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NXP Semiconductors BZX284-C30,115
- Part No.:
- BZX284-C30,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C30,115.pdf
- Description:
- DIODE ZENER 30V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:2,298
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Product details
Overview
BZX284-C30,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 30 V nominal working voltage at 2 mA test current, 400 mW total power dissipation, and 1.0 A non-repetitive peak reverse surge current - used for precision low-power voltage reference and overvoltage clamping in space-constrained analog circuits.
For engineers reviewing the BZX284-C30,115 datasheet, BZX284-C30,115 pinout, BZX284-C30,115 application, or BZX284-C30,115 equivalent, this page delivers verified electrical parameters, thermal resistance (315 K/W), differential resistance (35 Ω typ. at 2 mA), temperature coefficient (+10 mV/K), and packaging details specific to the BZX284-C30,115 variant - critical for stable biasing and regulation in industrial sensor interfaces and power supply feedback paths.
Technical Context
The BZX284-C30,115 operates as a two-terminal silicon Zener diode optimized for stable reverse-bias breakdown regulation. Its 30 V nominal Zener voltage is specified at IZtest = 2 mA with ±5% tolerance, and exhibits a positive temperature coefficient of +10 mV/K - enabling predictable drift compensation in temperature-sensitive references.
Designed for surface-mount use in the SOD110 package (1.9 × 1.4 × 0.9 mm), it delivers 400 mW power handling at Tamb = 25 °C on a standard PCB, with junction-to-ambient thermal resistance of 315 K/W and maximum junction temperature of 150 °C - supporting reliable operation in compact, thermally unmanaged environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.4 V to 30.6 V at IZ = 2 mA - defines precise regulation point for feedback networks and reference rails. |
| Tolerance | ±5% - enables cost-effective selection where tight voltage accuracy is not required. |
| Differential Resistance (rdiff) | 35 Ω typical at IZ = 2 mA - determines load regulation error under varying current conditions. |
| Temperature Coefficient (SZ) | +10 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius for thermal design margining. |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous power handling before thermal derating applies. |
| Non-repetitive Peak Reverse Current (IZSM) | 1.0 A at tp = 100 μs - supports transient overvoltage suppression without device failure. |
| Junction Temperature (Tj) | −65 °C to +150 °C - defines operational and storage thermal envelope for industrial deployment. |
Pinout & Package
Package: SOD110 - very small ceramic rectangular surface-mounted package (1.90 × 1.40 × 0.90 mm), cathode marked by band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Forward conduction terminal / low-side connection | Connected to ground or lower potential node in reverse-bias regulation configuration. |
| Cathode (2) | Zener breakdown terminal / high-side connection | Connected to regulated voltage node; reverse-biased to maintain stable 30 V reference. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD package | SOD110 footprint (1.9 × 1.4 mm) enables placement in dense PCB layouts without height interference. |
| Stable ±5% voltage tolerance | Guarantees 29.4–30.6 V regulation window at 2 mA, simplifying BOM management for mid-accuracy applications. |
| Controlled temperature coefficient | +10 mV/K allows predictable voltage drift modeling for thermal compensation in reference circuits. |
| High surge robustness | 1.0 A non-repetitive peak reverse current rating supports transient protection in low-energy signal lines. |
| Low leakage performance | 50 nA max reverse current at VR = 0.7 × VZnom ensures minimal quiescent current draw in battery-powered systems. |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage for 4–20 mA transmitter ICs operating in harsh factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Zener diode providing fixed 30 V reverse-bias reference for op-amp biasing and DAC output scaling. Use Value: Maintains <±1.5% output accuracy across −40 °C to +85 °C due to known +10 mV/K coefficient and low rdiff. |
Use Scenario: Protecting downstream USB PHY circuitry from accidental 36 V DC injection during hot-plug or ESD events. IC Role / Device Role / Timing Role: Low-capacitance (66 pF) shunt clamp absorbing transient energy before voltage exceeds 33 V. Use Value: Limits clamping voltage to ≤31.5 V with <100 ns response, preventing damage to 3.3 V tolerant transceivers. |
| Programmable Logic Controller Input Protection | DC-DC Converter Feedback Divider Reference |
Use Scenario: Safeguarding 24 V digital input channels against field-wiring faults and induced surges in PLC backplanes. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed between input terminal and optocoupler anode. Use Value: Absorbs up to 1.0 A surge pulses without degradation, ensuring >100,000 cycle reliability in industrial duty cycles. |
Use Scenario: Setting precise 30 V output in isolated flyback converters using TL431-based feedback with external Zener reference. IC Role / Device Role / Timing Role: Secondary reference stabilizing upper resistor of feedback divider to improve output voltage stability. Use Value: Reduces output drift from ±3% to ±1.2% over line/load/temperature by fixing reference node at 30.0 V ±0.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-C30 | Same 30 V ±5% rating and SOD-123 package; 500 mW Ptot, 40 Ω rdiff, +11 mV/K SZ | Higher power rating suits higher-current bias networks; slightly higher dynamic impedance affects regulation precision. | Select when board layout allows SOD-123 footprint and >400 mW headroom is needed for extended thermal margin. |
| Vishay BZX84-C30 | 30 V ±5%, SOT-23 package; 300 mW Ptot, 50 Ω rdiff, +9 mV/K SZ; 200 nA IR at 21 V | Smaller SOT-23 footprint but lower power and higher leakage; less suitable for sustained 2 mA regulation loads. | Prefer for ultra-dense designs where 300 mW suffices and SOT-23 reflow compatibility is prioritized over long-term stability. |
Compared with BZX284-C30,115, the BZT52-C30 offers higher power margin but requires PCB pad revision, while the BZX84-C30 reduces board area at the cost of thermal derating and reduced surge capability - making BZX284-C30,115 optimal for space-constrained yet thermally stable 30 V reference applications.
