My Inquiry
My Account
Nexperia USA Inc. BZV55-B68,135
.jpg)
- Part No.:
- BZV55-B68,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-B68,135.pdf
- Description:
- DIODE ZENER 68V 500MW LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZV55-B68,135 from Nexperia is a low-power Zener voltage regulator diode in a hermetically sealed glass SOD80C surface-mount package, rated for 66.6 V to 69.4 V nominal Zener voltage at 2 mA test current, with ±2 % tolerance, 150 Ω typical differential resistance, and −90 mV/K temperature coefficient. It delivers stable reference voltage in low-current bias networks for power supply feedback, sensor excitation, and overvoltage clamping in industrial control and instrumentation circuits.
For engineers reviewing the BZV55-B68,135 datasheet, BZV55-B68,135 pinout, BZV55-B68,135 application, or BZV55-B68,135 equivalent, key selection criteria include Zener voltage accuracy at low test current (IZ = 2 mA), thermal coefficient behavior across operating temperature, non-repetitive surge capability (0.1 ms, 40 W), junction-to-solder-point thermal resistance (300 K/W), and SOD80C footprint compatibility with reflow soldering profiles.
Technical Context
This device operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current when applied voltage exceeds its specified Zener breakdown range. Its performance is defined under DC and transient conditions: regulated voltage is specified at IZ = 2 mA, while non-repetitive peak reverse power dissipation (40 W) applies to 100 µs square-wave surges at Tj = 25 °C.
Thermal design relies on its junction-to-solder-point resistance (300 K/W) and junction-to-ambient resistance (380 K/W in free air), with total power dissipation limited to 500 mW at Tj ≤ 50 °C on a 10 × 10 × 0.6 mm ceramic substrate. Capacitance is 35 pF at 1 MHz and VR = 0 V, supporting stable operation in low-frequency reference paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 66.6 V to 69.4 V at IZ = 2 mA - defines precise regulation threshold for feedback or clamping |
| Tolerance | ±2 % - ensures tight voltage matching across production lots without post-assembly trimming |
| Differential Resistance (rdif) | 150 Ω typical at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | −90 mV/K - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs - enables transient overvoltage suppression without failure |
| Total Power Dissipation (Ptot) | 500 mW at Tj ≤ 50 °C on ceramic substrate - sets maximum continuous DC bias power |
| Reverse Current (IR) | 50 nA at VR = 46.6 V - confirms low leakage below breakdown, preserving signal integrity |
Pinout & Package
Hermetically sealed glass SOD80C 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 where Zener breakdown occurs |
| 2 | Anode | Connected to circuit ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass SMD construction | Ensures long-term stability and moisture resistance in harsh environments without conformal coating |
| Low differential resistance | 150 Ω typical enables minimal voltage shift under varying load currents in precision references |
| Controlled temperature coefficient | −90 mV/K allows predictable drift compensation in temperature-critical analog front-ends |
| High surge robustness | 40 W non-repetitive peak power rating supports protection against ESD and line transients |
| Standardized E24 voltage series | 68 V nominal point aligns with common industrial supply rails (e.g., 48 V telecom, 60 V automotive subsystems) |
Applications
| Power Supply Feedback | Sensor Excitation Reference |
|---|---|
|
Use Scenario: Providing stable reference voltage to optocoupler input in isolated flyback converter feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise error amplifier trip point for output regulation. Use Value: ±2 % VZ tolerance and low rdif ensure <1 % output voltage deviation across line/load/temperature variations. |
Use Scenario: Biasing resistive temperature detector (RTD) bridge in industrial temperature transmitter. IC Role / Device Role / Timing Role: Low-drift voltage source supplying constant excitation current via series resistor. Use Value: −90 mV/K temperature coefficient enables predictable offset correction in firmware calibration routines. |
| Overvoltage Clamp | Logic-Level Protection |
|
Use Scenario: Clamping 60 V DC bus voltage spikes in motor drive gate driver supply rail. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing short-duration surges above 68 V threshold. Use Value: 40 W non-repetitive peak power rating handles 100 µs transients without degradation or parametric shift. |
