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Nexperia USA Inc. BZX84W-C62X
- Part No.:
- BZX84W-C62X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C62X.pdf
- Description:
- DIODE ZENER 62V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,380
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Product details
Overview
BZX84W-C62X from Nexperia is a ±5 % tolerance Zener diode with 62 V nominal regulation voltage, 150 Ω typical differential resistance at 2 mA, and 64.4 mV/K temperature coefficient, housed in an SOT323 (SC-70) package for space-constrained voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the BZX84W-C62X datasheet, BZX84W-C62X pinout, BZX84W-C62X application, or BZX84W-C62X equivalent, this device serves as a precision shunt regulator in low-power DC-DC converters, ESD-clamped sensor interfaces, and analog front-end bias networks where stable 62 V clamping with minimal thermal drift is required.
Technical Context
This Zener operates in reverse breakdown mode with a specified test current of 2 mA for VZ measurement, delivering 62 V ±5 % regulation under steady-state conditions. Its 150 Ω differential resistance ensures predictable dynamic impedance during load transients.
The device exhibits a +64.4 mV/K temperature coefficient above 6 V, enabling predictable positive drift compensation in temperature-sensitive references. Thermal resistance from junction to ambient is 455 K/W on standard FR4 PCB, limiting continuous power dissipation to 275 mW at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 62 V ±5 % - defines precise clamping threshold for overvoltage protection circuits |
| Differential Resistance | 150 Ω at IZ = 2 mA - determines output impedance and regulation error under varying load current |
| Temperature Coefficient | +64.4 mV/K - quantifies voltage drift per degree Celsius rise, critical for thermal stability in reference designs |
| Maximum Power Dissipation | 275 mW at Tamb = 25 °C - sets upper limit for continuous DC power handling on standard FR4 PCB |
| Reverse Leakage Current | 50 nA at VR = 43.4 V - ensures minimal quiescent current in high-impedance bias networks |
| Forward Voltage | 0.9 V at IF = 10 mA - defines conduction threshold when used in series forward-path configurations |
| Junction Temperature Limit | 150 °C - constrains maximum operating temperature for reliability in enclosed environments |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals, optimized for automated placement and reflow soldering on high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node in reverse-biased Zener configuration; carries forward current when biased positively |
| 2 | Not Connected (n.c.) | Internally unconnected terminal; must remain floating-no PCB trace or solder mask should contact it |
| 3 | Cathode (K) | Connects to higher-potential node in reverse-biased operation; referenced to ground or supply rail for shunt regulation |
Key Features
| Feature | Design Value |
|---|---|
| Wide Zener voltage range | Covers 2.4 V to 75 V in E24 steps-enables single-family selection across diverse supply rails and protection thresholds |
| Tight tolerance option | ±5 % (C-series) provides cost-effective balance between precision and manufacturability for non-critical references |
| Low capacitance | 0.3 pF at 1 MHz and 0 V reverse bias-minimizes signal coupling in RF and high-speed analog circuits |
| High surge capability | 40 W non-repetitive peak reverse power (100 µs pulse)-absorbs transient energy without failure in clamp applications |
| Thermal stability | +64.4 mV/K coefficient enables predictable drift modeling for compensated reference designs |
Applications
| Power Supply Feedback Loop | Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-boost converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Shunt regulator providing precise 62 V reference to TL431-like controller ICs or discrete transistor-based error amplifiers. Use Value: Maintains ±1.5 % output regulation over line/load/temperature with minimal component count and no external trimming. |
Use Scenario: Protecting ADC input pins from overvoltage events in industrial 4–20 mA loop receivers. IC Role / Device Role / Timing Role: Clamping diode placed between signal line and ground, conducting only during fault conditions exceeding 62 V. Use Value: Limits transient-induced damage while adding <0.3 pF parasitic capacitance that preserves signal integrity up to 100 MHz. |
| Reference Voltage Generator | ESD Protection Interface |
Use Scenario: Generating stable bias voltage for op-amp input stages in battery-powered instrumentation amplifiers. IC Role / Device Role / Timing Role: Zener diode operating at 2 mA in constant-current-sourced configuration to deliver low-noise 62 V reference. Use Value: Achieves <10 ppm/°C effective TC after simple resistor-based temperature compensation using its known +64.4 mV/K slope. |
