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Nexperia USA Inc. BZX84-B5V1,235
- Part No.:
- BZX84-B5V1,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B5V1,235.pdf
- Description:
- DIODE ZENER 5.1V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,363
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Product details
Overview
BZX84-B5V1,235 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-power voltage reference and clamping in signal conditioning, power supply feedback, and overvoltage protection circuits. It delivers 5.1 V nominal breakdown voltage at 5 mA, with 480 Ω max differential resistance, 2 µA max reverse current at 1 V, and −2.7 to +1.2 mV/K temperature coefficient.
For engineers reviewing the BZX84-B5V1,235 datasheet, BZX84-B5V1,235 pinout, BZX84-B5V1,235 application, or BZX84-B5V1,235 equivalent, this page provides verified electrical parameters, thermal behavior, SOT23 terminal mapping, real-world use cases in analog sensing and LDO feedback, and validated alternative parts with documented tolerance and temperature coefficient differences.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its cathode-anode terminals under varying load and temperature conditions. Its ±2 % tolerance and specified 5.1 V nominal Zener voltage at IZ = 5 mA enable predictable regulation in low-current (<200 mA) applications where tight voltage accuracy is required without active circuitry.
The device exhibits a non-repetitive peak reverse power dissipation of 40 W (100 µs pulse), junction-to-ambient thermal resistance of 500 K/W on FR4 PCB, and forward voltage ≤0.9 V at 10 mA - confirming suitability for bidirectional transient suppression and low-drop rectification roles alongside primary regulation function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.00 V to 5.20 V at IZ = 5 mA - defines stable regulation point for feedback loops and reference generation |
| Differential Resistance (rdif) | ≤480 Ω - determines output impedance and voltage deviation under load current changes |
| Reverse Current (IR) | ≤2 µA at VR = 1 V - ensures minimal leakage in high-impedance bias networks |
| Temperature Coefficient (SZ) | −2.7 to +1.2 mV/K - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs - supports transient surge suppression in ESD-critical interfaces |
| Junction Temperature (Tj) | −55 °C to +150 °C - confirms operational reliability across industrial ambient ranges |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.9 mm × 1.3 mm footprint, 1.1 mm height, and tin-plated copper terminations compatible with reflow and wave soldering per IPC-7095.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in regulation path |
| 2 | Not Connected (n.c.) | Internally unconnected lead; must remain floating or grounded per layout guidelines |
| 3 | Cathode (K) | Reverse-biased terminal; connects to regulated output or reference node |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-regulation trimming in 5 V rail monitoring |
| Low differential resistance (≤480 Ω) | Minimizes output voltage shift under ±1 mA load variation, improving stability in op-amp reference buffers |
| 150 °C max junction temperature | Supports operation in enclosed industrial enclosures without derating below full 250 mW rating |
| Non-repetitive 40 W surge capability | Provides single-event transient immunity up to 6.3 A peak current (at 5.1 V), suitable for I/O line clamping |
| SOT23 package compatibility | Enables high-density placement on 0.5 mm pitch PCBs with standard reflow profiles per J-STD-020 |
Applications
| Power Supply Feedback | Analog Sensor Biasing |
|---|---|
Use Scenario: Stabilizing output voltage of adjustable LDOs and switching regulators via resistor divider feedback network. IC Role / Device Role / Timing Role: Provides precise 5.1 V reference point for error amplifier comparison. Use Value: Enables ±1 % output regulation accuracy without external DAC or trim potentiometer. |
Use Scenario: Supplying stable excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in measurement front-ends. IC Role / Device Role / Timing Role: Acts as low-noise, low-drift voltage source replacing higher-cost bandgap references. Use Value: Reduces sensor offset drift by limiting reference voltage variation to <±0.5 mV/°C over −40 to +85 °C. |
| Overvoltage Clamp | Signal Level Translation |
Use Scenario: Protecting microcontroller GPIO pins from accidental 12 V transients on industrial control lines. IC Role / Device Role / Timing Role: Shunts excess energy above 5.1 V to ground during fault events. Use Value: Limits pin voltage to safe levels within 100 ns, preventing latch-up or oxide damage. |
Use Scenario: Converting 3.3 V logic signals to 5 V-compatible levels for legacy peripheral interfacing. IC Role / Device Role / Timing Role: Functions as passive level shifter using forward conduction and Zener clamping. Use Value: Achieves sub-10 ns propagation delay with no active components or supply rails required. |
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 MMBZ5222BS | ±5 % tolerance; 4.8–5.2 V range; 17 Ω typical rdif; 100 nA IR at 1 V | Higher leakage sensitivity limits use in ultra-low-power battery monitoring | Select when cost priority outweighs voltage accuracy and thermal stability requirements |
| Vishay BZX84-C5V1 | ±5 % tolerance; 4.8–5.4 V range; 600 Ω max rdif; 10 µA IR at 1 V | Wider voltage spread increases risk of false triggering in tight-tolerance feedback paths | Choose only for non-critical clamping where ±5 % regulation is acceptable |
Compared with BZX84-B5V1,235, MMBZ5222BS offers lower dynamic impedance but poorer voltage accuracy, while BZX84-C5V1 trades tighter thermal coefficient for wider tolerance - making the BZX84-B5V1,235 optimal for applications needing balanced precision, stability, and surge robustness.
