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Taiwan Semiconductor Corporation BZX85C13 R0G
- Part No.:
- BZX85C13 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZX85C13 R0G.pdf
- Description:
- DIODE ZENER 13V 1.3W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,245
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Product details
Overview
BZX85C13 R0G from Taiwan Semiconductor is a 13 V, ±5% tolerance, 1.3 W glass-encapsulated Zener diode in DO-41 package, designed for precision voltage regulation and reference in low-power DC/DC converters, lighting circuits, and AC/DC adapter feedback loops.
For engineers reviewing the BZX85C13 R0G datasheet, BZX85C13 R0G pinout, BZX85C13 R0G application, or BZX85C13 R0G equivalent, key selection criteria include its 12.4–14.1 V Zener voltage range at 10 mA test current, 400 Ω maximum Zener impedance, 0.5 µA leakage at 10 V reverse bias, and DO-41 thermal resistance of 130 °C/W.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable voltage across load variations. It features hermetically sealed glass construction for long-term reliability and meets RoHS compliance without lead or halogen additives.
Its junction temperature range spans –65 °C to +200 °C, enabling use in industrial environments with wide ambient swings. The device uses pure tin-plated leads solderable per J-STD-002 and identifies cathode polarity via a visible band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.4–14.1 V at 10 mA - defines regulated output voltage window under nominal bias |
| Power Dissipation (PD) | 1.3 W - maximum continuous power handling at 25 °C ambient, derates above 25 °C |
| Zener Impedance (ZZT) | ≤400 Ω at 10 mA - indicates voltage stability under small-signal AC ripple superimposed on DC bias |
| Leakage Current (IR) | ≤0.5 µA at 10 V - ensures minimal standby power loss in high-impedance reference nodes |
| Junction-to-Ambient RθJA | 130 °C/W - determines thermal rise above ambient at given power dissipation in free-air |
| Operating Temperature | –65 °C to +200 °C - supports deployment in automotive under-hood, industrial control, and lighting fixtures |
Pinout & Package
DO-41 axial-leaded package with cathode indicated by a single black band. Leads are pure tin-plated and compliant with J-STD-002 solderability standards. Device weight is approximately 242 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of circuit; forms reference ground return path in shunt regulator |
| Cathode | Reverse-biased Zener terminal / voltage regulation node | Connected to higher-potential rail; clamps voltage to VZ when reverse current exceeds IZK |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive consumer adapters |
| Hermetically sealed glass case | Prevents moisture ingress and long-term parameter drift in humid or outdoor lighting enclosures |
| RoHS-compliant construction | Meets global environmental directives without compromising thermal or electrical performance |
| DO-41 mechanical standardization | Ensures compatibility with legacy wave-solder and pick-and-place tooling in high-volume manufacturing |
Applications
| AC/DC Adapter Feedback | LED Driver Reference |
|---|---|
Use Scenario: Provides precise voltage reference for optocoupler-based feedback in offline flyback adapters rated ≤30 W. IC Role / Device Role / Timing Role: Shunt voltage reference that sets secondary-side output regulation threshold. Use Value: Maintains ±5% output accuracy over line/load/temperature with <0.5 µA leakage minimizing quiescent error. | Use Scenario: Stabilizes bias voltage for constant-current LED driver ICs in commercial downlights. IC Role / Device Role / Timing Role: Zener clamp defining reference voltage for current-sense amplifier input. Use Value: 13 V nominal rating matches common 12 V rail systems; 400 Ω ZZT ensures stable reference under PWM dimming transients. |
| On-board DC/DC Converter | Low-Voltage Sensor Bias |
Use Scenario: Supplies regulated 13 V bias to gate drivers or isolated controllers in point-of-load buck converters. IC Role / Device Role / Timing Role: Local shunt regulator replacing LDO where efficiency and simplicity are prioritized. Use Value: 1.3 W rating supports up to 100 mA bias current; DO-41 footprint simplifies layout near switching ICs. | Use Scenario: Generates stable reference for analog sensor signal conditioning in industrial temperature transmitters. IC Role / Device Role / Timing Role: Precision voltage source for op-amp biasing and ADC reference scaling. Use Value: –65 °C to +200 °C operating range ensures calibration stability across extended field temperature profiles. |
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 12 V nominal rating, but ±5% tolerance applied to 12 V (11.4–12.6 V); 1 W power rating | Narrower voltage window and lower power limit restrict use in 13 V systems requiring margin | Select only if design tolerates 12 V nominal and ≤1 W dissipation |
| MMSZ4702T1G | SOD-123 surface-mount package; 13 V nominal, ±5%, 500 mW rating; 300 Ω ZZT | Not drop-in replaceable due to SMT footprint and lower power; suited for space-constrained PCBs | Choose for automated assembly where board area is constrained and thermal load ≤500 mW |
Compared with 1N4742A and MMSZ4702T1G, BZX85C13 R0G delivers higher power headroom (1.3 W), tighter fit to 13 V system rails, and through-hole manufacturability-making it optimal for industrial adapters and lighting modules requiring robust thermal margin and legacy assembly compatibility.
