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Nexperia USA Inc. BZX84W-C10F
- Part No.:
- BZX84W-C10F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C10F.pdf
- Description:
- DIODE ZENER 10V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,824
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Product details
Overview
BZX84W-C10F from Nexperia is a ±5 % tolerance Zener voltage regulator diode rated at 10 V nominal working voltage, housed in an SOT323 (SC-70) surface-mount package, with 275 mW total power dissipation and 200 nA reverse current at VR = 7 V, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84W-C10F datasheet, BZX84W-C10F pinout, BZX84W-C10F application, or BZX84W-C10F equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (90 Ω at IZ = 5 mA), temperature coefficient (+6.4 mV/K), junction-to-ambient thermal resistance (455 K/W), and SOT323 footprint compatibility with high-frequency PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 10 V regulation across load and line variations, with a typical differential resistance of 90 Ω at 5 mA test current, enabling predictable dynamic impedance behavior in feedback paths. Its positive temperature coefficient of +6.4 mV/K supports compensation in mixed-temperature environments when paired with negative-coefficient components.
The device features a not-connected (n.c.) terminal (Pin 2), isolating internal structure from external routing while preserving mechanical symmetry in the SOT323 package. Thermal performance is defined for FR4 PCB mounting with single-sided copper, delivering 455 K/W junction-to-ambient resistance under standard footprint conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.4 V to 10.6 V (±5 % tolerance at IZ = 5 mA); ensures stable reference within 0.6 V window for supply rail clamping. |
| Differential Resistance (rdif) | 90 Ω max at IZ = 5 mA; defines output impedance slope during regulation, critical for ripple rejection in low-current references. |
| Reverse Current (IR) | 200 nA max at VR = 7 V; enables ultra-low leakage in battery-backed or high-impedance bias networks. |
| Total Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 PCB; sets maximum continuous DC power handling without derating. |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA; confirms low-loss forward conduction for polarity-sensitive protection schemes. |
| Temperature Coefficient (SZ) | +6.4 mV/K typical at IZ = 5 mA; quantifies voltage drift per degree, enabling thermal error budgeting in precision designs. |
| Junction Temperature (Tj) | 150 °C absolute maximum; constrains thermal design margin when operating near Ptot limit. |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals, optimized for automated placement and reflow soldering on dense PCBs; dimensions: 2.2 mm × 1.35 mm × 0.95 mm (L × W × H), 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener regulation configuration. |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no routing or grounding permitted. |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node and serves as regulated output reference point. |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables tighter regulation bands than ±10 % parts, reducing need for post-regulation trimming in cost-sensitive consumer electronics. |
| 275 mW power rating on FR4 | Supports sustained operation in space-constrained IoT sensor nodes without heatsinking or airflow. |
| 200 nA reverse leakage at 7 V | Minimizes standby current draw in always-on power management blocks, extending battery life in portable devices. |
| SOT323 package with n.c. pin | Provides mechanical stability and alignment accuracy during pick-and-place, while simplifying layout by eliminating unused pad routing. |
| +6.4 mV/K temperature coefficient | Allows predictable offset correction in temperature-compensated voltage references using complementary TC components. |
Applications
| Power Supply Rail Clamping | Low-Power Reference Generation |
|---|---|
|
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events on 3.3 V or 5 V logic rails. IC Role / Device Role / Timing Role: Zener clamp placed between signal line and ground, conducting only above 10 V threshold. Use Value: Limits fault energy to safe levels using 275 mW dissipation capability, preventing latch-up or gate oxide damage. |
Use Scenario: Providing stable 10 V reference for ADC biasing or DAC feedback in battery-powered instrumentation. IC Role / Device Role / Timing Role: Reverse-biased Zener operating at 1–5 mA, delivering low-drift voltage via its +6.4 mV/K TC. Use Value: Achieves <1 % total error over 0–70 °C with no active compensation, leveraging tight ±5 % initial tolerance. |
| High-Frequency Signal Conditioning | ESD-Sensitive Interface Protection |
|
Use Scenario: AC-coupled clipping in RF front-end stages where fast response and minimal capacitance are required. IC Role / Device Role / Timing Role: Bidirectional clamping element shunting signal peaks above ±10 V relative to ground. Use Value: 3 pF diode capacitance at 0 V bias enables operation up to 100 MHz without signal distortion. |
