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NXP Semiconductors BZX284-B30,115
- Part No.:
- BZX284-B30,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B30,115.pdf
- Description:
- DIODE ZENER 30V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:5,649
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Product details
Overview
BZX284-B30,115 from NXP Semiconductors is a ±2% tolerance, 30 V nominal Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 400 mW total power dissipation at 25 °C ambient, with 35 Ω typical differential resistance at 2 mA test current and 10 mV/K temperature coefficient - used for precision low-power voltage reference and overvoltage clamping in sensor signal conditioning circuits.
For engineers reviewing the BZX284-B30,115 datasheet, BZX284-B30,115 pinout, BZX284-B30,115 application, or BZX284-B30,115 equivalent, this part serves as a stable, surface-mount Zener reference in space-constrained industrial control modules, automotive body electronics, and portable instrumentation where tight voltage regulation and thermal stability under low-current bias are required.
Technical Context
The BZX284-B30,115 operates as a reverse-biased Zener diode with a nominal breakdown voltage of 30.0 V (min 29.4 V, max 30.6 V) at IZtest = 2 mA, exhibiting 35 Ω typical dynamic impedance and 10 mV/K positive temperature coefficient - optimized for stable regulation across −65 °C to +150 °C junction temperature range.
It uses a ceramic SOD110 package with 1.9–2.1 mm length, 1.1–1.4 mm width, and 1.6 mm height, achieving 315 K/W junction-to-ambient thermal resistance when mounted on a 11 × 25 × 1.6 mm PCB - enabling reliable operation up to 150 °C junction temperature with ≤400 mW total power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 30.0 V at IZ = 2 mA - defines precise regulation point for feedback loops and reference generation. |
| Voltage Tolerance | ±2% (B-series) - ensures 29.4 V to 30.6 V consistency across production lots without calibration. |
| Differential Resistance | 35 Ω typical at IZ = 2 mA - determines output impedance and load regulation error under varying current. |
| Temperature Coefficient | +10 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius, critical for wide-temperature applications. |
| Total Power Dissipation | 400 mW at Tamb = 25 °C - sets maximum continuous reverse power before thermal runaway risk. |
| Reverse Current (IR) | 50 nA at VR = 0.7 × VZnom = 21 V - confirms low leakage for high-impedance bias networks. |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments. |
Pinout & Package
SOD110 is a two-terminal ceramic surface-mount package with cathode marked by a band on one end; terminals are non-polarized in function but electrically asymmetric - anode (A) and cathode (K) define unidirectional conduction path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward conduction terminal | Connected to lower potential side in Zener configuration; carries forward current up to 250 mA. |
| Cathode (K) | Zener breakdown terminal | Connected to higher potential side; sustains regulated reverse voltage up to 30.6 V with controlled leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD110 ceramic package | 1.9 × 1.1 × 1.6 mm footprint - enables placement in dense PCB layouts with minimal board area impact. |
| ±2% Zener voltage tolerance | Guarantees 29.4–30.6 V regulation without post-manufacture sorting or trimming. |
| Stable temperature coefficient | +10 mV/K allows predictable voltage drift compensation in analog front-ends. |
| Low reverse leakage | 50 nA at 21 V reverse bias - preserves accuracy in high-resistance divider networks. |
| High surge robustness | 1.0 A non-repetitive peak reverse current (100 μs pulse) - withstands transient overvoltage events. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|---|---|
|
Use Scenario: Stabilizing ADC reference voltage for temperature and pressure sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 30 V rail for op-amp biasing and level-shifting circuits. Use Value: Maintains <±0.6 V regulation error over −40 °C to +85 °C ambient due to tight ±2% tolerance and known +10 mV/K drift. |
Use Scenario: Clamping CAN transceiver supply rail against load-dump transients in door module ECUs. IC Role / Device Role / Timing Role: Overvoltage protection element shunting excess energy above 30.6 V to ground. Use Value: Limits voltage excursion to ≤30.6 V with 1.0 A surge capability, preventing damage to 3.3 V/5 V logic interfaces. |
| Portable Medical Instrumentation | Smart Energy Meter Voltage Monitoring |
|
Use Scenario: Generating stable bias for photodiode amplifier stages in handheld pulse oximeters. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying clean 30 V for transimpedance amplifier gain setting. Use Value: Delivers <50 nA leakage and 35 Ω dynamic impedance, minimizing input offset drift and gain error. |
Use Scenario: Monitoring mains-derived DC bus voltage in DIN-rail energy meters using resistive divider scaling. IC Role / Device Role / Timing Role: Precision voltage clamp ensuring divider output stays within ADC input range during surges. Use Value: Holds clamped voltage at 30.0 ±0.6 V with <100 ns response, protecting 16-bit sigma-delta ADC inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-B30 | Same SOD123 package (2.7 × 1.6 × 1.1 mm), ±2% tolerance, 30 V nominal, but 500 mW Ptot rating and 70 Ω rdif. | Higher power handling suits higher-current bias networks; larger footprint may require layout revision. | Select when >400 mW dissipation or >2 mA operating current is needed; verify thermal pad compatibility. |
| Vishay BZX84-C30 | SOT-23 package, ±5% tolerance (28.5–31.5 V), 300 mW Ptot, 40 Ω rdif, 50 nA IR at 21 V. | Looser tolerance and lower power limit suitability for cost-sensitive consumer applications. | Choose for non-critical references where ±5% variation is acceptable and board space permits SOT-23 mounting. |
Compared with BZX284-B30,115, the BZT52-B30 offers higher power margin but requires PCB rework for SOD123; the BZX84-C30 trades precision and power for smaller size and lower cost - making BZX284-B30,115 optimal for space-constrained, thermally demanding, ±2% regulation needs.
