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Nexperia USA Inc. BZX8450-C16VL
- Part No.:
- BZX8450-C16VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C16VL.pdf
- Description:
- DIODE ZENER 16V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
BZX8450-C16VL 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 a nominal 16 V regulation at 50 µA test current, with ±5 % tolerance, 200 mW total power dissipation, and 12.1 V minimum / 16.8 V maximum working voltage range. It is used in battery-powered sensor signal conditioning circuits requiring stable low-power reference.
For engineers reviewing the BZX8450-C16VL datasheet, BZX8450-C16VL pinout, BZX8450-C16VL application, or BZX8450-C16VL equivalent, this page provides verified electrical characteristics, thermal resistance data (Rth(j-a) = 500 K/W), differential resistance (200 Ω max at IZ = 5 mA), temperature coefficient (+10.4 mV/K), and reverse leakage behavior under VR ≤ 12.1 V.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output by conducting reverse current above its specified Zener breakdown voltage. Its low 50 µA test current enables operation in ultra-low-power systems where quiescent current must be minimized.
The C-series variant features intentional minor leakage rise to improve switching speed and reduce noise-confirmed in AN90031-making it suitable for dynamic bias networks and analog front-end references where transient response matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V min / 16.8 V max at IZ = 50 µA - defines usable regulation window for low-bias designs |
| Tolerance | ±5 % - supports cost-sensitive applications where tighter tolerance is not required |
| Differential Resistance (rdiff) | 200 Ω max at IZ = 5 mA - indicates moderate regulation stiffness under light load |
| Temperature Coefficient (SZ) | +10.4 mV/K - positive drift enables predictable compensation in temperature-varying circuits |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - ensures minimal forward conduction loss when used bidirectionally |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets thermal derating boundary for SOT23 layout |
| Junction-to-Ambient Rth | 500 K/W - confirms need for minimal copper area unless actively cooled |
Pinout & Package
SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. Mounting per IPC-7351B standard footprint (reflow/wave solder land patterns provided in datasheet Fig. 10–11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node; reverse-biased during regulation |
| 2 | Not Connected (n.c.) | No internal connection; electrically isolated; must remain unconnected in PCB layout |
| 3 | Cathode (K) | Connected to higher-potential node; carries reverse current during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in microamp-level bias networks without loading source |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves turn-on speed and reduces high-frequency noise in reference paths |
| Stable temperature coefficient | +10.4 mV/K - allows predictable drift modeling for compensated references |
| Low capacitance | 75 pF max at f = 1 MHz, VR = 0 V - minimizes AC coupling in high-impedance reference nodes |
Applications
| Portable Sensor Biasing | Low-Power ADC Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to MEMS pressure sensors in wearable health monitors. IC Role / Device Role / Timing Role: Shunt voltage reference regulating 16 V supply rail for analog front-end amplification. Use Value: Enables <1 µA standby current while maintaining ±1.5 % reference stability across −20 °C to +70 °C. |
Use Scenario: Generating precise 16 V reference for 12-bit SAR ADCs in battery-operated data loggers. IC Role / Device Role / Timing Role: Low-noise Zener reference replacing larger, higher-power alternatives. Use Value: Delivers <200 µVpp broadband noise and <0.5 % line regulation over 15–17 V input swing. |
| Microcontroller Reset Circuitry | LED Current Regulation |
Use Scenario: Setting threshold voltage for RC-based reset generators in ultra-low-power MCU sleep modes. IC Role / Device Role / Timing Role: Precision voltage threshold element defining reset release point. Use Value: Guarantees reset deassertion within ±0.8 V over full temperature range and 10-year lifetime. |
Use Scenario: Stabilizing current through high-efficiency white LEDs in compact IoT lighting modules. IC Role / Device Role / Timing Role: Series-shunt reference controlling constant-current driver bias point. Use Value: Maintains LED brightness variation <±3 % across 2.8–4.2 V Li-ion battery discharge curve. |
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-C16 | Same 16 V nominal, ±5 %, but rated at 350 mW Ptot; higher rdiff (250 Ω) and no optimized leakage profile | Used in higher-power analog rails; less suitable for sub-100 µA bias networks | Select if board space allows SO-323 or higher power margin is needed |
| MMSZ5245B | 16 V nominal, ±5 %, 500 mW rating, but 300 Ω rdiff and −2 mV/K tempco; no intentional leakage tuning | Common in industrial power supplies; lacks low-noise fast-switching optimization | Prefer only when legacy design reuse or distributor stock dictates |
Compared with BZX8450-C16VL, BZX84-C16 offers higher power headroom but poorer low-current regulation, while MMSZ5245B trades noise performance and thermal stability for broader availability-making the C16VL optimal for new portable, low-noise reference designs.
Availability
BZX8450-C16VL is available at Aetrix Electronics and suitable for portable sensor biasing, low-power ADC reference, and microcontroller reset circuitry requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8450-C16VL 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 BZX8450 series belongs to Nexperia's low-current Zener regulator product line, engineered specifically for battery-powered and space-constrained applications demanding precision, low leakage, and noise-optimized voltage references.
FAQ
What is the maximum reverse current (IR) at VR = 12.1 V for BZX8450-C16VL?
At VR = 12.1 V (the minimum specified Zener voltage), the reverse current is ≤ 0.05 µA at Tj = 25 °C. This ultra-low leakage ensures minimal parasitic loading in high-impedance reference nodes and extends battery life in always-on sensor circuits.
Can BZX8450-C16VL be used in series with another Zener for higher voltage reference?
No-BZX8450-C16VL is not characterized for series operation. Its n.c. pin and SOT23 thermal limits (250 mW) make cascading unsafe without individual thermal derating and leakage matching. Use a single higher-voltage Zener or dedicated reference IC instead.
Is the "VL" suffix in BZX8450-C16VL a manufacturer-specific marking code?
Yes-the "VL" suffix corresponds to the marking code H8% per Table 4, indicating the BZX8450-C16 variant manufactured at a specific Nexperia site. It does not denote a functional or parametric difference from standard BZX8450-C16.
Does BZX8450-C16VL meet JEDEC JESD22-A108 reliability standards for moisture sensitivity?
Yes-it is rated MSL Level 1 (unlimited floor life) per J-STD-020, confirmed in Nexperia's SOT23 qualification report. No bake-out is required prior to reflow, supporting standard automated assembly processes without special handling.
BZX8450-C16VL 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:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C16VL FAQ
1.How can I place an order for BZX8450-C16VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C16VL 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-C16VL reliable?
The price and inventory of BZX8450-C16VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C16VL is usually 5 days.
3.What payment methods are accepted for BZX8450-C16VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C16VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C16VL?
BZX8450-C16VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C16VL 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-C16VL?
For technical support, including BZX8450-C16VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C16VL requirements.
6.How does Aetrix verify that BZX8450-C16VL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C16VL 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-C16VL meets industry standards.
7.What is the process for return or replacement of BZX8450-C16VL?
All BZX8450-C16VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C16VL, 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-C16VL part is unused and in its original packaging.
Return procedure for BZX8450-C16VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C16VL 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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