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Diodes Incorporated BZX84C16-7
- Part No.:
- BZX84C16-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C16-7.pdf
- Description:
- DIODE ZENER 16V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,043
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Product details
Overview
BZX84C16-7 from Diodes Incorporated is a 350 mW surface-mount Zener diode with a nominal zener voltage of 16 V (15.3–17.1 V range), 5 mA test current, and 40 Ω maximum zener impedance at IZT. It operates within -65 °C to +150 °C and is housed in an SOT23 package, commonly used for voltage regulation and overvoltage protection in power supply feedback loops.
For engineers reviewing the BZX84C16-7 datasheet, BZX84C16-7 pinout, BZX84C16-7 application, or BZX84C16-7 equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at regulation current, thermal resistance (357 °C/W), reverse leakage (<0.1 µA at 11.2 V), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode functions as a precision shunt voltage reference, maintaining stable output voltage across varying load currents by operating in reverse breakdown. Its planar die construction ensures consistent breakdown characteristics and low noise performance under DC bias conditions.
The device exhibits a negative temperature coefficient of -3.5 mV/°C below 6 V and transitions toward zero near 16 V - confirmed by its specified TC of 0 mV/°C at nominal VZ, enabling stable regulation over temperature in mid-voltage applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal (15.3–17.1 V range at 5 mA); defines regulated clamp voltage in feedback or protection circuits. |
| Power Dissipation | 350 mW at ambient temperature; sets maximum continuous power handling without forced cooling. |
| Zener Impedance (ZZT) | 40 Ω max at 5 mA; determines regulation stiffness - lower values yield tighter voltage control under load variation. |
| Reverse Leakage (IR) | <0.1 µA at 11.2 V; ensures minimal quiescent current in high-impedance bias networks. |
| Thermal Resistance (RθJA) | 357 °C/W; quantifies junction-to-ambient self-heating - critical for derating above 25 °C ambient. |
| Operating Temperature | -65 °C to +150 °C; supports deployment in under-hood automotive, industrial controls, and outdoor electronics. |
Pinout & Package
Package: SOT23 - three-terminal surface-mount plastic package with matte tin-plated alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground path | Connected to system ground or lower-potential node when used in shunt regulation configuration. |
| Cathode (Pin 2) | Zener breakdown terminal / voltage reference output | Provides regulated voltage node; ties to feedback point in switching regulator error amplifiers. |
| No-Connect (Pin 3) | Unused internal die connection | Electrically isolated; no bonding wire attached - must remain unconnected in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics requiring high-reliability stress testing. |
| Green molding compound | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), compliant with RoHS 3 and environmental directives. |
| Low thermal resistance | 357 °C/W enables operation up to +125 °C ambient without external heatsinking in space-constrained designs. |
| Stable 16 V reference | ±6.25% tolerance (15.3–17.1 V) and near-zero tempco at nominal voltage ensure predictable regulation across temperature. |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in flyback or buck converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 16 V threshold for error signal generation. Use Value: Enables ±1% output accuracy over line/load/temperature with minimal component count and no external bias resistor needed. |
Use Scenario: Clamps transient surges on 12 V automotive bus lines during load dump or ISO 7637-2 pulse tests. IC Role / Device Role / Timing Role: Fast-acting voltage clamp limiting rail excursion to ≤17.1 V peak. Use Value: Prevents damage to downstream 16 V-rated ICs (e.g., CAN transceivers, microcontrollers) without adding series resistance or delay. |
| Reference Voltage Generator | Signal Level Translation |
Use Scenario: Generates stable 16 V reference for ADC input scaling or DAC output buffering in industrial sensor interfaces. IC Role / Device Role / Timing Role: Precision DC voltage source replacing higher-cost bandgap references where moderate accuracy suffices. Use Value: Delivers 16 V ±0.9 V stability over -40 °C to +85 °C, reducing calibration overhead in factory-set instrumentation. |
