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Taiwan Semiconductor Corporation BZX85C16 R0G
- Part No.:
- BZX85C16 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZX85C16 R0G.pdf
- Description:
- DIODE ZENER 16V 1.3W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,477
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Product details
Overview
BZX85C16 R0G from Taiwan Semiconductor is a 1.3W, ±5% tolerance, 16V Zener diode in DO-41 package, designed for precision voltage regulation and reference in low-power DC/DC converters, lighting circuits, and adapter power supplies.
For engineers reviewing the BZX85C16 R0G datasheet, BZX85C16 R0G pinout, BZX85C16 R0G application, or BZX85C16 R0G equivalent, key selection criteria include nominal Zener voltage (16V), test current (15mA), dynamic impedance (500Ω max at IZT), leakage current (0.5µA max at 12V), and thermal resistance (130°C/W).
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and input conditions. It features hermetically sealed glass construction, pure tin-plated leads compliant with J-STD-002, and a cathode band for polarity identification.
Rated for junction temperatures from –65°C to +200°C and storage in the same range, the BZX85C16 R0G delivers reliable regulation in industrial and consumer power management applications where compact size and RoHS compliance are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3–17.1 V at 15 mA test current - defines stable regulation window for feedback or reference use |
| Power Dissipation (PD) | 1.3 W - sets maximum continuous power handling without derating at 25°C ambient |
| Zener Impedance (ZZT) | ≤500 Ω at 15 mA - determines output voltage stability under small-signal AC ripple |
| Leakage Current (IR) | ≤0.5 µA at 12 V reverse bias - ensures minimal standby current in high-impedance reference nodes |
| Junction-to-Ambient RθJA | 130 °C/W - governs temperature rise under full power; requires adequate PCB copper area for thermal management |
| Package | DO-41 - axial-leaded through-hole package with 2.8 mm body diameter and 5.2 mm lead spacing |
Pinout & Package
DO-41 package: axial-lead, hermetically sealed glass body, cathode indicated by single black band. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-biased operation | Connected to lower potential node when used as shunt regulator; forms return path for Zener current |
| Cathode | Zener breakdown terminal / high-side connection in reverse-biased operation | Marked with black band; connected to regulated voltage node; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive designs |
| Hermetically sealed glass case | Ensures long-term parameter stability and moisture resistance in humid or variable environments |
| RoHS-compliant construction | Meets global environmental directives without requiring redesign for export or CE-marked products |
| 1.3W power rating at 25°C | Supports higher-current reference or clamp functions than standard 400mW Zeners, reducing need for external series resistors |
Applications
| Low-Voltage Stabilizers | On-Board DC/DC Converters |
|---|---|
Use Scenario: Providing stable 16V reference for linear regulators or op-amp biasing in battery-powered instrumentation. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining fixed node voltage despite supply variation or load transients. Use Value: Delivers 16V regulation with ≤0.5µA leakage at 12V, minimizing quiescent current in always-on circuits. | Use Scenario: Clamping feedback node voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Overvoltage protection element limiting sensed voltage to safe levels for optocoupler or controller IC inputs. Use Value: With 500Ω max impedance at 15mA, it maintains tight regulation during transient load steps without oscillation. |
| Lighting Applications | Adapters |
Use Scenario: Setting constant current for LED strings via voltage reference in analog dimming circuits. IC Role / Device Role / Timing Role: Precision voltage source defining current-sense threshold in linear LED drivers. Use Value: 15.3–17.1V range enables accurate current setting across production lots without binning. | Use Scenario: Regulating unregulated secondary-side outputs in wall adapters for USB or sensor modules. IC Role / Device Role / Timing Role: Primary shunt regulator establishing stable bias for control ICs or providing local 16V rail. Use Value: 1.3W rating supports sustained operation under no-load or light-load conditions common in adapter standby modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | Same 12V nominal rating, but 1W power rating and ±5% tolerance; DO-41 package | Lower power handling limits use in sustained 16V clamp roles; suitable only for low-duty-cycle references | Select only if thermal budget restricts dissipation to ≤1W and 16V regulation margin is acceptable |
| BZX55C16 | Same 16V nominal rating and ±5% tolerance, but 500mW power rating and DO-35 package | Smaller DO-35 footprint reduces board space but lowers thermal mass and power capability | Prefer for space-constrained designs where 1.3W dissipation is not required |
Compared with 1N4742A and BZX55C16, the BZX85C16 R0G provides 30% higher power rating than BZX55C16 and 30% higher than 1N4742A, enabling more robust voltage clamping in thermally demanding adapter and converter applications without derating.
