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NXP Semiconductors BZX284-C4V7,115
- Part No.:
- BZX284-C4V7,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C4V7,115.pdf
- Description:
- DIODE ZENER 4.7V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:7,084
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Product details
Overview
BZX284-C4V7,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in SOD110 ceramic SMD package, rated for 4.4–5.0 V nominal working voltage at 5 mA test current, 400 mW total power dissipation, and 425–500 Ω differential resistance. It serves as a precision low-power voltage reference in power supply feedback paths, overvoltage protection circuits, and analog signal conditioning stages.
For engineers reviewing the BZX284-C4V7,115 datasheet, BZX284-C4V7,115 pinout, BZX284-C4V7,115 application, or BZX284-C4V7,115 equivalent, key selection criteria include its ±5% tolerance, 3 μA reverse leakage at 2 V, −1.4 mV/K temperature coefficient, and suitability for space-constrained SMD designs requiring stable 4.7 V regulation under 5 mA bias.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals. Its performance is specified at Tj = 25 °C with IZtest = 5 mA, and it exhibits a negative temperature coefficient of −1.4 mV/K in the 4.4–5.0 V range, indicating decreasing Zener voltage with rising junction temperature.
The device uses a planar silicon junction structure optimized for low noise and stable long-term voltage drift. Its SOD110 package provides thermal resistance of 315 K/W (junction-to-ambient, mounted on 11 × 25 × 1.6 mm PCB), limiting maximum continuous power dissipation to 400 mW at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 4.7 V (4.4–5.0 V range at 5 mA; defines stable regulation point) |
| Tolerance | ±5% (BZX284-C series; impacts voltage accuracy in precision references) |
| Differential Resistance | 425–500 Ω (at 5 mA; determines output impedance and load regulation sensitivity) |
| Reverse Leakage Current | 3 μA at VR = 2 V (defines minimum bias current needed to maintain regulation) |
| Power Dissipation | 400 mW max at 25 °C ambient (sets upper limit for continuous DC power handling) |
| Temperature Coefficient | −1.4 mV/K (at 5 mA; quantifies voltage drift per degree Celsius rise in junction temp) |
| Junction Temperature Range | −65 to +150 °C (defines operational thermal envelope for reliability) |
Pinout & Package
SOD110 is a very small ceramic surface-mount package with two terminals: anode (1) and cathode (2), marked by a cathode band on the top surface. The package measures 2.10 × 1.40 × 1.60 mm (L × W × H) with 0.1 mm maximum lead protrusion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Forward current entry / Reverse bias return path | Connected to lower-potential node in Zener regulation circuit; carries forward current or reverse leakage return current |
| Cathode (Terminal 2) | Zener voltage reference node / Reverse bias input | Connected to regulated output node; voltage at this terminal is clamped to ~4.7 V when reverse biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD packaging | SOD110 ceramic case enables high-density PCB layouts and automated assembly without reflow damage risk |
| Stable ±5% voltage tolerance | Guarantees predictable regulation window for cost-sensitive applications where tighter tolerance is unnecessary |
| Controlled temperature coefficient | −1.4 mV/K allows predictable compensation in temperature-varying environments without external circuitry |
| Low reverse leakage | 3 μA at 2 V enables use in ultra-low-power monitoring circuits without significant quiescent current penalty |
| High surge current capability | 12 A non-repetitive peak reverse current (100 μs pulse) supports transient overvoltage suppression in power rails |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived DC-DC converters using optocoupler feedback loops. IC Role / Device Role / Timing Role: Provides precise 4.7 V reference for TL431 or similar shunt regulator ICs in secondary-side feedback networks. Use Value: Enables stable output regulation within ±5% despite component aging and temperature variation, reducing need for post-production trimming. |
Use Scenario: Protecting microcontroller I/O pins or sensor inputs from ESD or supply rail transients exceeding 5 V. IC Role / Device Role / Timing Role: Acts as passive clamp diode, conducting only when reverse voltage exceeds 4.7 V breakdown threshold. Use Value: Limits transient voltage to ≤5.0 V with <3 μA standby leakage, preserving signal integrity without loading active circuits. |
| Reference Voltage Source | Signal Level Shifting |
|
Use Scenario: Generating a stable 4.7 V bias for op-amp comparators, ADC reference dividers, or analog front-end calibration. IC Role / Device Role / Timing Role: Supplies fixed reference potential independent of supply rail fluctuations, used in conjunction with resistive dividers. Use Value: Delivers 4.7 V with <0.5% drift over 0–70 °C due to known −1.4 mV/K coefficient, enabling predictable offset correction. |
Use Scenario: Translating 3.3 V logic signals to 4.7 V compatible levels for interfacing with legacy 5 V peripherals. IC Role / Device Role / Timing Role: Functions as a passive level translator via Zener clamping-input pulled up through resistor to 4.7 V rail. Use Value: Achieves bidirectional level shift with no active components, leveraging 425–500 Ω dynamic impedance for clean edge transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ4685 (ON Semiconductor) | Same 4.7 V nominal, ±5%, SOD-123 package; 350 mW rating; 600 Ω typical rdiff | Higher differential resistance increases load regulation error; lower power rating limits sustained current | Select when SOD-123 footprint compatibility is required and 350 mW suffices |
| BZX84-C4V7 (NXP) | Same 4.7 V, ±5%, but in SOT-23 package; 300 mW rating; 600 Ω rdiff; higher Rth j-a (450 K/W) | Less thermal margin and poorer regulation stability due to higher impedance and worse thermal performance | Choose only if SOT-23 is mandated and board layout cannot accommodate SOD110's smaller footprint |
Compared with MMBZ4685 and BZX84-C4V7, BZX284-C4V7,115 offers superior thermal resistance (315 K/W), lower differential resistance (425–500 Ω), and higher power handling (400 mW), making it preferred for compact, thermally constrained, or precision-regulated designs.
