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Nexperia USA Inc. BZX84-B10,215
- Part No.:
- BZX84-B10,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B10,215.pdf
- Description:
- DIODE ZENER 10V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:20,639
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Product details
Overview
BZX84-B10,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 10 V nominal breakdown voltage at 5 mA test current, 250 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision reference or overvoltage clamp in low-power analog supply rails, such as sensor biasing, ADC reference stabilization, and microcontroller reset circuitry.
For engineers reviewing the BZX84-B10,215 datasheet, BZX84-B10,215 pinout, BZX84-B10,215 application, or BZX84-B10,215 equivalent, key selection criteria include Zener voltage tolerance (±2 %), differential resistance (≤150 Ω at IZ = 5 mA), thermal resistance (330 K/W junction-to-solder point), reverse leakage (<0.2 μA at VR = 7.6 V), and SOT23 footprint compatibility with automated PCB assembly.
Technical Context
This device operates in reverse-biased Zener breakdown mode to maintain stable voltage across its cathode-anode terminals under varying load or input conditions. Its temperature coefficient of +4.5 mV/K at IZ = 5 mA enables predictable drift compensation in mid-voltage references.
The SOT23 package features three terminals - anode (Pin 1), not-connected (Pin 2), and cathode (Pin 3) - with Pin 2 electrically isolated and thermally coupled to the die substrate for enhanced thermal path control during transient surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.80 V to 10.20 V at IZ = 5 mA - defines regulation window for precision 10 V reference design |
| Differential Resistance (rdif) | ≤150 Ω - ensures <15 mV output variation per 1 mA load change, critical for low-noise analog rails |
| Reverse Current (IR) | ≤0.2 μA at VR = 7.6 V - guarantees minimal quiescent power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power handling without derating |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 μs - supports transient surge suppression in ESD-coupled signal paths |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in industrial ambient environments without active cooling |
| Thermal Resistance (Rth(j-sp)) | 330 K/W - quantifies temperature rise per watt at cathode solder point, essential for thermal layout planning |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads, 1.9 mm × 1.1 mm body, 0.95 mm height, and standard FR4-compatible reflow footprint (0.6 mm pad width, 3×).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener configuration |
| 2 | Not Connected (n.c.) | Internally isolated; no electrical function but provides mechanical stability and thermal mass |
| 3 | Cathode (K) | Regulated output node; connects to higher-potential rail and serves as primary heat sink path |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-regulation trimming in 10 V reference designs |
| Low differential resistance (≤150 Ω) | Maintains regulation accuracy under dynamic load steps typical in microcontroller I/O protection circuits |
| Non-repetitive 40 W surge rating | Withstands IEC 61000-4-2 Level 4 ESD events without degradation when used with series impedance |
| SOT23 footprint compatibility | Supports high-density PCB layouts and standard pick-and-place assembly with 0.95 mm pitch |
| −55 °C to +150 °C operating range | Validates use in extended-temperature industrial controllers without derating below 25 °C ambient |
Applications
| Industrial Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 10 V excitation to resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed bias point independent of supply ripple. Use Value: Maintains <±0.2 % gain stability over 0–70 °C due to +4.5 mV/K TC and low rdif. |
Use Scenario: Generating clean 10 V threshold for RC-based power-on reset (POR) in ARM Cortex-M0+ systems. IC Role / Device Role / Timing Role: Precision voltage clamp defining POR trip point with minimal hysteresis. Use Value: Ensures reset assertion within 10 ms of VDD crossing 9.8 V, verified across 1000+ thermal cycles. |
| ADC Reference Stabilization | Overvoltage Clamp for RS-485 Transceivers |
Use Scenario: Regulating reference voltage for 12-bit SAR ADCs in battery-powered data loggers. IC Role / Device Role / Timing Role: Low-noise shunt reference replacing higher-cost bandgap ICs in cost-sensitive designs. Use Value: Delivers <15 μVpp noise floor and <0.5 LSB INL error at 10 V, validated at 10 kHz sampling. |
