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Nexperia USA Inc. BZV85-C12,133
- Part No.:
- BZV85-C12,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZV85-C12,133.pdf
- Description:
- DIODE ZENER 12V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:2,756
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Product details
Overview
BZV85-C12,133 from Nexperia is a medium-power Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 12 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation at 25 °C ambient, and 60 W non-repetitive peak reverse power handling. It serves as a precision voltage reference or shunt regulator in low-to-medium power linear power supplies and overvoltage protection circuits.
For engineers reviewing the BZV85-C12,133 datasheet, BZV85-C12,133 pinout, BZV85-C12,133 application, or BZV85-C12,133 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-a) = 175 K/W), differential resistance (rdif ≤ 10 Ω), temperature coefficient (SZ = +6.3 to +10.8 mV/K), and surge current capability (IZSM = 8.4 A at tp = 100 µs).
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 5 mA, delivering stable regulation across junction temperatures from −65 °C to +200 °C. Its differential resistance of ≤10 Ω ensures minimal output voltage variation under load changes, while its positive temperature coefficient (+6.3 to +10.8 mV/K) supports predictable drift behavior in temperature-sensitive designs.
The device uses axial-leaded, hermetically sealed glass construction (SOD66/DO-41) with cathode indicated by a band. Thermal performance is defined with 10 mm lead length on PCB (Rth(j-a) = 175 K/W) and tie-point cooling (Rth(j-t) = 110 K/W at 4 mm), enabling reliable operation in compact board-level implementations without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.4 V to 12.7 V at IZ = 5 mA - defines regulated output voltage range under standard test conditions |
| Differential Resistance (rdif) | ≤10 Ω - limits output voltage change per mA of current variation, critical for regulation stability |
| Temperature Coefficient (SZ) | +6.3 to +10.8 mV/K - quantifies voltage drift per degree Celsius, enabling thermal compensation design |
| Total Power Dissipation (Ptot) | 1.3 W at Tamb = 25 °C with 10 mm leads - sets maximum continuous DC power handling on standard PCB layout |
| Non-repetitive Peak Reverse Power (PZSM) | 60 W at tp = 100 µs - supports transient overvoltage clamping in surge protection applications |
| Reverse Current (IR) | ≤0.2 µA at VR = 9.1 V - ensures low leakage in standby or high-impedance bias networks |
| Forward Voltage (VF) | ≤1 V at IF = 50 mA - defines conduction loss when used in forward-biased configurations (e.g., polarity protection) |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with 2 terminals; cathode identified by a colored band. Package dimensions: D = 2.6 mm max diameter, L = 25.4 mm max length, b = 0.81 mm max lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-bias voltage applied here relative to anode |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential reference; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Ensures long-term parameter stability and moisture resistance in harsh environments |
| E24 voltage grading (±5 %) | Enables precise voltage selection across 33 types from 3.6 V to 75 V for standardized BOM management |
| Low differential resistance (≤10 Ω) | Maintains tight regulation (<0.1 V deviation) across ±10 mA load current variation |
| Controlled temperature coefficient | Positive SZ enables predictable, monotonic drift-facilitates multi-diode temperature compensation schemes |
| High surge capability (60 W, 100 µs) | Clamps ESD and lightning-induced transients without degradation in industrial I/O protection |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
|
Use Scenario: Stabilizing reference voltage for linear regulators or op-amp feedback networks in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing 12 V ±5 % regulation at up to 50 mA load current. Use Value: Enables accurate 12 V rail generation without external feedback resistors or trimming components. |
Use Scenario: Clamping induced surges on 12 V sensor input lines in automotive body control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting line voltage to ≤12.7 V during ISO 7637-2 pulse 1/2a events. Use Value: Absorbs 60 W for 100 µs without parametric shift, preserving downstream ADC and microcontroller integrity. |
| Test Equipment Reference Source | Legacy System Voltage Calibration |
|
Use Scenario: Providing traceable 12 V reference in portable multimeter calibration circuitry. IC Role / Device Role / Timing Role: Precision Zener element operating at 5 mA test current with <10 Ω dynamic impedance. Use Value: Delivers <0.05 % voltage drift over 1000-hour burn-in, meeting ANSI C12.1 metrology requirements. |
Use Scenario: Replacing obsolete 12 V Zeners in field-deployed HVAC control panels requiring RoHS-compliant drop-in replacement. IC Role / Device Role / Timing Role: Direct-fit SOD66 package with identical DO-41 footprint and electrical specs. Use Value: Eliminates PCB redesign while maintaining legacy system accuracy and thermal derating curves. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | Same 12 V nominal rating, but ±5 % tolerance achieved via tighter binning; Ptot = 1 W (not 1.3 W); Rth(j-a) = 190 K/W | Limited to lower-power applications due to 1 W dissipation ceiling; less suitable for thermally constrained PCBs | Select when legacy 1N47xx footprint compatibility is required and thermal margin exceeds 0.3 W |
| BZX85C12 | Same SOD66 package and 12 V rating, but higher rdif (≤16 Ω) and wider VZ spread (11.4–13.0 V); PZSM = 40 W | Lower surge robustness and looser regulation make it unsuitable for precision references or high-energy transients | Prefer for cost-sensitive consumer applications where ±5 % tolerance and 60 W clamping are not mandatory |
Compared with 1N4742A and BZX85C12, BZV85-C12,133 delivers superior thermal performance (1.3 W rating, 175 K/W Rth), tighter regulation (≤10 Ω rdif), and higher transient immunity (60 W vs. 40–60 W), making it optimal for industrial-grade voltage references and ruggedized protection circuits.
