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Nexperia USA Inc. BZV49-C30,115
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- Part No.:
- BZV49-C30,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C30,115.pdf
- Description:
- DIODE ZENER 30V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:822
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Product details
Overview
BZV49-C30,115 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 30 V (min 28.0 V, max 32.0 V) at 2 mA test current, with differential resistance ≤30 Ω, temperature coefficient of +24.4 to +29.4 mV/K, and total power dissipation up to 1 W at 25 °C ambient.
For engineers reviewing the BZV49-C30,115 datasheet, BZV49-C30,115 pinout, BZV49-C30,115 application, or BZV49-C30,115 equivalent, this device serves as a stable shunt regulator in low-to-medium current feedback loops, battery protection circuits, and overvoltage clamp stages where ±5% tolerance and thermal stability across −65 °C to +150 °C are required.
Technical Context
The BZV49-C30,115 operates as a silicon planar Zener diode optimized for stable reverse-bias regulation. Its junction temperature range spans −65 °C to +150 °C, and it exhibits a positive temperature coefficient (+24.4 to +29.4 mV/K) above ~5.6 V, enabling predictable drift compensation in multi-diode references.
Thermal design relies on its SOT89 package's exposed collector pad: Rth(j-tp) = 15 K/W and Rth(j-a) = 125 K/W (on 2.5 cm² ceramic substrate), supporting reliable 1 W continuous dissipation when properly heatsinked. Non-repetitive peak reverse power handling reaches 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage VZ | 28.0 V to 32.0 V at IZtest = 2 mA - defines regulated output voltage window under standard test conditions |
| Differential Resistance rdif | ≤30 Ω - ensures minimal output voltage variation under load current changes (e.g., ±10 mA shift causes ≤0.3 V drift) |
| Temperature Coefficient SZ | +24.4 to +29.4 mV/K - quantifies voltage drift per degree Celsius rise, critical for high-accuracy references |
| Total Power Dissipation Ptot | 1 W at Tamb = 25 °C - sets maximum steady-state thermal load before derating; requires PCB copper area for heat spreading |
| Reverse Current IR | ≤0.05 μA at VR = 21 V - confirms low leakage in sub-regulation bias, preserving efficiency in standby modes |
| Diode Capacitance Cd | 50 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and transient response in regulation loops |
| Non-repetitive Peak IZSM | 21.0 A at tp = 100 μs - enables robust surge suppression in input-stage clamping applications |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package with exposed collector pad for enhanced thermal conduction; 3-terminal configuration optimized for medium-power dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias regulation; carries forward current during fault or startup |
| 2 | Cathode | Regulated output node; connected to supply rail being stabilized; carries reverse Zener current during operation |
| 3 | Anode | Electrically tied to Pin 1; provides second anode connection for mechanical stability and improved thermal path via PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| E24 ±5% voltage tolerance | Ensures interchangeability across 37 variants (2.4 V–75 V) without custom calibration in production |
| 1 W continuous power rating | Supports regulation in 5–50 mA load ranges typical of op-amp references, microcontroller reset circuits, and sensor biasing |
| Low dynamic impedance (≤30 Ω) | Maintains <±1% output stability under ±5 mA load transients, critical for analog signal chain references |
| Positive tempco (+24.4–+29.4 mV/K) | Enables predictable tracking with other positive-coefficient components in compensated reference designs |
| SOT89 thermal pad | Reduces junction-to-PCB thermal resistance by ~40% vs. SOT23, enabling higher sustained power in compact layouts |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 30 V reference for adjustable DC-DC converter feedback networks in industrial power modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise error amplifier setpoint; operates continuously in reverse breakdown. Use Value: Maintains ±0.5% output regulation over line/load/temperature with <30 Ω dynamic impedance limiting loop gain variation. |
Use Scenario: Protecting 24 V CAN bus transceivers from load-dump surges exceeding 40 V in automotive body control units. IC Role / Device Role / Timing Role: Fast-acting crowbar element clamping transient spikes to ≤32 V before IC damage thresholds are exceeded. Use Value: Absorbs 40 W non-repetitive pulses (100 μs) without degradation, preventing downstream component failure. |
| Battery Protection Circuit | Microcontroller Reset Generator |
|
