My Inquiry
My Account
Nexperia USA Inc. BZV49-C4V3,115
SOT89.jpg)
- Part No.:
- BZV49-C4V3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C4V3,115.pdf
- Description:
- DIODE ZENER 4.3V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:1
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZV49-C4V3,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and regulation at nominal 4.3 V with ±5% tolerance, 80–90 Ω differential resistance, and 3 mA test current. It delivers stable regulation in low-current power supply rails and sensor bias networks.
For engineers reviewing the BZV49-C4V3,115 datasheet, BZV49-C4V3,115 pinout, BZV49-C4V3,115 application, or BZV49-C4V3,115 equivalent, key selection criteria include Zener voltage accuracy at 3 mA, thermal resistance (125 K/W), non-repetitive peak reverse power (40 W), and SOT89 thermal pad compatibility with PCB copper pour.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 4.0–4.6 V reference across load variations. Its temperature coefficient is −3.5 to −2.5 mV/K, indicating negative drift with rising junction temperature - critical for ambient-compensated references.
The device uses silicon planar epitaxial construction with a 3-lead SOT89 package featuring an exposed collector pad for enhanced thermal conduction. It supports continuous forward current up to 250 mA and withstands non-repetitive surge currents up to 1.0 A at 100 μs pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.0–4.6 V at IZtest = 3 mA - defines usable regulation window under standard test conditions |
| Differential Resistance (rdif) | 80–90 Ω - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | −3.5 to −2.5 mV/K - quantifies voltage drift per degree Celsius rise in junction temperature |
| Total Power Dissipation (Ptot) | 1 W at Tamb = 25 °C on ceramic substrate - sets maximum steady-state thermal budget |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W at tp = 100 μs - enables transient overvoltage clamping without failure |
| Reverse Current (IR) | ≤3 μA at VR = 1.0 V - confirms low leakage in sub-threshold blocking state |
| Junction-to-Ambient Thermal Resistance | 125 K/W - defines temperature rise per watt under standard mounting conditions |
Pinout & Package
Package: SOT89 (SC-62), plastic surface-mounted with exposed thermal pad (Pin 3) for improved heat transfer. Dimensions per JEDEC TO-243 outline: 4.6 × 2.6 × 1.6 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward current entry point; connected to lower-potential side in regulation configuration |
| 2 | Cathode | Reverse-bias terminal; connected to regulated output node and current-limiting resistor |
| 3 | Anode (thermal pad) | Electrically tied to Pin 1; provides mechanical anchoring and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| E24 Standard Voltage Range | Part of 37-type series covering 2.4–75 V - ensures design reuse across multiple voltage nodes |
| ±5% Tolerance | Tight initial calibration without trimming - reduces need for post-assembly adjustment |
| 1 W Continuous Power Rating | Enables direct use in 5–12 V rail regulation without external heatsinking in moderate ambient |
| Low Capacitance (450 pF) | Minimizes high-frequency loading in signal-path references and feedback networks |
| SOT89 Thermal Pad | Reduces junction-to-PCB thermal resistance - improves long-term reliability under sustained load |
Applications
| Power Supply Reference | Sensor Bias Network |
|---|---|
Use Scenario: Providing stable 4.3 V reference for linear regulators or ADC reference inputs in industrial power modules. IC Role / Device Role / Timing Role: Zener voltage reference element establishing precise DC potential for downstream analog circuitry. Use Value: Maintains <±1% output stability over 0–70 °C ambient due to predictable −2.5 mV/K tempco and low rdif. | Use Scenario: Biasing bridge-based pressure or temperature sensors requiring low-noise, fixed excitation voltage. IC Role / Device Role / Timing Role: Precision shunt regulator supplying constant current to sensor elements via series resistor. Use Value: Delivers <3 μA leakage at 1 V reverse bias - prevents sensor offset errors in microamp-level bias paths. |
| Overvoltage Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting 3.3 V or 5 V I/O pins against ESD or inductive transients in motor control interfaces. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in avalanche breakdown during surge events. Use Value: Withstands 40 W non-repetitive peak power at 100 μs - clamps >10 V spikes without degradation. | Use Scenario: Generating clean reset signal for ARM Cortex-M microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Threshold detector that triggers reset IC or GPIO when supply drops below 4.0 V. Use Value: Guaranteed 4.0 V minimum Zener voltage ensures reliable reset assertion before MCU functional failure. |
Availability
BZV49-C4V3,115 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, motor drive protection circuits, and embedded reset management systems requiring stable component supply and long-lifecycle support.
Supply support for BZV49-C4V3,115 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, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer applications.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for high-reliability DC voltage stabilization in space-constrained SMD designs where thermal performance and parametric consistency are critical.
FAQ
What is the maximum continuous power dissipation for BZV49-C4V3,115?
The BZV49-C4V3,115 has a total power dissipation rating of 1 W at ambient temperature of 25 °C when mounted on a 2.5 cm² ceramic substrate. Derating is required above 25 °C at 8 mW/°C based on its 125 K/W junction-to-ambient thermal resistance.
Is BZV49-C4V3,115 pin-compatible with other SOT89 Zener diodes?
Yes - it follows the standard SOT89 pinout (Pin 1: anode, Pin 2: cathode, Pin 3: anode/thermal pad) used across Nexperia's BZV49 series and compatible with industry-standard SOT89 footprints. Mechanical and thermal pad layout matches JEDEC TO-243 specifications.
What is the typical Zener test current and why is it important?
The specified test current is 3 mA. This value is used to measure VZ, rdif, and temperature coefficient under standardized conditions. Operating significantly above or below this current alters regulation voltage and dynamic impedance - critical for precision reference design.
Can BZV49-C4V3,115 be used in place of a 4.3 V TL431 shunt regulator?
No - the BZV49-C4V3,115 is a passive two-terminal Zener diode, while the TL431 is an active three-terminal programmable shunt regulator with adjustable threshold and higher accuracy. They differ fundamentally in architecture, temperature stability, and current-sourcing capability.
BZV49-C4V3,115 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):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 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-C4V3,115 FAQ
1.How can I place an order for BZV49-C4V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C4V3,115 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-C4V3,115 reliable?
The price and inventory of BZV49-C4V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C4V3,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C4V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C4V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C4V3,115?
BZV49-C4V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C4V3,115 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-C4V3,115?
For technical support, including BZV49-C4V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C4V3,115 requirements.
6.How does Aetrix verify that BZV49-C4V3,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C4V3,115 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-C4V3,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C4V3,115?
All BZV49-C4V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C4V3,115, 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-C4V3,115 part is unused and in its original packaging.
Return procedure for BZV49-C4V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV49-C4V3,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
