My Inquiry
My Account
Nexperia USA Inc. BZX585-B6V8,115
.jpg)
- Part No.:
- BZX585-B6V8,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-B6V8,115.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,072
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX585-B6V8,115 from Nexperia is a 6.8 V ±2 % tolerance Zener diode in SOD523 (SC-79) package, designed for precision voltage regulation and reference functions in space-constrained PCBs. It delivers 300 mW total power dissipation, 215 A non-repetitive peak reverse current at 100 µs, and 30 Ω typical differential resistance at 5 mA, enabling stable clamping in low-power sensor biasing and power rail monitoring circuits.
For engineers reviewing the BZX585-B6V8,115 datasheet, BZX585-B6V8,115 pinout, BZX585-B6V8,115 application, or BZX585-B6V8,115 equivalent, key selection criteria include its 6.8 V nominal Zener voltage with ±2 % tolerance, ultra-small SOD523 footprint, low thermal resistance (65 K/W to solder point), and verified performance under transient surge conditions per IEC 60134 limiting values.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 6.8 V reference across load variations and temperature shifts. Its 1.2 mV/K temperature coefficient at 5 mA ensures predictable drift behavior in ambient ranges from −65 °C to +150 °C, supporting reliable operation in industrial-grade embedded systems.
The device features low junction-to-solder-point thermal resistance (65 K/W), enabling effective heat transfer from the cathode tab to PCB copper, and exhibits 2.0 pF diode capacitance at 1 MHz and 0 V reverse bias-critical for high-frequency noise suppression in analog signal conditioning paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.66 V to 6.94 V at IZ = 5 mA - defines precise regulation window for 6.8 V nominal rail stabilization |
| Tolerance | ±2 % - enables tighter voltage margin control than ±5 % variants in precision feedback loops |
| Differential Resistance (rdiff) | 30 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 with 35 mm² cathode Cu - sets continuous DC power handling limit |
| Non-repetitive Peak Reverse Current (IZSM) | 215 A at tp = 100 µs, square wave - supports transient overvoltage protection in ESD-prone interfaces |
| Reverse Current (IR) | 2.0 µA max at VR = 4.5 V - ensures minimal leakage in high-impedance reference nodes |
| Thermal Resistance (Rth(j-sp)) | 65 K/W junction-to-solder-point - enables efficient thermal coupling to PCB for sustained pulse operation |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead surface-mount plastic package: 1.25 mm × 0.85 mm body, 0.65 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential reference; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | Enables placement in dense layouts where 0603 or larger packages are prohibitive, reducing board area by >50 % vs. SOD323 |
| Low differential resistance | 30 Ω typical at 5 mA improves load regulation error to <0.15 % per 1 mA load change |
| Controlled temperature coefficient | +1.2 mV/K at 5 mA minimizes drift-induced offset in 0–70 °C operating range |
| High surge capability | 40 W non-repetitive peak reverse power at 100 µs allows robust handling of IEC 61000-4-5 level 3 surges |
| Low junction capacitance | 2.0 pF at 1 MHz / 0 V enables use in RF-coupled bias networks without signal attenuation |
Applications
| Power Supply Rail Clamping | Sensor Bias Reference |
|---|---|
Use Scenario: Protecting microcontroller I/O pins from overvoltage transients on 5 V or 3.3 V supply rails. IC Role / Device Role / Timing Role: Zener clamp placed between rail and ground to shunt excess energy above 6.8 V threshold. Use Value: Limits voltage excursion to ≤7.14 V (6.94 V + 200 mV forward drop), preventing latch-up in downstream logic. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in industrial process sensors. IC Role / Device Role / Timing Role: Precision voltage reference source for constant-current generator circuitry. Use Value: ±2 % tolerance and 30 Ω rdiff ensure excitation accuracy better than ±0.3 % over 10–100 µA load range. |
| ADC Reference Stabilization | Low-Power Voltage Monitor |
Use Scenario: Generating a clean 6.8 V reference for 12-bit SAR ADCs in battery-powered data loggers. IC Role / Device Role / Timing Role: Low-noise, low-capacitance reference node decoupled from noisy digital supplies. Use Value: 2.0 pF capacitance and <2 µA leakage prevent reference droop and sampling error during conversion cycles. |