Use Scenario: Monitoring lithium-ion pack voltage to trigger disconnect MOSFETs when cell voltage exceeds 30 V during charging. IC Role / Device Role / Timing Role: Precision threshold detector feeding comparator input; reverse-biased to generate stable trip voltage. Use Value: Delivers 30 V trip point with <±1.5% error over −40 °C to +85 °C, eliminating need for trimming resistors. |
Use Scenario: Generating clean reset pulse for ARM Cortex-M0 microcontrollers during 3.3 V rail brownout recovery. IC Role / Device Role / Timing Role: Regulated voltage source for RC-based reset timing circuit; supplies stable bias to reset supervisor IC. Use Value: Ensures reset assertion remains valid until 30 V rail stabilizes, preventing premature MCU boot under marginal supply conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5262B,115 | Same 30 V nominal Zener voltage but SOT23 package; lower Ptot = 350 mW; rdif ≈ 45 Ω | Limited to ≤10 mA loads; unsuitable for >0.35 W continuous dissipation or surge clamping | Select when board space is critical and power demand is low; avoid for industrial power rails |
| BZX84-C30,115 | SOT23 package; same 30 V rating but higher rdif (≤40 Ω); Ptot = 300 mW; no thermal pad | Cannot sustain >7 mA continuous current without derating; lacks thermal margin for surge events | Choose for cost-sensitive consumer electronics where 300 mW suffices and thermal performance is secondary |
Compared with MMBZ5262B,115 and BZX84-C30,115, the BZV49-C30,115 provides 2.9× higher continuous power and 30% lower dynamic impedance in a thermally enhanced SOT89 package-making it the only option among the three suitable for 20–50 mA regulation or repetitive transient suppression.
Availability
BZV49-C30,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, battery management systems, and embedded microcontroller reference circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZV49-C30,115 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, industrial, and computing markets.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for stable shunt regulation in power management subsystems where precision, thermal robustness, and E24-standardized voltage selection are essential.
FAQ
What is the maximum continuous reverse current the BZV49-C30,115 can handle at 25 °C?
The device supports continuous Zener current up to 250 mA, calculated from its 1 W power rating and 30 V nominal voltage (P = V × I → I = 1 W / 30 V ≈ 33 mA), but the absolute maximum rating specifies IF = 250 mA forward and IZ limited by thermal design. Practical continuous reverse current is ~33 mA at full 1 W dissipation; higher currents require derating per Rth(j-a) = 125 K/W.
Can the BZV49-C30,115 be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, VZ matching tolerance (±5%) causes current hogging. Parallel operation risks thermal runaway; use a single higher-rated device or external current-sharing resistors if higher power is needed.
How does the SOT89 package improve thermal performance over SOT23 alternatives?
The SOT89's exposed collector pad (Pin 3) provides direct thermal conduction to PCB copper, reducing Rth(j-a) to 125 K/W versus ~300 K/W for SOT23. This allows 1 W continuous dissipation with modest copper area, whereas SOT23 versions like BZX84-C30 are limited to 300 mW without aggressive heatsinking.
Is the BZV49-C30,115 suitable for precision voltage reference applications?
It provides ±5% initial tolerance and +24.4 to +29.4 mV/K temperature coefficient-adequate for general regulation but not metrology-grade references. For precision use, pair it with trimming resistors or select a bandgap reference IC; its low rdif (≤30 Ω) and stable tempco support moderate-accuracy designs like power supply feedback or reset thresholds.
BZV49-C30,115 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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-C30,115 FAQ
1.How can I place an order for BZV49-C30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C30,115 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-C30,115 reliable?
The price and inventory of BZV49-C30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C30,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C30,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C30,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C30,115?
BZV49-C30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C30,115 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-C30,115?
For technical support, including BZV49-C30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C30,115 requirements.
6.How does Aetrix verify that BZV49-C30,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C30,115 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-C30,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C30,115?
All BZV49-C30,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C30,115, 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-C30,115 part is unused and in its original packaging.
Return procedure for BZV49-C30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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