Availability
BZX84-B5V1,235 is available at Aetrix Electronics and suitable for power supply feedback, analog sensor biasing, overvoltage clamp, and signal level translation requiring stable component supply across industrial, test equipment, and embedded control designs.
Supply support for BZX84-B5V1,235 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions optimized for efficiency, size, and cost in mass-market electronics.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage reference and clamping in space-constrained, thermally demanding applications such as portable instrumentation and automotive body electronics.
FAQ
What is the maximum continuous forward current for BZX84-B5V1,235?
The absolute maximum forward current is 200 mA per the datasheet limiting values table. However, sustained operation above 10 mA requires thermal derating due to the 250 mW total power dissipation limit and 500 K/W junction-to-ambient thermal resistance - practical design guidance caps DC forward current at 25 mA for reliable long-term operation on standard FR4 PCBs.
Can BZX84-B5V1,235 be used in place of a 5.0 V Zener diode?
Yes, but with attention to tolerance: its 5.00–5.20 V range at 5 mA means it will regulate at nominally higher voltage than a true 5.0 V part. In feedback loops, this shifts setpoint by +2 %; in clamping, it raises trip threshold. For exact 5.0 V behavior, consider BZX84-A5V0 (±1 %, 4.95–5.05 V) if available.
How does the not-connected (n.c.) pin affect PCB layout?
Pin 2 is internally unconnected and must not be soldered to any net. Layout best practice isolates it from copper pours and avoids routing traces beneath it. Leaving it floating prevents parasitic coupling; grounding it introduces unnecessary capacitance that may degrade high-frequency clamping response above 10 MHz.
Is BZX84-B5V1,235 qualified for automotive applications?
No - the Rev. 7 datasheet explicitly states these parts are non-automotive qualified. They lack AEC-Q101 stress testing and automotive-grade process controls. For automotive use, Nexperia offers the BZX84-Q series (e.g., BZX84-Q5V1), which undergoes extended temperature cycling, humidity testing, and failure analysis per AEC standards.
BZX84-B5V1,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-B5V1,235 FAQ
1.How can I place an order for BZX84-B5V1,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B5V1,235 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-B5V1,235 reliable?
The price and inventory of BZX84-B5V1,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B5V1,235 is usually 5 days.
3.What payment methods are accepted for BZX84-B5V1,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V1,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B5V1,235?
BZX84-B5V1,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B5V1,235 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-B5V1,235?
For technical support, including BZX84-B5V1,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V1,235 requirements.
6.How does Aetrix verify that BZX84-B5V1,235 is sourced from the original manufacturer or authorized distributors?
All BZX84-B5V1,235 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-B5V1,235 meets industry standards.
7.What is the process for return or replacement of BZX84-B5V1,235?
All BZX84-B5V1,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V1,235, 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-B5V1,235 part is unused and in its original packaging.
Return procedure for BZX84-B5V1,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B5V1,235 Tags
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MMBZ5240B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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