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Nexperia USA Inc. BZX84J-C75,115
- Part No.:
- BZX84J-C75,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C75,115.pdf
- Description:
- DIODE ZENER 75V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:6,136
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Product details
Overview
BZX84J-C75,115 from Nexperia is a 75 V ±5 % tolerance Zener voltage regulator diode in SOD323F (SC-90) package, rated for 550 mW total power dissipation and qualified to AEC-Q101 for automotive use. It delivers stable reverse breakdown at 75 V with 40 W non-repetitive peak reverse power handling (tp = 100 μs), low differential resistance (≤400 Ω at IZ = 2 mA), and operates across −55 °C to +150 °C ambient.
For engineers reviewing the BZX84J-C75,115 datasheet, BZX84J-C75,115 pinout, BZX84J-C75,115 application, or BZX84J-C75,115 equivalent, key selection criteria include Zener voltage tolerance, surge capability under pulsed conditions, thermal resistance (Rth(j-a) = 230 K/W), and AEC-Q101 qualification status for harsh-environment regulation.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to clamp or regulate voltage in low-power circuits. Its 75 V nominal Zener voltage is specified at IZ = 2 mA, with temperature coefficient SZ = +88.6 mV/K and reverse current IR ≤ 0.05 µA at VR = 70 V.
The device exhibits low dynamic impedance (rdiff ≤ 400 Ω) and junction-to-ambient thermal resistance of 230 K/W on FR4 PCB, enabling reliable operation in space-constrained automotive and industrial control modules where precise overvoltage protection is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V nominal, ±5 % tolerance at IZ = 2 mA - ensures predictable clamping threshold in supply rail protection |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - defines continuous DC power handling on standard FR4 board |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 μs square wave - supports transient surge suppression without failure |
| Differential Resistance (rdiff) | ≤ 400 Ω at IZ = 2 mA - maintains tight regulation under varying load current |
| Reverse Current (IR) | ≤ 0.05 µA at VR = 70 V - guarantees minimal leakage in high-impedance bias networks |
| Thermal Resistance (Rth(j-a)) | 230 K/W on FR4, single-sided copper - determines junction temperature rise under steady-state load |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: 2-terminal, ultra-compact footprint (2.7 × 1.35 mm), cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal - reverse bias applied between K and A |
| 2 (A) | Anode | Connected to ground or lower-potential reference; completes Zener conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Low differential resistance | ≤400 Ω enables stable regulation across ±10 % load current variation |
| Wide operating temperature range | −55 °C to +150 °C ambient supports under-hood and industrial environments |
| Pulsed surge capability | 40 W non-repetitive peak power (tp = 100 μs) protects against ESD and load dump transients |
| Small SOD323F footprint | 2.7 × 1.35 mm outline allows dense PCB layout in space-constrained modules |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus interface lines exposed to load dump transients up to 40 V. IC Role / Device Role / Timing Role: Zener regulator providing overvoltage protection for LIN transceiver input pins. Use Value: Prevents damage to downstream ICs by limiting voltage to 75 V with <0.05 µA leakage below regulation threshold. |
Use Scenario: Reference voltage stabilization for 24 V industrial analog sensor outputs in factory automation systems. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining stable 75 V reference for ADC biasing and signal scaling. Use Value: Enables accurate 16-bit measurement resolution by minimizing drift via low rdiff (≤400 Ω) and +88.6 mV/K TC compensation. |
| Power Supply Overvoltage Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage crowbar in isolated 48 V DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Zener-triggered shutdown element that activates protection circuitry when output exceeds 75 V. Use Value: Fast response to overvoltage events (100 μs pulse capability) ensures compliance with IEC 62368-1 safety limits. |
Use Scenario: Surge suppression on 48 V phantom power lines in VoIP phone interfaces. IC Role / Device Role / Timing Role: Primary clamping device absorbing lightning-induced surges before reaching line driver ICs. Use Value: Withstands 40 W transient pulses while maintaining <0.05 µA leakage at 70 V - critical for low-noise analog line integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5265BLT1G | 75 V, ±5 %, SOT-23 package, Ptot = 350 mW, Rth(j-a) = 357 K/W | Lower power rating and higher thermal resistance limit use in sustained 75 V regulation | Select only for low-duty-cycle clamping where 350 mW average dissipation suffices |
| Vishay BZX84-C75-E3-08 | 75 V, ±5 %, SOD-323 package, Ptot = 365 mW, AEC-Q101 not claimed | Lacks automotive qualification and has 34 % lower power rating than BZX84J-C75,115 | Acceptable for commercial-grade 75 V regulation but not for automotive or high-reliability industrial use |
Compared with MMBZ5265BLT1G and BZX84-C75-E3-08, BZX84J-C75,115 offers superior thermal performance (230 vs. ≥350 K/W), higher continuous power (550 mW), and formal AEC-Q101 validation - making it the only choice for automotive-compliant 75 V Zener regulation requiring long-term stability under thermal stress.
Availability
BZX84J-C75,115 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, power supply overvoltage protection, and telecom line interface protection requiring stable component supply with full traceability and lifecycle support.
Supply support for BZX84J-C75,115 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 energy-efficient solutions.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient protection in automotive and industrial power management systems.
FAQ
What is the maximum continuous reverse current the BZX84J-C75,115 can sustain at 75 V?
The device is not rated for continuous conduction at its Zener voltage. At VR = 70 V (just below VZ), reverse current is guaranteed ≤ 0.05 µA. Sustained operation at 75 V requires external current limiting to keep power within 550 mW - typically achieved with a series resistor sized for IZ ≈ 2–5 mA per datasheet test conditions.
Does the BZX84J-C75,115 support reflow soldering only, or can it be hand-soldered?
Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering risks thermal damage due to the SOD323F package's small thermal mass and sensitivity to localized overheating. The datasheet explicitly prohibits wave or hand-soldering and specifies JEDEC J-STD-020-compliant reflow profiles.
How does the temperature coefficient of +88.6 mV/K affect regulation accuracy over temperature?
This positive coefficient means VZ increases by ~88.6 mV per 1 K rise in junction temperature. Over a 125 °C range (−55 °C to +70 °C ambient), VZ shifts up to ~11 V - so system-level compensation (e.g., using matched NTC thermistors or digital calibration) is required for precision regulation beyond ±5 % tolerance bands.
Is the SOD323F package of BZX84J-C75,115 compatible with standard SOT-23 pick-and-place equipment?
No - SOD323F (2.7 × 1.35 mm) is significantly smaller than SOT-23 (2.9 × 1.3 mm) and uses different land patterns. Its 0.5 mm pin pitch and asymmetric pad geometry require dedicated nozzle tooling and fiducial alignment. Use of SOT-23 feeders or placement programs will result in misalignment or tombstoning.
BZX84J-C75,115 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):
- 75 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 175 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 52.5 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-C75,115 FAQ
1.How can I place an order for BZX84J-C75,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C75,115 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-C75,115 reliable?
The price and inventory of BZX84J-C75,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C75,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C75,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C75,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C75,115?
BZX84J-C75,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C75,115 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-C75,115?
For technical support, including BZX84J-C75,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C75,115 requirements.
6.How does Aetrix verify that BZX84J-C75,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C75,115 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-C75,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C75,115?
All BZX84J-C75,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C75,115, 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-C75,115 part is unused and in its original packaging.
Return procedure for BZX84J-C75,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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