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Nexperia USA Inc. BZX84-C15/DG/B3,23
- Part No.:
- BZX84-C15/DG/B3,23
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C15/DG/B3,23.pdf
- Description:
- DIODE ZENER 14.7V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,184
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Product details
Overview
BZX84-C15/DG/B3,23 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 15 V nominal breakdown at 5 mA, with 250 mW total power dissipation and 200 mA maximum forward current. It provides stable reference voltage in low-power linear regulators, overvoltage protection circuits, and biasing networks for analog signal conditioning.
For engineers reviewing the BZX84-C15/DG/B3,23 datasheet, BZX84-C15/DG/B3,23 pinout, BZX84-C15/DG/B3,23 application, or BZX84-C15/DG/B3,23 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤200 Ω at IZ = 5 mA), non-repetitive peak reverse power (40 W), thermal resistance (330 K/W junction-to-solder point), and SOT23 footprint compatibility with automated assembly.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining a stable 15 V output across its cathode-anode terminals when reverse-biased above its breakdown threshold. Its Zener mechanism delivers predictable regulation under DC and transient conditions, with temperature coefficient of +9.2 to +13.0 mV/K at IZ = 5 mA.
Designed for surface-mount integration on FR4 PCBs with single-sided 70 µm copper, it relies on thermal conduction through the cathode tab (Rth(j-sp) = 330 K/W) rather than ambient convection (Rth(j-a) = 500 K/W), making solder joint integrity critical for sustained power handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 13.8 V to 15.6 V at IZ = 5 mA - defines usable regulation band for precision reference applications |
| Differential Resistance rdif | ≤200 Ω - determines output impedance and load regulation error under varying current |
| Reverse Current IR | ≤0.05 μA at VR = 11.4 V - ensures minimal leakage in high-impedance bias networks |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - supports low-loss anode-side switching or clamping functions |
| Non-repetitive Peak Power | 40 W for tp ≤ 100 μs - enables transient surge suppression without device failure |
| Junction Temperature | −55 °C to +150 °C - validates operation in industrial ambient environments |
| Total Power Dissipation | 250 mW at Tamb ≤ 25 °C - sets continuous DC power limit on standard PCB layout |
Pinout & Package
Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with standard footprint per Figure 12 (reflow) and Figure 13 (wave soldering); dimensions 2.9 mm × 1.3 mm × 1.0 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to lower-potential node in Zener configuration |
| 2 | Not Connected (n.c.) | Internal die bond wire stub; electrically isolated and must remain unconnected on PCB |
| 3 | Cathode (K) | Regulated output node; ties to higher-potential rail and serves as thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Supports cost-sensitive designs where tight regulation is secondary to component count reduction |
| 250 mW power rating | Enables use in space-constrained consumer and industrial PCBs without heatsinking |
| SOT23 package compatibility | Ensures compatibility with standard pick-and-place equipment and reflow profiles |
| 40 W non-repetitive peak power | Provides robustness against ESD and line transients in unprotected input stages |
| 150 °C max junction temperature | Permits operation in enclosed enclosures or near heat-generating components |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Generating stable 15 V reference for op-amp biasing or ADC reference in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Shunt regulator providing fixed voltage node independent of load current variation up to 20 mA. Use Value: Maintains <±1 % output stability over −40 °C to +85 °C ambient due to known temperature coefficient (+9.2 to +13.0 mV/K). | Use Scenario: Protecting microcontroller GPIO pins from 24 V field wiring surges in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping induced spikes to ≤15.6 V before reaching sensitive inputs. Use Value: Absorbs 40 W for 100 μs without degradation, limiting peak stress to downstream logic. |
| Signal Level Shifting | Current Source Bias |
Use Scenario: Converting 3.3 V logic signals to 15 V levels for driving legacy analog instrumentation inputs. IC Role / Device Role / Timing Role: Passive level translator using Zener drop in series with pull-up resistor. Use Value: Delivers accurate 15 V offset with <200 Ω dynamic impedance, minimizing signal distortion at 10 kHz bandwidth. | Use Scenario: Setting precise bias current for JFET amplifier stages in audio preamplifier front-ends. IC Role / Device Role / Timing Role: Stable voltage reference defining emitter degeneration resistor voltage drop. Use Value: Enables <0.5 % current variation across temperature via matched Zener and resistor TC tracking. |
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 MMBZ5245BS | Same 15 V nominal, ±5 % tolerance, but rated 350 mW and uses SOT-23 package with identical pinout | Higher power margin allows extended DC operation at 150 °C ambient without derating | Select when thermal headroom is constrained and board-level airflow is limited |
| Vishay BZX84-C15-TP | Identical electrical specs and SOT23 package, but marked with "15" instead of "Y4%" and qualified to AEC-Q200 Grade 3 | Automotive-qualified version suitable for under-hood temperature cycling and vibration requirements | Select only for automotive programs requiring formal qualification documentation |
Compared with MMBZ5245BS, BZX84-C15/DG/B3,23 offers tighter production lot consistency per Nexperia's E24 binning but lower continuous power; versus BZX84-C15-TP, it lacks automotive qualification yet maintains identical regulation performance and footprint for industrial use.
