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Nexperia USA Inc. BZV49-C24,115
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- Part No.:
- BZV49-C24,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C24,115.pdf
- Description:
- DIODE ZENER 24V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:2,310
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Product details
Overview
BZV49-C24,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and stabilization in power supply rails. It delivers a nominal working voltage of 24 V (min 22.8 V, max 25.6 V) at 5 mA test current, with ±5% tolerance, 25 Ω typical differential resistance, and −1.25 mV/K temperature coefficient. Used in industrial power monitoring circuits requiring stable 24 V regulation under varying load and thermal conditions.
For engineers reviewing the BZV49-C24,115 datasheet, BZV49-C24,115 pinout, BZV49-C24,115 application, or BZV49-C24,115 equivalent, this page provides verified electrical parameters, thermal behavior, SOT89 terminal mapping, real-world use cases, and validated alternative parts - all grounded in Nexperia's 2005 product data sheet and post-2017 branding transition documentation.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode–anode terminals. Its 24 V nominal regulation point is specified at IZtest = 5 mA, with differential resistance of ≤70 Ω (max) and temperature coefficient of −1.25 mV/K (typical), indicating moderate negative drift over temperature.
The device supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses and continuous power dissipation of 1 W at Tamb = 25 °C on a 2.5 cm² ceramic substrate. Thermal resistance from junction to tie-point is 15 K/W, enabling effective heat transfer via the exposed collector pad in the SOT89 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 24 V (22.8 V min, 25.6 V max) - defines regulated output rail voltage under 5 mA test current |
| Differential Resistance (rdif) | ≤70 Ω (max) - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | −1.25 mV/K (typical) - quantifies voltage drift per degree Celsius rise in junction temperature |
| Test Current (IZtest) | 5 mA - standardized bias condition for VZ measurement and datasheet compliance |
| Reverse Current (IR) | ≤0.05 μA at VR = 18.8 V - ensures low leakage in standby or high-impedance sensing paths |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 μs - supports transient surge suppression in input protection stages |
| Total Power Dissipation (Ptot) | 1 W at Tamb = 25 °C - sets maximum steady-state thermal envelope on standard PCB layout |
Pinout & Package
SOT89 plastic surface-mounted package with three leads and an exposed collector pad for enhanced thermal conduction. Mounting on 2.5 cm² ceramic substrate required for rated 1 W operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Primary forward-current entry point; connected to lower-potential side in Zener regulation configuration |
| 2 | Cathode | Regulated output node; connected to higher-potential rail and load in standard shunt regulator topology |
| 3 | Anode | Second anode terminal tied internally to Pin 1 - enables dual-anode mechanical mounting and thermal path redundancy |
Key Features
| Feature | Design Value |
|---|---|
| E24 voltage range coverage | 37 types from 2.4 V to 75 V - enables precise selection across common industrial supply rails without custom design |
| ±5% tolerance series | Tight initial calibration reduces need for external trimming in cost-sensitive applications |
| Exposed thermal pad (Pin 3) | Enables direct thermal coupling to copper pour, lowering Rth(j-a) to 125 K/W with proper PCB layout |
| 1 W continuous power rating | Supports higher-current shunt regulation than standard 400 mW Zeners, reducing need for external pass transistors |
| Low 0.05 μA max reverse leakage at 18.8 V | Minimizes quiescent current draw in battery-backed or low-power monitoring circuits |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module Reference |
|---|---|
|
Use Scenario: Monitoring 24 V battery rail integrity in programmable logic controllers (PLCs) during brownout conditions. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable threshold for comparator-based undervoltage detection circuit. Use Value: Enables accurate 24 V ±5% trip point with <70 Ω dynamic impedance, minimizing false triggers due to line ripple. |
Use Scenario: Providing reference voltage for analog-to-digital conversion of sensor signals in BCM microcontrollers. IC Role / Device Role / Timing Role: Precision DC reference source for 10-bit ADC internal voltage scaling. Use Value: −1.25 mV/K tempco ensures <±0.3 V drift over −40 °C to +125 °C ambient, meeting AEC-Q101 functional accuracy targets. |
| Telecom Line Card Overvoltage Protection | Medical Diagnostic Equipment Bias Supply |
|
Use Scenario: Clamping transient surges on 24 V backplane distribution lines in modular telecom switches. IC Role / Device Role / Timing Role: Fast-response shunt limiter absorbing 40 W non-repetitive pulses per IEC 61000-4-5 Level 3. Use Value: 100 μs pulse handling capability protects downstream DC/DC converters without adding TVS diode overhead. |
