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NXP Semiconductors BZX284-B75,115
- Part No.:
- BZX284-B75,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B75,115.pdf
- Description:
- DIODE ZENER 75V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:9,663
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Product details
Overview
BZX284-B75,115 from NXP Semiconductors is a ±2% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 75 V nominal working voltage at 2 mA test current, 400 mW total power dissipation, and 85 Ω typical differential resistance at 2 mA. It serves as a precision reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX284-B75,115 datasheet, BZX284-B75,115 pinout, BZX284-B75,115 application, or BZX284-B75,115 equivalent, this page delivers verified electrical parameters, thermal behavior, reverse leakage limits at 0.7×VZnom, temperature coefficient of +70 mV/K, and SOD110 mechanical dimensions per IEC 60134 limiting values.
Technical Context
The BZX284-B75,115 operates as a two-terminal silicon planar Zener diode optimized for stable voltage regulation under reverse-bias conditions. Its junction temperature range spans −65 °C to +150 °C, with thermal resistance from junction to ambient (Rth j-a) fixed at 315 K/W when mounted on a standard 11 × 25 × 1.6 mm PCB.
Electrical behavior is defined at Tj = 25 °C unless otherwise specified: reverse current IR is limited to 50 nA at VR = 0.7×VZnom (52.5 V), forward voltage VF is 0.9 V at IF = 10 mA, and non-repetitive peak reverse current IZSM reaches 0.2 A for 100 μs square-wave surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 75 V at IZtest = 2 mA - defines primary regulation point for reference design |
| Tolerance | ±2% - enables tighter output voltage control vs. ±5% C-series variants |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous steady-state power handling |
| Differential Resistance (rdif) | 85 Ω typical at IZ = 2 mA - determines regulation stiffness and load-induced voltage drift |
| Temperature Coefficient (SZ) | +70 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Reverse Current (IR) | 50 nA at VR = 52.5 V - specifies leakage level near regulation threshold, critical for low-power bias networks |
| Junction-to-Ambient Thermal Resistance | 315 K/W - defines thermal bottleneck for PCB-mounted operation; requires adequate copper area for derating |
Pinout & Package
SOD110 is a very small ceramic rectangular surface-mounted package with cathode identifier marked on top surface. Dimensions: 2.10 × 1.40 × 1.60 mm (L × W × H), compliant with IEC JEDEC outline standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Forward conduction terminal / low-side connection | Connected to ground or lower-potential node in shunt regulation topology |
| Cathode (2) | Zener breakdown terminal / high-side connection | Connected to regulated node; carries reverse current during voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| ±2% voltage tolerance | Enables high-accuracy reference generation without post-calibration in sensor front-ends |
| 400 mW power rating | Supports robust transient suppression in 3.3 V/5 V logic supply rails with series resistor sizing ≥ 1 kΩ |
| SOD110 ceramic package | Provides hermetic reliability and stable parametric performance across −65 °C to +150 °C storage range |
| Low 50 nA leakage at 52.5 V | Minimizes quiescent current draw in battery-powered voltage monitor circuits |
| +70 mV/K tempco | Allows predictable compensation in temperature-sensitive analog references using matched diodes |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reset Circuit |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 75 V bias to Wheatstone bridge, with series resistor limiting current to 2 mA. Use Value: ±2% tolerance ensures <±1.5 V variation in bridge drive, maintaining ADC linearity within 0.1% full-scale error budget. | Use Scenario: Generating a clean reset threshold for ARM Cortex-M0+ MCUs operating from 3.3 V supplies. IC Role / Device Role / Timing Role: Zener-clamped voltage divider delivering 3.3 V reset signal with fast edge integrity during brown-out events. Use Value: 85 Ω differential resistance ensures <10 mV droop under 100 µA reset circuit loading, meeting ARM reset timing window requirements. |
| Automotive Body Control Module Clamp | Medical Instrumentation Reference Source |
Use Scenario: Protecting LIN bus transceiver inputs against load-dump transients up to 60 V in vehicle door modules. IC Role / Device Role / Timing Role: Overvoltage clamp placed between LIN line and ground, activated above 75 V with fast 100 µs surge response. Use Value: 0.2 A non-repetitive peak reverse current rating absorbs ISO 7637-2 Pulse 5a energy without degradation. | Use Scenario: Providing isolated 75 V reference for photodiode transimpedance amplifier gain calibration in portable blood analyzers. IC Role / Device Role / Timing Role: Precision voltage source feeding DAC-controlled feedback network in ultra-low-noise analog front-end. Use Value: 50 nA reverse leakage prevents >10 pA input bias error in femtoampere-level current measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX284-C75,115 | ±5% tolerance, same SOD110 package, identical 75 V nominal rating but wider VZ spread (70–79 V) | Acceptable where system-level calibration compensates for initial voltage variance | Select for cost-sensitive designs where ±2% accuracy is not required |
| MMSZ5265B-7-F | 75 V nominal, ±5%, SOD-123 package, 500 mW Ptot, 100 Ω rdif, 100 nA IR at 52.5 V | Higher power margin but looser tolerance and higher leakage limit system dynamic range | Select when board space allows larger SOD-123 footprint and 500 mW surge headroom is needed |
Compared with BZX284-C75,115 and MMSZ5265B-7-F, the BZX284-B75,115 offers the tightest voltage tolerance in the SOD110 footprint, enabling higher-accuracy references without trimming, while its 50 nA leakage supports ultra-low-current analog architectures where alternative parts exceed acceptable bias error budgets.
