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Nexperia USA Inc. BZX384-C62-QX
- Part No.:
- BZX384-C62-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C62-QX.pdf
- Description:
- DIODE ZENER 62V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
BZX384-C62-Q from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 62 V nominal breakdown voltage at IZ = 2 mA, with 300 mW total power dissipation and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX384-C62-Q datasheet, BZX384-C62-Q pinout, BZX384-C62-Q application, or BZX384-C62-Q equivalent, this device serves as a precision low-power voltage reference in ECU power rails, sensor biasing circuits, and overvoltage clamping where stable 62 V regulation under transient conditions is required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable 62 V reference across its terminals when current exceeds the knee threshold (IZ ≥ 2 mA). Its differential resistance of 450 Ω at IZ = 2 mA defines regulation stiffness under load variation.
The device exhibits a positive temperature coefficient of +0.05 mV/K at IZ = 2 mA and supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses, enabling robust surge suppression in 12 V/24 V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 62 V nominal at IZ = 2 mA; ±5 % tolerance band (58.0–66.0 V) ensures predictable clamping level in safety-critical voltage monitoring. |
| Total Power Dissipation Ptot | 300 mW at Tamb ≤ 25 °C on FR4 PCB; sets maximum continuous DC power handling without forced cooling. |
| Differential Resistance rdif | 450 Ω max at IZ = 2 mA; determines output impedance and regulation error under varying load current. |
| Reverse Current IR | ≤215 μA at VR = 47.6 V; defines leakage-induced error in high-impedance reference nodes. |
| Non-repetitive Peak Power PZSM | 40 W for tp = 100 μs; enables transient overvoltage suppression without failure during load dump events. |
| Junction Temperature Tj | 150 °C max; supports operation in under-hood automotive environments with ambient up to +125 °C. |
| AEC-Q101 Qualified | Validated for automotive discrete semiconductor stress testing including HTGB, HTRB, and temperature cycling. |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 2-terminal, cathode-marked with bar, dimensions 1.8 mm × 1.35 mm × 0.95 mm, optimized for automated reflow assembly on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; reverse-bias anode-to-cathode voltage establishes breakdown conduction. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during Zener operation; polarity must be observed to avoid forward conduction. |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % voltage tolerance | Enables cost-effective regulation where tight accuracy is not required, such as pre-regulator stages or coarse voltage clamping. |
| AEC-Q101 qualification | Confirms reliability for automotive powertrain and body electronics applications subject to extended temperature and vibration stress. |
| 40 W non-repetitive peak power | Supports immunity to ISO 7637-2 Load Dump pulses without derating or external TVS supplementation. |
| Low thermal resistance Rth(j-sp) | 110 K/W to solder point enables efficient heat transfer into PCB copper, sustaining 300 mW dissipation without heatsinking. |
| SOD323 footprint compatibility | Standardized 0.95 mm height and 0.6 mm pad spacing aligns with IPC-7351B for seamless placement in space-constrained modules. |
Applications
| Automotive ECU Power Monitoring | Industrial Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 24 V battery rail in engine control unit to detect overvoltage faults above 30 V. IC Role / Device Role / Timing Role: Zener clamp referenced to microcontroller ADC input, limiting sensed voltage to safe 62 V ceiling. Use Value: Prevents ADC saturation and protects input protection diodes during load dump transients up to 40 V peak. |
Use Scenario: Providing stable bias voltage for piezoresistive pressure sensor bridge in hydraulic control valve. IC Role / Device Role / Timing Role: Precision reference source for Wheatstone bridge excitation, operating continuously at 2 mA quiescent current. Use Value: Maintains <±0.5 % full-scale output drift over -40 °C to +125 °C due to matched TC and low rdif. |
| LED Driver Overvoltage Protection | Programmable Logic Supply Clamp |
|
Use Scenario: Clamping boost converter output in automotive interior lighting to prevent LED string damage during feedback loop failure. IC Role / Device Role / Timing Role: Shunt regulator placed across output capacitor, conducting only during overvoltage events >62 V. Use Value: Absorbs 40 W surge energy for 100 μs without degradation, eliminating need for larger TVS diodes. |
