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Nexperia USA Inc. BZX84J-B11,115
- Part No.:
- BZX84J-B11,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-B11,115.pdf
- Description:
- DIODE ZENER 11V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:1,160
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Product details
Overview
BZX84J-B11,115 from Nexperia is a 11 V ±2 % tolerance Zener diode in SOD323F (SC-90) package, rated for 550 mW total power dissipation and 150 °C junction temperature, used for precision voltage regulation and overvoltage protection in automotive and industrial power rails.
For engineers reviewing the BZX84J-B11,115 datasheet, BZX84J-B11,115 pinout, BZX84J-B11,115 application, or BZX84J-B11,115 equivalent, this device supports stable reference generation under transient surges up to 40 W (100 µs), operates with low differential resistance (150 Ω at IZ = 5 mA), and meets AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode functions as a two-terminal shunt voltage regulator, maintaining a stable 11 V reverse breakdown across its cathode-anode terminals when reverse-biased above its nominal Zener voltage. It exhibits a positive temperature coefficient of +5.4 mV/K at IZ = 5 mA, enabling predictable thermal drift behavior in bias networks.
Its non-repetitive peak reverse power dissipation is rated at 40 W for ≥7.5 V types under 100 µs square-wave pulses at Tj = 25 °C, and it delivers ≤0.1 µA reverse leakage at VR = 8.8 V (80 % of VZ), supporting low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 10.78 V to 11.22 V at IZ = 5 mA - tight ±2 % tolerance enables accurate 11 V reference without trimming |
| Total Power Dissipation Ptot | 550 mW at Tamb ≤ 25 °C - defines maximum continuous DC or average pulsed power in PCB-mounted operation |
| Differential Resistance rdiff | 150 Ω max at IZ = 5 mA - low impedance ensures minimal output voltage shift under load current variation |
| Reverse Leakage Current IR | 0.1 µA max at VR = 8.8 V - guarantees negligible quiescent current in undervoltage detection circuits |
| Non-repetitive Peak Power PZSM | 40 W at tp = 100 µs - supports robust transient suppression in automotive load-dump scenarios |
| Junction Temperature Tj | 150 °C max - enables reliable operation in under-hood and industrial control environments |
| AEC-Q101 Qualified | Yes - certified for automotive discrete semiconductor stress testing, including temperature cycling and HTRB |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: 2.3 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse bias current during Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 150 Ω max at 5 mA - minimizes regulation error across varying load currents |
| AEC-Q101 qualification | Validated for automotive use - supports deployment in engine control units and ADAS power supplies |
| Small SOD323F footprint | 2.3 mm × 1.35 mm - enables high-density layout in space-constrained modules like battery management ICs |
| Wide operating temperature | −55 °C to +150 °C ambient - ensures functionality across automotive cold-crank and under-hood hot-soak conditions |
| Stable temperature coefficient | +5.4 mV/K at 5 mA - allows predictable compensation in temperature-sensitive reference designs |
Applications
| Automotive ECU Power Rail Protection | Industrial Sensor Bias Reference |
|---|---|
Use Scenario: Clamping 12 V supply transients in engine control unit power distribution networks. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy during load dump events. Use Value: Withstands 40 W non-repetitive pulses at 100 µs, preventing downstream IC damage without external TVS stacking. |
Use Scenario: Providing stable 11 V bias for analog front-end amplifiers in pressure/temperature sensors. IC Role / Device Role / Timing Role: Precision voltage reference source with low dynamic impedance. Use Value: 150 Ω differential resistance and ±2 % tolerance ensure <±110 mV absolute error at 5 mA, meeting sensor ADC reference stability requirements. |
| Consumer Power Supply Overvoltage Detection | Medical Device Standby Regulator |
Use Scenario: Monitoring USB-C PD adapter output for overvoltage shutdown triggers. IC Role / Device Role / Timing Role: Reverse-biased threshold detector feeding comparator input. Use Value: 0.1 µA leakage at 8.8 V enables ultra-low-power monitoring with sub-1 µA standby current in fault-detection circuitry. |
Use Scenario: Maintaining isolated 11 V standby rail for real-time clock and memory retention in portable diagnostics equipment. IC Role / Device Role / Timing Role: Low-power shunt regulator sustaining backup voltage during main supply interruption. Use Value: 550 mW Ptot and −55 °C to +150 °C rating support uninterrupted operation across clinical environmental ranges and sterilization cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11,115 | ±5 % tolerance (10.4 V–11.6 V), higher rdiff (150 Ω typ vs. 150 Ω max), same package and PZSM | Acceptable where tighter regulation not required; lower cost for non-critical biasing | Select for cost-sensitive consumer applications where ±5 % VZ drift is tolerable |
| MMSZ4689T1G | 11 V ±5 %, SOD-123 package (larger), 500 mW Ptot, no AEC-Q101 qualification | Limited to commercial-grade systems; incompatible footprint requires PCB redesign | Choose only if SOD-123 is already standardized and automotive qualification is unnecessary |
Compared with BZX84J-B11,115, the BZX84-C11,115 trades tolerance and guaranteed rdiff for lower cost, while MMSZ4689T1G sacrifices automotive qualification and thermal performance for legacy footprint compatibility - making the BZX84J-B11,115 optimal for new AEC-Q101-compliant designs requiring precision and compactness.
Availability
BZX84J-B11,115 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor biasing, consumer overvoltage detection, and medical standby regulation requiring stable component supply across extended temperature and surge conditions.
Supply support for BZX84J-B11,115 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 efficiency-driven, high-volume logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for automotive and industrial voltage regulation where reliability, small size, and surge resilience are critical.
FAQ
What is the maximum non-repetitive surge current for BZX84J-B11,115?
The device supports a non-repetitive peak reverse current of 2.5 A at 100 µs pulse width and Tj = 25 °C, derived from its 40 W PZSM rating and 11 V nominal Zener voltage. This value is confirmed in Table 8 of the datasheet for BZX84J-B11 under IZSM column.
Does BZX84J-B11,115 require derating above 25 °C ambient?
Yes - total power dissipation must be linearly derated above 25 °C ambient at 4.4 mW/°C, based on its 230 K/W junction-to-ambient thermal resistance and 550 mW rating at Tamb ≤ 25 °C. Derating ensures junction temperature remains ≤150 °C.
How is polarity identified on the BZX84J-B11,115 package?
The cathode is marked by a visible bar on the top surface of the SOD323F package, aligned with pin 1 per Figure 11 in the datasheet. Pin 1 connects to the cathode terminal, and pin 2 is the anode - consistent across all BZX84J series devices.
Is BZX84J-B11,115 compatible with lead-free reflow soldering?
Yes - the device is qualified for standard lead-free reflow profiles per J-STD-020, with peak temperatures up to 260 °C. The recommended footprint matches Figure 12 (sod323f_fr), using 0.6 mm × 0.5 mm solder pads with solder mask defined openings.
BZX84J-B11,115 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):
- 11 V
- Tolerance:
- ±2%
- 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-B11,115 FAQ
1.How can I place an order for BZX84J-B11,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-B11,115 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-B11,115 reliable?
The price and inventory of BZX84J-B11,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-B11,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-B11,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-B11,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-B11,115?
BZX84J-B11,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-B11,115 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-B11,115?
For technical support, including BZX84J-B11,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-B11,115 requirements.
6.How does Aetrix verify that BZX84J-B11,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-B11,115 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-B11,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-B11,115?
All BZX84J-B11,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-B11,115, 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-B11,115 part is unused and in its original packaging.
Return procedure for BZX84J-B11,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-B11,115 Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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