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Nexperia USA Inc. BZV49-C56,115
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- Part No.:
- BZV49-C56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C56,115.pdf
- Description:
- DIODE ZENER 56V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:1,865
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Product details
Overview
BZV49-C56,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and overvoltage protection in power supply rails. It delivers a nominal working voltage of 56 V at 2 mA test current, with ±5% tolerance, 70 Ω typical differential resistance, and −0.3 mV/K temperature coefficient. Used in industrial power converters and automotive body control modules where stable 56 V regulation is required.
For engineers reviewing the BZV49-C56,115 datasheet, BZV49-C56,115 pinout, BZV49-C56,115 application, or BZV49-C56,115 equivalent, this page provides verified electrical parameters, thermal behavior, SOT89 terminal mapping, real-world use cases, and validated alternative parts for voltage reference design and ESD-robust clamping circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 2 mA, delivering precise 56 V regulation under stable thermal conditions (Tj = 25 °C). Its low temperature coefficient (−0.3 mV/K) minimizes drift across operating temperatures, and its 70 Ω differential resistance ensures predictable dynamic response during load transients.
The device supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses, enabling transient surge suppression in 24–48 V system rails. Mounted on a ceramic substrate (2.5 cm²), it achieves Rth(j-tp) = 15 K/W, allowing reliable operation up to Tj = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 52.0–60.0 V at IZtest = 2 mA - defines regulated output voltage range for feedback or clamp circuits |
| Differential Resistance (rdif) | 70 Ω max - determines output impedance and load regulation error under varying current |
| Temperature Coefficient (SZ) | −0.3 mV/K - quantifies voltage drift per degree Celsius, critical for wide-temperature designs |
| Total Power Dissipation (Ptot) | 1 W at Tamb = 25 °C - sets maximum continuous DC power handling on standard PCB layout |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 μs - enables short-duration surge clamping without failure |
| Reverse Current (IR) | ≤ 0.05 μA at VR = 42 V - ensures minimal leakage in high-impedance bias networks |
| Junction Temperature (Tj) | 150 °C max - defines upper thermal limit for reliability in enclosed enclosures |
Pinout & Package
SOT89 plastic surface-mounted package with exposed collector pad for enhanced thermal conduction; 3-lead configuration optimized for medium-power dissipation on standard FR-4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; forms cathode-anode junction for Zener action |
| 2 | Cathode | Connected to regulated output or protected rail; carries full reverse current during regulation/clamping |
| 3 | Anode | Second anode terminal tied internally to Pin 1 - used for mechanical stability and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| E24 ±5% voltage tolerance | Enables interchangeability across 37 standard Zener values without custom calibration |
| 1 W continuous power rating | Supports stable regulation in 50–100 mA supply rails without heatsinking |
| Low leakage (≤0.05 μA @ 42 V) | Preserves accuracy in high-impedance voltage divider or sensing circuits |
| SOT89 thermal performance (Rth(j-tp) = 15 K/W) | Allows >800 mW derated power at 85 °C ambient on 2.5 cm² ceramic substrate |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module |
|---|---|
Use Scenario: Regulating auxiliary 56 V rail in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Zener reference diode providing stable voltage setpoint for linear regulator feedback loop. Use Value: Maintains ±1.5% output accuracy over −40 to +85 °C due to low temperature coefficient and tight tolerance. | Use Scenario: Overvoltage clamping on LIN bus transceiver supply line subjected to load-dump transients. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 40 W surges for 100 μs without degradation. Use Value: Prevents IC latch-up by limiting rail voltage to ≤60 V during ISO 7637-2 Pulse 5a events. |
| Test Equipment Reference Source | Telecom DC-DC Converter Feedback |
Use Scenario: Precision 56 V reference in bench multimeter internal ADC calibration circuit. IC Role / Device Role / Timing Role: Stable voltage reference for DAC output scaling and offset trimming. Use Value: Enables <0.05% full-scale error over 1000-hour burn-in due to low long-term drift. | Use Scenario: Output voltage sensing node in isolated 48 V → 56 V boost converter for remote radio units. IC Role / Device Role / Timing Role: Zener-based feedback divider element setting output regulation point. Use Value: Compensates for optocoupler CTR variation via matched temperature coefficient with adjacent resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5256B,115 | Same 56 V nominal voltage, SOT23 package, 0.35 W Ptot, higher rdif (100 Ω) | Limited to low-power signal-level references; unsuitable for >100 mA regulation | Select when board space is constrained and power < 350 mW |
| BZX84-C56,115 | Same 56 V, SOT23, 0.3 W Ptot, ±5% tolerance, but no guaranteed 40 W pulse rating | Not rated for automotive load-dump clamping; lacks pulse power validation | Select for cost-sensitive consumer applications with benign thermal environments |
Compared with MMBZ5256B,115 and BZX84-C56,115, the BZV49-C56,115 provides 2.9× higher continuous power and validated 40 W transient capability-making it the only option among the three qualified for industrial 1 W regulation and automotive-grade surge suppression.
Availability
BZV49-C56,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, test equipment reference circuits, and telecom DC-DC converter feedback requiring stable component supply with traceable lot history and extended lifecycle support.
Supply support for BZV49-C56,115 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 semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive and industrial markets.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered specifically for medium-power Zener regulation and transient clamping in harsh-environment applications where thermal robustness and pulse survivability are critical.
FAQ
What is the maximum continuous reverse current the BZV49-C56,115 can sustain at 85 °C ambient?
At 85 °C ambient, the BZV49-C56,115 sustains up to 17 mA continuous reverse current before exceeding its 150 °C junction limit. This is derived from its 125 K/W junction-to-ambient thermal resistance and 1 W total power rating, with derating applied per the thermal curve in Figure 2 of the datasheet.
Does the BZV49-C56,115 meet AEC-Q200 stress testing requirements for automotive use?
No-while widely used in automotive body electronics, the BZV49-C56,115 is not officially AEC-Q200 qualified. For Q200-compliant alternatives, consider Nexperia's PZUxxL3A series, which undergoes full temperature cycling, humidity bias, and mechanical shock testing per the standard.
Can Pin 3 be left unconnected or used as a separate thermal pad?
No-Pin 3 is electrically tied to Pin 1 (anode) and must be soldered to the same net. It serves as both a mechanical anchor and primary thermal path; floating it degrades thermal resistance by >40% and risks mechanical delamination during thermal cycling.
How does the −0.3 mV/K temperature coefficient impact regulation accuracy over −40 to +125 °C?
Over that range, the coefficient causes a total shift of −51 mV (−0.3 mV/K × 170 K), resulting in a 56 V nominal output varying from 55.95 V to 55.90 V. This 0.09% drift is acceptable for non-precision regulation but insufficient for metrology-grade references.
BZV49-C56,115 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):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 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-C56,115 FAQ
1.How can I place an order for BZV49-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C56,115 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-C56,115 reliable?
The price and inventory of BZV49-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C56,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C56,115?
BZV49-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C56,115 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-C56,115?
For technical support, including BZV49-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C56,115 requirements.
6.How does Aetrix verify that BZV49-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C56,115 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-C56,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C56,115?
All BZV49-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C56,115, 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-C56,115 part is unused and in its original packaging.
Return procedure for BZV49-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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