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Taiwan Semiconductor Corporation BZX85C10 R0G
- Part No.:
- BZX85C10 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZX85C10 R0G.pdf
- Description:
- DIODE ZENER 10V 1.3W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,464
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Product details
Overview
BZX85C10 R0G from Taiwan Semiconductor is a 10 V ±5% Zener diode in DO-41 package, rated for 1.3 W power dissipation and operating up to +200 °C junction temperature; it provides precise voltage regulation in low-power DC/DC converters, adapter circuits, and lighting control systems.
For engineers reviewing the BZX85C10 R0G datasheet, BZX85C10 R0G pinout, BZX85C10 R0G application, or BZX85C10 R0G equivalent, key selection criteria include nominal Zener voltage (9.4–10.6 V), test current (7 mA), dynamic impedance (200 Ω max at IZT), leakage current (0.5 µA max at 7.5 V), and hermetically sealed glass DO-41 packaging with tin-plated leads.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and line conditions. Its 1.3 W power rating and 130 °C/W junction-to-ambient thermal resistance support continuous operation in ambient temperatures up to +75 °C without forced cooling.
The device features ±5% tolerance on nominal 10 V Zener voltage, tested under 10 ms pulse conditions, with guaranteed dynamic impedance ≤200 Ω at 7 mA and leakage current ≤0.5 µA at 7.5 V - enabling reliable performance in precision voltage-clamp and low-current reference applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ Nominal | 10 V - precise DC voltage reference point for regulation or clamping |
| VZ Range | 9.4–10.6 V - ensures design margin within ±5% tolerance at 7 mA test current |
| PD | 1.3 W - supports sustained power dissipation in compact DO-41 through-hole layout |
| ZZT | ≤200 Ω - low dynamic impedance maintains stable output under small-signal variations |
| IR @ VR | ≤0.5 µA at 7.5 V - minimal leakage preserves accuracy in high-impedance bias networks |
| TJ Max | +200 °C - enables use in thermally demanding industrial and automotive under-hood environments |
| RθJA | 130 °C/W - defines thermal derating curve for PCB copper area and airflow requirements |
Pinout & Package
DO-41 axial-leaded package with cathode band marking; two-terminal unidirectional configuration. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to lower-potential side of circuit; forms return path during Zener conduction |
| Cathode | Reverse-biased Zener terminal / Voltage reference output node | Marked by band; connected to higher-potential rail to establish regulated voltage at this node |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Ensures long-term parameter stability and moisture resistance in harsh environments |
| ±5% VZ tolerance | Reduces need for post-production trimming in cost-sensitive consumer and industrial designs |
| DO-41 mechanical standardization | Guarantees compatibility with legacy wave-solder and hand-solder assembly processes |
| RoHS-compliant construction | Meets global environmental compliance requirements without lead-free reflow complications |
Applications
| Low-Voltage Stabilizers | On-Board DC/DC Converters |
|---|---|
Use Scenario: Providing stable bias voltage for op-amp input stages or microcontroller reset circuits in battery-powered devices. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining fixed potential across load despite input variation. Use Value: Delivers 10 V reference with ≤200 Ω dynamic impedance and <0.5 µA leakage, minimizing quiescent current draw and drift. | Use Scenario: Clamping feedback node voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Precision voltage clamp protecting error amplifier inputs from overvoltage transients. Use Value: Tight 9.4–10.6 V range and 1.3 W rating enable robust protection without crowbar action or thermal runaway. |
| Lighting Applications | Adapters |
Use Scenario: Setting constant-current threshold in LED driver IC feedback loops for dimmable architectural lighting. IC Role / Device Role / Timing Role: Stable reference for current-sense comparator trip point in analog dimming circuits. Use Value: Low 0.5 µA leakage at 7.5 V prevents false triggering; ±5% tolerance ensures consistent lumen output across production batches. | Use Scenario: Regulating standby voltage rails in AC/DC wall adapters powering IoT sensors and smart home hubs. IC Role / Device Role / Timing Role: Primary-side shunt regulator establishing 10 V reference for optocoupler feedback network. Use Value: Hermetically sealed glass construction withstands repeated thermal cycling during adapter plug/unplug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | Same 10 V nominal, but ±5% tolerance achieved at 25 mA test current; higher ZZT (17 Ω typical vs. 200 Ω max for BZX85C10 R0G) | Optimized for higher-current regulation; less suitable for ultra-low-leakage bias networks | Prefer BZX85C10 R0G when leakage <0.5 µA at 7.5 V is required and test current must be ≤7 mA |
| MMBZ5240BLT1G | SMD SOT-23 package; same 10 V nominal and ±5% tolerance, but lower PD (225 mW) and different thermal profile | Designed for space-constrained PCBs; not mechanically or thermally interchangeable with DO-41 | Choose BZX85C10 R0G for through-hole reliability, higher power handling, and legacy manufacturing compatibility |
Compared with 1N4740A and MMBZ5240BLT1G, the BZX85C10 R0G offers superior leakage performance at low test current and higher power capability in a standardized axial package - making it optimal for industrial adapters and thermally stressed lighting modules where long-term stability and manufacturability are critical.