Use Scenario: Secondary-level ESD protection on USB or UART lines in industrial control modules. IC Role / Device Role / Timing Role: Standby Zener absorbing 40 W non-repetitive surges (tp = 100 µs) before upstream TVS triggers. Use Value: 200 nA leakage avoids loading high-impedance receivers, while 150 °C Tj rating sustains repeated surge events. |
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 MMBZ5240BLT1G | Same 10 V nominal, ±5 % tolerance, but SOT23 package (higher Rth(j-a) = 625 K/W) and 350 mW rating. | Higher thermal resistance limits continuous power in compact layouts; better suited for intermittent duty. | Select when board space allows larger SOT23 and higher peak power is needed, but avoid in thermally constrained FR4 designs. |
| Vishay BZX84-C10-TP | Identical 10 V/±5 % spec and SOT323 package, but 225 mW Ptot and 250 nA IR at 7 V. | Lower power rating reduces margin for sustained regulation; higher leakage affects ultra-low-power sleep modes. | Acceptable for cost-driven replacements where 275 mW headroom and 200 nA leakage are noncritical. |
Compared with MMBZ5240BLT1G and BZX84-C10-TP, BZX84W-C10F delivers superior thermal performance on FR4 (455 K/W vs. 625 K/W), tighter leakage (200 nA vs. 250 nA), and higher continuous power (275 mW vs. 225 mW), making it optimal for space-limited, thermally demanding, or battery-critical applications.
Availability
BZX84W-C10F is available at Aetrix Electronics and suitable for power supply rail clamping, low-power reference generation, high-frequency signal conditioning, and ESD-sensitive interface protection requiring stable component supply across production volumes.
Supply support for BZX84W-C10F 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 manufacturing rooted in process optimization and automotive-grade quality systems.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, designed specifically for cost-effective, space-efficient voltage regulation and protection in consumer, industrial, and computing applications.
FAQ
What is the maximum reverse current specification for BZX84W-C10F at 7 V?
The maximum reverse current (IR) for BZX84W-C10F is 200 nA when reverse voltage (VR) is applied at 7 V, measured at Tj = 25 °C. This value is confirmed in Table 7 of the official Nexperia datasheet Rev. 2 (January 2023) and reflects ultra-low leakage essential for battery-powered and high-impedance circuit operation.
Is Pin 2 of BZX84W-C10F internally connected or should it be left floating?
Pin 2 is explicitly designated "n.c." (not connected) in Table 2 of the Nexperia datasheet and must remain electrically floating-no connection to ground, power, or signal traces. This terminal serves a mechanical and alignment role in the SOT323 package and has no internal semiconductor linkage.
Can BZX84W-C10F be used in place of a 10 V Zener with ±2 % tolerance?
No-BZX84W-C10F is part of the ±5 % tolerance series (denoted by 'C' prefix); the ±2 % variant is BZX84W-B10. Substituting C-series for B-series introduces up to ±2.5 % additional voltage uncertainty (9.4–10.6 V vs. 9.8–10.2 V), which may violate regulation accuracy requirements in precision analog circuits.
What is the thermal resistance from junction to ambient for BZX84W-C10F under standard mounting conditions?
The thermal resistance from junction to ambient (Rth(j-a)) is 455 K/W when mounted on a FR4 PCB with single-sided copper, tin-plated, and using the standard SOT323 footprint per Table 6 of the Nexperia datasheet. This value assumes free-air convection and is not valid for thermally enhanced pads or multi-layer boards.
BZX84W-C10F 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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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-C10F FAQ
1.How can I place an order for BZX84W-C10F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C10F 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-C10F reliable?
The price and inventory of BZX84W-C10F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C10F is usually 5 days.
3.What payment methods are accepted for BZX84W-C10F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C10F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C10F?
BZX84W-C10F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C10F 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-C10F?
For technical support, including BZX84W-C10F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C10F requirements.
6.How does Aetrix verify that BZX84W-C10F is sourced from the original manufacturer or authorized distributors?
All BZX84W-C10F 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-C10F meets industry standards.
7.What is the process for return or replacement of BZX84W-C10F?
All BZX84W-C10F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C10F, 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-C10F part is unused and in its original packaging.
Return procedure for BZX84W-C10F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C10F Tags
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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
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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