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Nexperia USA Inc. BZX8450-C5V6VL
- Part No.:
- BZX8450-C5V6VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C5V6VL.pdf
- Description:
- DIODE ZENER 5.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:39,960
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Product details
Overview
BZX8450-C5V6VL from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, designed for precision biasing and voltage reference in portable electronics. It delivers 5.6 V nominal regulation at 50 µA test current, with ±5 % tolerance, 400 Ω differential resistance at 5 mA, and 2.0 µA max reverse leakage at 4.0 V, enabling stable operation in battery-powered sensor nodes and microcontroller reset circuits.
For engineers reviewing the BZX8450-C5V6VL datasheet, BZX8450-C5V6VL pinout, BZX8450-C5V6VL application, or BZX8450-C5V6VL equivalent, key selection criteria include its low 50 µA test current specification, intentional leakage optimization for noise reduction per AN90031, SOT23 footprint compatibility, and thermal resistance of 330 K/W to solder point - all critical for space-constrained, low-power analog subsystems.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 5.6 V regulation voltage specified at IZ = 50 µA, optimized for ultra-low-bias applications where traditional 5 mA test conditions are impractical. Its differential resistance of 400 Ω at 5 mA and temperature coefficient of −2.0 mV/K reflect tight process control for stable reference performance across ambient temperatures from −55 °C to +150 °C.
The device features an intentionally elevated leakage current profile (per AN90031) compared to standard B-series variants, reducing switching transients and high-frequency noise in signal conditioning paths. Its SOT23-3 package includes a dedicated cathode terminal (Pin 3), anode (Pin 1), and internally unconnected Pin 2 - a configuration validated for minimal parasitic coupling in precision analog layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 5.6 V at IZ = 50 µA - enables accurate low-current biasing without loading weak sources |
| Tolerance | ±5 % - supports cost-sensitive designs where tighter tolerance is unnecessary |
| Differential Resistance | 400 Ω at IZ = 5 mA - defines output impedance under moderate load, critical for reference stability |
| Reverse Leakage Current | 2.0 µA max at VR = 4.0 V - confirms low standby power draw in always-on circuits |
| Total Power Dissipation | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction-to-Solder-Point Thermal Resistance | 330 K/W - determines temperature rise above PCB copper during sustained conduction |
| Forward Voltage | 0.9 V max at IF = 10 mA - defines anode-cathode drop when used in forward conduction (e.g., clamping) |
Pinout & Package
SOT23-3 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, single-sided FR4 mounting with 70 μm tin-plated copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Positive terminal for forward conduction; connected to lower-potential node in Zener regulation |
| 2 | Not Connected (n.c.) | Internally isolated - must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Regulated output node in reverse-bias operation; ties to system ground or reference plane |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | 50 µA Zener voltage rating - eliminates need for high-bias current sources in IoT sensor front-ends |
| Optimized leakage profile | Intentional minor leakage rise (AN90031) - reduces switching noise and improves transient response in feedback paths |
| Thermal performance | 330 K/W junction-to-solder-point resistance - enables reliable operation up to 150 °C junction temperature with minimal copper area |
| Package compatibility | SOT23 footprint - ensures drop-in replacement for legacy Zeners and compatibility with high-volume pick-and-place assembly |
| Wide operating range | −55 °C to +150 °C ambient - supports industrial and automotive under-hood auxiliary circuits |
Applications
| Microcontroller Reset Circuit | Portable Sensor Biasing |
|---|---|
|
Use Scenario: Providing clean, low-drift reset threshold for ARM Cortex-M0+ MCUs in wearable health monitors. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage reference for external reset supervisor IC input. Use Value: 5.6 V regulation at 50 µA draws negligible current from coin-cell battery while maintaining ±5 % accuracy over −20 °C to +70 °C. |
Use Scenario: Supplying stable bias voltage to MEMS accelerometer analog front-end in asset-tracking tags. IC Role / Device Role / Timing Role: Functions as low-noise voltage reference for op-amp gain-setting network. Use Value: Intentional leakage optimization (AN90031) suppresses broadband noise, improving SNR by >3 dB versus standard Zeners. |
| USB-C Power Negotiation Reference | Industrial PLC Input Protection |
|
