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Nexperia USA Inc. BZX84W-B2V7F
- Part No.:
- BZX84W-B2V7F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-B2V7F.pdf
- Description:
- DIODE ZENER 2.7V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,979
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Product details
Overview
BZX84W-B2V7F from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, rated for 2.7 V nominal Zener voltage at 5 mA, 275 mW total power dissipation, and 150 °C maximum junction temperature. It serves as a precision reference or low-power voltage clamp in signal conditioning, power supply feedback, and overvoltage protection circuits.
For engineers reviewing the BZX84W-B2V7F datasheet, BZX84W-B2V7F pinout, BZX84W-B2V7F application, or BZX84W-B2V7F equivalent, this page delivers verified electrical parameters, thermal behavior, terminal configuration, real-world use cases, and validated alternative parts for design-in and sourcing decisions.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its cathode-anode terminals under controlled current conditions. Its 2.7 V nominal Zener voltage is specified at IZ = 5 mA with ±2 % tolerance, and exhibits a negative temperature coefficient of −2.0 mV/K at that bias point.
The device features low differential resistance (≤100 Ω at IZ = 5 mA), reverse leakage current ≤20 µA at VR = 1 V, and junction-to-ambient thermal resistance of 455 K/W on standard FR4 PCB mounting - enabling reliable operation in compact, thermally constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal at IZ = 5 mA; tight ±2 % tolerance ensures predictable regulation in reference circuits. |
| Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 PCB; defines maximum continuous steady-state power handling. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; supports low-loss forward conduction when used bidirectionally or in clamping configurations. |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA; low impedance improves regulation stability against load or line variations. |
| Reverse Leakage (IR) | ≤20 µA at VR = 1 V; minimizes quiescent current in high-impedance bias networks. |
| Junction Temperature (Tj) | −55 °C to +150 °C operating range; enables deployment in industrial and extended-temperature environments. |
| Package | SOT323 (SC-70); ultra-small 3-pin surface-mount footprint (2.2 × 1.35 mm) for space-constrained PCBs. |
Pinout & Package
SOT323 (SC-70) is a leadless, very small surface-mounted plastic package with three terminals in a single-row configuration. The package measures 2.2 mm × 1.35 mm × 0.95 mm and uses standard reflow soldering footprints per Nexperia's recommended land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connected to lower-potential node during Zener operation (reverse-biased). |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating - no PCB trace or component connection permitted. |
| 3 | Cathode (K) | Reverse-bias terminal; connects to higher-potential node to enable Zener breakdown and voltage regulation. |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables precise voltage referencing without post-production trimming in 2.7 V feedback or sensing paths. |
| Low differential resistance (≤100 Ω) | Maintains <±10 mV output shift over ±1 mA load current variation - critical for stable analog references. |
| High-frequency suitability | Capacitance ≤6 pF at f = 1 MHz, VR = 0 V supports use in RF biasing and fast transient suppression. |
| Thermal robustness | Rated for 150 °C junction temperature and qualified per non-automotive industrial reliability standards. |
| SOT323 package compatibility | Standardized footprint aligns with automated pick-and-place and reflow processes across high-volume manufacturing. |
Applications
| Power Supply Feedback | Signal Level Clamping |
|---|---|
|
Use Scenario: Stabilizing output voltage in low-current linear regulators or switching converter feedback loops. IC Role / Device Role / Timing Role: Zener reference element providing fixed 2.7 V threshold to error amplifier input. Use Value: Tight ±2 % tolerance and low rdif ensure <±15 mV regulation error across temperature and load, reducing need for external calibration. |
Use Scenario: Protecting ADC inputs or microcontroller GPIO pins from transient overvoltage events. IC Role / Device Role / Timing Role: Bidirectional clamp limiting signal swing between −0.9 V and +2.7 V relative to ground. Use Value: Low 20 µA leakage at 1 V reverse bias preserves high-impedance sensor interface integrity while clamping sub-100 ns spikes. |
| Reference Voltage Source | Current Source Biasing |
|
