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Nexperia USA Inc. BZX84J-C12,115
- Part No.:
- BZX84J-C12,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C12,115.pdf
- Description:
- DIODE ZENER 12V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:97,145
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Product details
Overview
BZX84J-C12,115 from Nexperia is a 12 V ±5 % Zener voltage regulator diode in SOD323F (SC-90) surface-mount package, rated for 550 mW total power dissipation and 40 W non-repetitive peak reverse power at 100 µs pulse width, used for precision voltage reference and overvoltage protection in automotive power rails.
For engineers reviewing the BZX84J-C12,115 datasheet, BZX84J-C12,115 pinout, BZX84J-C12,115 application, or BZX84J-C12,115 equivalent, this device supports AEC-Q101-compliant designs requiring stable 12 V regulation, low differential resistance (150 Ω at IZ = 5 mA), and thermal robustness up to 150 °C junction temperature.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 12 V (11.4–12.7 V range), specified at 5 mA test current and 25 °C junction temperature. Its temperature coefficient is +6.0 mV/K at 5 mA, indicating positive drift with rising temperature.
The device exhibits low differential resistance (150 Ω max at IZ = 5 mA) and reverse current ≤ 0.1 µA at 9.4 V, enabling tight regulation under light-load conditions. It is qualified per AEC-Q101 for automotive use and features a 230 K/W junction-to-ambient thermal resistance on FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V nominal, 11.4–12.7 V min/max at IZ = 5 mA - defines stable regulation point for 12 V rail clamping |
| Tolerance | ±5 % - allows predictable voltage margin in safety-critical automotive sensing circuits |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - sets continuous DC power limit on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - enables transient surge suppression for ESD/ISO 7637-2 pulses |
| Differential Resistance (rdiff) | 150 Ω max at IZ = 5 mA - determines regulation stiffness against load current variation |
| Junction Temperature (Tj) | 150 °C max - supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SOD323F (SC-90) plastic surface-mount package: 2-terminal, ultra-compact footprint (2.3 × 1.35 mm), flat lead, cathode marked by bar on top surface.
| 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 bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Low differential resistance | 150 Ω max ensures minimal output voltage shift across 1–10 mA load current changes |
| Wide operating temperature range | −55 °C to +150 °C ambient enables deployment in extreme under-hood locations |
| Precision voltage tolerance | ±5 % at 12 V provides deterministic clamping without post-production trimming |
| Small SMD package | SOD323F footprint saves board space in dense ADAS sensor modules and infotainment power supplies |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 12 V supply for microcontroller I/O protection and CAN transceiver biasing. IC Role / Device Role / Timing Role: Zener clamp limiting transient overvoltage on 12 V rail during load dump events. Use Value: Prevents latch-up in downstream logic ICs by holding rail voltage ≤13.5 V during ISO 7637-2 Pulse 5a surges. |
Use Scenario: Providing stable reference for 4–20 mA loop transmitter DAC output stage. IC Role / Device Role / Timing Role: Precision shunt reference establishing 12 V headroom for op-amp output swing. Use Value: Enables 0.5 % full-scale accuracy over −40 to +85 °C due to low rdiff and known +6.0 mV/K TC. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Power Monitoring |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Shunt regulator feeding optocoupler input to maintain ±3 % output regulation. Use Value: Delivers stable 12 V reference with <0.1 µA leakage at 9.4 V, minimizing standby current error. |
Use Scenario: Overvoltage detection on auxiliary 12 V supply powering analog front-end ADCs. IC Role / Device Role / Timing Role: Fail-safe clamp triggering shutdown circuit when rail exceeds 13.2 V. Use Value: Guarantees response within 100 ns due to low capacitance (105 pF) and fast Zener turn-on. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C12,115 | Same Zener voltage and package, but not AEC-Q101 qualified; 550 mW Ptot, 150 Ω rdiff | Restricted to commercial/industrial use; unsuitable for automotive production | Select only for cost-sensitive non-automotive designs where qualification is unnecessary |
| MMSZ5242B-7-F | 12 V ±5 %, SOD-123 package, 500 mW Ptot, 170 Ω rdiff, no AEC-Q101 | Larger footprint (3.7 × 1.6 mm vs. 2.3 × 1.35 mm); higher thermal resistance | Choose when legacy SOD-123 layout compatibility is required and space is not constrained |
Compared with BZX84J-C12,115, the BZX84-C12,115 lacks automotive qualification and long-term reliability validation, while MMSZ5242B-7-F trades compactness and thermal performance for broader distributor availability - making the J-series optimal for new AEC-Q101-compliant designs needing miniaturization.
Availability
BZX84J-C12,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical power monitoring systems requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot history.
Supply support for BZX84J-C12,115 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 robust voltage regulation and transient protection in harsh automotive and industrial environments.
FAQ
What is the maximum continuous forward current for BZX84J-C12,115?
The absolute maximum forward current 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 bias above 100 mA risks exceeding junction temperature limits even at room ambient.
Can BZX84J-C12,115 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, slight VZ mismatches cause current hogging. Parallel connection is not recommended; use a single higher-power Zener or active regulation instead.
How does the +6.0 mV/K temperature coefficient affect regulation accuracy?
At 12 V nominal, +6.0 mV/K means voltage increases ~72 mV per 12 °C rise. Over a −40 to +125 °C junction range, this contributes ±0.9 V drift - compensated in precision designs using TC-matched resistor networks or feedback loops.
Is the SOD323F package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering only, with peak temperature ≤ 260 °C and time above 217 °C limited to 60 seconds. The SC-90 outline matches IPC-7351B density level A, and solder land pattern is defined in Figure 12 of the datasheet.
BZX84J-C12,115 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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-C12,115 FAQ
1.How can I place an order for BZX84J-C12,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C12,115 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-C12,115 reliable?
The price and inventory of BZX84J-C12,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C12,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C12,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C12,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C12,115?
BZX84J-C12,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C12,115 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-C12,115?
For technical support, including BZX84J-C12,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C12,115 requirements.
6.How does Aetrix verify that BZX84J-C12,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C12,115 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-C12,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C12,115?
All BZX84J-C12,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C12,115, 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-C12,115 part is unused and in its original packaging.
Return procedure for BZX84J-C12,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C12,115 Tags
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