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Nexperia USA Inc. BZX84-C5V1/DG/B4VL
- Part No.:
- BZX84-C5V1/DG/B4VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C5V1/DG/B4VL.pdf
- Description:
- DIODE ZENER 5.1V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,537
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Product details
Overview
BZX84-C5V1/DG/B4VL from Nexperia is a surface-mount Zener diode with nominal 5.1 V breakdown voltage, ±5% tolerance, 300 mW power dissipation, and 5 mA test current, used for voltage regulation and overvoltage protection in low-power analog circuits and microcontroller I/O clamping.
For engineers reviewing the BZX84-C5V1/DG/B4VL datasheet, BZX84-C5V1/DG/B4VL pinout, BZX84-C5V1/DG/B4VL application, or BZX84-C5V1/DG/B4VL equivalent, key selection criteria include Zener voltage accuracy, dynamic impedance at operating current, temperature coefficient, maximum power derating, and SOT-23 package thermal performance.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable reference voltage across its terminals. It exhibits a typical dynamic impedance of 60 Ω at 5 mA and a temperature coefficient of +2.5 mV/K near 5.1 V, enabling predictable drift compensation in precision bias networks.
The SOT-23 package supports PCB-level transient suppression with fast response to ESD events up to ±8 kV (HBM), and its low leakage current (<1 µA at 1 V) ensures minimal loading on high-impedance sensor nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V ±5% at IZ = 5 mA - defines regulated output level for reference or clamp circuits |
| Power Dissipation (Ptot) | 300 mW at Tamb = 25°C - sets maximum continuous power before thermal shutdown in SOT-23 |
| Dynamic Impedance (ZZT) | 60 Ω max at IZ = 5 mA - determines regulation stiffness under load variation |
| Reverse Leakage (IR) | <1 µA at VR = 1 V - avoids signal path loading in high-Z analog inputs |
| Temperature Coefficient (TC) | +2.5 mV/K at 5.1 V - enables predictable voltage shift per °C for thermal design margining |
| Package | SOT-23 - provides standard pick-and-place compatibility and 1.25 mm² board area footprint |
Pinout & Package
SOT-23 package with three terminals: anode (pin 1), cathode (pin 2), and unused lead (pin 3). Cathode marked by band; pin 3 is internally unconnected and electrically isolated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower-potential node during Zener operation; required for proper reverse-bias orientation |
| Cathode (Pin 2) | Breakdown voltage reference terminal | Connected to regulated rail or protected node; carries full Zener current during clamping |
| Pin 3 | No-connect (NC) | Internally unconnected; must remain floating or grounded per layout best practice to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables tight regulation without post-production trimming in cost-sensitive consumer designs |
| Low dynamic impedance (60 Ω) | Maintains <±25 mV output deviation across ±1 mA load current change at 5.1 V |
| SOT-23 footprint | Supports automated assembly and achieves 0.65 mm pitch compatibility with mainstream PCB reflow profiles |
| ESD rating (IEC 61000-4-2) | Withstands ±8 kV contact discharge, allowing direct placement on exposed I/O lines without external TVS |
Applications
| Microcontroller I/O Protection | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Clamping 3.3 V GPIO pins against ESD transients and supply rail overshoot in portable IoT nodes. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage protector between I/O line and ground. Use Value: Limits voltage excursion to ≤5.6 V (5.1 V + 5% tolerance + dynamic rise), preventing CMOS gate oxide damage. | Use Scenario: Providing stable 5.1 V reference for resistive bridge sensors in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Passive voltage reference source with minimal quiescent current draw. Use Value: Delivers <1 µA leakage at 1 V reverse bias, preserving >10-year battery life in sleep-mode operation. |
| USB Data Line Clamp | Industrial Signal Conditioning |
Use Scenario: Protecting USB 2.0 D+ and D− lines from cable-induced surges in embedded host controllers. IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured in back-to-back Zener pair topology. Use Value: Achieves <1 ns response time and clamps transients to within ±0.5 V of 3.3 V rail using dual BZX84-C5V1 devices. | Use Scenario: Stabilizing 5 V supply rails for op-amp front-ends in 4–20 mA loop transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining reference stability across –40°C to +125°C ambient. Use Value: Temperature coefficient of +2.5 mV/K allows predictable 12.75 mV total shift over 50°C range, simplifying calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | Same 5.1 V nominal, but ±5% tolerance achieved at 20 mA test current; higher ZZT = 170 Ω | Higher power handling (350 mW) suits intermittent surge clamping; less stable under light loads | Select when peak pulse energy exceeds 300 mW but DC regulation precision is secondary |
| BZX84-C5V1,215 | Identical electrical specs and SOT-23 package; differs only in tape-and-reel packaging (10,000 pcs vs. 3,000 pcs) | No functional difference; same PCB layout and thermal behavior | Choose based on production volume and reel size compatibility with SMT line feeders |
Compared with MMBZ5221BS-7-F and BZX84-C5V1,215, the BZX84-C5V1/DG/B4VL offers optimal balance of low-impedance regulation at 5 mA, compact SOT-23 thermal profile, and standardized reel configuration for mid-volume manufacturing.
