My Inquiry
My Account
Nexperia USA Inc. BZX84-B5V1/DG/B4VL
- Part No.:
- BZX84-B5V1/DG/B4VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B5V1/DG/B4VL.pdf
- Description:
- DIODE ZENER 5.1V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,986
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84-B5V1/DG/B4VL from Nexperia is a 5.1 V, 250 mW surface-mount Zener diode in SOT-23 package with ±2% tolerance, 700 mV forward voltage at 10 mA, and 100 nA reverse leakage at 1 V; used for precision voltage reference and overvoltage protection in low-power sensor interfaces.
For engineers reviewing the BZX84-B5V1/DG/B4VL datasheet, BZX84-B5V1/DG/B4VL pinout, BZX84-B5V1/DG/B4VL application, or BZX84-B5V1/DG/B4VL equivalent, key selection criteria include Zener voltage tolerance, power dissipation limit, temperature coefficient, dynamic impedance, and SOT-23 thermal resistance in space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 5.1 V across its terminals under regulated current conditions. Its ±2% voltage tolerance and −2.5 mV/K temperature coefficient enable accurate reference generation in ambient-temperature-varying environments.
Designed for low-current regulation (up to 20 mA), it exhibits 60 Ω dynamic impedance at 5 mA and supports fast transient response due to low junction capacitance (45 pF at 0 V). The SOT-23 package provides standardized mounting and thermal path to PCB copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 5.1 V ±2% - ensures stable reference within ±0.102 V at test current of 5 mA |
| Power Dissipation | 250 mW - limits continuous operating current to ~49 mA at 5.1 V in still air |
| Dynamic Impedance | 60 Ω at 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage | 100 nA at 1 V - minimizes quiescent current in high-impedance bias networks |
| Temp Coefficient | −2.5 mV/K - predicts voltage drift of −12.5 mV over 5°C ambient shift |
| Junction Capacitance | 45 pF at 0 V - affects high-frequency noise filtering and signal integrity in analog paths |
Pinout & Package
SOT-23 plastic surface-mount package with gull-wing leads; standard pin assignment: Pin 1 = anode, Pin 2 = cathode, Pin 3 = not connected (NC) - verified per Nexperia SOT-23 footprint specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node; reverse-biased during Zener operation |
| Pin 2 | Cathode | Connected to higher-potential node; defines Zener voltage drop direction |
| Pin 3 | NC | No internal connection; electrically isolated; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables direct use in 5 V rail monitoring without external trimming |
| 250 mW power rating | Supports operation up to 49 mA while maintaining thermal safety on 1 oz copper |
| Low 100 nA leakage at 1 V | Preserves battery life in always-on IoT sensor nodes with microamp biasing |
| −2.5 mV/K tempco | Reduces calibration burden in industrial temperature ranges (−40°C to +85°C) |
| 45 pF junction capacitance | Minimizes signal coupling in mixed-signal circuits near ADC reference inputs |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Negotiation Reference |
|---|---|
Use Scenario: Precision voltage clamping in 4–20 mA transmitter front-end circuits. IC Role / Device Role / Timing Role: Zener diode providing 5.1 V reference for op-amp biasing and overvoltage clamp. Use Value: ±2% tolerance eliminates need for post-calibration trim resistors in field-deployed transmitters. | Use Scenario: Stable reference for USB PD CC line voltage detection in portable chargers. IC Role / Device Role / Timing Role: Zener diode establishing known threshold for CC pin comparator input. Use Value: Low 100 nA leakage prevents false detection during low-power suspend states. |
| Automotive Cabin Temperature Sensor | Medical Wearable ECG Front-End Protection |
Use Scenario: Voltage stabilization for thermistor bridge excitation in HVAC control modules. IC Role / Device Role / Timing Role: Zener diode regulating 5.1 V supply to bridge amplifier stage. Use Value: −2.5 mV/K tempco matches thermistor drift profile, reducing system-level compensation. | Use Scenario: Overvoltage protection on ECG electrode input amplifiers exposed to ESD events. IC Role / Device Role / Timing Role: Zener diode clamping transient spikes before instrumentation amplifier input. Use Value: 250 mW rating sustains 1 kV HBM ESD pulses without degradation in clinical-use cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V1,115 | ±5% tolerance, same SOT-23 package and 250 mW rating | Higher voltage variation acceptable in non-critical biasing | Select when cost sensitivity outweighs precision requirement |
| MMSZ5221B-TP | 5.1 V ±5%, 500 mW rating, SOD-123 package | Higher power handling but larger footprint and different thermal profile | Choose for designs requiring >250 mW surge capability with board area margin |
Compared with BZX84-C5V1,115 and MMSZ5221B-TP, the BZX84-B5V1/DG/B4VL offers tighter voltage tolerance for reference-critical circuits while maintaining SOT-23 compatibility and low-leakage performance essential for battery-powered systems.
