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Nexperia USA Inc. BZV55-C51,135
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- Part No.:
- BZV55-C51,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-C51,135.pdf
- Description:
- DIODE ZENER 51V 500MW LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:7,718
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Product details
Overview
BZV55-C51,135 from Nexperia is a ±5 % tolerance silicon Zener diode in a hermetically sealed SOD80C glass SMD package, rated for 51 V nominal Zener voltage at 5 mA, 400 mW total power dissipation at Tamb ≤ 50 °C, and 40 W non-repetitive peak reverse power (100 µs square wave). It serves as a precision low-power voltage reference or shunt regulator in analog power supply feedback paths and sensor biasing circuits.
For engineers reviewing the BZV55-C51,135 datasheet, BZV55-C51,135 pinout, BZV55-C51,135 application, or BZV55-C51,135 equivalent, this page delivers verified electrical parameters, thermal resistance values, differential resistance (400 Ω typ. at IZ = 5 mA), temperature coefficient (−0.8 mV/K typ.), and reverse leakage (2 µA max. at VR = 2 V) - all confirmed from Nexperia's Rev. 5 product data sheet.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable DC voltage under varying load or input conditions. Its low differential resistance (400 Ω typ.) ensures minimal output voltage variation with current changes, while its negative temperature coefficient (−0.8 mV/K) enables predictable thermal drift compensation in multi-diode references.
The SOD80C package provides hermetic glass sealing for long-term stability and moisture resistance, with thermal resistance from junction to ambient of 380 K/W in free air and 300 K/W to solder point - critical for thermal design in compact PCB layouts where power dissipation must remain within 400 mW at elevated ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 48 V min. / 54 V max. at IZ = 5 mA - defines usable regulation window for 51 V nominal reference |
| Differential Resistance (rdif) | 400 Ω typ. at IZ = 5 mA - determines output impedance and load regulation error |
| Temperature Coefficient (SZ) | −0.8 mV/K typ. - quantifies voltage drift per degree Celsius for thermal stability analysis |
| Reverse Leakage Current (IR) | 2 µA max. at VR = 2 V - limits standby power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 400 mW at Tamb ≤ 50 °C - sets maximum continuous DC power handling on standard FR-4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs square wave - supports transient overvoltage clamping without failure |
| Junction-to-Ambient Rth | 380 K/W in free air - used to calculate worst-case junction temperature rise under steady-state load |
Pinout & Package
Hermetically sealed glass SOD80C surface-mount package: 3.3–3.7 mm length, 1.45–1.60 mm width, 0.3 mm height; cathode indicated by marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical voltage references without trimming |
| Low differential resistance (400 Ω) | Reduces output voltage deviation under ±1 mA load current change to < ±0.4 V |
| Hermetic glass SOD80C package | Guarantees long-term parameter stability and humidity immunity in industrial environments |
| 400 mW power rating at 50 °C ambient | Supports continuous operation in enclosed enclosures without forced airflow |
| Negative temperature coefficient (−0.8 mV/K) | Allows predictable drift modeling and compensation in temperature-sensitive analog circuits |
Applications
| Power Supply Feedback Reference | Sensor Biasing Network |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies via optocoupler feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 51 V threshold to TL431-like control IC or discrete transistor comparator. Use Value: Maintains ±1.5 % output regulation across line/load/temperature with < 0.5 % drift contribution from Zener itself. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or strain gauges in measurement front-ends. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source replacing higher-cost IC references where 5 % tolerance is acceptable. Use Value: Enables 0.1 °C-equivalent RTD resolution with < 5 ppm/°C effective TC when combined with matched resistor dividers. |
| Overvoltage Clamp Protection | ADC Input Level Translation |
Use Scenario: Protecting microcontroller GPIO or analog inputs from transient surges up to 40 W (100 µs). IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to 54 V peak before downstream circuit damage occurs. Use Value: Absorbs energy without degradation, preserving signal integrity during ESD or inductive kick events. |
