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Nexperia USA Inc. BZV85-C33,133
- Part No.:
- BZV85-C33,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZV85-C33,133.pdf
- Description:
- DIODE ZENER 33V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:4,931
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Product details
Overview
BZV85-C33,133 from Nexperia is a medium-power Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 33 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation, and 60 W non-repetitive peak reverse power. 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-C33,133 datasheet, BZV85-C33,133 pinout, BZV85-C33,133 application, or BZV85-C33,133 equivalent, this device is selected for stable DC voltage stabilization where thermal resistance to tie-point (110 K/W) and low temperature coefficient (±0.05 mV/K at 33 V) are critical for accuracy under varying ambient conditions.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 8 mA and exhibits a differential resistance of 45 Ω at that point. Its junction temperature can reach up to 200 °C, supported by thermal resistance from junction to tie-point of 110 K/W when leads are held at 55 °C at 4 mm from body.
The device features a negative temperature coefficient below 5 V and transitions to positive above ~7.5 V; at 33 V, its typical temperature coefficient is +0.05 mV/K, ensuring minimal drift across operating temperature ranges. Reverse current remains ≤0.05 µA at VR = 23 V, confirming tight leakage control for precision biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 33 V ±5 % - defines regulated output voltage under 8 mA test current with predictable tolerance band for circuit margining |
| Total Power Dissipation | 1.3 W - maximum steady-state power handling on PCB with 1 cm² copper per lead, enabling use in compact board-level regulators |
| Differential Resistance | 45 Ω - small-signal dynamic impedance affecting regulation stiffness and load transient response |
| Temperature Coefficient | +0.05 mV/K - low drift rate ensures <±10 mV shift over −65 °C to +150 °C junction range |
| Non-repetitive Peak Reverse Power | 60 W - supports surge suppression during 100 µs transients without degradation |
| Reverse Current | ≤0.05 µA at 23 V - enables high-impedance bias networks and low-leakage reference designs |
| Forward Voltage | ≤1 V at 50 mA - allows use as polarity-sensitive clamp or dual-function rectifier/Zener in simple protection schemes |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with cathode indicated by a colored band. Leads are tinned copper-clad steel, suitable for wave or hand soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation; carries full load current in shunt configuration |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; establishes reference potential for voltage clamping or regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or industrial environments |
| E24 voltage standardization | Ensures compatibility with legacy designs and simplifies inventory management across 33 discrete voltage options |
| Low thermal resistance to tie-point | 110 K/W enables reliable operation at elevated ambient temperatures without forced cooling |
| Controlled temperature coefficient | +0.05 mV/K at 33 V minimizes calibration recalibration needs in temperature-varying applications |
| High surge robustness | 60 W non-repetitive peak power rating supports IEC 61000-4-5 level 3 surge immunity in AC/DC front-ends |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Voltage |
|---|---|
Use Scenario: Stabilizing 33 V auxiliary rail in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining precise 33 V reference for analog sensor signal conditioning and ADC biasing. Use Value: Delivers ±5 % regulation accuracy with <10 mV thermal drift over −40 °C to +85 °C ambient, eliminating need for active feedback compensation. |
Use Scenario: Providing stable reference for fuel injector driver ICs in 24 V vehicle systems. IC Role / Device Role / Timing Role: Zener clamp protecting gate drive circuitry against load dump transients while supplying clean bias voltage. Use Value: Withstands 60 W surges and maintains <0.05 µA leakage at 23 V, preventing false triggering during cold-crank battery dips. |
| Test Equipment Calibration Reference | Telecom Line Interface Protection |
Use Scenario: Serving as primary voltage standard in handheld multimeter internal reference divider networks. IC Role / Device Role / Timing Role: Precision shunt regulator establishing traceable 33 V node for DAC output scaling and auto-ranging circuitry. Use Value: 45 Ω differential resistance and +0.05 mV/K TC ensure <0.02 % linearity error and <20 ppm/°C gain drift over calibration temperature range. |
