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Nexperia USA Inc. BZX84J-C5V1/DG/B3X
- Part No.:
- BZX84J-C5V1/DG/B3X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C5V1/DG/B3X.pdf
- Description:
- DIODE ZENER 5.1V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:5,358
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Product details
Overview
BZX84J-C5V1/DG/B3X from Nexperia is a 5.1 V ±5 % tolerance Zener voltage regulator diode in SOD323F (SC-90) package, rated for 550 mW total power dissipation and 12 A non-repetitive peak reverse current at 100 µs pulse width, used for precision low-power voltage reference and overvoltage clamping in automotive sensor interfaces.
For engineers reviewing the BZX84J-C5V1/DG/B3X datasheet, BZX84J-C5V1/DG/B3X pinout, BZX84J-C5V1/DG/B3X application, or BZX84J-C5V1/DG/B3X equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤480 Ω at IZ = 5 mA), AEC-Q101 qualification, thermal resistance (230 K/W junction-to-ambient), and SC-90 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 5.1 V regulation across load and line variations, with temperature coefficient of −2.7 to +1.2 mV/K at IZ = 5 mA ensuring predictable drift in automotive ambient ranges (−55 °C to +150 °C). Its low 480 Ω differential resistance minimizes output voltage variation under dynamic current changes.
Designed for surface-mount reliability, it features AEC-Q101 qualification, 150 °C maximum junction temperature, and pulsed surge capability up to 40 W (≥7.5 V types) or 100 W (≤6.8 V types), making it suitable for transient suppression in 12 V vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.80 V to 5.40 V at IZ = 5 mA - defines regulation band for precision biasing in analog front-ends |
| Tolerance | ±5 % - enables cost-effective selection for non-critical voltage references without trimming |
| Differential Resistance (rdiff) | ≤480 Ω at IZ = 5 mA - limits output voltage shift to ≤2.4 V per 5 mA load change |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - supports continuous operation in thermally constrained SMT layouts |
| Non-repetitive Peak Reverse Current (IZSM) | 12 A at tp = 100 µs - clamps ESD transients per IEC 61000-4-2 Level 4 (±15 kV air) |
| Junction Temperature (Tj) | −55 °C to +150 °C - ensures functionality across automotive under-hood environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
The BZX84J-C5V1/DG/B3X is housed in a SOD323F (SC-90) plastic surface-mount package measuring 2.7 mm × 1.6 mm × 0.95 mm, with gull-wing leads optimized for reflow soldering on FR4 PCBs using the footprint defined in Figure 12 of the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar on package identifies this terminal |
| 2 (A) | Anode | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 480 Ω max at 5 mA - improves regulation stability under varying load currents in feedback networks |
| AEC-Q101 qualification | Validated for automotive use - eliminates need for additional qualification testing in Tier-1 ECUs |
| Small SOD323F package | 2.7 mm × 1.6 mm footprint - enables placement near IC power pins for localized voltage clamping |
| Wide operating temperature range | −55 °C to +150 °C - supports deployment in engine control modules and transmission sensors |
| Pulsed surge capability | 40 W non-repetitive peak power at 100 µs - absorbs ISO 7637-2 pulse 1/2/5a transients in 12 V systems |
Applications
| Automotive Sensor Biasing | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Providing stable 5.1 V reference for analog outputs of pressure and temperature sensors in engine management systems. IC Role / Device Role / Timing Role: Zener voltage reference element in sensor signal conditioning circuitry. Use Value: ±5 % tolerance and −2.7 to +1.2 mV/K tempco ensure <±30 mV drift over −40 °C to +125 °C, meeting ASIL-B functional safety margin. |
Use Scenario: Clamping VBUS line against 12 V battery backfeed during hot-swap events in automotive infotainment USB hubs. IC Role / Device Role / Timing Role: Reverse-biased transient voltage suppressor on 5 V supply rail. Use Value: 12 A IZSM rating handles 100 µs surges per ISO 16750-2, preventing damage to USB PHY ICs without adding series impedance. |
| Industrial PLC Input Protection | Low-Power MCU Reset Circuit |
|
Use Scenario: Protecting 24 V digital input channels from field-wiring induced transients in factory automation controllers. IC Role / Device Role / Timing Role: Shunt regulator limiting input voltage to safe level for optocoupler LED drive. Use Value: 550 mW Ptot allows sustained clamping during 1 s overvoltage events per IEC 61000-4-4, avoiding thermal runaway. |