Availability
BZX84-C5V1/DG/B4VL is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-power sensor biasing, and industrial signal conditioning requiring stable component supply and consistent parametric performance across production lots.
Supply support for BZX84-C5V1/DG/B4VL 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 BZX84 series belongs to Nexperia's standard Zener diode portfolio, engineered for robust voltage reference and clamping in space-constrained, cost-sensitive applications where reliability and repeatability are critical.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The BZX84-C5V1/DG/B4VL has a nominal Zener voltage of 5.1 V with ±5% tolerance, meaning breakdown occurs between 4.85 V and 5.36 V at 5 mA test current. It is not rated for sustained reverse voltage above this range; operation beyond 5.36 V risks thermal runaway if power dissipation exceeds 300 mW.
Can this device be used in series or parallel configurations for higher voltage or current handling?
Series connection is possible to achieve higher clamping voltages, but mismatched Zener voltages cause uneven stress and potential failure. Parallel use is strongly discouraged due to thermal runaway risk-minor VZ variations cause current hogging. For higher current, select a single higher-power Zener like PZM5.1NB instead.
Does the /DG/B4VL suffix indicate a specific revision or qualification level?
Yes-the /DG/B4VL suffix denotes Nexperia's standard commercial-grade variant with AEC-Q200 stress testing compliance, halogen-free construction, and RoHS/REACH conformity. It reflects full qualification for industrial temperature range (–65°C to +150°C) and moisture sensitivity level 1 (MSL1).
How does the SOT-23 package affect thermal performance in continuous regulation mode?
In continuous regulation, the SOT-23 package limits power dissipation to 300 mW at 25°C ambient. With a thermal resistance of 400 K/W (junction-to-ambient), each 100 mW of dissipated power raises junction temperature by ~40°C-requiring derating to ~150 mW at 70°C ambient to stay within 150°C max junction limit.
BZX84-C5V1/DG/B4VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-C5V1/DG/B4VL FAQ
1.How can I place an order for BZX84-C5V1/DG/B4VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C5V1/DG/B4VL 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 BZX84-C5V1/DG/B4VL reliable?
The price and inventory of BZX84-C5V1/DG/B4VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C5V1/DG/B4VL is usually 5 days.
3.What payment methods are accepted for BZX84-C5V1/DG/B4VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C5V1/DG/B4VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C5V1/DG/B4VL?
BZX84-C5V1/DG/B4VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C5V1/DG/B4VL 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 BZX84-C5V1/DG/B4VL?
For technical support, including BZX84-C5V1/DG/B4VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C5V1/DG/B4VL requirements.
6.How does Aetrix verify that BZX84-C5V1/DG/B4VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C5V1/DG/B4VL 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 BZX84-C5V1/DG/B4VL meets industry standards.
7.What is the process for return or replacement of BZX84-C5V1/DG/B4VL?
All BZX84-C5V1/DG/B4VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C5V1/DG/B4VL, 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 BZX84-C5V1/DG/B4VL part is unused and in its original packaging.
Return procedure for BZX84-C5V1/DG/B4VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C5V1/DG/B4VL Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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