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onsemi BZX84C15_S00Z
- Part No.:
- BZX84C15_S00Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C15_S00Z.pdf
- Description:
- DIODE ZENER 14.8V 550MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,375
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Product details
Overview
BZX84C15_S00Z from ON Semiconductor is a 15 V ±5% tolerance surface-mount Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C ambient, with typical zener impedance of 20 Ω at 5 mA and reverse leakage current ≤50 nA at 10.5 V, used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84C15_S00Z datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance (±5%), thermal resistance (465°C/W), junction temperature range (–55°C to +150°C), and low-capacitance operation (110 pF at 0 V) for stable reference performance in noise-sensitive signal conditioning paths.
Technical Context
The BZX84C15_S00Z operates as a silicon planar epitaxial Zener diode optimized for voltage regulation and waveform clamping in DC bias networks. Its design centers on stable breakdown behavior under reverse-biased conditions with controlled temperature coefficient (+9.2 mV/°C at 5 mA) and low dynamic impedance across its specified test current range (1 mA to 20 mA).
It is characterized for use in FR-4 PCB mounting with defined thermal path (Junction-to-Lead = 220°C/W), supports repetitive peak working current up to 250 mA, and maintains specified electrical parameters only within its validated operating junction temperature range (–55°C to +150°C) and storage limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.8 V min / 15.6 V max at IZ = 5 mA - defines regulated output voltage window for reference stability |
| Zener Impedance (ZZ) | 20 Ω max at IZ = 5 mA - determines load regulation error and ripple rejection capability |
| Power Dissipation (PD) | 250 mW at TA = 25°C - sets maximum continuous power handling without derating |
| Reverse Leakage (IR) | ≤50 nA at VR = 10.5 V - ensures minimal quiescent current in high-impedance bias networks |
| Junction Temp Range (TJ) | –55°C to +150°C - enables operation in automotive under-hood and industrial control environments |
| Capacitance (CJ) | 110 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise coupling in RF-adjacent circuits |
Pinout & Package
Package: SOT-23 (3-pin plastic surface-mount package, cathode marked by band). Pin configuration confirmed per ON Semiconductor standard SOT-23 Zener diode layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-bias regulation configuration |
| Cathode | Zener breakdown terminal | Connected to regulated voltage node; primary heat path to PCB via cathode lead |
| No-Connect | Unused internal connection | Not electrically bonded; no external circuit function or thermal contribution |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables tight reference accuracy without post-production trimming in cost-sensitive designs |
| Low temperature coefficient (+9.2 mV/°C) | Minimizes drift-induced error in temperature-varying environments like motor control feedback |
| 110 pF junction capacitance | Reduces high-frequency coupling into sensitive analog front-ends and ADC reference paths |
| 250 mW power rating in SOT-23 | Supports higher current regulation than standard 200 mW Zeners while maintaining compact footprint |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode providing precise 15 V reference for op-amp biasing and ADC reference scaling. Use Value: Maintains <±0.5% full-scale error over –40°C to +85°C due to low tempco and stable ZZ. | Use Scenario: Clamping transient surges on USB VBUS line during hot-plug events in embedded host controllers. IC Role / Device Role / Timing Role: Shunt regulator diverting ESD and inductive spikes above 15 V to ground before reaching USB PHY. Use Value: Limits clamp voltage to ≤15.6 V with <50 nA leakage, preserving bus integrity during idle states. |
| Automotive Cabin Control Panel | IoT Node Battery Monitoring |
Use Scenario: Regulating microcontroller I/O supply rail in HVAC control head exposed to 12 V battery transients. IC Role / Device Role / Timing Role: Standby-mode voltage clamp protecting 3.3 V LDO input against load-dump spikes. Use Value: Withstands 250 mA peak surge current and operates reliably at +105°C junction temperature. | Use Scenario: Providing stable reference for lithium-ion cell voltage measurement in BLE-enabled asset trackers. IC Role / Device Role / Timing Role: Precision shunt reference enabling 12-bit ADC resolution down to 10 mV LSB steps. Use Value: Delivers <0.1% long-term drift and 20 Ω dynamic impedance for repeatable battery state-of-charge reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245B-7-F | Zener voltage 15 V ±5%, PD = 350 mW, ZZ = 17 Ω @ 5 mA, SOT-23 package | Higher power rating allows greater surge energy absorption but requires thermal validation at >25°C ambient | Select when higher pulse robustness is needed and board layout permits marginally higher power dissipation |
| BZX84-C15,115 | Same Zener voltage and tolerance, identical SOT-23 package, PD = 250 mW, ZZ = 20 Ω @ 5 mA, manufactured by Nexperia | Identical electrical specs and footprint; differs only in traceability documentation and AEC-Q200 qualification status | Select when dual-sourcing or automotive-grade documentation is required without changing schematic or layout |
Compared with MMBZ5245B-7-F and BZX84-C15,115, the BZX84C15_S00Z offers identical regulation performance in standard industrial temperature range but with ON Semiconductor's documented thermal resistance profile (RJA = 465°C/W) and legacy design support for legacy systems.
