My Inquiry
My Account
Nexperia USA Inc. BZX585-B8V2,115
.jpg)
- Part No.:
- BZX585-B8V2,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-B8V2,115.pdf
- Description:
- DIODE ZENER 8.2V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,213
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX585-B8V2,115 from Nexperia is a ±2 % tolerance Zener diode in SOD523 (SC-79) package, rated for 8.2 V nominal regulation voltage at 5 mA, with 300 mW total power dissipation and 40 W non-repetitive peak reverse power capability. It serves as a precision voltage reference or overvoltage clamp in space-constrained consumer and industrial power management circuits.
For engineers reviewing the BZX585-B8V2,115 datasheet, BZX585-B8V2,115 pinout, BZX585-B8V2,115 application, or BZX585-B8V2,115 equivalent, key selection criteria include its 8.2 V Zener voltage tolerance, low 40 Ω typical differential resistance at 5 mA, −1.9 mV/K temperature coefficient, and ultra-small SOD523 footprint for high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load or input conditions. Its design targets low-leakage, low-capacitance operation with 0.7 µA maximum reverse current at 6.6 V and 150 pF diode capacitance at 0 V.
The device features a negative temperature coefficient of −1.9 mV/K at 5 mA, enabling predictable thermal drift compensation in reference circuits. Its SOD523 package delivers 65 K/W junction-to-solder-point thermal resistance when mounted on FR4 with 35 mm² copper area at the cathode tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.04 V to 8.36 V at IZ = 5 mA - defines stable regulation range for precision biasing |
| Differential Resistance (rdiff) | 20 Ω typ. at IZ = 5 mA - ensures minimal output voltage variation under load changes |
| Temperature Coefficient (SZ) | −1.9 mV/K at IZ = 5 mA - enables predictable thermal drift correction in reference designs |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets continuous operating limit on standard FR4 PCB |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 µs - supports transient surge suppression in protection circuits |
| Reverse Current (IR) | 0.7 µA max. at VR = 6.6 V - guarantees low leakage in standby or battery-powered modes |
| Forward Voltage (VF) | 1.1 V max. at IF = 100 mA - confirms low conduction loss if used in forward-biased configurations |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead surface-mount plastic package with 2 leads; dimensions: 1.25 mm × 0.85 mm × 0.65 mm (L × W × H), 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 rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation accuracy than ±5 % variants, reducing need for post-calibration in reference circuits |
| Ultra-small SOD523 package | Reduces board area by >50 % vs. SOD323, supporting miniaturized wearables and IoT sensor nodes |
| Low 40 Ω differential resistance | Minimizes regulation error under dynamic load steps, critical for stable analog supply rails |
| −1.9 mV/K temperature coefficient | Allows predictable thermal drift modeling for compensated voltage references in industrial temperature ranges |
| 40 W non-repetitive surge rating | Provides robust ESD and transient immunity without external TVS, simplifying protection schemes |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Circuit |
|---|---|
|
Use Scenario: Providing stable 8.2 V reference for ADC biasing or op-amp feedback networks in battery-powered sensors. IC Role / Device Role / Timing Role: Zener diode functions as two-terminal shunt voltage regulator, maintaining fixed potential despite input ripple or load variation. Use Value: Delivers <1 % regulation error over 0–5 mA current range due to low 40 Ω rdiff, ensuring consistent analog measurement accuracy. |
Use Scenario: Protecting microcontroller GPIO pins from 12 V rail transients in automotive body control modules. IC Role / Device Role / Timing Role: Acts as passive clamping element, conducting excess energy to ground when reverse voltage exceeds 8.36 V. Use Value: Absorbs 40 W surges (100 µs) without failure, eliminating need for larger TVS diodes in space-limited ECUs. |
| Low-Power Sensor Biasing | Portable Device Battery Monitoring |
|
Use Scenario: Biasing photodiode amplifiers in optical heart-rate monitors where quiescent current must stay below 10 µA. IC Role / Device Role / Timing Role: Provides regulated 8.2 V supply while drawing only 0.7 µA leakage at 6.6 V reverse bias. Use Value: Enables multi-week battery life by minimizing standby current drain without sacrificing reference stability. |