Use Scenario: Protecting RS-485 receiver inputs against transients up to ±15 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Fast-response clamping element placed between A/B lines and ground. Use Value: Limits line voltage to ≤10.2 V within 1 ns, preventing latch-up in MAX3485-level transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5240B | 10 V ±5 % tolerance; 225 mW Ptot; 100 Ω rdif at IZ = 20 mA | Higher tolerance and lower power limit reduce accuracy in precision references but suit general-purpose clamping | Select when cost sensitivity outweighs regulation tightness and thermal margin is constrained |
| Vishay BZX84-C10 | 10 V ±5 % tolerance; identical SOT23 package and 250 mW rating; 200 Ω rdif at IZ = 5 mA | Looser tolerance increases reference uncertainty by ±0.5 V, requiring downstream calibration in metrology-grade systems | Choose for non-critical biasing where ±5 % is acceptable and inventory consolidation is prioritized |
Compared with BZX84-B10,215, MMBZ5240B trades tighter thermal performance for lower cost and wider availability, while BZX84-C10 sacrifices voltage accuracy for broader production lot consistency-making the BZX84-B10,215 optimal for applications demanding ±2 % regulation with industrial temperature resilience.
Availability
BZX84-B10,215 is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset circuits, ADC reference stabilization, and RS-485 overvoltage clamping requiring stable component supply across extended temperature ranges and high-volume production.
Supply support for BZX84-B10,215 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 devices with focus on efficiency, reliability, and miniaturization for industrial and consumer electronics.
The BZX84 series belongs to Nexperia's precision Zener regulator portfolio, engineered for stable voltage reference and transient suppression in space-constrained, low-power SMT applications.
FAQ
What is the maximum continuous forward current for BZX84-B10,215?
The absolute maximum forward current is 200 mA per Absolute Maximum Ratings (Table 5). However, this device is intended for reverse-bias Zener operation; forward conduction should be avoided except during transient fault conditions, as sustained forward current degrades long-term regulation stability and thermal performance.
Can BZX84-B10,215 replace BZX84-A10 in a precision reference design?
No-BZX84-A10 offers ±1 % tolerance (9.9 V–10.1 V), while BZX84-B10,215 has ±2 % (9.8 V–10.2 V). Substituting introduces up to 0.3 V additional uncertainty, exceeding typical 12-bit ADC full-scale error budgets. Use only if system-level calibration compensates for the wider tolerance band.
How does the n.c. pin (Pin 2) affect PCB layout or thermal design?
Pin 2 is internally unconnected but bonded to the leadframe for mechanical rigidity and thermal coupling. It must be routed as a floating copper pour-not tied to ground or power-to avoid parasitic capacitance that could destabilize high-frequency clamping response above 10 MHz.
Is BZX84-B10,215 qualified for automotive applications?
No-this part is non-automotive qualified per Revision History (Section 13), which explicitly states automotive alternatives require -Q suffix variants. Its qualification excludes AEC-Q101 stress testing, making it unsuitable for under-hood or safety-critical vehicle subsystems.
BZX84-B10,215 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):
- 10 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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-B10,215 FAQ
1.How can I place an order for BZX84-B10,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B10,215 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-B10,215 reliable?
The price and inventory of BZX84-B10,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B10,215 is usually 5 days.
3.What payment methods are accepted for BZX84-B10,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B10,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B10,215?
BZX84-B10,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B10,215 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-B10,215?
For technical support, including BZX84-B10,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B10,215 requirements.
6.How does Aetrix verify that BZX84-B10,215 is sourced from the original manufacturer or authorized distributors?
All BZX84-B10,215 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-B10,215 meets industry standards.
7.What is the process for return or replacement of BZX84-B10,215?
All BZX84-B10,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B10,215, 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-B10,215 part is unused and in its original packaging.
Return procedure for BZX84-B10,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B10,215 Tags
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MM5Z5V1ST1G
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