Use Scenario: Shifts logic-level signals between 3.3 V MCU GPIO and 16 V analog front-end circuitry in battery management systems. IC Role / Device Role / Timing Role: Bidirectional level translator using Zener clamping to limit high-side swing while preserving low-side logic integrity. Use Value: Eliminates need for dedicated level-shifter ICs; supports 10 MHz digital edge rates with sub-nanosecond response to overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | 16 V nominal, 200 mW rating, 30 Ω ZZT, SOT23 package, not AEC-Q101 qualified | Limited to commercial-grade consumer electronics due to lower power and absence of automotive qualification | Select when cost sensitivity outweighs automotive reliability requirements and thermal margin permits 200 mW operation. |
| BZX84-C16,115 | Same 16 V spec, 350 mW, SOT23, but supplied in 10,000-piece tape-and-reel (13-F) vs. 3,000-piece (7-F) packaging | Identical electrical and thermal behavior; differs only in logistics - suited for high-volume production runs | Choose for automated assembly lines requiring larger reels to minimize changeover frequency and reduce downtime. |
Compared with MMBZ5245BS-7-F and BZX84-C16,115, the BZX84C16-7 offers AEC-Q101 compliance and standardized 3,000-unit reel sizing - making it optimal for automotive prototyping and medium-batch industrial builds where qualification and procurement flexibility are prioritized.
Availability
BZX84C16-7 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and reference voltage generator applications requiring stable component supply, automotive-grade reliability, and SOT23 footprint compatibility.
Supply support for BZX84C16-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance, high-reliability components for automotive, industrial, and consumer markets.
The BZX84 series belongs to Diodes' standard Zener diode product line, engineered for precision voltage regulation and transient suppression in compact, automated-assembly-ready packages like SOT23.
FAQ
What is the maximum reverse voltage before breakdown for BZX84C16-7?
The BZX84C16-7 has a nominal zener voltage of 16 V, with a guaranteed breakdown range of 15.3 V to 17.1 V at 5 mA test current. Below 11.2 V, reverse leakage remains under 0.1 µA - confirming stable non-conduction until reaching the specified zener threshold.
Is BZX84C16-7 suitable for automotive applications?
Yes - BZX84C16-7 is explicitly qualified to AEC-Q101 standards, including stress tests for temperature cycling, humidity, and mechanical shock. Its green molding compound and extended -65 °C to +150 °C operating range meet automotive under-hood and body-control module requirements.
How does thermal derating affect BZX84C16-7's power handling?
At 25 °C ambient, BZX84C16-7 supports 350 mW. Derating begins linearly above 25 °C at 2.8 mW/°C (based on RθJA = 357 °C/W), reducing to ~210 mW at 85 °C ambient - requiring careful PCB copper area allocation in thermally dense layouts.
Can BZX84C16-7 replace BZX84C15 or BZX84C18 in existing designs?
Direct substitution is possible only if system tolerances accommodate the 1 V shift: BZX84C15 regulates at 15 V (±0.6 V), BZX84C18 at 18 V (±0.9 V). The 16 V unit's tighter 15.3–17.1 V window may improve regulation accuracy but requires verification of downstream voltage margin and thermal dissipation.
BZX84C16-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- 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:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C16-7 FAQ
1.How can I place an order for BZX84C16-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C16-7 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 BZX84C16-7 reliable?
The price and inventory of BZX84C16-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C16-7 is usually 5 days.
3.What payment methods are accepted for BZX84C16-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C16-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C16-7?
BZX84C16-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C16-7 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 BZX84C16-7?
For technical support, including BZX84C16-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C16-7 requirements.
6.How does Aetrix verify that BZX84C16-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C16-7 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 BZX84C16-7 meets industry standards.
7.What is the process for return or replacement of BZX84C16-7?
All BZX84C16-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C16-7, 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 BZX84C16-7 part is unused and in its original packaging.
Return procedure for BZX84C16-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C16-7 Tags
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