My Inquiry
My Account
Vishay General Semiconductor - Diodes Division BZX84C16-G3-18
- Part No.:
- BZX84C16-G3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C16-G3-18.pdf
- Description:
- DIODE ZENER 16V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C16-G3-18 from Vishay Semiconductors is a silicon planar Zener diode rated for 16 V nominal Zener voltage (±5 % tolerance), 5 mA test current, 0.05 μA reverse leakage at 12.2 V, 40 Ω dynamic resistance at 5 mA, and 8 × 10⁻⁴/°C positive temperature coefficient - used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the BZX84C16-G3-18 datasheet, BZX84C16-G3-18 pinout, BZX84C16-G3-18 application, or BZX84C16-G3-18 equivalent, this page delivers verified electrical parameters, SOT-23 package details, thermal derating behavior, ESD robustness (HBM > 8 kV), and direct alternative part comparisons - all aligned to Vishay's Rev. 1.1 specification dated 24-Jan-2024.
Technical Context
This device operates as a single-element, two-terminal voltage reference with stable breakdown characteristics under DC or low-frequency pulse conditions. Its 16 V nominal Zener voltage is specified at 5 mA test current (IZT1), with dynamic resistance of 40 Ω measured at 1 kHz - enabling predictable regulation in feedback loops and bias networks.
The BZX84C16-G3-18 exhibits a +8 × 10⁻⁴/°C temperature coefficient and operates across -55 °C to +150 °C ambient range. It is housed in an SOT-23 package with MSL level 1 moisture sensitivity and JEDEC-compliant soldering profile (peak 260 °C), supporting automated assembly in consumer and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V min. / 16 V nom. / 16.8 V max. at 5 mA - defines precise clamping threshold for voltage regulation and reference circuits |
| Dynamic Resistance (ZZ) | 40 Ω at IZT1 = 5 mA, f = 1 kHz - determines output impedance and load regulation error in shunt regulator designs |
| Reverse Leakage Current (IR) | ≤ 0.05 μA at VR = 12.2 V - ensures minimal quiescent power loss in high-impedance bias networks |
| Temperature Coefficient (αVZ) | +8 × 10⁻⁴/°C at 5 mA - indicates predictable, linear drift with temperature for compensated reference applications |
| Power Dissipation (Ptot) | 300 mW on FR-4 board - sets maximum continuous power handling before thermal derating applies |
| ESD Robustness | HBM > 8 kV, MM > 800 V - supports handling and operation in non-ESD-controlled manufacturing environments |
| Junction Temperature (Tj) | 150 °C max. - constrains operating margin when mounted on thermally constrained PCBs |
Pinout & Package
SOT-23 plastic surface-mount package (9.2 mg weight, UL 94 V-0 molding compound, MSL level 1 per J-STD-020). Dimensions: 2.9 ± 0.1 mm length, 1.3 ± 0.1 mm width, 1.01 ± 0.11 mm height; lead pitch 0.95 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry terminal during forward conduction; cathode reference point during Zener operation | Connected to lower-potential node in shunt regulator; polarity must be observed to avoid forward conduction in clamp mode |
| Cathode (Pin 2) | Current exit terminal during forward conduction; Zener breakdown terminal during reverse bias | Connected to regulated voltage node; provides stable reference potential when reverse-biased above VZ |
| Collector / Heat Sink (Pin 3) | Internal die attachment pad; electrically connected to cathode | Provides primary thermal path to PCB copper; must be routed to thermal pad or ground plane for sustained 300 mW operation |
Key Features
| Feature | Design Value |
|---|---|
| Silicon planar construction | Ensures tight parametric distribution and long-term stability of VZ across production lots |
| ±5 % Zener voltage tolerance ('C' suffix) | Meets E24 standard grading - enables cost-effective selection without trimming in non-critical references |
| AEC-Q101 qualification available | Supports automotive-grade reliability requirements (qualification status requires part number request) |
| SOT-23 footprint compatibility | Enables drop-in replacement with industry-standard discrete Zener footprints and pick-and-place tooling |
| Green, commercial-grade marking (G3) | Indicates RoHS-compliant materials and halogen-free packaging per Vishay material categorization |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA transmitter modules operating at 24 V supply. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 16 V reference for current-sense amplifier gain setting and ADC reference scaling. Use Value: Maintains <±1.5 % reference accuracy over -40 °C to +85 °C due to +8 × 10⁻⁴/°C αVZ, reducing calibration frequency in field-deployed sensors. |
Use Scenario: Clamping transient surges on USB VBUS line caused by hot-plug incompatibility or ESD events. IC Role / Device Role / Timing Role: Two-terminal transient voltage suppressor placed between VBUS and GND, activated above 16.8 V. Use Value: Limits peak clamped voltage to ≤17.5 V with <0.5 ns response, protecting downstream USB PHY ICs rated for 20 V absolute max. |
| Low-Power IoT Node Voltage Reference | Programmable Logic Supply Rail Clamp |
|
Use Scenario: Generating stable 16 V reference for battery-monitoring ADC in coin-cell-powered BLE sensor nodes. IC Role / Device Role / Timing Role: Low-quiescent-current Zener reference supplying bias to precision voltage divider network. Use Value: Draws only 0.05 μA leakage at 12.2 V - extends shelf life of CR2032 batteries by >12 months versus higher-leakage alternatives. |
Use Scenario: Preventing FPGA I/O bank damage during configuration when external 16 V auxiliary rail exceeds safe logic voltage. IC Role / Device Role / Timing Role: Rail-to-rail clamp limiting FPGA VCCIO to 16.8 V maximum during power-up sequencing faults. Use Value: Withstands 500 mW pulsed dissipation (RthJL = 250 K/W), absorbing 100 ms overvoltage transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F (Diodes Inc.) | 16 V nominal, ±5 %, 5 mA IZT, 30 Ω ZZ, -65 °C to +150 °C Tstg | Lower dynamic resistance improves regulation in high-precision references; slightly tighter thermal resistance spec (RthJA = 380 K/W) | Select when tighter output impedance is required and SOT-23 layout allows minor thermal optimization. |
| 1SMA5925BT3G (ON Semiconductor) | 16 V nominal, ±5 %, 12.5 mA IZT, 15 Ω ZZ, 1.5 W Ptot (DO-214AC) | Higher power rating and lower ZZ suit higher-current shunt regulators; DO-214AC package requires PCB redesign | Choose for >100 mA clamp applications where board space permits larger package and thermal mass. |
Compared with BZX84C16-G3-18, MMBZ5245BS-7-F offers improved regulation fidelity at identical footprint, while 1SMA5925BT3G trades miniaturization for higher power handling and lower impedance - requiring layout revision but enabling robust surge suppression in industrial controls.
