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NXP Semiconductors BZX284-C75,115
- Part No.:
- BZX284-C75,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C75,115.pdf
- Description:
- DIODE ZENER 75V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:2,422
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Product details
Overview
BZX284-C75,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 75 V nominal working voltage at IZtest = 2 mA, 400 mW total power dissipation, and 0.2 A non-repetitive peak reverse current. It serves as a precision low-power voltage reference in power supply feedback paths, overvoltage clamping circuits, and analog signal conditioning stages.
For engineers reviewing the BZX284-C75,115 datasheet, BZX284-C75,115 pinout, BZX284-C75,115 application, or BZX284-C75,115 equivalent, key selection criteria include its 75 V Zener voltage tolerance (±5%), differential resistance of 85 Ω max at IZ = 2 mA, temperature coefficient of +70 mV/K, junction-to-ambient thermal resistance of 315 K/W, and SOD110 footprint compatibility with high-density PCB layouts.
Technical Context
The BZX284-C75,115 operates as a two-terminal silicon Zener diode optimized for stable reverse-bias breakdown regulation. Its design centers on controlled avalanche breakdown above 7 V, delivering predictable VZ with minimal drift across temperature and current variations.
It exhibits a positive temperature coefficient (+70 mV/K) typical for high-voltage Zeners, enabling predictable thermal behavior in bias networks. The SOD110 package provides hermetic ceramic encapsulation, supporting operation from −65 °C to +150 °C junction temperature with 315 K/W thermal resistance under standard PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 73.5–76.5 V at IZ = 2 mA; ensures ±5% regulation accuracy for 75 V reference designs |
| Differential Resistance (rdiff) | ≤85 Ω at IZ = 2 mA; limits output impedance in shunt regulation loops |
| Temperature Coefficient (SZ) | +70 mV/K at IZ = 2 mA; defines predictable VZ drift with ambient temperature rise |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C; sets maximum continuous DC power handling on standard PCB |
| Reverse Current (IR) | ≤50 nA at VR = 52.5 V (0.7 × VZnom); guarantees low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | −65 to +150 °C; supports industrial and extended-temperature applications without derating |
| Package | SOD110 ceramic SMD; 1.9–2.1 mm length, 1.1–1.4 mm width, 1.6 mm height; enables 0805-equivalent board space usage |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. Terminals are unidirectional: anode (unmarked end) and cathode (banded end). Mounting requires reflow-compatible solder paste and standard 0805 land pattern dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal / low-side connection | Connected to lower potential node in shunt regulator; carries forward current up to 250 mA |
| Cathode (banded end) | Zener breakdown terminal / high-side connection | Connected to regulated voltage node; sustains reverse breakdown at 75 V with controlled dynamic impedance |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-effective voltage reference selection where tight regulation is not required, reducing BOM cost vs. ±2% variants |
| 400 mW power rating in SOD110 | Delivers higher power density than legacy DO-35 or SOD-323 packages, supporting compact power rail monitoring |
| Low reverse leakage (≤50 nA) | Minimizes error current in high-impedance feedback dividers, preserving ADC reference accuracy in sensor interfaces |
| Ceramic SOD110 package | Provides hermetic sealing and stable thermal performance across humidity and thermal cycling, critical for industrial reliability |
| Positive temperature coefficient (+70 mV/K) | Allows predictable compensation in temperature-sensitive bias networks without external components |
Applications
| Industrial Power Supply Monitoring | Automotive ECU Voltage Clamping |
|---|---|
Use Scenario: Monitoring 72 V battery-derived rails in PLC backplanes and motor drive control modules. IC Role / Device Role / Timing Role: Shunt voltage reference in op-amp comparator circuits detecting overvoltage faults. Use Value: Tight 75 V threshold with ±5% tolerance ensures reliable trip point alignment without calibration. |
Use Scenario: Protecting microcontroller I/O pins from load-dump transients in 24 V commercial vehicle ECUs. IC Role / Device Role / Timing Role: Low-energy clamping diode placed directly at connector interface. Use Value: 400 mW rating absorbs short-duration surges while SOD110 footprint minimizes trace inductance. |
| Medical Sensor Bias Network | Telecom Line Interface Protection |
Use Scenario: Providing stable bias voltage for photodiode transimpedance amplifiers in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision Zener reference in ultra-low-current analog front-end. Use Value: ≤50 nA reverse leakage prevents signal path contamination in picoampere-level current measurement. |