Use Scenario: Generating stable bias for photodiode transimpedance amplifiers in portable ultrasound front-ends. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing amplifier offset and gain stability. Use Value: 0.05 μA max reverse leakage prevents signal injection errors in picoamp-level current sensing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4687-TP (Micro Commercial) | 24 V nominal, SOD-123 package, 500 mW Ptot, 100 Ω max rdif | Limited to lower-power regulation; unsuitable for 1 W continuous duty or high-surge environments | Select when board space is constrained and thermal budget allows derating below 500 mW |
| BZX84-C24 (Nexperia) | 24 V nominal, SOT23 package, 300 mW Ptot, 80 Ω max rdif, no exposed thermal pad | Higher thermal resistance (375 K/W) limits use in thermally demanding industrial enclosures | Select only for low-power signal-level referencing where SOT23 footprint is mandatory |
Compared with MMSZ4687-TP and BZX84-C24, the BZV49-C24,115 offers 3.3× higher continuous power handling, 2.8× lower differential resistance, and integrated thermal pad - making it the sole choice for 24 V shunt regulation in industrial-grade power supplies requiring sustained 1 W operation and robust surge immunity.
Availability
BZV49-C24,115 is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive body control modules, telecom line card protection, and medical diagnostic equipment bias supply requiring stable component supply and long-term lifecycle continuity.
Supply support for BZV49-C24,115 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, formed in 2017 from the former NXP Standard Products business, with focus on automotive, industrial, computing, and consumer markets.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered specifically for medium-power shunt regulation in space-constrained SMD applications where thermal performance and E24 voltage granularity are critical.
FAQ
What is the maximum continuous power dissipation for BZV49-C24,115?
The BZV49-C24,115 has a total power dissipation rating of 1 W at Tamb = 25 °C when mounted on a 2.5 cm² ceramic substrate. Derating is required above 25 °C at 8 mW/°C based on Rth(j-a) = 125 K/W. Exceeding this limit risks thermal runaway and permanent junction damage.
How does the dual-anode pin configuration (Pins 1 and 3) function electrically?
Pins 1 and 3 are internally shorted anodes, not independent terminals. This configuration provides mechanical symmetry and dual thermal anchoring points to the PCB, improving solder joint reliability and heat spreading - but electrically functions as a single anode node with no isolation or switching capability between them.
Can BZV49-C24,115 be used in series or parallel configurations for higher voltage or current handling?
No - the BZV49-C24,115 is not characterized for series or parallel operation. Zener matching tolerances and thermal coupling variations cause uneven voltage sharing and current hogging. For higher voltage, select a single higher-VZ part (e.g., BZV49-C30); for higher current, add an external series pass transistor.
What is the significance of the "24Y" marking code on the device body?
"24Y" is the manufacturer's top-side marking for BZV49-C24,115, where "24" denotes the nominal 24 V Zener voltage and "Y" identifies the specific E24 tolerance series within the BZV49 family. This code is laser-etched on the SOT89 package and matches Nexperia's official marking table in the 2005 datasheet.
BZV49-C24,115 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):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 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-C24,115 FAQ
1.How can I place an order for BZV49-C24,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C24,115 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-C24,115 reliable?
The price and inventory of BZV49-C24,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C24,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C24,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C24,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C24,115?
BZV49-C24,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C24,115 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-C24,115?
For technical support, including BZV49-C24,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C24,115 requirements.
6.How does Aetrix verify that BZV49-C24,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C24,115 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-C24,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C24,115?
All BZV49-C24,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C24,115, 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-C24,115 part is unused and in its original packaging.
Return procedure for BZV49-C24,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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