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NXP Semiconductors BZX284-B11,115
- Part No.:
- BZX284-B11,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B11,115.pdf
- Description:
- DIODE ZENER 11V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:9,745
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Product details
Overview
BZX284-B11,115 from NXP Semiconductors is a ±2% tolerance, 11 V nominal Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 400 mW total power dissipation at 25 °C ambient, with 108 Ω typical differential resistance at 5 mA test current and 100 nA reverse leakage at 8 V reverse bias - used for precision low-power voltage reference and overvoltage clamping in sensor signal conditioning circuits.
For engineers reviewing the BZX284-B11,115 datasheet, BZX284-B11,115 pinout, BZX284-B11,115 application, or BZX284-B11,115 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (315 K/W), junction temperature limit (150 °C), and SOD110 footprint compatibility with space-constrained PCB layouts.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable voltage regulation under varying load and temperature conditions. Its 11 V nominal working voltage is specified at 5 mA test current, with 25–150 Ω min–max differential resistance and +7.4 mV/K positive temperature coefficient above 6.2 V.
The device uses a planar silicon junction structure optimized for low noise and tight voltage tolerance. It is designed for surface-mount assembly on standard FR-4 PCBs (11 × 25 × 1.6 mm) and exhibits 100 nA reverse current at VR = 8 V, enabling low-quiescent-current biasing in analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.8–11.2 V at IZ = 5 mA - ensures ±2% regulation accuracy for stable reference generation |
| Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - defines maximum continuous thermal load without derating |
| Differential Resistance (rdif) | 25–150 Ω at IZ = 5 mA - determines output impedance and regulation sensitivity to current changes |
| Reverse Leakage (IR) | 100 nA at VR = 8 V - enables low-error bias networks in high-impedance circuits |
| Temperature Coefficient (SZ) | +7.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Junction Temperature (Tj) | 150 °C maximum - sets upper thermal operating limit for reliability in sealed enclosures |
| Package | SOD110 ceramic SMD - provides hermetic sealing, 1.9–2.1 mm length, 1.1–1.4 mm width, 1.6 mm height |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. The device has no active pins - only anode (A) and cathode (K) terminals, with cathode identified by the marking band visible in top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry / Reverse bias return path | Connected to lower-potential node in Zener clamp or reference configuration |
| Cathode (K) | Forward current exit / Reverse bias voltage input | Marked terminal; connects to regulated output or protection rail; carries Zener current during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables precise voltage references without external trimming in 11 V supply monitoring circuits |
| 400 mW power rating | Supports sustained regulation in low-power sensor interfaces and microcontroller reset circuits |
| SOD110 ceramic package | Provides moisture resistance and thermal stability superior to plastic SMD packages in humid environments |
| 100 nA reverse leakage at 8 V | Minimizes error contribution in high-impedance voltage divider-based feedback networks |
| +7.4 mV/K temperature coefficient | Allows predictable compensation in temperature-sensitive analog measurement systems |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuitry |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs in pressure transducers exposed to 0–85 °C ambient. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 11 V rail for op-amp biasing and ADC reference scaling. Use Value: ±2% tolerance and low 100 nA leakage ensure <0.5% full-scale error across temperature without calibration. |
Use Scenario: Generating clean, noise-immune reset signal for ARM Cortex-M0+ MCU during brown-out events. IC Role / Device Role / Timing Role: Clamping element in RC-delayed reset circuit, holding reset line low until 11 V rail stabilizes. Use Value: 400 mW rating sustains transient surge during power-up; SOD110 footprint fits compact 4-layer board layout. |
| Automotive Cabin Temperature Sensor | IoT Node Battery Voltage Monitor |
|
Use Scenario: Providing stable excitation voltage to thermistor bridge in HVAC control module operating at −40 to +105 °C. IC Role / Device Role / Timing Role: Precision Zener reference for ratiometric measurement, compensating for supply variation. Use Value: +7.4 mV/K coefficient aligns with thermistor drift profile, reducing software compensation overhead. |
Use Scenario: Monitoring Li-ion battery voltage (3.0–4.2 V) via resistive divider into ultra-low-power MCU ADC. IC Role / Device Role / Timing Role: Overvoltage clamp protecting ADC input against accidental 12 V connection or ESD event. Use Value: 11 V Zener threshold safely limits input to 11 V while drawing only 100 nA standby current. |
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-B11 | Same 11 V ±2%, 400 mW rating, but in SOD-123 plastic package; 350 K/W Rth j-a vs. 315 K/W | Lower moisture resistance; higher thermal resistance reduces safe operating area in sealed housings | Prefer BZX284-B11,115 where humidity or thermal cycling reliability is critical |
| Vishay PLZ11B | 11 V ±2%, 500 mW rating, SOD-123 package; 100 nA IR at 8 V, but +6.8 mV/K SZ | Higher power margin allows larger transient clamping, but slightly lower tempco reduces matching flexibility | Choose BZX284-B11,115 when exact NXP-spec tempco and ceramic hermeticity are required |
Compared with BZT52-B11 and PLZ11B, the BZX284-B11,115 offers superior thermal resistance (315 K/W), ceramic encapsulation for humidity immunity, and a precisely matched +7.4 mV/K temperature coefficient - making it optimal for automotive and industrial applications demanding long-term stability.
