Nexperia USA Inc. BZV55-C68,115
- Part No.:
- BZV55-C68,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-C68,115.pdf
- Description:
- DIODE ZENER 68V 500MW LLDS
- Quantity:
- Payment:

- Shipping:

Inventory:182
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Product details
Overview
BZV55-C68,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in a hermetically sealed glass SOD80C surface-mount package, rated for 68 V nominal working voltage at 5 mA test current, 150 Ω typical differential resistance, and 90 mV/K temperature coefficient. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the BZV55-C68,115 datasheet, BZV55-C68,115 pinout, BZV55-C68,115 application, or BZV55-C68,115 equivalent, this page provides verified electrical parameters, thermal behavior under surge conditions, SOD80C footprint compatibility, and validated alternative parts for precision voltage regulation design.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 68 V reference across its cathode–anode terminals when biased with ≥5 mA current. Its 150 Ω typical differential resistance ensures minimal voltage shift under load variation, while the +90 mV/K positive temperature coefficient enables predictable drift compensation in temperature-stable references.
Designed for transient suppression and DC regulation, it supports non-repetitive peak reverse power dissipation up to 40 W (100 µs square wave) and total power dissipation of 500 mW at Tamb ≤ 50 °C. The SOD80C package provides hermetic sealing and thermal resistance of 300 K/W from junction to solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 68 V at IZ = 5 mA - defines precise DC reference point for feedback or clamping |
| Tolerance | ±5 % - specifies maximum deviation from nominal voltage under specified test conditions |
| Differential Resistance (rdif) | 150 Ω typical at IZ = 5 mA - determines output impedance and voltage regulation sensitivity to current change |
| Temperature Coefficient (SZ) | +90 mV/K - quantifies voltage drift per degree Celsius rise, enabling thermal error budgeting |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs - defines single-event surge handling capability without damage |
| Total Power Dissipation (Ptot) | 500 mW at Tamb ≤ 50 °C - sets continuous DC power limit for thermal reliability |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - confirms low-loss conduction in forward bias during fault conditions |
| Reverse Leakage (IR) | ≤50 nA at VR = 47.6 V - ensures negligible current draw below breakdown threshold |
Pinout & Package
The BZV55-C68,115 uses a two-terminal SOD80C hermetically sealed glass surface-mount package measuring 3.7 mm × 1.6 mm × 0.3 mm, with the marking band indicating the cathode terminal. Thermal resistance from junction to solder point is 300 K/W, supporting reliable operation on standard PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked Band) | Cathode | Connected to higher potential node in reverse-bias regulation; carries Zener current into device |
| 2 | Anode | Connected to lower potential node (typically ground or return path); completes reverse-bias current loop |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass SMD packaging | Ensures long-term stability and moisture resistance in industrial environments without conformal coating |
| Low differential resistance (150 Ω) | Minimizes output voltage variation under ±1 mA load current changes in precision reference designs |
| Controlled ±5 % voltage tolerance | Reduces binning requirements and simplifies calibration in cost-sensitive consumer power supplies |
| 40 W non-repetitive surge rating | Provides robust transient immunity against ESD and inductive kickback in sensor interface circuits |
| 300 K/W junction-to-solder-point Rth | Enables direct thermal coupling to copper pour for passive cooling in space-constrained PCBs |
Applications
| Industrial Sensor Signal Conditioning | DC-DC Converter Feedback Reference |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitters operating from 24 V loop power. IC Role / Device Role / Timing Role: Zener diode provides fixed 68 V rail for op-amp biasing and overvoltage clamp before signal amplification. Use Value: 150 Ω rdif limits reference drift to <±3 mV over 0–10 mA load variation, preserving measurement accuracy. |
Use Scenario: Setting upper voltage threshold in isolated flyback converter feedback network using optocoupler-coupled TL431 circuit. IC Role / Device Role / Timing Role: Acts as secondary-side overvoltage protector by shunting excess current when output exceeds 68 V. Use Value: 40 W PZSM withstands transformer leakage energy spikes without degradation during startup or short-circuit events. |
| Programmable Logic Controller Input Protection | Test Equipment Voltage Calibration Standard |
|
Use Scenario: Protecting 24 V digital input channels against field-wiring transients in factory automation I/O modules. IC Role / Device Role / Timing Role: Clamps induced surges above 68 V to prevent damage to downstream Schmitt-trigger inputs. Use Value: Hermetic SOD80C package maintains parameter stability after repeated 1 kV/µs EFT bursts per IEC 61000-4-4. |