Availability
BZV85-C12,133 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, and test equipment reference sources requiring stable component supply across extended production lifecycles.
Supply support for BZV85-C12,133 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete, logic, and MOSFET solutions, with manufacturing rooted in process excellence and automotive-grade quality systems.
The BZV85 series belongs to Nexperia's precision Zener diode product line, engineered specifically for stable voltage reference and shunt regulation in industrial, automotive, and instrumentation applications demanding hermetic reliability and tight parametric control.
FAQ
What is the maximum continuous reverse current this diode can handle at 25 °C?
The BZV85-C12,133 is rated for a maximum continuous forward current of 500 mA, but as a Zener regulator, its steady-state reverse current is limited by power dissipation. At 25 °C ambient and 10 mm lead length, it sustains up to 108 mA (1.3 W ÷ 12 V) continuously without exceeding thermal limits. Derating applies above 25 °C per the 175 K/W thermal resistance.
Does this Zener diode meet automotive AEC-Q200 stress testing requirements?
No-BZV85-C12,133 is not AEC-Q200 qualified. It is specified for industrial and general-purpose applications. While its junction temperature rating extends to 200 °C and it features hermetic glass packaging, it lacks the qualification testing (temperature cycling, humidity bias, mechanical shock) required for automotive use. For AEC-Q200 Zeners, consider Nexperia's PZU series.
Can this device be used in series or parallel configurations for higher voltage or current capability?
Series connection is viable for higher regulated voltage (e.g., two BZV85-C12,133 yield ~24 V), provided matched VZ and temperature coefficients are selected to minimize imbalance. Parallel use is strongly discouraged due to mismatched rdif and thermal runaway risk-even minor VZ differences cause current hogging and potential failure.
How does the 100 µs non-repetitive peak reverse power rating translate to real-world surge handling?
A 60 W rating at 100 µs corresponds to absorbing 6 mJ (60 W × 100 µs) per event. For a 12 V system, this supports clamping a 500 mA surge for 100 µs-or equivalently, a 5 A surge for 10 µs-without parameter shift. This aligns with IEC 61000-4-5 Level 3 surge immunity requirements for industrial equipment interfaces.
BZV85-C12,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
BZV85-C12,133 FAQ
1.How can I place an order for BZV85-C12,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV85-C12,133 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 BZV85-C12,133 reliable?
The price and inventory of BZV85-C12,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV85-C12,133 is usually 5 days.
3.What payment methods are accepted for BZV85-C12,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV85-C12,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV85-C12,133?
BZV85-C12,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV85-C12,133 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 BZV85-C12,133?
For technical support, including BZV85-C12,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV85-C12,133 requirements.
6.How does Aetrix verify that BZV85-C12,133 is sourced from the original manufacturer or authorized distributors?
All BZV85-C12,133 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 BZV85-C12,133 meets industry standards.
7.What is the process for return or replacement of BZV85-C12,133?
All BZV85-C12,133 units undergo pre-shipment inspection (PSI). If there is an issue with BZV85-C12,133, 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 BZV85-C12,133 part is unused and in its original packaging.
Return procedure for BZV85-C12,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV85-C12,133 Tags
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