Availability
BZX284-B75,115 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control module protection, medical instrumentation reference sourcing, and low-power microcontroller reset circuit design requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX284-B75,115 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 designed as a family of low-power, high-stability Zener diodes targeting precision voltage reference and overvoltage protection in space-constrained SMD applications across automotive and industrial electronics.
FAQ
What is the nominal Zener voltage and test condition for BZX284-B75,115?
The BZX284-B75,115 has a nominal Zener voltage of 75 V measured at a test current of 2 mA. This value falls within the ±2% tolerance band (73.5 V to 76.5 V) and is specified under junction temperature conditions of 25 °C. The BZX284-B75,115 uses this 2 mA test point to ensure stable regulation characteristics in low-current reference applications.
What is the maximum power dissipation rating for BZX284-B75,115 and how does it scale with ambient temperature?
The BZX284-B75,115 has a maximum total power dissipation of 400 mW at an ambient temperature of 25 °C. Derating begins linearly above 25 °C at a rate determined by its thermal resistance of 315 K/W; for example, at 75 °C ambient, usable power drops to approximately 240 mW. This derating must be applied in PCB layout planning for sustained operation.
How does the temperature coefficient of BZX284-B75,115 affect its regulation stability over temperature?
The BZX284-B75,115 exhibits a positive temperature coefficient of +70 mV/K at 2 mA test current, meaning its Zener voltage increases by ~70 mV per Kelvin rise in junction temperature. This behavior is consistent across the 75 V variant and must be factored into wide-temperature-range designs-e.g., a 50 °C rise yields ~3.5 V upward shift in regulation point.
What is the reverse leakage current specification for BZX284-B75,115 and at what voltage is it measured?
The BZX284-B75,115 specifies a maximum reverse current (IR) of 50 nA at a reverse voltage of 52.5 V-defined as 0.7 × VZnom. This low-leakage performance is critical in high-impedance bias networks and battery-operated systems where standby current must remain below 100 nA. The BZX284-B75,115 achieves this via optimized silicon processing and ceramic packaging.
Which package type and mechanical outline does BZX284-B75,115 use, and what are its key dimensions?
The BZX284-B75,115 uses the SOD110 very small ceramic SMD package, standardized under IEC outline 97-04-14. Its dimensions are 2.10 mm length × 1.40 mm width × 1.60 mm height, with cathode identification marked on the top surface. This compact footprint supports high-density layouts in space-constrained applications such as wearable medical devices and automotive ECUs.
BZX284-B75,115 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:
- ±2%
- 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-B75,115 FAQ
1.How can I place an order for BZX284-B75,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B75,115 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-B75,115 reliable?
The price and inventory of BZX284-B75,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B75,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B75,115?
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BZX284-B75,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B75,115 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-B75,115?
For technical support, including BZX284-B75,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B75,115 requirements.
6.How does Aetrix verify that BZX284-B75,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B75,115 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-B75,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B75,115?
All BZX284-B75,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B75,115, 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-B75,115 part is unused and in its original packaging.
Return procedure for BZX284-B75,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-B75,115 Tags
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