Availability
BZX284-B30,115 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control modules, and portable medical instrumentation requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX284-B30,115 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 markets.
The BZX284 series was designed as a family of precision, low-power Zener diodes targeting surface-mount voltage reference and clamping applications in space-constrained, thermally variable environments.
FAQ
What is the nominal Zener voltage and tolerance of the BZX284-B30,115?
The BZX284-B30,115 has a nominal Zener voltage of 30.0 V with a ±2% tolerance, meaning its actual breakdown voltage falls between 29.4 V and 30.6 V when tested at 2 mA reverse current. This tight tolerance is specified per the B-series designation and confirmed in Table 2 of the NXP datasheet. The BZX284-B30,115 maintains this specification across its qualified operating temperature range.
What package type and dimensions does the BZX284-B30,115 use?
The BZX284-B30,115 uses the SOD110 ceramic surface-mount package, measuring 1.90–2.10 mm in length, 1.10–1.40 mm in width, and 1.6 mm in height, with a cathode band marking. Its thermal resistance is 315 K/W junction-to-ambient when mounted on a standard 11 × 25 × 1.6 mm PCB. The BZX284-B30,115's compact size supports high-density PCB layouts while maintaining ceramic reliability.
What is the maximum power dissipation and thermal limit for the BZX284-B30,115?
The BZX284-B30,115 has a maximum total power dissipation of 400 mW at 25 °C ambient temperature, with absolute maximum junction temperature of +150 °C and storage temperature range of −65 °C to +150 °C. Derating is required above 25 °C per the 315 K/W thermal resistance - for example, at 75 °C ambient, max power drops to ~250 mW. The BZX284-B30,115 must be operated within these limits to ensure long-term reliability.
How does the temperature coefficient affect the BZX284-B30,115's regulation performance?
The BZX284-B30,115 exhibits a +10 mV/K temperature coefficient at 2 mA test current, meaning its Zener voltage increases by approximately 10 mV per degree Celsius rise in junction temperature. This predictable linear drift allows system-level compensation in precision references. The BZX284-B30,115's coefficient is stable across its operating range and documented in Figure 4 of the NXP datasheet for voltages ≥4.7 V.
Can the BZX284-B30,115 be used for overvoltage protection, and what surge capability does it have?
Yes, the BZX284-B30,115 is commonly used for overvoltage clamping due to its sharp Zener knee and defined breakdown characteristics. It supports a non-repetitive peak reverse current of 1.0 A for 100 μs pulses at 25 °C ambient, enabling transient suppression in automotive and industrial systems. The BZX284-B30,115 must be paired with appropriate series impedance to limit average power during repeated surges.
BZX284-B30,115 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:
- ±2%
- 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-B30,115 FAQ
1.How can I place an order for BZX284-B30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B30,115 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-B30,115 reliable?
The price and inventory of BZX284-B30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B30,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B30,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-B30,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-B30,115?
BZX284-B30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B30,115 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-B30,115?
For technical support, including BZX284-B30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B30,115 requirements.
6.How does Aetrix verify that BZX284-B30,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B30,115 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-B30,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B30,115?
All BZX284-B30,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B30,115, 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-B30,115 part is unused and in its original packaging.
Return procedure for BZX284-B30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-B30,115 Tags
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