Use Scenario: Protecting FPGA I/O bank supply (VCCIO) from accidental 62 V misconnection in test fixture interface. IC Role / Device Role / Timing Role: Fast-acting crowbar element triggered by overvoltage, sinking fault current to ground via cathode. Use Value: Limits voltage excursion to ≤66 V (max VZ) within 100 ns, preventing oxide breakdown in 3.3 V I/O structures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B62-Q | ±2 % tolerance (60.8–63.2 V), lower rdif (150 Ω), higher IR (200 μA at 47.6 V) | Better regulation accuracy but reduced leakage margin in high-impedance sensor references | Select when tighter VZ stability is prioritized over cost and leakage sensitivity. |
| MMSZ5262T1G | ±5 % tolerance (59–65 V), 500 mW Ptot, SOD-123 package, no AEC-Q101 qualification | Higher power rating but lacks automotive qualification and has larger footprint (2.7 × 1.6 mm) | Select for industrial non-automotive designs requiring higher continuous dissipation and legacy footprint compatibility. |
Compared with BZX384-C62-Q, the BZX384-B62-Q offers improved voltage accuracy at the expense of slightly higher leakage, while MMSZ5262T1G provides greater power headroom in a non-automotive-qualified package-making the C-grade optimal for cost-sensitive, AEC-Q101–mandated 62 V clamping where ±5 % tolerance is acceptable.
Availability
BZX384-C62-Q is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor signal conditioning, LED driver protection, and programmable logic interface clamping requiring stable component supply with AEC-Q101 compliance.
Supply support for BZX384-C62-Q 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.
The BZX384-Q series belongs to Nexperia's AEC-Q101–qualified Zener diode portfolio, engineered specifically for voltage regulation and transient suppression in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum continuous reverse current the BZX384-C62-Q can sustain?
The device supports a maximum continuous forward current of 250 mA, but as a Zener regulator, it operates in reverse breakdown. At its rated 62 V VZ, sustained reverse current is limited by thermal constraints: at 25 °C ambient on FR4 PCB, 300 mW dissipation allows ~4.8 mA (300 mW ÷ 62 V) before exceeding Ptot. Derating applies above 25 °C per Rth(j-a) = 415 K/W.
How does the ±5 % tolerance affect circuit performance in a 62 V reference application?
The ±5 % tolerance means VZ ranges from 58.0 V to 66.0 V at IZ = 2 mA. In overvoltage protection, this defines the clamping window; in reference applications, it introduces up to ±3.1 V absolute error. Designers must verify downstream circuit margins accommodate this spread, especially in ADC scaling or comparator trip-point setting.
Can BZX384-C62-Q replace BZX384-A62-Q in an existing design?
Yes, but with trade-offs: the C-grade has wider tolerance (±5 % vs. ±1 %), higher differential resistance (450 Ω vs. 150 Ω), and lower leakage (215 μA vs. 200 μA at 47.6 V). It is suitable if the application tolerates looser voltage accuracy and stiffer regulation is not required-common in non-critical clamping or coarse sensing roles.
What is the significance of the 'Q' suffix in BZX384-C62-Q?
The 'Q' suffix denotes Nexperia's automotive-qualified version, confirming full AEC-Q101 compliance-including stress testing for high-temperature reverse bias (HTGB), high-temperature operating life (HTOL), and temperature cycling. This distinguishes it from commercial-grade variants (e.g., BZX384-C62) not validated for automotive use.
BZX384-C62-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-323
BZX384-C62-QX FAQ
1.How can I place an order for BZX384-C62-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C62-QX 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 BZX384-C62-QX reliable?
The price and inventory of BZX384-C62-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C62-QX is usually 5 days.
3.What payment methods are accepted for BZX384-C62-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C62-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C62-QX?
BZX384-C62-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C62-QX 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 BZX384-C62-QX?
For technical support, including BZX384-C62-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C62-QX requirements.
6.How does Aetrix verify that BZX384-C62-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-C62-QX 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 BZX384-C62-QX meets industry standards.
7.What is the process for return or replacement of BZX384-C62-QX?
All BZX384-C62-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C62-QX, 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 BZX384-C62-QX part is unused and in its original packaging.
Return procedure for BZX384-C62-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C62-QX Tags
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MM5Z5V1ST1G
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