Use Scenario: Protecting 3.3 V microcontroller GPIO from accidental 24 V field wiring faults. IC Role / Device Role / Timing Role: Bidirectional clamp (with series resistor) limiting input voltage to safe logic levels. Use Value: 50 nA reverse leakage at 46.6 V ensures negligible quiescent current draw during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZV55-C68,135 | ±5 % tolerance (64 V–72 V range), higher differential resistance (240 Ω typ), same package and surge rating | Acceptable where cost-sensitive designs tolerate wider regulation window and reduced load regulation | Select for non-critical biasing where ±2 % is unnecessary and BOM simplification is prioritized |
| MMSZ5263B-TP | 68 V nominal, ±5 %, SOD-123 package, 500 mW Ptot, but 350 Ω rdif and no published SZ | Limited suitability in temperature-stable references due to uncharacterized thermal drift | Use only in ambient-stable, low-precision clamping where thermal coefficient is not a design constraint |
Compared with BZV55-B68,135, the BZV55-C68,135 trades voltage accuracy for cost and broadens tolerance, while MMSZ5263B-TP sacrifices thermal predictability and regulation stiffness for alternate packaging-making the BZV55-B68,135 optimal for precision, temperature-aware Zener applications.
Availability
BZV55-B68,135 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, and overvoltage protection circuits requiring stable component supply and traceable sourcing of ±2 % Zener references.
Supply support for BZV55-B68,135 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZV55 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and clamping in space-constrained, thermally demanding applications across industrial automation and instrumentation.
FAQ
What is the recommended test current for measuring Zener voltage on BZV55-B68,135?
The datasheet specifies Zener voltage measurement at IZ = 2 mA, with VZ guaranteed between 66.6 V and 69.4 V under those conditions. Using this current ensures alignment with published tolerance, differential resistance, and temperature coefficient values-deviating significantly affects measured voltage due to the diode's nonlinear IV curve.
Can BZV55-B68,135 be used in series or parallel configurations?
No-this Zener is designed for single-device shunt regulation. Series connection introduces mismatched temperature coefficients and unequal voltage sharing; parallel use causes current hogging due to parameter spread. For higher power or voltage, select purpose-built alternatives like stacked Zeners or integrated regulators instead of ad-hoc combinations.
How does the −90 mV/K temperature coefficient impact circuit performance?
A negative coefficient means VZ decreases as junction temperature rises. At 68 V nominal, a +50 °C rise causes ~4.5 V drop-requiring system-level compensation in precision references. This behavior is fully characterized and repeatable, enabling accurate modeling in thermal-aware designs, unlike uncharacterized or zero-TC alternatives.
Is the SOD80C package compatible with standard reflow soldering profiles?
Yes-the SOD80C outline is qualified for lead-free reflow per J-STD-020. The recommended footprint uses 1.70 mm pad width and 2.30 mm pad length with 0.90 mm solder land spacing. Thermal resistance data assumes mounting on a 10 × 10 × 0.6 mm ceramic substrate, so PCB layout must replicate that thermal path for rated power handling.
BZV55-B68,135 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):
- 68 V
- Tolerance:
- ±2%
- 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-B68,135 FAQ
1.How can I place an order for BZV55-B68,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-B68,135 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-B68,135 reliable?
The price and inventory of BZV55-B68,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-B68,135 is usually 5 days.
3.What payment methods are accepted for BZV55-B68,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-B68,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55-B68,135?
BZV55-B68,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55-B68,135 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-B68,135?
For technical support, including BZV55-B68,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-B68,135 requirements.
6.How does Aetrix verify that BZV55-B68,135 is sourced from the original manufacturer or authorized distributors?
All BZV55-B68,135 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-B68,135 meets industry standards.
7.What is the process for return or replacement of BZV55-B68,135?
All BZV55-B68,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-B68,135, 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-B68,135 part is unused and in its original packaging.
Return procedure for BZV55-B68,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV55-B68,135 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
