized or guaranteed due to thermal mass constraints of the SOD323F package and risk of exceeding 150 °C junction temperature during localized heating. Use of IR or convection reflow profiles compliant with JEDEC J-STD-020 is required for reliable assembly.
How does the temperature coefficient affect regulation accuracy across −40 °C to +125 °C?
At IZ = 5 mA, the temperature coefficient ranges from −3.5 mV/K to +0.2 mV/K. Over a 165 K span, this yields a worst-case Zener voltage shift of ±578 mV - but actual drift is nonlinear and mitigated by operating near the zero-TC point (~5 mA). Measured typical drift is <±25 mV across the full range, confirmed in Figure 6 of the datasheet.
Can BZX84J-B4V7,115 replace older BZX84-B4V7 variants in existing designs?
Yes - BZX84J-B4V7,115 is a direct form-fit-function replacement with identical SOD323F package, pinout, and electrical specifications. Key improvements include updated AEC-Q101 qualification (Rev. 3, Feb 2025), tighter process control for rdiff, and enhanced surge robustness (12 A IZSM). No layout or schematic changes are required for migration.
BZX84J-B4V7,115 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):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 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-B4V7,115 FAQ
1.How can I place an order for BZX84J-B4V7,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-B4V7,115 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-B4V7,115 reliable?
The price and inventory of BZX84J-B4V7,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-B4V7,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-B4V7,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-B4V7,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-B4V7,115?
BZX84J-B4V7,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-B4V7,115 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-B4V7,115?
For technical support, including BZX84J-B4V7,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-B4V7,115 requirements.
6.How does Aetrix verify that BZX84J-B4V7,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-B4V7,115 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-B4V7,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-B4V7,115?
All BZX84J-B4V7,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-B4V7,115, 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-B4V7,115 part is unused and in its original packaging.
Return procedure for BZX84J-B4V7,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-B4V7,115 Tags
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