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Nexperia USA Inc. BZX84J-C30,115
- Part No.:
- BZX84J-C30,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C30,115.pdf
- Description:
- DIODE ZENER 30V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,113
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Product details
Overview
BZX84J-C30,115 from Nexperia is a 30 V ±5 % Zener voltage regulator diode in SOD323F (SC-90) surface-mount package, rated for 550 mW total power dissipation and 150 °C junction temperature, used for precision voltage reference and overvoltage protection in automotive power rails and industrial sensor interfaces.
For engineers reviewing the BZX84J-C30,115 datasheet, BZX84J-C30,115 pinout, BZX84J-C30,115 application, or BZX84J-C30,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), non-repetitive peak reverse power (40 W at tp = 100 μs), differential resistance (66 Ω at IZ = 2 mA), AEC-Q101 qualification, and thermal resistance (230 K/W junction-to-ambient).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 30 V regulation under controlled current conditions. Its design supports low-noise voltage referencing with 66 Ω differential resistance and a positive temperature coefficient of +29.4 mV/K at IZ = 2 mA, enabling predictable drift compensation in temperature-sensitive circuits.
It is qualified per AEC-Q101 for automotive use and features robust surge capability: 40 W non-repetitive peak reverse power at 100 μs pulse width, with maximum reverse current of 1 A under surge conditions. The SC-90 package ensures compact placement on high-density PCBs while maintaining thermal performance via optimized solder-point thermal resistance (55 K/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 30 V nominal, ±5 % tolerance - defines precise clamping level for 28–32 V regulation window |
| Differential Resistance (rdiff) | 66 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | +29.4 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius for thermal design margining |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - sets continuous DC power limit on standard FR4 PCB |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W at tp = 100 μs - enables transient overvoltage suppression without failure |
| Junction Temperature (Tj) | 150 °C maximum - defines upper thermal operating boundary for reliability modeling |
| Reverse Current (IR) | 0.05 µA at VR = 22.8 V - specifies leakage level below breakdown threshold |
Pinout & Package
The BZX84J-C30,115 uses the SOD323F (SC-90) ultra-small surface-mount plastic package: 2.7 mm × 1.6 mm × 0.95 mm body, 0.5 mm lead pitch, cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for voltage reference function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low differential resistance | 66 Ω at 2 mA - minimizes output voltage variation under changing load current |
| Controlled temperature coefficient | +29.4 mV/K - enables predictable thermal drift behavior for compensated reference designs |
| High surge robustness | 40 W non-repetitive peak power at 100 μs - withstands common automotive load-dump transients |
| Small-form-factor SMD package | SOD323F footprint - supports high-density layout in space-constrained modules like ECUs and sensors |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 5 V microcontroller supply rail against battery voltage fluctuations and load-dump spikes in BCM subassemblies. IC Role / Device Role / Timing Role: Zener shunt regulator providing passive overvoltage clamping and reference voltage generation. Use Value: Maintains MCU operation within safe voltage range using only 30 V Zener breakdown and 40 W surge rating, eliminating need for active regulators in auxiliary rails. |
Use Scenario: Providing stable 30 V reference for 4–20 mA transmitter circuitry in pressure/temperature transducers. IC Role / Device Role / Timing Role: Precision voltage reference element establishing loop-supply headroom and calibration baseline. Use Value: Enables <1 % full-scale error over -40 °C to +125 °C due to known +29.4 mV/K drift and low 66 Ω rdiff. |
| Power Supply Overvoltage Protection | Embedded System Reset Circuitry |
Use Scenario: Clamping input voltage to protect downstream DC-DC converters from >32 V transients in 24 V industrial power systems. IC Role / Device Role / Timing Role: Passive crowbar device limiting maximum voltage seen by converter enable and feedback pins. Use Value: Responds within nanoseconds to surges up to 40 W, preventing latch-up or gate oxide damage without external control logic. |
Use Scenario: Generating clean reset signal when main 3.3 V rail drops below threshold during brown-out events. IC Role / Device Role / Timing Role: Zener-based comparator reference in discrete reset generator circuits. Use Value: Delivers stable 30 V reference for hysteresis-setting resistors, ensuring repeatable 2.95 V reset threshold across temperature and unit variance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C30,115 | Same Zener voltage and package, but ±5 % tolerance and no AEC-Q101 qualification | Limited to commercial-grade consumer or non-safety-critical industrial use | Select when automotive qualification is unnecessary and cost sensitivity is high |
| MMSZ5261ET1G | 30 V ±5 %, SOD-123 package, 500 mW Ptot, 30 Ω rdiff at 20 mA - lower differential resistance but larger footprint | Better regulation accuracy under higher currents; less suitable for ultra-dense layouts | Choose when tighter load regulation is required and board space permits larger SOD-123 |
Compared with BZX84J-C30,115, the BZX84-C30,115 lacks automotive qualification and has identical electrical specs but reduced reliability assurance, while MMSZ5261ET1G offers lower rdiff at higher test current but requires more PCB area and lacks AEC-Q101 validation.
Availability
BZX84J-C30,115 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, and embedded power management systems requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for BZX84J-C30,115 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
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 and industrial environments.
FAQ
What is the maximum continuous forward current for BZX84J-C30,115?
The absolute maximum forward current is 250 mA per the 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 limited power handling in forward direction.
How does the ±5 % tolerance affect regulation accuracy in a 30 V reference circuit?
The ±5 % tolerance means the actual Zener voltage falls between 28.5 V and 31.5 V at IZ = 2 mA. For precision reference use, this requires system-level calibration or trimming. In overvoltage protection, it defines the clamping band: devices will begin conducting significantly between 28.5 V and 31.5 V, making the worst-case trip point 28.5 V under minimum VZ condition.
Can BZX84J-C30,115 be used in parallel for higher power dissipation?
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 leads to thermal runaway and premature failure. For higher power, use a single higher-rated device or active regulation; do not parallel BZX84J-C30,115 units.
Is the SOD323F package compatible with standard reflow soldering profiles?
Yes - Nexperia explicitly recommends reflow soldering only for this package. The device is qualified for JEDEC J-STD-020 moisture sensitivity level 1 (unlimited floor life) and supports peak reflow temperatures up to 260 °C. Footprint dimensions (0.5 mm pad width, 0.6 mm length) match IPC-7351B generic SOD323F land pattern requirements.
BZX84J-C30,115 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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-C30,115 FAQ
1.How can I place an order for BZX84J-C30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C30,115 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-C30,115 reliable?
The price and inventory of BZX84J-C30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C30,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C30,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C30,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C30,115?
BZX84J-C30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C30,115 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-C30,115?
For technical support, including BZX84J-C30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C30,115 requirements.
6.How does Aetrix verify that BZX84J-C30,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C30,115 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-C30,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C30,115?
All BZX84J-C30,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C30,115, 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-C30,115 part is unused and in its original packaging.
Return procedure for BZX84J-C30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C30,115 Tags
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