Use Scenario: Serving as traceable 68 V reference in benchtop multimeter calibration fixtures requiring <0.1 % long-term drift. IC Role / Device Role / Timing Role: Provides primary voltage standard in resistor-divider networks for 7½-digit DMM self-test routines. Use Value: ±5 % initial tolerance and +90 mV/K SZ allow compensated calibration across –20 °C to +70 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C68 (Vishay) | Same 68 V nominal, ±5 % tolerance, but 200 Ω typical rdif and 350 mW Ptot | Lower power handling limits use in high-current reference paths; suitable only for ≤2 mA regulation loads | Select when legacy BOM compatibility is required and thermal margin exceeds 100 °C ambient |
| MMSZ5263B (ON Semiconductor) | 68 V nominal, ±5 %, 175 Ω rdif, but SOD-123 package (higher Rth(j-a) = 500 K/W) | Reduced surge capability (25 W PZSM) and poorer thermal coupling limit use in high-reliability industrial settings | Choose for cost-sensitive consumer products where board space allows larger footprint and surge risk is low |
Compared with BZV55-C68,115, BZX55-C68 offers identical voltage spec but reduced thermal performance and power handling, while MMSZ5263B trades hermetic reliability for lower cost and wider distribution-making the Nexperia part optimal for applications demanding stable 68 V reference under thermal stress or transient overload.
Availability
BZV55-C68,115 is available at Aetrix Electronics and suitable for industrial sensor conditioning, DC-DC converter feedback, and programmable logic controller input protection requiring stable component supply and guaranteed long-term parametric consistency.
Supply support for BZV55-C68,115 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 optimized for efficiency and miniaturization in industrial, automotive, and computing applications.
The BZV55 series belongs to Nexperia's precision voltage regulation product line, engineered for stable Zener operation in low-power analog systems where hermetic reliability and tight thermal coefficients are critical.
FAQ
What is the maximum continuous Zener current for BZV55-C68,115 at 70 °C ambient?
At 70 °C ambient, derating applies: Ptot drops linearly from 500 mW at 50 °C to 0 mW at 150 °C. At 70 °C, allowable power is 400 mW. With VZ = 68 V, maximum continuous current is 400 mW ÷ 68 V ≈ 5.9 mA - consistent with datasheet IZ = 5 mA test condition and safe long-term operation.
Does BZV55-C68,115 meet JEDEC JESD22-A114 for ESD robustness?
No - the BZV55-C68,115 is not characterized or rated for human-body model (HBM) or charged-device model (CDM) ESD per JEDEC standards. Its primary surge rating is defined for non-repetitive 100 µs square-wave reverse power (40 W), not electrostatic discharge events. External TVS protection is recommended for HBM > 2 kV environments.
Can BZV55-C68,115 be used in series to achieve higher reference voltages?
Yes - multiple BZV55-C68,115 units can be stacked anode-to-cathode to generate integer multiples of 68 V (e.g., two in series yield ~136 V). However, mismatched temperature coefficients cause unequal voltage division under thermal gradient; parallel operation is not recommended due to current hogging from parameter spread.
Is the SOD80C package compatible with standard reflow profiles for lead-free soldering?
Yes - Nexperia specifies full compatibility with IPC/JEDEC J-STD-020D reflow profiles. The SOD80C outline supports peak temperatures up to 260 °C for ≤10 seconds, with thermal mass allowing uniform heating. Reflow footprint dimensions (2.30 mm × 4.30 mm solder lands) are provided in Figure 7 of the datasheet.
BZV55-C68,115 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):
- 68 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 240 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 47.6 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-C68,115 FAQ
1.How can I place an order for BZV55-C68,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-C68,115 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-C68,115 reliable?
The price and inventory of BZV55-C68,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-C68,115 is usually 5 days.
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Once your BZV55-C68,115 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-C68,115?
For technical support, including BZV55-C68,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-C68,115 requirements.
6.How does Aetrix verify that BZV55-C68,115 is sourced from the original manufacturer or authorized distributors?
All BZV55-C68,115 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-C68,115 meets industry standards.
7.What is the process for return or replacement of BZV55-C68,115?
All BZV55-C68,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-C68,115, 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-C68,115 part is unused and in its original packaging.
Return procedure for BZV55-C68,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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