Availability
BZX85C13 R0G is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting drivers, on-board DC/DC converters, and industrial sensor biasing requiring stable component supply and long-lifecycle continuity.
Supply support for BZX85C13 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 protection components with global distribution and AEC-Q200 qualified lines.
BZX85C13 R0G belongs to TSC's BZX85C series of general-purpose Zener diodes engineered for cost-effective, reliable voltage regulation in consumer, industrial, and lighting power supplies.
FAQ
What is the Zener voltage tolerance of BZX85C13 R0G?
BZX85C13 R0G has a nominal Zener voltage of 13 V with a guaranteed tolerance of ±5%, resulting in a validated range of 12.4 V to 14.1 V at 10 mA test current. This tolerance is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version H2301), and applies directly to the BZX85C13 R0G variant-not inferred from family-level data.
What package type does BZX85C13 R0G use?
BZX85C13 R0G uses the DO-41 axial-leaded package, as explicitly stated in the Mechanical Data and Ordering Information sections of the Taiwan Semiconductor datasheet. Dimensions-including 2.80 mm body diameter, 5.20 mm length, and 0.86 mm lead diameter-are fully specified and verified for this part number.
Is BZX85C13 R0G RoHS compliant?
Yes, BZX85C13 R0G is RoHS compliant, as documented in the FEATURES section of the official Taiwan Semiconductor datasheet. The device contains no restricted substances per Directive 2011/65/EU, and its green compound encapsulation and pure tin-plated leads meet all applicable material restrictions.
What is the maximum power dissipation for BZX85C13 R0G?
The absolute maximum power dissipation for BZX85C13 R0G is 1.3 W at 25 °C ambient temperature, as specified in both the Absolute Maximum Ratings and Key Parameters tables. Derating is required above 25 °C per the thermal resistance value of 130 °C/W, and this rating applies specifically to the BZX85C13 R0G variant in DO-41 packaging.
How is polarity marked on BZX85C13 R0G?
Polarity on BZX85C13 R0G is indicated by a single cathode band located near one end of the DO-41 glass body, as shown in the Marking Diagram and Mechanical Data sections of the Taiwan Semiconductor datasheet. The banded end corresponds to the cathode terminal, and the unmarked end is the anode.
BZX85C13 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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 10 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)
BZX85C13 R0G FAQ
1.How can I place an order for BZX85C13 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX85C13 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 BZX85C13 R0G reliable?
The price and inventory of BZX85C13 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX85C13 R0G is usually 5 days.
3.What payment methods are accepted for BZX85C13 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX85C13 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX85C13 R0G?
BZX85C13 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX85C13 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 BZX85C13 R0G?
For technical support, including BZX85C13 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX85C13 R0G requirements.
6.How does Aetrix verify that BZX85C13 R0G is sourced from the original manufacturer or authorized distributors?
All BZX85C13 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 BZX85C13 R0G meets industry standards.
7.What is the process for return or replacement of BZX85C13 R0G?
All BZX85C13 R0G units undergo pre-shipment inspection (PSI). If there is an issue with BZX85C13 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 BZX85C13 R0G part is unused and in its original packaging.
Return procedure for BZX85C13 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX85C13 R0G Tags
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