Use Scenario: Monitoring brown-out condition on 6.8 V auxiliary supply in telecom line cards. IC Role / Device Role / Timing Role: Threshold detector feeding comparator input via resistor divider. Use Value: Tight 6.66–6.94 V Zener band enables detection window of ±3 %, rejecting ripple up to 200 mVpp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-C6V8,115 | ±5 % tolerance (6.46–7.14 V), higher rdiff (6–15 Ω), same package and Ptot | Acceptable where tighter regulation not required; lower cost for non-critical biasing | Select when budget constraints outweigh precision needs and system tolerances allow ±5 % variation |
| MMSZ5236B-7-F | 6.8 V ±5 %, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, 10 Ω rdiff | Higher power handling but 3× larger footprint; suited for higher-current regulation | Choose only if board layout permits larger package and ≥500 mW continuous dissipation is needed |
Compared with BZX585-C6V8,115, the BZX585-B6V8,115 offers tighter voltage control critical for reference stability; versus MMSZ5236B-7-F, it sacrifices power rating and rdiff for 60 % smaller PCB area-making it optimal for miniaturized, low-power designs where precision and size dominate.
Availability
BZX585-B6V8,115 is available at Aetrix Electronics and suitable for industrial sensor modules, portable medical devices, and IoT edge node power management requiring stable component supply, consistent parametric performance, and long-term obsolescence mitigation.
Supply support for BZX585-B6V8,115 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 focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, high-reliability voltage regulation in space- and power-constrained applications such as wearables, smart meters, and modular PLC I/O modules.
FAQ
What is the maximum continuous forward current for BZX585-B6V8,115?
The absolute maximum forward current is 200 mA per IEC 60134 limiting values. However, forward conduction is not its intended operating mode; sustained forward bias above 100 mA risks exceeding thermal limits due to 1.1 V forward voltage drop and 350 K/W junction-to-ambient resistance.
Can BZX585-B6V8,115 be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or external current-sharing resistors with derated total power.
How does the cathode marking align with the SOD523 package outline?
The cathode is identified by a visible bar on the top surface of the SOD523 package, aligned with Pin 1 per Figure 11 in the datasheet. When viewed from above with the marking bar leftmost, Pin 1 (cathode) is the left terminal and Pin 2 (anode) is the right terminal.
What is the recommended PCB pad layout for reflow soldering?
Use the footprint in Figure 12: 0.5 mm wide × 2.15 mm long solder lands, 0.4 mm solder resist opening, and 1.2 mm center-to-center spacing. Ensure ≥35 mm² copper area connected to the cathode pad to achieve specified 65 K/W junction-to-solder-point thermal resistance.
BZX585-B6V8,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX585-B6V8,115 FAQ
1.How can I place an order for BZX585-B6V8,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-B6V8,115 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 BZX585-B6V8,115 reliable?
The price and inventory of BZX585-B6V8,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-B6V8,115 is usually 5 days.
3.What payment methods are accepted for BZX585-B6V8,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-B6V8,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-B6V8,115?
BZX585-B6V8,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-B6V8,115 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 BZX585-B6V8,115?
For technical support, including BZX585-B6V8,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-B6V8,115 requirements.
6.How does Aetrix verify that BZX585-B6V8,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-B6V8,115 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 BZX585-B6V8,115 meets industry standards.
7.What is the process for return or replacement of BZX585-B6V8,115?
All BZX585-B6V8,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-B6V8,115, 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 BZX585-B6V8,115 part is unused and in its original packaging.
Return procedure for BZX585-B6V8,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-B6V8,115 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…
