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Nexperia USA Inc. BZX84J-B47,115
- Part No.:
- BZX84J-B47,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-B47,115.pdf
- Description:
- DIODE ZENER 47V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:10,752
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Product details
Overview
BZX84J-B47,115 from Nexperia is a 47 V ±2 % tolerance Zener diode in SOD323F (SC-90) package, rated for 550 mW total power dissipation and 40 W non-repetitive peak reverse power at tp = 100 μs, designed for precision voltage regulation and overvoltage protection in automotive and industrial power rails.
For engineers reviewing the BZX84J-B47,115 datasheet, BZX84J-B47,115 pinout, BZX84J-B47,115 application, or BZX84J-B47,115 equivalent, this device supports stable reference generation, ESD clamp design, and low-power supply rail stabilization where AEC-Q101 qualification and tight voltage tolerance are required.
Technical Context
This Zener diode operates in reverse breakdown with a nominal Zener voltage of 47 V at IZ = 2 mA, exhibiting a differential resistance of 90 Ω and temperature coefficient of +42.0 mV/K at that current. Its low capacitance (55 pF at VR = 0 V, f = 1 MHz) enables use in moderate-speed transient suppression.
The device features AEC-Q101 qualification, junction-to-ambient thermal resistance of 230 K/W on FR4 PCB, and maximum reverse current IR ≤ 0.05 µA at VR = 37.6 V - confirming high blocking integrity below nominal Zener threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 46.1 V to 47.9 V at IZ = 2 mA - defines precise clamping threshold for 47 V nominal rail protection |
| Tolerance | ±2 % - ensures tight regulation window critical for automotive sensor supply references |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - sets continuous thermal limit on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 μs - supports single-event surge suppression up to 0.9 A peak current |
| Differential Resistance (rdiff) | 90 Ω at IZ = 2 mA - determines regulation stiffness and output impedance in shunt configuration |
| Reverse Current (IR) | ≤ 0.05 µA at VR = 37.6 V - guarantees minimal leakage before breakdown onset |
| Capacitance (Cd) | 55 pF at VR = 0 V, f = 1 MHz - limits high-frequency signal coupling in bias networks |
Pinout & Package
Package: SOD323F (SC-90), ultra-small surface-mount plastic package with 2 leads, 1.8 mm × 1.35 mm footprint, 0.25 mm profile, optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control units and body electronics |
| Low differential resistance | 90 Ω at 2 mA enables stable voltage reference under varying load conditions |
| Wide voltage range coverage | Part of 74-type series spanning 2.4 V to 75 V - supports standardized BOM consolidation |
| Small SOD323F footprint | 1.8 mm × 1.35 mm area reduces PCB real estate vs. SOD123 or DO-35 packages |
| Tight ±2 % tolerance option | Reduces need for post-production trimming in precision analog supply designs |
Applications
| Automotive Sensor Reference | Industrial PLC Input Protection |
|---|---|
Use Scenario: Stabilizing 5 V or 12 V bias rails for analog sensors in engine control modules. IC Role / Device Role / Timing Role: Shunt voltage regulator providing fixed reference point for ADC front-end circuitry. Use Value: ±2 % tolerance and AEC-Q101 qualification ensure consistent sensor accuracy across temperature and lifetime. |
Use Scenario: Clamping transient voltages on 24 V digital input channels exposed to inductive switching noise. IC Role / Device Role / Timing Role: Overvoltage protector limiting input voltage to safe levels for optocoupler or microcontroller GPIO. Use Value: 40 W non-repetitive peak power rating absorbs 100 μs surges without degradation. |
| USB-C PD Adapter Feedback | Medical Instrument Power Monitoring |
Use Scenario: Providing secondary-side voltage reference in isolated flyback converters for USB-C power delivery adapters. IC Role / Device Role / Timing Role: Precision Zener in TL431-like feedback network setting output voltage via resistor divider. Use Value: Low 55 pF capacitance avoids phase shift in feedback loop, preserving stability margin. |
Use Scenario: Monitoring battery voltage thresholds in portable diagnostic devices with low-power microcontrollers. IC Role / Device Role / Timing Role: Low-leakage (≤0.05 µA) voltage detector enabling accurate state-of-charge estimation. Use Value: Ultra-low IR ensures minimal quiescent current drain during extended standby periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C47,115 | ±5 % tolerance, same SOD323F package, identical Ptot and PZSM ratings | Higher voltage spread acceptable in non-critical biasing; lower cost tier | Select when ±5 % regulation window suffices and cost sensitivity outweighs precision needs |
| MMSZ47ET1G | 47 V ±5 %, SOD-123 package (larger footprint), 500 mW Ptot, no AEC-Q101 certification | Not qualified for automotive; higher thermal resistance (300 K/W) limits power handling on compact PCBs | Use only in commercial-grade consumer or industrial equipment without automotive reliability requirements |
Compared with BZX84J-B47,115, the BZX84-C47,115 offers cost advantage at reduced voltage precision, while MMSZ47ET1G trades AEC-Q101 compliance and thermal performance for broader distributor availability - making the BZX84J-B47,115 optimal for automotive-qualified, space-constrained, precision-regulation use cases.
Availability
BZX84J-B47,115 is available at Aetrix Electronics and suitable for automotive sensor reference, industrial PLC input protection, and USB-C PD adapter feedback requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX84J-B47,115 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient protection in harsh automotive environments.
FAQ
What is the maximum continuous forward current for BZX84J-B47,115?
The absolute maximum forward current (IF) 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 (VF ≤ 1.1 V), but operation above 10 mA forward should be avoided in normal use.
Does BZX84J-B47,115 require a series current-limiting resistor in shunt regulator applications?
Yes - a series resistor is mandatory to limit Zener current within safe operating area. For example, at 50 V input and 47 V output, a 1 kΩ resistor limits IZ to ~3 mA, staying within the 2 mA test condition used for VZ specification and ensuring thermal safety at 550 mW Ptot.
How does the temperature coefficient affect regulation accuracy over -40 °C to +125 °C?
At IZ = 2 mA, SZ = +42.0 mV/K - meaning VZ increases by ~42 mV per °C rise. Over a 165 °C range, this yields ~6.9 V drift. System-level compensation (e.g., using complementary tempcos or digital calibration) is required for high-accuracy applications beyond ambient-stable environments.
Can BZX84J-B47,115 replace older BZX84-B47 variants in existing designs?
Yes - BZX84J-B47,115 maintains identical electrical specs, SOD323F package dimensions, and pinout versus legacy BZX84-B47. It adds AEC-Q101 qualification and updated thermal characterization (Rth(j-a) = 230 K/W), making it a drop-in upgrade for automotive and industrial revisions requiring enhanced reliability validation.
BZX84J-B47,115 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):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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-B47,115 FAQ
1.How can I place an order for BZX84J-B47,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-B47,115 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-B47,115 reliable?
The price and inventory of BZX84J-B47,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-B47,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-B47,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-B47,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-B47,115?
BZX84J-B47,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-B47,115 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-B47,115?
For technical support, including BZX84J-B47,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-B47,115 requirements.
6.How does Aetrix verify that BZX84J-B47,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-B47,115 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-B47,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-B47,115?
All BZX84J-B47,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-B47,115, 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-B47,115 part is unused and in its original packaging.
Return procedure for BZX84J-B47,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-B47,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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