Availability
BZX85C10 R0G is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and RoHS-compliant through-hole assembly.
Supply support for BZX85C10 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 was designed specifically for cost-effective, high-reliability voltage reference and clamping in mass-produced power supplies and lighting systems - emphasizing hermetic sealing, tight tolerances, and broad voltage coverage.
FAQ
What is the Zener voltage tolerance for BZX85C10 R0G?
The BZX85C10 R0G has a nominal Zener voltage of 10 V with a guaranteed tolerance of ±5%, corresponding to a minimum of 9.4 V and maximum of 10.6 V when tested at 7 mA. This tolerance is specified per the manufacturer's H2301 datasheet revision and applies across the full operating temperature range.
What is the maximum power dissipation of BZX85C10 R0G?
The BZX85C10 R0G is rated for 1.3 W maximum power dissipation at 25 °C ambient temperature. Derating is required above 25 °C at 10.8 mW/°C, based on its 130 °C/W junction-to-ambient thermal resistance - meaning usable power drops to ~0.7 W at 75 °C ambient.
Is BZX85C10 R0G RoHS compliant?
Yes, BZX85C10 R0G is RoHS compliant, as confirmed in the official Taiwan Semiconductor datasheet (Version H2301). It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and uses green compound encapsulation.
What package type does BZX85C10 R0G use?
BZX85C10 R0G uses the DO-41 axial-leaded package, featuring hermetically sealed glass construction, pure tin-plated leads compliant with J-STD-002, and cathode polarity indicated by a visible band. Its outline dimensions match JEDEC DO-41 standards.
What is the Zener impedance of BZX85C10 R0G at its test current?
The BZX85C10 R0G has a maximum Zener impedance (ZZT) of 200 Ω when measured at its specified test current of 7 mA. This value reflects AC impedance derived from superimposing a 10% RMS AC current onto the DC test current, per the manufacturer's test methodology.
BZX85C10 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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 7.5 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)
BZX85C10 R0G FAQ
1.How can I place an order for BZX85C10 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX85C10 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 BZX85C10 R0G reliable?
The price and inventory of BZX85C10 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX85C10 R0G is usually 5 days.
3.What payment methods are accepted for BZX85C10 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX85C10 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX85C10 R0G?
BZX85C10 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX85C10 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 BZX85C10 R0G?
For technical support, including BZX85C10 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX85C10 R0G requirements.
6.How does Aetrix verify that BZX85C10 R0G is sourced from the original manufacturer or authorized distributors?
All BZX85C10 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 BZX85C10 R0G meets industry standards.
7.What is the process for return or replacement of BZX85C10 R0G?
All BZX85C10 R0G units undergo pre-shipment inspection (PSI). If there is an issue with BZX85C10 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 BZX85C10 R0G part is unused and in its original packaging.
Return procedure for BZX85C10 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX85C10 R0G Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
Diodes Incorporated
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