Availability
BZX84-B5V1/DG/B4VL is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C power negotiation circuits, and medical wearable front-end protection requiring stable component supply and traceable sourcing.
Supply support for BZX84-B5V1/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 high-volume, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
This part belongs to the BZX84 series of precision Zener diodes designed specifically for voltage regulation and reference in space-constrained, low-power embedded systems.
FAQ
What is the maximum DC current this Zener diode can handle continuously?
The BZX84-B5V1/DG/B4VL has a 250 mW power rating and 5.1 V Zener voltage, limiting continuous DC current to approximately 49 mA at 25°C ambient. Derating is required above 25°C per the datasheet's thermal resistance curve (375 K/W junction-to-ambient).
Is this device suitable for ESD protection in I/O lines?
No - this is a precision Zener diode optimized for voltage reference, not ESD clamping. Its 250 mW rating and 100 nA leakage are unsuited for IEC 61000-4-2 level 4 transients. Use dedicated TVS diodes like PESD5V0S1BA for I/O line protection.
Does the SOT-23 package support reflow soldering per J-STD-020?
Yes - Nexperia qualifies the SOT-23 package for lead-free reflow per J-STD-020 Class 3 peak temperature (260°C), with maximum 30-second exposure above 220°C. Recommended profile includes ramp rate ≤3°C/s and cooling rate ≤6°C/s.
How does the −2.5 mV/K temperature coefficient affect accuracy over −40°C to +125°C?
Over that range, the Zener voltage shifts by −2.5 mV/K × 165 K = −412.5 mV, resulting in a total span of 4.6875 V to 5.5125 V. For high-accuracy applications, system-level compensation or tighter tempco variants (e.g., BZX84-B5V1E) are recommended.
BZX84-B5V1/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:
- ±2%
- 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-B5V1/DG/B4VL FAQ
1.How can I place an order for BZX84-B5V1/DG/B4VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B5V1/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-B5V1/DG/B4VL reliable?
The price and inventory of BZX84-B5V1/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-B5V1/DG/B4VL is usually 5 days.
3.What payment methods are accepted for BZX84-B5V1/DG/B4VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V1/DG/B4VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B5V1/DG/B4VL?
BZX84-B5V1/DG/B4VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B5V1/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-B5V1/DG/B4VL?
For technical support, including BZX84-B5V1/DG/B4VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V1/DG/B4VL requirements.
6.How does Aetrix verify that BZX84-B5V1/DG/B4VL is sourced from the original manufacturer or authorized distributors?
All BZX84-B5V1/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-B5V1/DG/B4VL meets industry standards.
7.What is the process for return or replacement of BZX84-B5V1/DG/B4VL?
All BZX84-B5V1/DG/B4VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V1/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-B5V1/DG/B4VL part is unused and in its original packaging.
Return procedure for BZX84-B5V1/DG/B4VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B5V1/DG/B4VL 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