Availability
BZX84C16-G3-18 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB port overvoltage protection, and low-power IoT node voltage reference applications requiring stable component supply, consistent parametric binning, and RoHS-compliant green packaging.
Supply support for BZX84C16-G3-18 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The BZX84-G series targets cost-sensitive, space-constrained applications requiring stable Zener performance in SOT-23 - designed specifically for voltage reference, overvoltage clamping, and bias network stabilization in high-volume consumer and industrial electronics.
FAQ
What is the Zener voltage tolerance for BZX84C16-G3-18?
The BZX84C16-G3-18 has a nominal Zener voltage of 16 V with a tolerance of ±5 %, as indicated by the "C" in the ordering code. This corresponds to a guaranteed range of 15.3 V minimum to 16.8 V maximum when tested at 5 mA (IZT1) and Tamb = 25 °C, per Vishay Document Number 86345 Rev. 1.1.
Does BZX84C16-G3-18 meet automotive qualification standards?
The BZX84C16-G3-18 is not AEC-Q101 qualified by default; however, AEC-Q101 qualified versions of the BZX84-G series are available upon request with custom part numbering. The standard BZX84C16-G3-18 is commercial-grade (G3 suffix) and rated for -55 °C to +150 °C operating temperature, but formal automotive qualification requires explicit confirmation from Vishay.
What is the maximum power dissipation for BZX84C16-G3-18 on a standard FR-4 PCB?
The BZX84C16-G3-18 is rated for 300 mW maximum power dissipation when mounted on an FR-4 printed circuit board using Vishay's recommended soldering footprint. This value assumes compliance with JEDEC® 51-3 thermal test conditions and decreases with rising ambient temperature - full derating curves are provided in Figure 1 of the datasheet.
How does the temperature coefficient affect BZX84C16-G3-18 in precision reference designs?
The BZX84C16-G3-18 has a positive temperature coefficient of +8 × 10⁻⁴/°C at 5 mA, meaning its Zener voltage increases by approximately 12.8 mV per 10 °C rise. In precision reference designs, this drift must be compensated via circuit topology (e.g., complementary diode pairing) or calibrated out in firmware - it is not suitable for unadjusted high-stability references above ±0.1 %.
Can BZX84C16-G3-18 be used as a substitute for BZX84C15-G3-18?
No - BZX84C16-G3-18 and BZX84C15-G3-18 are distinct parts with different nominal Zener voltages (16 V vs. 15 V) and non-overlapping voltage ranges (15.3–16.8 V vs. 14.25–15.6 V). Substitution would shift clamping/reference thresholds by ≥0.7 V, potentially violating system-level voltage margins; they are not functionally interchangeable without circuit revalidation.
BZX84C16-G3-18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZX84-G
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C16-G3-18 FAQ
1.How can I place an order for BZX84C16-G3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C16-G3-18 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 BZX84C16-G3-18 reliable?
The price and inventory of BZX84C16-G3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C16-G3-18 is usually 5 days.
3.What payment methods are accepted for BZX84C16-G3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C16-G3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C16-G3-18?
BZX84C16-G3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C16-G3-18 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 BZX84C16-G3-18?
For technical support, including BZX84C16-G3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C16-G3-18 requirements.
6.How does Aetrix verify that BZX84C16-G3-18 is sourced from the original manufacturer or authorized distributors?
All BZX84C16-G3-18 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 BZX84C16-G3-18 meets industry standards.
7.What is the process for return or replacement of BZX84C16-G3-18?
All BZX84C16-G3-18 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C16-G3-18, 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 BZX84C16-G3-18 part is unused and in its original packaging.
Return procedure for BZX84C16-G3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C16-G3-18 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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