Availability
BZX85C16 R0G is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and lighting applications requiring stable component supply with RoHS compliance and through-hole assembly compatibility.
Supply support for BZX85C16 R0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, rectifiers, and Zener diodes for industrial and consumer markets.
The BZX85C series is part of TSC's general-purpose Zener diode product line, engineered for reliable voltage regulation in cost-sensitive, high-volume power management circuits with extended temperature operation.
FAQ
What is the nominal Zener voltage and tolerance of BZX85C16 R0G?
The BZX85C16 R0G has a nominal Zener voltage of 16 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 15.3 V and 17.1 V when tested at 15 mA. This specification is confirmed in the Electrical Specifications table of the Taiwan Semiconductor datasheet (Version H2301). The BZX85C16 R0G is intended for applications requiring stable mid-range voltage references without tight binning.
What package type and lead finish does BZX85C16 R0G use?
The BZX85C16 R0G uses the DO-41 axial-leaded package with pure tin-plated leads that meet J-STD-002 solderability requirements. Its mechanical outline matches standard DO-41 dimensions: 2.8 mm body diameter, 5.2 mm lead spacing, and ~242 mg weight. The cathode is marked by a single black band. This package supports through-hole assembly and offers robust thermal performance for its 1.3 W rating.
What is the maximum Zener impedance of BZX85C16 R0G and at what condition is it specified?
The maximum Zener impedance (ZZT) of BZX85C16 R0G is 500 Ω, measured at the test current IZT of 15 mA. This value reflects small-signal AC impedance under regulated conditions and directly impacts voltage stability under ripple or load transients. The datasheet specifies this parameter at TA = 25°C using a 60-cycle AC superimposed on the DC test current, per Note 4 in the Electrical Specifications section.
What is the leakage current specification for BZX85C16 R0G and at what reverse voltage is it measured?
The BZX85C16 R0G has a maximum leakage current (IR) of 0.5 µA, measured at a reverse voltage (VR) of 12 V. This low leakage ensures minimal current draw in high-impedance reference or bias networks, supporting energy-efficient design in battery-powered or always-on systems. The value is guaranteed across the full operating temperature range and is consistent with the device's ±5% VZ tolerance band.
Is BZX85C16 R0G RoHS compliant and what does the 'R0G' suffix indicate?
Yes, the BZX85C16 R0G is RoHS compliant, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. The 'R0G' suffix denotes the DO-41 package supplied on 5,000-piece 14-inch reels, with 'G' indicating green compound encapsulation. This ordering code aligns with TSC's standard packaging nomenclature and confirms tape-and-reel delivery for automated assembly processes.
BZX85C16 R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 12 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZX85C16 R0G FAQ
1.How can I place an order for BZX85C16 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX85C16 R0G 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 BZX85C16 R0G reliable?
The price and inventory of BZX85C16 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX85C16 R0G is usually 5 days.
3.What payment methods are accepted for BZX85C16 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX85C16 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX85C16 R0G?
BZX85C16 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX85C16 R0G 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 BZX85C16 R0G?
For technical support, including BZX85C16 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX85C16 R0G requirements.
6.How does Aetrix verify that BZX85C16 R0G is sourced from the original manufacturer or authorized distributors?
All BZX85C16 R0G 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 BZX85C16 R0G meets industry standards.
7.What is the process for return or replacement of BZX85C16 R0G?
All BZX85C16 R0G units undergo pre-shipment inspection (PSI). If there is an issue with BZX85C16 R0G, 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 BZX85C16 R0G part is unused and in its original packaging.
Return procedure for BZX85C16 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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