Availability
BZX84C15_S00Z is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB power protection circuits, and automotive cabin control modules requiring stable component supply with consistent parametric performance across production lots.
Supply support for BZX84C15_S00Z 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
ON Semiconductor is a global semiconductor supplier delivering energy-efficient power and signal management solutions for automotive, industrial, cloud computing, and IoT applications.
The BZX84 series belongs to ON Semiconductor's discrete Zener diode product line, engineered for precision voltage reference and transient suppression in space-constrained, thermally demanding PCB layouts.
FAQ
What is the nominal zener voltage and tolerance of the BZX84C15_S00Z?
The BZX84C15_S00Z has a nominal zener voltage of 15 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 13.8 V and 15.6 V when tested at 5 mA zener current and 25°C ambient temperature. This tolerance is marked as "C" in the device family designation and is verified per ON Semiconductor's Rev. 1.10 datasheet.
Can the BZX84C15_S00Z be used in automotive under-hood applications?
Yes, the BZX84C15_S00Z supports junction temperatures from –55°C to +150°C and is qualified for industrial-grade operation. While not AEC-Q200 certified out-of-box, its thermal and electrical specifications meet requirements for non-safety-critical under-hood functions such as sensor biasing and MCU voltage clamping when mounted on appropriate FR-4 PCBs with thermal relief.
What is the maximum reverse leakage current for the BZX84C15_S00Z?
The maximum reverse leakage current (IR) for the BZX84C15_S00Z is 50 nA at a reverse voltage (VR) of 10.5 V and ambient temperature of 25°C. This low leakage ensures minimal loading on high-impedance reference nodes and preserves accuracy in battery-powered sensing applications.
How does the zener impedance of the BZX84C15_S00Z affect regulation performance?
The BZX84C15_S00Z exhibits a typical zener impedance (ZZ) of 20 Ω at 5 mA, which directly determines how much the output voltage varies with changes in load current. Lower ZZ yields tighter regulation-this value enables <±15 mV deviation for ±0.3 mA load shifts, making it suitable for precision analog references where stability is critical.
Is the BZX84C15_S00Z compatible with reflow soldering processes?
Yes, the BZX84C15_S00Z in SOT-23 package is rated for standard lead-free reflow profiles per J-STD-020. Its maximum peak temperature rating is 260°C for 30 seconds, and moisture sensitivity level (MSL) is 1-meaning it can be stored indefinitely at ≤30°C/85% RH without baking prior to assembly.
BZX84C15_S00Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 14.8 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C15_S00Z FAQ
1.How can I place an order for BZX84C15_S00Z through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C15_S00Z 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 BZX84C15_S00Z reliable?
The price and inventory of BZX84C15_S00Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C15_S00Z is usually 5 days.
3.What payment methods are accepted for BZX84C15_S00Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C15_S00Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C15_S00Z?
BZX84C15_S00Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C15_S00Z 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 BZX84C15_S00Z?
For technical support, including BZX84C15_S00Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C15_S00Z requirements.
6.How does Aetrix verify that BZX84C15_S00Z is sourced from the original manufacturer or authorized distributors?
All BZX84C15_S00Z 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 BZX84C15_S00Z meets industry standards.
7.What is the process for return or replacement of BZX84C15_S00Z?
All BZX84C15_S00Z units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C15_S00Z, 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 BZX84C15_S00Z part is unused and in its original packaging.
Return procedure for BZX84C15_S00Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C15_S00Z Tags
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