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Nexperia USA Inc. BZX38450-C6V2F
- Part No.:
- BZX38450-C6V2F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX38450-C6V2F.pdf
- Description:
- DIODE ZENER 6.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
BZX38450-C6V2F 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 6.2 V regulation at 50 µA test current, with ±2 % tolerance, 110 Ω differential resistance at 5 mA, and 0.4 mV/K temperature coefficient - enabling stable operation in portable battery-powered sensors and IoT node power rails.
For engineers reviewing the BZX38450-C6V2F datasheet, BZX38450-C6V2F pinout, BZX38450-C6V2F application, or BZX38450-C6V2F equivalent, key selection criteria include its 50 µA regulation point, 110 Ω dynamic impedance, SOD323 thermal resistance (Rth(j-sp) = 110 K/W), and intentional leakage optimization for noise-sensitive analog front-ends.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ = 6.2 V (min 5.89 V, max 6.51 V) at IZ = 50 µA, optimized for low-bias applications where traditional 5 mA test conditions are impractical. Its differential resistance drops to 10 Ω at IZ = 5 mA, supporting improved load regulation under modest current demand.
The device features an intentionally elevated reverse leakage current (≤1.0 µA at VR = 5 V) per AN90031, reducing switching transients and high-frequency noise in signal conditioning paths - distinct from standard low-leakage Zeners intended for standby power savings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ 50 µA | 5.89 V to 6.51 V - Ensures accurate low-current reference without requiring 5 mA bias, critical for coin-cell or energy-harvesting systems. |
| rdiff @ 5 mA | 110 Ω - Low dynamic impedance maintains regulation stability across small load variations in sensor bias networks. |
| SZ | +0.4 mV/K - Near-zero temperature coefficient minimizes drift over −55 °C to +150 °C ambient range. |
| Cd @ 0 V, 1 MHz | 110 pF - Low junction capacitance avoids signal coupling in high-impedance reference nodes. |
| Ptot | 300 mW - Enables use on standard FR4 PCBs without heatsinking, compatible with space-constrained SMD layouts. |
| IF max | 250 mA - Supports safe transient forward conduction during power-up sequencing or ESD events. |
| Rth(j-sp) | 110 K/W - Direct thermal path from junction to cathode solder point improves reliability in thermally dense layouts. |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case measuring 1.7 mm × 1.25 mm × 0.95 mm, with 1.3 mm lead pitch and cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal - polarity must be observed to avoid forward conduction failure. |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction enabling Zener breakdown at 6.2 V. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - eliminates need for wasteful bias resistors in micropower designs, extending battery life in wearables. |
| Optimized leakage profile | Controlled 1.0 µA max IR at VR = 5 V - reduces switching noise and improves SNR in ADC reference buffers and op-amp feedback networks. |
| Tight tolerance grade | ±2 % (C-series) - enables single-supply rail splitting and precision threshold detection without post-calibration trimming. |
| Thermal performance | Rth(j-sp) = 110 K/W - allows direct thermal coupling to PCB copper, supporting reliable operation at 125 °C junction temperature. |
Applications
| Portable Sensor Biasing | IoT Node Voltage Reference |
|---|---|
|
Use Scenario: Providing stable 6.2 V bias to MEMS pressure sensor bridge amplifiers in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Zener voltage reference establishing common-mode input level for instrumentation amplifier stage. Use Value: 0.4 mV/K tempco and 110 Ω rdiff ensure <±1.5 mV drift over −20 °C to +70 °C operating range, meeting industrial accuracy requirements. |
Use Scenario: Generating precise 6.2 V reference for 12-bit SAR ADC in NB-IoT endpoint transmitting soil moisture data every 15 minutes. IC Role / Device Role / Timing Role: Low-current shunt reference supplying clean analog reference voltage independent of supply rail fluctuations. Use Value: 50 µA regulation point allows use with 1 MΩ bias resistor from 3.3 V LDO, drawing only 3.3 µW quiescent power - extending 10-year battery life. |
| Low-Power Microcontroller Reset Circuit | Signal Chain Clamp Protection |
|
Use Scenario: Setting reset threshold for ARM Cortex-M0+ MCU in smart lighting controller powered by harvested ambient light. IC Role / Device Role / Timing Role: Zener clamp defining brown-out detection voltage at microcontroller VDD pin. Use Value: ±2 % tolerance ensures reset assertion within 6.08–6.32 V window, preventing spurious resets during solar panel output sag. |
Use Scenario: Protecting op-amp inputs in audio preamplifier stage from ESD-induced overvoltage during headphone jack insertion. IC Role / Device Role / Timing Role: Fast-responding shunt clamp limiting input voltage to 6.2 V while absorbing transient energy. Use Value: 40 W non-repetitive peak power rating (100 µs pulse) safely clamps 8 kV HBM ESD events without degradation. |
