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Nexperia USA Inc. BZV49-C11,115
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- Part No.:
- BZV49-C11,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C11,115.pdf
- Description:
- DIODE ZENER 11V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:4,638
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Product details
Overview
BZV49-C11,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and regulation in power supply feedback paths. It delivers a nominal 11 V working voltage (10.4–11.6 V at 5 mA test current), with ±5% tolerance, 10–20 Ω differential resistance, and −5.4 to +7.4 mV/K temperature coefficient. Used in industrial power adapters and embedded voltage monitoring circuits.
For engineers reviewing the BZV49-C11,115 datasheet, BZV49-C11,115 pinout, BZV49-C11,115 application, or BZV49-C11,115 equivalent, key selection criteria include Zener voltage accuracy at 5 mA, thermal resistance (125 K/W junction-to-ambient), non-repetitive peak reverse power (40 W), and SOT89 thermal pad layout compatibility with PCB copper pour.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its breakdown threshold. Its SOT89 package includes an exposed collector pad (Pin 3) optimized for thermal conduction to PCB copper, enabling 1 W continuous power dissipation when mounted on a 2.5 cm² ceramic substrate.
The BZV49-C11,115 exhibits a negative-to-positive temperature coefficient crossing near 5.6 V - at 11 V, it shows a positive coefficient (+5.4 to +9.0 mV/K), making it suitable for temperature-compensated references when paired with negative-coefficient devices. Reverse leakage remains ≤0.1 μA at 8.8 V (80% of VZ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZtest | 10.4–11.6 V at 5 mA - defines regulation window under standard test conditions |
| rdif | 10–20 Ω - low dynamic impedance ensures minimal output voltage shift under load variation |
| SZ | +5.4 to +9.0 mV/K - positive tempco enables compensation in multi-Zener reference designs |
| Ptot | 1 W at Tamb = 25 °C - requires thermal design with PCB copper pour for sustained operation |
| PZSM | 40 W (100 μs pulse) - supports transient overvoltage clamping in surge-protected supplies |
| Cd | 85 pF at 1 MHz, 0 V - limits high-frequency noise filtering capability in fast-switching regulators |
| IR @ VR = 8.8 V | ≤0.1 μA - ensures low quiescent current in battery-backed monitoring circuits |
Pinout & Package
SOT89 plastic surface-mounted package with exposed thermal pad (Pin 3). Designed for high thermal transfer via soldered collector pad to PCB copper area (2.5 cm² recommended).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward bias connection; tied to lower-potential rail in shunt regulator configuration |
| 2 | Cathode | Connected to regulated node; reverse-biased during regulation to clamp voltage |
| 3 | Anode (thermal pad) | Electrically common with Pin 1; must be soldered to PCB copper for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| E24 series ±5% tolerance | Enables precise voltage selection across 37 standard values without custom calibration |
| Non-repetitive 40 W surge rating | Provides robust transient suppression in AC/DC front-end protection stages |
| SOT89 thermal pad (Pin 3) | Reduces Rth(j-a) to 125 K/W - critical for reliability in enclosed industrial enclosures |
| Low 0.1 μA leakage at 80% VZ | Minimizes standby power loss in always-on voltage supervision circuits |
| 150 °C max junction temperature | Supports operation in automotive under-hood and industrial motor drive environments |
Applications
| Industrial Power Supply Feedback | Microcontroller Voltage Monitoring |
|---|---|
Use Scenario: Regulating output of isolated flyback converter via optocoupler feedback loop. IC Role / Device Role / Timing Role: Shunt reference providing stable 11 V reference for TL431-like feedback comparator. Use Value: Tight 10.4–11.6 V tolerance ensures ±1% output regulation across line/load/temperature. | Use Scenario: Monitoring 12 V system rail for brown-out detection in PLC I/O modules. IC Role / Device Role / Timing Role: Zener-clamped input to comparator threshold circuit detecting undervoltage events. Use Value: Sub-μA leakage preserves battery backup runtime during extended sleep modes. |
| Automotive Lighting Control | Test Equipment Reference Source |
Use Scenario: Stabilizing bias voltage for LED driver IC in headlamp ECU. IC Role / Device Role / Timing Role: Precision voltage reference for current-sense amplifier offset trimming. Use Value: +5.4 to +9.0 mV/K tempco allows predictable drift compensation across −40 to +125 °C. | Use Scenario: Building calibrated 11 V reference in portable multimeter front-end. IC Role / Device Role / Timing Role: Primary shunt reference in buffered voltage divider network. Use Value: 10–20 Ω rdif ensures <0.1% reading error under 1 mA load variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ4689 (ON Semiconductor) | Same 11 V nominal, SOT-23 package, higher rdif (30 Ω), no thermal pad | Limited to ≤300 mW continuous; unsuitable for >100 mA regulation loads | Select when board space is constrained and thermal load is low |
| BZX84-C11 (Nexperia) | Same 11 V nominal, SOT-23 package, 10–20 Ω rdif, but only 350 mW Ptot | Cannot sustain 1 W continuous dissipation; requires derating above 60 °C ambient | Select for cost-sensitive consumer applications where full 1 W is not required |
Compared with MMBZ4689 and BZX84-C11, the BZV49-C11,115 uniquely supports 1 W continuous regulation with SOT89 thermal pad integration - essential for industrial power supplies requiring long-term stability without active cooling.
Availability
BZV49-C11,115 is available at Aetrix Electronics and suitable for industrial power supplies, microcontroller voltage supervisors, automotive lighting controllers, and portable test equipment requiring stable component supply and long-lifecycle support.
Supply support for BZV49-C11,115 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
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for stable DC voltage reference in power conversion and monitoring systems where precision, thermal robustness, and long-term parametric consistency are critical.
FAQ
What is the maximum continuous reverse current the BZV49-C11,115 can handle at 25 °C?
The device has no specified maximum continuous reverse current - instead, it is rated for 1 W total power dissipation at 25 °C ambient. At nominal 11 V, this corresponds to ~91 mA average Zener current. Derating is required above 25 °C per the 125 K/W junction-to-ambient thermal resistance.
Can the BZV49-C11,115 be used in place of a BZX84-C11 in an existing SOT-23 design?
No - the BZV49-C11,115 uses SOT89 packaging with three leads and an exposed thermal pad, while BZX84-C11 uses SOT-23 with two leads. PCB footprint, thermal layout, and soldering process are incompatible without redesign.
Does the BZV49-C11,115 have a guaranteed minimum Zener voltage at low test currents?
Yes - the datasheet specifies a minimum VZ of 10.4 V at IZtest = 5 mA. At lower currents (e.g., 1 mA), VZ drops due to rdif; typical curves show ~10.2 V at 1 mA, but this is not guaranteed.
Is the thermal pad (Pin 3) electrically isolated from the anode?
No - Pin 3 is electrically connected to Pin 1 (anode) and serves as the primary thermal conduction path. It must be soldered to a PCB copper pour tied to the same net as Pin 1 to achieve rated thermal performance.
BZV49-C11,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BZV49-C11,115 FAQ
1.How can I place an order for BZV49-C11,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C11,115 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 BZV49-C11,115 reliable?
The price and inventory of BZV49-C11,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C11,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C11,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C11,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C11,115?
BZV49-C11,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C11,115 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 BZV49-C11,115?
For technical support, including BZV49-C11,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C11,115 requirements.
6.How does Aetrix verify that BZV49-C11,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C11,115 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 BZV49-C11,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C11,115?
All BZV49-C11,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C11,115, 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 BZV49-C11,115 part is unused and in its original packaging.
Return procedure for BZV49-C11,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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