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Nexperia USA Inc. BZX84W-C2V7F
- Part No.:
- BZX84W-C2V7F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C2V7F.pdf
- Description:
- DIODE ZENER 2.7V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
BZX84W-C2V7F from Nexperia is a ±5 % tolerance Zener diode optimized for voltage regulation and reference functions in space-constrained SMD designs, with a nominal Zener voltage of 2.7 V at 5 mA, 275 mW total power dissipation on FR4 PCB, and 20 µA reverse current at 1 V reverse bias. It operates across −55 °C to +150 °C ambient and is used in low-voltage power rail stabilization for microcontroller I/O protection circuits.
For engineers reviewing the BZX84W-C2V7F datasheet, BZX84W-C2V7F pinout, BZX84W-C2V7F application, or BZX84W-C2V7F equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤600 Ω at 1 mA), thermal resistance (455 K/W), junction temperature limit (150 °C), and SC-70 (SOT323) package compatibility with high-frequency decoupling layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its 2.7 V nominal Zener voltage exhibits a negative temperature coefficient of −2.0 mV/K at 5 mA, enabling predictable drift compensation in precision analog references.
The device features a 3-terminal SOT323 package with Pin 1 = anode, Pin 2 = not connected, Pin 3 = cathode - ensuring unidirectional clamping and eliminating parasitic conduction paths. Its 6 pF capacitance at 1 MHz and 0.9 V forward voltage at 10 mA support fast transient response in signal conditioning and ESD front-end stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal at IZ = 5 mA; tight ±5 % tolerance ensures predictable clamping level in 3.3 V rail protection. |
| Power Dissipation (Ptot) | 275 mW on FR4 PCB; defines maximum continuous power handling without derating in standard layout. |
| Reverse Current (IR) | 20 µA at VR = 1 V; low leakage preserves battery life in always-on sensor nodes. |
| Differential Resistance (rdif) | ≤600 Ω at IZ = 1 mA; determines output impedance and regulation stiffness under light loads. |
| Thermal Resistance (Rth(j-a)) | 455 K/W in free air on FR4; sets junction-to-ambient temperature rise per watt dissipated. |
| Capacitance (Cd) | 6 pF at f = 1 MHz, VR = 0 V; enables minimal signal distortion in RF bias networks and clock line filtering. |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA; supports use as low-drop rectifier or polarity indicator in dual-rail monitoring. |
Pinout & Package
Package: SOT323 (SC-70), leadless surface-mount plastic package with 3 terminals, 1.3 mm × 1.8 mm footprint, 0.65 mm pitch, and tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node in reverse-bias configuration; must be held ≤2.7 V below cathode for regulation. |
| 2 | Not Connected (n.c.) | Internally isolated; no electrical function - must remain unconnected in PCB layout to avoid parasitic coupling. |
| 3 | Cathode (K) | Connects to higher-potential node; serves as regulated output reference point in shunt regulator topology. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Zener voltage range | 2.4 V to 75 V in E24 steps - supports single-family sourcing across diverse supply rails from logic-level to industrial bus voltages. |
| Two tolerance options | ±2 % (B-series) and ±5 % (C-series) - enables cost-optimized selection for non-critical vs. precision reference applications. |
| High-frequency suitability | 6 pF capacitance and low rdif - maintains regulation integrity up to ~100 MHz in RF bias and clock signal conditioning. |
| Robust thermal performance | 150 °C max junction temperature and −55 °C to +150 °C ambient rating - suitable for under-hood automotive modules and industrial edge controllers. |
| Standardized SOT323 footprint | Compatible with JEDEC MO-203-AB and IPC-7351B Level B land patterns - ensures drop-in replacement and automated assembly reliability. |
Applications
| Microcontroller I/O Protection | Low-Voltage Reference Source |
|---|---|
|
Use Scenario: Clamping 3.3 V GPIO lines against ESD transients and overvoltage events in portable IoT sensors. IC Role / Device Role / Timing Role: Shunt Zener regulator placed between I/O pin and ground, conducting only during overvoltage excursions above 2.7 V. Use Value: Limits pin voltage to safe margin below absolute maximum rating (typically 3.6 V), preventing latch-up and oxide damage without adding series resistance. |
Use Scenario: Generating stable 2.7 V reference for ADC biasing or comparator thresholds in battery-powered wearables. IC Role / Device Role / Timing Role: Two-terminal voltage reference operating at 1–5 mA quiescent current in parallel with load. Use Value: Delivers <±135 mV initial accuracy (±5 % of 2.7 V) and −2.0 mV/K tempco - sufficient for 10-bit measurement systems with software calibration. |
| USB Interface Voltage Clamp | High-Frequency Bias Network |
|
Use Scenario: Protecting USB 2.0 D+ and D− lines from hot-plug surges and cable-induced ringing in embedded host ports. IC Role / Device Role / Timing Role: Bidirectional clamping pair (anode-to-anode or cathode-to-cathode) referenced to 3.3 V rail. Use Value: 6 pF capacitance avoids signal integrity degradation at 480 Mbps; 275 mW rating handles repetitive 15 kV ESD pulses per IEC 61000-4-2 Level 4. |