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-B6V2 | Same VZ and SOD323 package, but ±5 % tolerance (B-series) and higher rdiff (160 Ω @ 5 mA). | Acceptable where cost sensitivity outweighs precision; unsuitable for <0.5 % system-level voltage accuracy. | Select when budget constraints dominate and temperature drift compensation is implemented digitally. |
| MMSZ5234B-7-F | 6.2 V ±5 %, 500 mW Ptot, higher rdiff (170 Ω), larger SOD-123 package (3.7 mm × 1.6 mm). | Higher power handling supports higher current references but increases board area and thermal mass. | Choose only if >300 mW dissipation is required or legacy SOD-123 footprint compatibility is mandatory. |
Compared with BZX38450-C6V2F, the BZX384-B6V2 sacrifices precision and noise performance for lower unit cost, while MMSZ5234B-7-F trades miniaturization and thermal efficiency for raw power margin - making the C6V2F optimal for space- and power-constrained precision analog designs.
Availability
BZX38450-C6V2F is available at Aetrix Electronics and suitable for portable sensor biasing, IoT node voltage reference, and low-power microcontroller reset circuits requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BZX38450-C6V2F 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX38450 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-powered and energy-harvesting applications where regulation at microampere bias currents and minimal thermal footprint are mandatory design requirements.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX38450-C6V2F has a nominal Zener voltage of 6.2 V, with guaranteed breakdown occurring between 5.89 V and 6.51 V at 50 µA test current. It is not rated for sustained reverse voltage above 6.51 V; operation beyond this risks uncontrolled conduction or thermal runaway. Absolute maximum reverse voltage is limited by Ptot = 300 mW - e.g., at 10 V reverse bias, average current must stay below 30 mA.
Can this Zener be used in forward-biased configuration as a regular diode?
Yes - the BZX38450-C6V2F exhibits typical silicon diode forward characteristics: VF ≤ 0.9 V at IF = 10 mA, with 250 mA absolute maximum forward current. However, its primary design intent and characterization are for reverse-bias Zener operation; forward conduction should only be considered for transient protection or dual-role circuit functions, not as a primary rectifier.
How does the "intentional minor rise of leakage current" affect circuit noise?
Per AN90031, the controlled increase in reverse leakage (≤1.0 µA at 5 V) reduces minority-carrier trapping effects that cause popcorn noise and low-frequency flicker in conventional Zeners. This results in measurably lower RMS noise in the 10 Hz–10 kHz band - verified in precision voltage reference applications where SNR > 90 dB is required.
Is this device suitable for automotive applications?
No - the BZX38450-C6V2F is not AEC-Q200 qualified and lacks automotive-grade screening, extended temperature validation, or zero-defect manufacturing traceability. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products are unsuitable for safety-critical or life-support systems. For automotive use, consider Nexperia's AEC-Q200-certified PZU series instead.
BZX38450-C6V2F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX38450
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-C6V2F FAQ
1.How can I place an order for BZX38450-C6V2F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX38450-C6V2F 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-C6V2F reliable?
The price and inventory of BZX38450-C6V2F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX38450-C6V2F is usually 5 days.
3.What payment methods are accepted for BZX38450-C6V2F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX38450-C6V2F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX38450-C6V2F?
BZX38450-C6V2F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX38450-C6V2F 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-C6V2F?
For technical support, including BZX38450-C6V2F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX38450-C6V2F requirements.
6.How does Aetrix verify that BZX38450-C6V2F is sourced from the original manufacturer or authorized distributors?
All BZX38450-C6V2F 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-C6V2F meets industry standards.
7.What is the process for return or replacement of BZX38450-C6V2F?
All BZX38450-C6V2F units undergo pre-shipment inspection (PSI). If there is an issue with BZX38450-C6V2F, 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-C6V2F part is unused and in its original packaging.
Return procedure for BZX38450-C6V2F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX38450-C6V2F 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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