Use Scenario: Scaling down 0–60 V industrial sensor outputs to 0–5 V ADC input range using resistive divider + Zener clamp. IC Role / Device Role / Timing Role: Precision upper-rail limiter preventing ADC saturation while maintaining linearity below clamp threshold. Use Value: Ensures full-scale digitization of valid signals while clipping fault conditions at exactly 51 V ±2 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZV55-B51,115 | ±2 % tolerance, 480 Ω rdif, −0.8 mV/K SZ, same SOD80C package | Higher precision required for feedback loops demanding < ±0.5 % output error | Select when tighter voltage tolerance justifies higher unit cost and slightly higher dynamic impedance |
| MMBZ5257BS,115 | ±5 % tolerance, 500 Ω rdif, −1.0 mV/K SZ, SOT-23 package, 350 mW Ptot | Space-constrained designs needing smaller footprint but accepting 50 mW lower power rating | Choose for high-density layouts where 0.3 mm² area saving outweighs 12.5 % power derating |
Compared with BZV55-C51,135, the BZV55-B51,115 offers tighter voltage control at the expense of marginally higher impedance, while the MMBZ5257BS,115 trades thermal performance and power handling for board space - making the original optimal for thermally demanding, medium-precision regulation tasks.
Availability
BZV55-C51,135 is available at Aetrix Electronics and suitable for industrial power supply feedback, sensor biasing, overvoltage protection, and ADC level translation requiring stable component supply and long-term parametric consistency.
Supply support for BZV55-C51,135 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 logic, analog, and discrete components with focus on reliability, efficiency, and miniaturization for industrial and consumer applications.
The BZV55 series belongs to Nexperia's precision Zener diode portfolio, engineered specifically for low-power voltage regulation and reference functions in space- and cost-sensitive designs where hermetic stability and ±5 % tolerance meet system-level accuracy requirements.
FAQ
What is the maximum continuous forward current for BZV55-C51,135?
The absolute maximum forward current is 250 mA per Nexperia's limiting values table. However, forward conduction is not its intended operating mode; sustained forward bias above 10 mA risks thermal overstress due to VF ≈ 0.9 V and limited package dissipation capability.
Can BZV55-C51,135 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and manufacturing spread, causing current hogging when paralleled. Even matched units will thermally diverge, risking thermal runaway. Use a single higher-power device or active regulation instead.
How does the SOD80C package affect thermal performance compared to plastic SMD packages?
The hermetic glass SOD80C has higher thermal resistance (380 K/W j-a) than plastic equivalents like SOT-23 (≈ 450 K/W), but superior long-term stability and moisture resistance. Its lower Rth(j-sp) (300 K/W) improves heat transfer to copper pads, making it preferable for reliability-critical applications despite modest thermal advantage.
Is BZV55-C51,135 suitable for automotive applications?
No - this part is not AEC-Q200 qualified or tested to automotive standards. Nexperia explicitly states non-automotive qualification in the legal disclaimers. For automotive use, select AEC-Q200-compliant Zeners such as PZMxx series with documented qualification reports.
BZV55-C51,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 51 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 180 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 35.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLDS; MiniMelf
BZV55-C51,135 FAQ
1.How can I place an order for BZV55-C51,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-C51,135 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 BZV55-C51,135 reliable?
The price and inventory of BZV55-C51,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-C51,135 is usually 5 days.
3.What payment methods are accepted for BZV55-C51,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-C51,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55-C51,135?
BZV55-C51,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55-C51,135 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 BZV55-C51,135?
For technical support, including BZV55-C51,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-C51,135 requirements.
6.How does Aetrix verify that BZV55-C51,135 is sourced from the original manufacturer or authorized distributors?
All BZV55-C51,135 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 BZV55-C51,135 meets industry standards.
7.What is the process for return or replacement of BZV55-C51,135?
All BZV55-C51,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-C51,135, 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 BZV55-C51,135 part is unused and in its original packaging.
Return procedure for BZV55-C51,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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