Use Scenario: Secondary-level ESD protection on RS-485 transceiver bus lines exposed to IEC 61000-4-2 contact discharge. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated during 8 kV HBM surges, diverting current away from sensitive PHY circuitry. Use Value: Withstands 40 W non-repetitive surge (100 µs) and limits clamping voltage to ≤65 V, staying within transceiver absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B62 | ±2 % tolerance, 100 Ω rdif at 5 mA, +64.4 mV/K TC | Higher precision for metrology-grade references; requires tighter current control | Select when regulation accuracy <±1.25 % is mandatory and test current can be stabilized at 5 mA |
| MMSZ5259B | 62 V ±5 %, 170 Ω rdif at 20 mA, +72 mV/K TC, SOD-123 package | Larger footprint and higher thermal resistance (500 K/W), limiting power handling to 200 mW | Choose only if SOD-123 is already standardized in layout and 275 mW dissipation is not required |
Compared with BZX84W-C62X, BZX84W-B62 offers tighter tolerance but demands higher test current and stricter thermal management, while MMSZ5259B sacrifices power rating and thermal performance for legacy package compatibility-neither matches the 275 mW capability and 455 K/W Rth(j-a) of the SOT323 variant.
Availability
BZX84W-C62X is available at Aetrix Electronics and suitable for power supply feedback loops, sensor signal conditioning, reference voltage generation, and ESD protection interfaces requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX84W-C62X 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 logic, discrete, and MOSFET devices, headquartered in Nijmegen, Netherlands.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, cost-efficient voltage regulation and clamping in consumer, industrial, and computing applications where SOT323 packaging and E24 voltage coverage are essential.
FAQ
What is the maximum continuous reverse current the BZX84W-C62X can sustain without degradation?
The device supports a maximum forward current of 200 mA, but for Zener operation, continuous reverse current is limited by power dissipation. At 25 °C ambient on standard FR4, 275 mW / 62 V ≈ 4.4 mA is the practical upper limit for sustained reverse bias without exceeding thermal limits or accelerating aging.
Can BZX84W-C62X be used in series with another Zener to achieve higher regulation voltage?
Yes, but with caution: series connection increases total dynamic impedance and thermal mismatch risk. Each diode must share current equally; unequal leakage or TC will cause voltage imbalance. For 124 V regulation, two BZX84W-C62X units require matched batch selection and derated power (≤137.5 mW each) to avoid thermal runaway.
Does the 'n.c.' pin require PCB layout clearance or grounding?
Pin 2 is internally not connected and must remain electrically isolated. No copper trace, solder mask opening, or thermal pad should contact it. Maintain ≥0.2 mm solder mask web around the pad to prevent accidental shorting during reflow or cleaning processes.
How does the +64.4 mV/K temperature coefficient impact long-term stability in a 62 V reference design?
Over a 50 °C ambient range (25–75 °C), the Zener voltage shifts +3.22 V-approximately 5.2 % of nominal value. To maintain <±0.5 % overall drift, designers must either use active compensation (e.g., opposing TC resistors) or restrict operating temperature range to ≤8 °C variation around nominal.
BZX84W-C62X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C62X FAQ
1.How can I place an order for BZX84W-C62X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C62X 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 BZX84W-C62X reliable?
The price and inventory of BZX84W-C62X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C62X is usually 5 days.
3.What payment methods are accepted for BZX84W-C62X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C62X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C62X?
BZX84W-C62X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C62X 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 BZX84W-C62X?
For technical support, including BZX84W-C62X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C62X requirements.
6.How does Aetrix verify that BZX84W-C62X is sourced from the original manufacturer or authorized distributors?
All BZX84W-C62X 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 BZX84W-C62X meets industry standards.
7.What is the process for return or replacement of BZX84W-C62X?
All BZX84W-C62X units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C62X, 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 BZX84W-C62X part is unused and in its original packaging.
Return procedure for BZX84W-C62X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C62X Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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