Use Scenario: Clamping overvoltage on RS-485 data lines exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting common-mode voltage to 33 V before transceiver input stages. Use Value: 100 µs surge capability and 1.3 W continuous dissipation enable compliance with ITU-T K.20 secondary protection requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A | 33 V ±5 %, 1 W Ptot, TO-204AA (DO-41) package, 50 Ω rdif, +0.06 mV/K TC | Lower power rating limits use in sustained 33 V/30 mA loads; higher rdif increases regulation error under load variation | Select when cost sensitivity outweighs thermal margin or when legacy footprint compatibility is required |
| BZX85C33 | 33 V ±5 %, 1.3 W Ptot, DO-41, 40 Ω rdif, +0.04 mV/K TC, but obsolete per NXP lifecycle notice | Superior regulation stiffness and tighter TC, yet no longer recommended for new designs due to discontinuation | Choose only for repair or continuity builds; not advised for production ramp or long-term supply assurance |
Compared with 1N4749A, BZV85-C33,133 offers 30 % higher surge power and lower thermal resistance; versus obsolete BZX85C33, it provides identical power rating but slightly higher differential resistance-making it the preferred choice for new industrial designs requiring active lifecycle support and Nexperia's extended manufacturing commitment.
Availability
BZV85-C33,133 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage generation, and telecom line interface protection requiring stable component supply with guaranteed long-term availability.
Supply support for BZV85-C33,133 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization for automotive, industrial, and consumer markets.
BZV85-C33,133 belongs to Nexperia's Zener diode portfolio designed specifically for precision voltage regulation and transient suppression in space-constrained, thermally demanding applications where hermetic reliability and E24 standardization are essential.
FAQ
What is the maximum continuous reverse current the BZV85-C33,133 can sustain at 33 V?
The device is not rated for continuous reverse current at 33 V; instead, it regulates by dissipating power as heat. At 33 V, the maximum continuous current is derived from Ptot = 1.3 W, yielding ~39 mA. Exceeding this risks thermal runaway unless heatsinking or derating per ambient temperature is applied.
Does the BZV85-C33,133 meet AEC-Q200 for automotive use?
No-BZV85-C33,133 is not AEC-Q200 qualified. It is intended for industrial and general-purpose applications. For automotive-grade Zener regulation, Nexperia offers the PZU series, which undergoes full AEC-Q200 stress testing and qualification.
How does the marking band correspond to pin 1 on the BZV85-C33,133?
The colored band on the glass body identifies the cathode terminal, which corresponds to pin 1 per Nexperia's official pinning diagram. When oriented with band leftmost, the left lead is cathode (pin 1), and the right lead is anode (pin 2).
Can BZV85-C33,133 be used in series or parallel configurations?
Series connection is permissible for higher voltage references, but parallel use is strongly discouraged due to mismatched Zener impedances causing current hogging. If parallel operation is unavoidable, individual ballast resistors must be added per diode to ensure current sharing.
BZV85-C33,133 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):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23 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-C33,133 FAQ
1.How can I place an order for BZV85-C33,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV85-C33,133 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-C33,133 reliable?
The price and inventory of BZV85-C33,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV85-C33,133 is usually 5 days.
3.What payment methods are accepted for BZV85-C33,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV85-C33,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV85-C33,133?
BZV85-C33,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV85-C33,133 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-C33,133?
For technical support, including BZV85-C33,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV85-C33,133 requirements.
6.How does Aetrix verify that BZV85-C33,133 is sourced from the original manufacturer or authorized distributors?
All BZV85-C33,133 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-C33,133 meets industry standards.
7.What is the process for return or replacement of BZV85-C33,133?
All BZV85-C33,133 units undergo pre-shipment inspection (PSI). If there is an issue with BZV85-C33,133, 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-C33,133 part is unused and in its original packaging.
Return procedure for BZV85-C33,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV85-C33,133 Tags
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