Use Scenario: Secondary overvoltage protection on -48 V telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standby clamp activated only during transient events exceeding steady-state voltage. Use Value: +70 mV/K tempco allows predictable voltage shift across operating range, simplifying margin analysis. |
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-C75 | Same 75 V ±5%, SOD-123 package, 500 mW Ptot, but rdiff = 100 Ω max (vs. 85 Ω) | Higher power rating suits higher-surge environments; larger SOD-123 footprint requires layout change | Select when surge energy absorption >400 mW is required and board space permits SOD-123 |
| Vishay BZX84-C75 | Same 75 V ±5%, SOT-23 package, 300 mW Ptot, rdiff = 90 Ω max, Tj = 150 °C | Lower power rating limits continuous use; SOT-23 offers smaller footprint but reduced thermal mass | Select for space-constrained consumer designs where average power <300 mW and thermal cycling is mild |
Compared with BZX284-C75,115, the BZT52-C75 offers higher surge capability but requires PCB redesign, while the BZX84-C75 reduces board area at the cost of thermal robustness and long-term stability in industrial settings.
Availability
BZX284-C75,115 is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive ECU voltage clamping, and medical sensor bias network applications requiring stable component supply and long-lifecycle support.
Supply support for BZX284-C75,115 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 for high-reliability, low-power voltage regulation in space-constrained SMD applications, emphasizing stable Zener characteristics, ceramic package integrity, and wide industrial temperature operation.
FAQ
What is the Zener voltage tolerance of the BZX284-C75,115?
The BZX284-C75,115 has a ±5% Zener voltage tolerance, meaning its nominal 75 V breakdown voltage falls within 73.5 V to 76.5 V at IZ = 2 mA. This tolerance is confirmed in Table 2 of the NXP datasheet and applies specifically to the "C" series variant, distinguishing it from the tighter ±2% "B" series.
What package type does the BZX284-C75,115 use?
The BZX284-C75,115 uses the SOD110 ceramic surface-mount package - a very small rectangular outline measuring 1.9–2.1 mm in length, 1.1–1.4 mm in width, and 1.6 mm in height, with cathode identification via a band. This package is documented in the "PACKAGE OUTLINE" section of the NXP datasheet.
What is the maximum continuous power dissipation for the BZX284-C75,115?
The BZX284-C75,115 has a maximum total power dissipation of 400 mW at ambient temperature of 25 °C, as specified in the "LIMITING VALUES" table. Derating is required above 25 °C per the 315 K/W junction-to-ambient thermal resistance, with full derating to zero at 150 °C junction temperature.
How does the temperature coefficient of the BZX284-C75,115 affect circuit performance?
The BZX284-C75,115 has a typical temperature coefficient of +70 mV/K at IZ = 2 mA, meaning its Zener voltage increases by approximately 70 mV per Kelvin rise in junction temperature. This positive drift is inherent to high-voltage avalanche breakdown and must be accounted for in precision reference designs operating across wide temperature ranges.
What is the reverse leakage current specification for the BZX284-C75,115?
The BZX284-C75,115 specifies a maximum reverse current (IR) of 50 nA at VR = 52.5 V (0.7 × VZnom), per the "ELECTRICAL CHARACTERISTICS" table. This low leakage ensures minimal error contribution in high-impedance voltage divider or bias networks where the BZX284-C75,115 is used as a reference element.
BZX284-C75,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 75 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 175 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 52.5 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-C75,115 FAQ
1.How can I place an order for BZX284-C75,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C75,115 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-C75,115 reliable?
The price and inventory of BZX284-C75,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C75,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C75,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C75,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C75,115?
BZX284-C75,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C75,115 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-C75,115?
For technical support, including BZX284-C75,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C75,115 requirements.
6.How does Aetrix verify that BZX284-C75,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C75,115 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-C75,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C75,115?
All BZX284-C75,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C75,115, 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-C75,115 part is unused and in its original packaging.
Return procedure for BZX284-C75,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C75,115 Tags
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