Availability
BZX284-B11,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin electronics, and IoT battery-monitoring systems requiring stable component supply with guaranteed traceability and lifecycle continuity.
Supply support for BZX284-B11,115 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 developed for high-reliability, low-power voltage regulation in space-constrained SMD applications - emphasizing tight tolerance, low leakage, and ceramic-package robustness for harsh-environment deployments.
FAQ
What is the Zener voltage tolerance of the BZX284-B11,115?
The BZX284-B11,115 has a nominal Zener voltage of 11 V with a guaranteed ±2% tolerance, meaning its actual breakdown voltage falls between 10.8 V and 11.2 V when tested at 5 mA. This tight tolerance is confirmed in Table 1 of the NXP datasheet and applies specifically to the BZX284-B11,115 variant, distinguishing it from the ±5% BZX284-C11 series.
Does the BZX284-B11,115 have a specified thermal resistance?
Yes, the BZX284-B11,115 has a thermal resistance from junction to ambient (Rth j-a) of 315 K/W when mounted on a standard 11 × 25 × 1.6 mm FR-4 PCB, as stated in the Thermal Characteristics section. This value directly impacts power derating above 25 °C ambient and is measured under defined board conditions - not a generic estimate.
What is the reverse leakage current specification for the BZX284-B11,115?
The BZX284-B11,115 exhibits a maximum reverse leakage current (IR) of 100 nA at VR = 8 V, per the Electrical Characteristics table. This low leakage is critical for minimizing error in high-impedance bias networks and is verified at Tj = 25 °C - a parameter explicitly assigned to the BZX284-B11,115 in the datasheet's IR row for "BZX284-B/C11".
Is the BZX284-B11,115 compatible with reflow soldering processes?
Yes, the BZX284-B11,115 in its SOD110 ceramic package is qualified for standard lead-free reflow soldering per JEDEC J-STD-020. The package withstands peak temperatures up to 260 °C for 10 seconds, and its thermal mass supports uniform heating - consistent with NXP's packaging specifications for SOD110 devices like the BZX284-B11,115.
What does the "115" suffix indicate in BZX284-B11,115?
The "115" suffix in BZX284-B11,115 is a NXP internal ordering code denoting tape-and-reel packaging (1500 pcs/reel), RoHS compliance, and standard grade (−65 to +150 °C). It does not affect electrical parameters - all BZX284-B11 variants share identical Zener voltage, tolerance, and thermal specs regardless of trailing digits.
BZX284-B11,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-B11,115 FAQ
1.How can I place an order for BZX284-B11,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B11,115 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-B11,115 reliable?
The price and inventory of BZX284-B11,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B11,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B11,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-B11,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-B11,115?
BZX284-B11,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B11,115 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-B11,115?
For technical support, including BZX284-B11,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B11,115 requirements.
6.How does Aetrix verify that BZX284-B11,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B11,115 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-B11,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B11,115?
All BZX284-B11,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B11,115, 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-B11,115 part is unused and in its original packaging.
Return procedure for BZX284-B11,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-B11,115 Tags
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