Use Scenario: Generating fixed 5.6 V reference for USB PD CC line voltage detection circuitry. IC Role / Device Role / Timing Role: Regulator diode establishes known threshold for comparator-based CC pin state decoding. Use Value: 400 Ω differential resistance ensures minimal voltage shift under varying CC pull-up currents (0–500 µA). |
Use Scenario: Clamping and regulating 24 V DC input signals in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Zener shunt element limits transient overvoltage while providing stable reference for ADC driver stage. Use Value: 250 mW power rating allows safe dissipation of 100 ms surges up to 40 W (per Fig. 1), meeting IEC 61000-4-5 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | Same 5.6 V/±5 % spec but rated at 5 mA test current; higher 500 Ω rdiff; no intentional leakage optimization | Lacks AN90031 noise-reduction profile; less suitable for low-current, high-SNR analog paths | Prefer BZX8450-C5V6VL where 50 µA test condition or fast-switching noise immunity is required |
| MMSZ5232B | 5.6 V/±5 %, 500 mW rating, 100 Ω rdiff at 20 mA; SOD-123 package (larger footprint) | Higher power handling but incompatible with dense SOT23 layouts; not optimized for sub-100 µA bias | Choose MMSZ5232B only when >250 mW dissipation or lower dynamic impedance at high current is mandatory |
Compared with BZX84-C5V6 and MMSZ5232B, BZX8450-C5V6VL uniquely balances ultra-low test current (50 µA), SOT23 size, and AN90031 noise-optimized leakage - making it the sole option for battery-powered systems requiring simultaneous precision, compactness, and signal integrity.
Availability
BZX8450-C5V6VL is available at Aetrix Electronics and suitable for portable sensor nodes, microcontroller reset circuits, and USB-C power negotiation references requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8450-C5V6VL 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 semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The BZX8450 series belongs to Nexperia's low-current Zener regulator family, engineered specifically for battery-powered and space-constrained applications demanding precision voltage references at microampere bias levels.
FAQ
What is the maximum continuous reverse power dissipation for BZX8450-C5V6VL?
The absolute maximum total power dissipation is 250 mW at ambient temperature ≤ 25 °C on a standard FR4 PCB with single-sided 70 μm copper. Derating is required above 25 °C at 2.0 mW/°C based on Rth(j-a) = 500 K/W, and junction temperature must not exceed 150 °C.
How does the "C" suffix in BZX8450-C5V6VL differ from "B"-series variants?
The "C" suffix denotes ±5 % tolerance and incorporates an intentional, controlled increase in reverse leakage current per application note AN90031. This design enhances switching speed and reduces high-frequency noise in analog signal paths, unlike the tighter ±2 % "B" series optimized for voltage accuracy over leakage behavior.
Can Pin 2 be left floating or must it be grounded on the PCB?
Pin 2 is internally not connected and must remain unconnected on the PCB - neither grounded nor tied to any net. Connecting it risks mechanical stress on the die bond wire or parasitic capacitance that degrades high-frequency noise performance, as confirmed in Table 2 and Figure 9 of the datasheet.
Is BZX8450-C5V6VL suitable for automotive applications?
No - this part is not automotive-qualified. The datasheet explicitly states in Section 14 that non-automotive qualified products like BZX8450-C5V6VL are neither tested nor warranted for automotive use, including under-hood environments. Automotive designs require parts explicitly marked AEC-Q200 qualified.
BZX8450-C5V6VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8450
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C5V6VL FAQ
1.How can I place an order for BZX8450-C5V6VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C5V6VL 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 BZX8450-C5V6VL reliable?
The price and inventory of BZX8450-C5V6VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C5V6VL is usually 5 days.
3.What payment methods are accepted for BZX8450-C5V6VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C5V6VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C5V6VL?
BZX8450-C5V6VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C5V6VL 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 BZX8450-C5V6VL?
For technical support, including BZX8450-C5V6VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C5V6VL requirements.
6.How does Aetrix verify that BZX8450-C5V6VL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C5V6VL 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 BZX8450-C5V6VL meets industry standards.
7.What is the process for return or replacement of BZX8450-C5V6VL?
All BZX8450-C5V6VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C5V6VL, 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 BZX8450-C5V6VL part is unused and in its original packaging.
Return procedure for BZX8450-C5V6VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C5V6VL 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
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