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Nexperia USA Inc. BZX38450-C2V7F
- Part No.:
- BZX38450-C2V7F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX38450-C2V7F.pdf
- Description:
- DIODE ZENER 2.7V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,297
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Product details
Overview
BZX38450-C2V7F from Nexperia is a low-current Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision biasing and voltage reference in ultra-low-power circuits. It delivers a nominal 2.7 V regulation at 50 µA test current, with ±2 % tolerance, 600 Ω dynamic impedance at 5 mA, and 190 pF capacitance at 0 V - enabling stable operation in portable battery-powered sensor nodes and microcontroller reset circuits.
For engineers reviewing the BZX38450-C2V7F datasheet, BZX38450-C2V7F pinout, BZX38450-C2V7F application, or BZX38450-C2V7F equivalent, key selection criteria include its low 50 µA test current, tight ±2 % tolerance, SOD323 footprint compatibility, and specified leakage behavior optimized for noise-sensitive analog front-ends.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable reverse-bias voltage across its cathode-anode terminals under varying load conditions. Its regulation is defined at IZ = 50 µA, with differential resistance of ≤600 Ω at 5 mA and temperature coefficient of −3.5 mV/K - indicating predictable, negative drift over temperature.
The BZX38450-C2V7F belongs to the "C" tolerance series, featuring intentional minor leakage current enhancement per AN90031 to improve switching speed and reduce noise in signal conditioning paths. It is rated for 300 mW total power dissipation on FR4 PCB with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.7 V at IZ = 50 µA - defines precise reference point for low-bias analog circuits |
| Tolerance | ±2 % - ensures tight voltage accuracy without post-calibration in portable designs |
| Differential Resistance | ≤600 Ω at IZ = 5 mA - limits output voltage variation under small load changes |
| Forward Voltage | ≤0.9 V at IF = 10 mA - enables use as low-drop clamp or protection diode |
| Capacitance | 190 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| Power Dissipation | 300 mW at Tamb ≤ 25 °C - sets maximum continuous thermal load on standard PCB |
| Reverse Leakage | ≤1.0 µA at VR = 2.0 V - supports ultra-low-quiescent-current standby modes |
Pinout & Package
The BZX38450-C2V7F uses the SOD323 (SC-76) surface-mount plastic package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, with cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables direct connection to high-impedance MCU GPIOs or battery monitoring dividers |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching transients and improves SNR in ADC reference paths |
| Tight voltage tolerance | ±2 % (C-series) - eliminates need for binning or trimming in production calibration |
| Small-footprint packaging | SOD323 outline - saves board space in wearables and IoT edge nodes with strict area constraints |
| Thermal robustness | 150 °C max junction temperature - supports operation in sealed enclosures without active cooling |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 2.7 V bias to MEMS accelerometer analog front-end in BLE-enabled wearable. IC Role / Device Role / Timing Role: Shunt Zener reference supplying clean, low-noise DC bias independent of battery voltage sag. Use Value: Maintains sensor full-scale accuracy across 2.0–3.6 V Li-ion discharge curve with <1.5 mV drift due to ±2 % tolerance and −3.5 mV/K TC. | Use Scenario: Generating precise reset threshold for ARM Cortex-M0+ MCU in energy-harvesting node. IC Role / Device Role / Timing Role: Voltage reference input to dedicated reset supervisor IC (e.g., MAX809). Use Value: Enables reliable brown-out detection at exactly 2.7 V with no external resistor divider, reducing component count and leakage error. |
| Low-Power ADC Reference | RF Front-End Bias Stabilization |
Use Scenario: Supplying reference voltage to 12-bit SAR ADC in battery-operated environmental monitor. IC Role / Device Role / Timing Role: Low-noise, low-current Zener source replacing higher-power bandgap references. Use Value: Delivers 190 pF capacitance and <1 µA leakage at 2.0 V - minimizes reference settling time and idle current draw. | Use Scenario: Stabilizing gate bias for GaN HEMT driver in compact 2.4 GHz ISM-band transmitter. IC Role / Device Role / Timing Role: Low-capacitance shunt regulator clamping bias rail against RF coupling-induced fluctuations. Use Value: 190 pF capacitance and fast transient response suppress VGS ripple without degrading RF bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V7 | Same 2.7 V nominal, but ±5 % tolerance and higher rdiff (≤1000 Ω) | Acceptable where cost sensitivity outweighs voltage accuracy requirements | Choose for non-critical biasing where ±5 % drift is tolerable and BOM cost reduction is prioritized |
| MMSZ4684T1G | 2.7 V nominal, ±5 %, 350 mW rating, SOD-123 package (larger footprint) | Requires PCB layout change; higher power margin but less space-efficient | Prefer when thermal headroom >300 mW is needed or existing SOD-123 land pattern is fixed |
Compared with BZX38450-C2V7F, the BZX384-B2V7 trades tighter regulation for lower unit cost, while MMSZ4684T1G offers higher power handling at the expense of board area - making the C2V7F optimal for space-constrained, accuracy-critical low-power systems.