Availability
BZX284-C4V7,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamp, and reference voltage source applications requiring stable component supply, consistent parametric performance, and RoHS-compliant SMD packaging.
Supply support for BZX284-C4V7,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.
The BZX284 series was designed for low-power, high-stability voltage regulation in space-constrained SMD applications, emphasizing tight tolerance control, repeatable thermal behavior, and robust surge immunity in ceramic packaging.
FAQ
What is the Zener voltage tolerance of BZX284-C4V7,115?
The BZX284-C4V7,115 has a ±5% tolerance on its nominal 4.7 V Zener voltage, meaning the actual breakdown voltage falls between 4.4 V and 5.0 V when tested at 5 mA. This tolerance is defined per the BZX284-C series specification and applies across the full operating temperature range. The BZX284-C4V7,115 is not rated for tighter ±2% tolerance - that designation belongs exclusively to the BZX284-B variant.
Can BZX284-C4V7,115 be used in place of BZX284-B4V7?
No - BZX284-C4V7,115 and BZX284-B4V7 are not interchangeable without design review. While both regulate near 4.7 V, the BZX284-B4V7 has ±2% tolerance (4.61–4.79 V), whereas BZX284-C4V7,115 has ±5% (4.4–5.0 V). Their differential resistance and temperature coefficients also differ: BZX284-B4V7 specifies 410–600 Ω and −2.5 mV/K, versus 425–500 Ω and −1.4 mV/K for BZX284-C4V7,115. The BZX284-C4V7,115 must be evaluated separately for precision-critical roles.
What is the maximum continuous reverse current BZX284-C4V7,115 can handle?
The BZX284-C4V7,115 does not specify a maximum continuous reverse current; instead, its safe operating area is defined by total power dissipation (400 mW at 25 °C) and junction temperature limit (150 °C). At 4.7 V, this corresponds to a maximum average reverse current of approximately 85 mA (400 mW ÷ 4.7 V). Exceeding this value risks thermal runaway. Derating is required above 25 °C ambient per the 315 K/W thermal resistance.
Is BZX284-C4V7,115 suitable for ESD protection?
The BZX284-C4V7,115 is not optimized for primary ESD protection due to its relatively slow response time and lack of specified IEC 61000-4-2 ratings. However, it can serve as a secondary overvoltage clamp - its 12 A non-repetitive peak reverse current (100 μs pulse) allows limited transient absorption. For dedicated ESD protection, purpose-built TVS diodes like PESD5V0S1BA are recommended. The BZX284-C4V7,115 remains appropriate for steady-state voltage clamping and regulation.
What is the cathode marking convention for BZX284-C4V7,115?
The BZX284-C4V7,115 uses a cathode band on the top surface of the SOD110 package to identify Terminal 2 (cathode). Per the official outline drawing, the cathode mark is a visible stripe aligned with one end of the rectangular ceramic body. When viewed from the top with the marking band on the left, Terminal 1 (anode) is on the right. This polarity must be observed during PCB layout to ensure correct reverse-bias operation of the BZX284-C4V7,115.
BZX284-C4V7,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-110
BZX284-C4V7,115 FAQ
1.How can I place an order for BZX284-C4V7,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C4V7,115 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 BZX284-C4V7,115 reliable?
The price and inventory of BZX284-C4V7,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C4V7,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C4V7,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C4V7,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C4V7,115?
BZX284-C4V7,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C4V7,115 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 BZX284-C4V7,115?
For technical support, including BZX284-C4V7,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C4V7,115 requirements.
6.How does Aetrix verify that BZX284-C4V7,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C4V7,115 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 BZX284-C4V7,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C4V7,115?
All BZX284-C4V7,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C4V7,115, 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 BZX284-C4V7,115 part is unused and in its original packaging.
Return procedure for BZX284-C4V7,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C4V7,115 Tags
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