Use Scenario: Generating precise reset threshold for 3.3 V microcontrollers in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Zener-based voltage detector feeding comparator input for brown-out detection. Use Value: 480 Ω rdiff ensures <10 mV error in trip point across 10 µA–100 µA sense current range, improving reset accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V1 | Same 5.1 V nominal, ±5 % tolerance, but not AEC-Q101 qualified; Ptot = 350 mW | Limited to commercial-grade consumer or industrial equipment without automotive qualification requirements | Select when AEC-Q101 is unnecessary and board space allows larger SOT23 package |
| MMSZ5231B | 5.1 V ±5 %, SOD-123 package, Ptot = 500 mW, rdiff = 600 Ω, no AEC-Q101 | Suitable for general-purpose regulation where thermal resistance (300 K/W) and surge rating (8 A) are acceptable trade-offs | Choose for legacy designs using SOD-123 footprints or where Nexperia supply chain constraints exist |
Compared with BZX84J-C5V1/DG/B3X, the BZX84-C5V1 offers lower power handling and no automotive qualification, while MMSZ5231B provides similar voltage specs but higher differential resistance and inferior thermal performance-making the BZX84J-C5V1/DG/B3X optimal for AEC-Q101-compliant, space-constrained, and thermally demanding applications.
Availability
BZX84J-C5V1/DG/B3X is available at Aetrix Electronics and suitable for automotive sensor biasing, USB port overvoltage protection, and industrial PLC input protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX84J-C5V1/DG/B3X 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 logic, discrete, and MOSFET 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 suppression in harsh automotive environments.
FAQ
What is the maximum continuous reverse current for BZX84J-C5V1/DG/B3X at 25 °C?
The device does not specify a maximum continuous reverse current; instead, its DC operation is governed by total power dissipation limit of 550 mW. At 5.1 V Zener voltage, this corresponds to a maximum steady-state reverse current of approximately 108 mA (550 mW ÷ 5.1 V), assuming no ambient temperature derating.
Can BZX84J-C5V1/DG/B3X be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients and manufacturing tolerances that cause current imbalance when paralleled. Uneven current sharing risks thermal runaway in one device, violating the 550 mW Ptot rating and potentially causing failure.
Is the SOD323F package compatible with standard reflow profiles for lead-free soldering?
Yes-the datasheet explicitly states reflow soldering is the only recommended method, and the device complies with JEDEC J-STD-020 moisture sensitivity level 1, supporting peak temperatures up to 260 °C for 30 seconds in lead-free processes without delamination or parametric shift.
How does the −2.7 to +1.2 mV/K temperature coefficient affect regulation accuracy over temperature?
Over a 100 °C range (e.g., −40 °C to +60 °C), the worst-case voltage drift is ±120 mV (1.2 mV/K × 100 K), resulting in a total regulation band of 4.98 V to 5.22 V-well within typical 5 V system tolerance budgets for non-precision analog functions.
BZX84J-C5V1/DG/B3X 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):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
BZX84J-C5V1/DG/B3X FAQ
1.How can I place an order for BZX84J-C5V1/DG/B3X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C5V1/DG/B3X 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-C5V1/DG/B3X reliable?
The price and inventory of BZX84J-C5V1/DG/B3X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C5V1/DG/B3X is usually 5 days.
3.What payment methods are accepted for BZX84J-C5V1/DG/B3X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C5V1/DG/B3X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C5V1/DG/B3X?
BZX84J-C5V1/DG/B3X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C5V1/DG/B3X 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-C5V1/DG/B3X?
For technical support, including BZX84J-C5V1/DG/B3X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C5V1/DG/B3X requirements.
6.How does Aetrix verify that BZX84J-C5V1/DG/B3X is sourced from the original manufacturer or authorized distributors?
All BZX84J-C5V1/DG/B3X 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-C5V1/DG/B3X meets industry standards.
7.What is the process for return or replacement of BZX84J-C5V1/DG/B3X?
All BZX84J-C5V1/DG/B3X units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C5V1/DG/B3X, 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-C5V1/DG/B3X part is unused and in its original packaging.
Return procedure for BZX84J-C5V1/DG/B3X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C5V1/DG/B3X Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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