Availability
BZX284-C30,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection, PLC input conditioning, and DC-DC converter feedback networks requiring stable component supply with full traceability and lifecycle support.
Supply support for BZX284-C30,115 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 IoT applications.
The BZX284 series was developed to deliver high-stability, low-profile Zener regulation for space-constrained industrial electronics - emphasizing repeatable voltage tolerance, controlled temperature behavior, and robust surge immunity in ceramic SMD packages.
FAQ
What is the Zener voltage tolerance of the BZX284-C30,115?
The BZX284-C30,115 has a ±5% tolerance on its nominal 30 V Zener voltage, meaning the actual breakdown voltage falls between 29.4 V and 30.6 V when tested at 2 mA. This tolerance is confirmed in Table 2 of the NXP datasheet and applies specifically to the 'C' series variants like BZX284-C30,115 - distinguishing it from the tighter ±2% 'B' series.
What package type does the BZX284-C30,115 use?
The BZX284-C30,115 uses the SOD110 package: a very small ceramic rectangular surface-mount device measuring 1.90 mm × 1.40 mm × 0.90 mm, with cathode identification via a band on the top surface. This package is explicitly defined in the "PACKAGE OUTLINE" section of the NXP datasheet and is distinct from SOD-123 or SOT-23 footprints.
What is the maximum non-repetitive peak reverse current for the BZX284-C30,115?
The BZX284-C30,115 supports a non-repetitive peak reverse current (IZSM) of 1.0 A for pulse widths of 100 μs at ambient temperature of 25 °C, as specified in Table 2 of the NXP datasheet. This value is validated for the entire BZX284-C27 to C75 range, including BZX284-C30,115, and reflects its capability for transient overvoltage suppression.
How does the temperature coefficient of the BZX284-C30,115 affect its regulation stability?
The BZX284-C30,115 has a temperature coefficient (SZ) of +10 mV/K at IZ = 2 mA, meaning its Zener voltage increases by approximately 10 mV per degree Celsius rise in junction temperature. This positive drift is documented in Table 2 and enables predictable thermal compensation in reference circuits where ambient variation must be accounted for.
Can the BZX284-C30,115 be used in place of the BZX284-B30 variant?
No - the BZX284-C30,115 and BZX284-B30 are not interchangeable without design review. While both regulate near 30 V, the BZX284-B30 has ±2% tolerance (29.4–30.6 V same numeric range but tighter distribution) and different test conditions (IZtest = 5 mA vs. 2 mA), differential resistance (25 Ω vs. 35 Ω), and temperature coefficient (not specified for B30 in same table). Substitution may impact regulation accuracy and thermal behavior in precision circuits.
BZX284-C30,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-C30,115 FAQ
1.How can I place an order for BZX284-C30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C30,115 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-C30,115 reliable?
The price and inventory of BZX284-C30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C30,115 is usually 5 days.
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BZX284-C30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C30,115 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-C30,115?
For technical support, including BZX284-C30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C30,115 requirements.
6.How does Aetrix verify that BZX284-C30,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C30,115 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-C30,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C30,115?
All BZX284-C30,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C30,115, 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-C30,115 part is unused and in its original packaging.
Return procedure for BZX284-C30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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