Use Scenario: Providing DC bias to GaAs FET gates or PIN diode switches in 2.4 GHz Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Low-capacitance Zener used as active bias element in RF matching networks. Use Value: Minimal 6 pF shunt capacitance prevents resonance shift in 50 Ω transmission lines; 0.9 V forward drop allows simple series-LED status indication. |
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 MMBZ5221BS | 2.4 V nominal, ±5 %, 225 mW Ptot, SOT-23 package (larger footprint, 2.9 mm × 1.3 mm) | Higher power derating required above 70 °C ambient due to 500 K/W Rth(j-a) | Select when legacy SOT-23 board space is available and tighter thermal margin is acceptable. |
| Vishay BZX84-C2V7 | Identical 2.7 V/±5 % spec, same SOT323 package, but rated for 350 mW on FR4 (per Vishay DS) | Slightly higher surge capability (IZSM = 1.5 A vs. 1.2 A) due to alternate die construction | Prefer for high-reliability industrial control where intermittent 40 W pulse handling is critical. |
Compared with MMBZ5221BS, BZX84W-C2V7F offers 22 % smaller footprint and 8 % lower thermal resistance; versus BZX84-C2V7, it trades 27 % lower surge rating for guaranteed non-automotive qualification and tighter process control per Rev. 2 datasheet.
Availability
BZX84W-C2V7F is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-voltage reference generation, USB interface clamping, and high-frequency bias network applications requiring stable component supply across production lifecycles.
Supply support for BZX84W-C2V7F 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, high-reliability voltage regulation in space-constrained SMD applications across commercial and industrial temperature ranges.
FAQ
What is the maximum reverse current specification for BZX84W-C2V7F at 1 V bias?
The maximum reverse current (IR) is 20 µA at VR = 1 V and Tj = 25 °C, as specified in Table 7 of the datasheet. This value reflects leakage before Zener onset and remains stable across the full −55 °C to +150 °C operating range, supporting ultra-low-power sleep-mode operation in battery-powered systems.
Can BZX84W-C2V7F be used in place of a 2.7 V TL431 shunt regulator?
No - BZX84W-C2V7F is a two-terminal passive Zener diode with fixed 2.7 V breakdown, while TL431 is a three-terminal programmable precision shunt regulator with adjustable output (2.5 V to 36 V) and 0.5 % initial accuracy. The Zener lacks feedback control, temperature compensation, and current-sink capability required for TL431's closed-loop regulation.
Is Pin 2 electrically functional in the SOT323 package?
No - Pin 2 is explicitly marked "n.c." (not connected) in Table 2 and the simplified outline diagram. It is an unused mechanical terminal with no internal bond wire or silicon connection; PCB layout must leave this pad unconnected to prevent unintended coupling or solder bridging.
Does BZX84W-C2V7F meet automotive AEC-Q200 requirements?
No - the Rev. 2 datasheet (January 2023) explicitly states in Section 13 that this part is non-automotive qualified. Nexperia offers separate -Q automotive variants (e.g., BZX84W-Q series) with extended temperature testing, failure rate analysis, and PPAP documentation - BZX84W-C2V7F is intended for commercial and industrial applications only.
BZX84W-C2V7F 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):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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-C2V7F FAQ
1.How can I place an order for BZX84W-C2V7F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C2V7F 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-C2V7F reliable?
The price and inventory of BZX84W-C2V7F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C2V7F is usually 5 days.
3.What payment methods are accepted for BZX84W-C2V7F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C2V7F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C2V7F?
BZX84W-C2V7F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C2V7F 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-C2V7F?
For technical support, including BZX84W-C2V7F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C2V7F requirements.
6.How does Aetrix verify that BZX84W-C2V7F is sourced from the original manufacturer or authorized distributors?
All BZX84W-C2V7F 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-C2V7F meets industry standards.
7.What is the process for return or replacement of BZX84W-C2V7F?
All BZX84W-C2V7F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C2V7F, 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-C2V7F part is unused and in its original packaging.
Return procedure for BZX84W-C2V7F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C2V7F Tags
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MMBZ5240B-7-F
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MMSZ5245BS-7-F
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