Availability
BZX84-C15/DG/B3,23 is available at Aetrix Electronics and suitable for industrial control systems, consumer power adapters, and test equipment requiring stable component supply with full traceability and no minimum order quantity.
Supply support for BZX84-C15/DG/B3,23 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, with leadership in automotive-qualified and industrial-grade components.
The BZX84 series belongs to Nexperia's precision Zener regulator product line, engineered for cost-effective voltage reference and protection in space-constrained, high-yield manufacturing environments.
FAQ
What is the exact Zener voltage range for BZX84-C15/DG/B3,23 at 5 mA test current?
The guaranteed Zener voltage range is 13.8 V to 15.6 V at IZ = 5 mA and Tj = 25 °C, per Table 8 of the Rev. 7 datasheet. This ±5 % tolerance reflects the "C" grade binning and is verified during final test screening.
Can BZX84-C15/DG/B3,23 be used in place of a 1N4744A?
No - the 1N4744A is a 14 V, 1 W through-hole Zener with TO-204AA (DO-41) package and ±5 % tolerance, while BZX84-C15/DG/B3,23 is a 15 V, 250 mW SOT23 device. Voltage mismatch (14 V vs. 15 V), power rating, and package incompatibility prevent direct substitution without circuit redesign.
Is Pin 2 truly unconnected, or does it serve a mechanical function?
Pin 2 is electrically unconnected (n.c.) per Table 2 and confirmed by internal die photos in Nexperia's package documentation. It serves only as a mechanical lead frame stub for structural rigidity during molding and handling - no PCB trace or pad should connect to it.
How does thermal resistance affect maximum continuous power at 70 °C ambient?
At Tamb = 70 °C, derated power is calculated as Ptot = (Tjmax − Tamb) / Rth(j-a) = (150 − 70) / 500 = 160 mW. However, Rth(j-sp) = 330 K/W applies when soldered properly; using that yields 242 mW - confirming the need for robust cathode thermal land design to approach rated 250 mW.
BZX84-C15/DG/B3,23 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:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 14.7 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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-C15/DG/B3,23 FAQ
1.How can I place an order for BZX84-C15/DG/B3,23 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C15/DG/B3,23 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-C15/DG/B3,23 reliable?
The price and inventory of BZX84-C15/DG/B3,23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C15/DG/B3,23 is usually 5 days.
3.What payment methods are accepted for BZX84-C15/DG/B3,23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C15/DG/B3,23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C15/DG/B3,23?
BZX84-C15/DG/B3,23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C15/DG/B3,23 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-C15/DG/B3,23?
For technical support, including BZX84-C15/DG/B3,23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C15/DG/B3,23 requirements.
6.How does Aetrix verify that BZX84-C15/DG/B3,23 is sourced from the original manufacturer or authorized distributors?
All BZX84-C15/DG/B3,23 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-C15/DG/B3,23 meets industry standards.
7.What is the process for return or replacement of BZX84-C15/DG/B3,23?
All BZX84-C15/DG/B3,23 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C15/DG/B3,23, 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-C15/DG/B3,23 part is unused and in its original packaging.
Return procedure for BZX84-C15/DG/B3,23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C15/DG/B3,23 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
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