Use Scenario: Scaling lithium-ion battery voltage for ADC input in Bluetooth earbuds with 0.5 mm pitch PCB constraints. IC Role / Device Role / Timing Role: Forms part of resistive divider network where Zener's tight 8.04–8.36 V tolerance reduces scaling error. Use Value: Achieves ±0.5 % full-scale voltage reading accuracy, improving state-of-charge estimation resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-C8V2,115 | ±5 % tolerance (8.0–8.6 V range) vs. ±2 % (8.04–8.36 V) | Acceptable where cost sensitivity outweighs regulation precision | Select for cost-driven consumer products where ±5 % voltage margin is acceptable |
| MMSZ5231B-7-F | Same 8.2 V nominal, but SOD-123 package (2.7 × 1.4 mm) and higher 500 mW Ptot | Preferred in thermally demanding environments requiring higher continuous power | Choose when board layout allows larger footprint and thermal performance exceeds 300 mW requirement |
Compared with BZX585-C8V2,115, the BZX585-B8V2,115 offers tighter voltage control for precision references; compared with MMSZ5231B-7-F, it trades thermal headroom for 55 % smaller PCB area-critical in ultra-compact portable designs.
Availability
BZX585-B8V2,115 is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection, low-power sensor biasing, and portable battery monitoring requiring stable component supply and guaranteed long-term sourcing.
Supply support for BZX585-B8V2,115 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 with focus on efficiency, miniaturization, and robustness.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for space-constrained regulation and clamping in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous reverse current for BZX585-B8V2,115?
The device supports up to 200 mA forward current, but as a Zener diode, its continuous reverse (Zener) current is limited by power dissipation. At 25 °C ambient on FR4 with 35 mm² copper, the maximum continuous Zener current is 36.6 mA (300 mW ÷ 8.2 V), derated above 25 °C per 350 K/W junction-to-ambient thermal resistance.
Can BZX585-B8V2,115 be used in place of a 5.1 V Zener diode?
No-BZX585-B8V2,115 is specified for 8.2 V nominal Zener voltage with ±2 % tolerance (8.04–8.36 V). Substituting it for a 5.1 V Zener would result in incorrect regulation level and potential circuit malfunction. Use BZX585-B5V1,115 for 5.1 V applications.
How does the SOD523 package affect thermal performance?
The SOD523 package has a junction-to-solder-point thermal resistance of 65 K/W, significantly lower than junction-to-ambient (350 K/W). Effective heat transfer requires direct copper connection to the cathode pad; thermal relief traces or small pads degrade performance and risk exceeding 150 °C junction temperature at full power.
Is BZX585-B8V2,115 suitable for automotive applications?
No-this part is not AEC-Q200 qualified. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like BZX585-B8V2,115 are unsuitable for safety-critical or automotive use. For automotive systems, select AEC-Q200 qualified Zeners such as PZMxx series with appropriate qualification documentation.
BZX585-B8V2,115 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):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX585-B8V2,115 FAQ
1.How can I place an order for BZX585-B8V2,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-B8V2,115 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-B8V2,115 reliable?
The price and inventory of BZX585-B8V2,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-B8V2,115 is usually 5 days.
3.What payment methods are accepted for BZX585-B8V2,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-B8V2,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-B8V2,115?
BZX585-B8V2,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-B8V2,115 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-B8V2,115?
For technical support, including BZX585-B8V2,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-B8V2,115 requirements.
6.How does Aetrix verify that BZX585-B8V2,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-B8V2,115 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-B8V2,115 meets industry standards.
7.What is the process for return or replacement of BZX585-B8V2,115?
All BZX585-B8V2,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-B8V2,115, 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-B8V2,115 part is unused and in its original packaging.
Return procedure for BZX585-B8V2,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-B8V2,115 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…