Use Scenario: Generating stable bias voltage for op-amp comparators or precision current mirrors. IC Role / Device Role / Timing Role: Shunt reference delivering regulated 2.7 V to high-impedance load nodes. Use Value: −2.0 mV/K temperature coefficient allows predictable drift compensation in ambient-stable designs up to 85 °C. |
Use Scenario: Setting bias current in discrete transistor amplifiers or LED driver circuits. IC Role / Device Role / Timing Role: Fixed-voltage drop element establishing base-emitter or gate-source bias potential. Use Value: 275 mW power rating supports ≥100 mA bias current capability with adequate thermal margin on standard FR4 layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-C2V7 | Same 2.7 V nominal voltage but ±5 % tolerance; higher max reverse leakage (≤50 µA at VR = 1 V). | Acceptable where cost sensitivity outweighs precision; less suitable for <1 % reference accuracy requirements. | Select when budget constraints dominate and ±5 % regulation error is acceptable in final system tolerance stack-up. |
| MMSZ4678T1G | 2.7 V nominal, ±5 %, SOD-123 package; higher Ptot = 500 mW but larger footprint and 1000 Ω typical rdif. | Better power handling but poorer regulation stability; not drop-in due to different package and thermal profile. | Choose only if board layout permits SOD-123 and application demands >275 mW dissipation with relaxed regulation fidelity. |
Compared with BZX84W-B2V7F, BZX84W-C2V7 trades precision for cost, while MMSZ4678T1G sacrifices regulation accuracy and miniaturization for higher power capacity - making the BZX84W-B2V7F optimal for space-constrained, precision-referenced industrial control and signal chain designs.
Availability
BZX84W-B2V7F is available at Aetrix Electronics and suitable for power supply feedback, signal level clamping, reference voltage source, and current source biasing requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for BZX84W-B2V7F 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 core expertise in automotive-qualified and industrial-grade components.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage regulation and clamping in compact, thermally efficient SMT packages across consumer, industrial, and computing applications.
FAQ
What is the maximum reverse current at 1 V for BZX84W-B2V7F?
The maximum reverse current (IR) is 20 µA at VR = 1 V and Tj = 25 °C, as specified in Table 7 of the Nexperia datasheet. This low leakage supports high-impedance bias networks and minimizes error in precision reference applications.
Can BZX84W-B2V7F be used in bidirectional ESD protection?
No - BZX84W-B2V7F is a unidirectional Zener diode with anode and cathode terminals; it lacks symmetric breakdown characteristics. For bidirectional ESD protection, purpose-built TVS diodes such as PESD5V0S1BA should be used instead.
Is the n.c. pin electrically isolated or internally tied to substrate?
Pin 2 is explicitly designated "not connected" in Table 2 and requires no electrical connection. It is fully isolated - neither bonded to die substrate nor linked to anode or cathode - and must remain unconnected on PCB layout.
What is the thermal resistance when mounted on standard FR4?
The junction-to-ambient thermal resistance (Rth(j-a)) is 455 K/W under standard mounting conditions: FR4 PCB, single-sided copper, tin-plated, and Nexperia's recommended footprint - confirmed in Table 6 of the datasheet.
BZX84W-B2V7F 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:
- ±2%
- 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-B2V7F FAQ
1.How can I place an order for BZX84W-B2V7F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-B2V7F 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-B2V7F reliable?
The price and inventory of BZX84W-B2V7F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-B2V7F is usually 5 days.
3.What payment methods are accepted for BZX84W-B2V7F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-B2V7F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-B2V7F?
BZX84W-B2V7F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-B2V7F 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-B2V7F?
For technical support, including BZX84W-B2V7F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-B2V7F requirements.
6.How does Aetrix verify that BZX84W-B2V7F is sourced from the original manufacturer or authorized distributors?
All BZX84W-B2V7F 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-B2V7F meets industry standards.
7.What is the process for return or replacement of BZX84W-B2V7F?
All BZX84W-B2V7F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-B2V7F, 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-B2V7F part is unused and in its original packaging.
Return procedure for BZX84W-B2V7F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-B2V7F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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