Availability
BZX38450-C2V7F is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power ADC reference applications requiring stable component supply across extended production lifecycles.
Supply support for BZX38450-C2V7F 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 automotive-qualified and energy-efficient components.
The BZX38450 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-powered and space-constrained applications demanding tight voltage accuracy at microampere bias levels.
FAQ
What is the maximum reverse voltage the BZX38450-C2V7F can withstand before breakdown?
The BZX38450-C2V7F has a nominal Zener voltage of 2.7 V at 50 µA, with guaranteed minimum and maximum values of 2.565 V and 2.835 V respectively. Its absolute maximum non-repetitive peak reverse voltage is not specified separately; instead, it is limited by the 40 W non-repetitive surge rating at 100 µs pulse width and the 300 mW continuous power dissipation limit. Operation beyond 2.835 V under regulation requires current limiting to avoid exceeding Ptot.
Can the BZX38450-C2V7F be used in forward conduction mode?
Yes - the BZX38450-C2V7F exhibits a forward voltage of ≤0.9 V at 10 mA, consistent with standard silicon diode behavior. It is commonly used in forward mode for ESD protection or polarity protection in low-voltage rails, though its primary design purpose remains reverse-bias Zener regulation. Forward current must remain within the 250 mA absolute maximum rating.
How does the "C" suffix differ from "B" in the BZX38450 series?
The "C" suffix denotes ±2 % voltage tolerance and incorporates an intentional minor rise in leakage current per application note AN90031, optimizing switching speed and noise performance. In contrast, "B" parts offer ±5 % tolerance and standard leakage characteristics. Both share identical package, power rating, and thermal specs, but only "C" variants meet tight-accuracy and low-noise requirements for precision analog functions.
Is the BZX38450-C2V7F suitable for automotive applications?
No - the BZX38450-C2V7F is not automotive-qualified. Nexperia explicitly states in its legal disclaimers that unless a product data sheet expressly declares automotive qualification, the device is unsuitable for automotive use. It lacks AEC-Q200 stress testing, extended temperature validation beyond −55 °C to +150 °C ambient, and automotive-grade traceability. Use in automotive systems requires formal qualification and validation by the end customer.
BZX38450-C2V7F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX38450-C2V7F FAQ
1.How can I place an order for BZX38450-C2V7F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX38450-C2V7F 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 BZX38450-C2V7F reliable?
The price and inventory of BZX38450-C2V7F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX38450-C2V7F is usually 5 days.
3.What payment methods are accepted for BZX38450-C2V7F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX38450-C2V7F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX38450-C2V7F?
BZX38450-C2V7F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX38450-C2V7F 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 BZX38450-C2V7F?
For technical support, including BZX38450-C2V7F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX38450-C2V7F requirements.
6.How does Aetrix verify that BZX38450-C2V7F is sourced from the original manufacturer or authorized distributors?
All BZX38450-C2V7F 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 BZX38450-C2V7F meets industry standards.
7.What is the process for return or replacement of BZX38450-C2V7F?
All BZX38450-C2V7F units undergo pre-shipment inspection (PSI). If there is an issue with BZX38450-C2V7F, 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 BZX38450-C2V7F part is unused and in its original packaging.
Return procedure for BZX38450-C2V7F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX38450-C2V7F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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