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Nexperia USA Inc. BZX585-C8V2,135
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- Part No.:
- BZX585-C8V2,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C8V2,135.pdf
- Description:
- DIODE ZENER 8.2V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX585-C8V2,135 from Nexperia is a Zener voltage regulator diode in SOD523 (SC-79) package, providing precise 8.2 V nominal regulation at 5 mA test current with ±5 % tolerance, 20 Ω typical differential resistance, and 0.7 µA maximum reverse leakage at 6.2 V. It delivers stable reference voltage for low-power biasing, overvoltage clamping, and signal-level voltage stabilization in space-constrained consumer and industrial PCBs.
For engineers reviewing the BZX585-C8V2,135 datasheet, BZX585-C8V2,135 pinout, BZX585-C8V2,135 application, or BZX585-C8V2,135 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (65 K/W junction-to-solder-point), non-repetitive surge capability (40 W, 100 µs), forward voltage (1.1 V @ 100 mA), and SC-79 footprint compatibility with high-density layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its cathode-anode terminals under controlled current conditions. Its temperature coefficient of +3.2 mV/K at 5 mA enables predictable drift behavior in ambient ranges from −65 °C to +150 °C.
The device features low parasitic capacitance (150 pF @ 0 V, 1 MHz) and fast transient response due to its ultra-small SOD523 package, making it suitable for noise-sensitive analog references and compact power-supply feedback networks where board area and thermal mass are constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.79 V to 8.61 V at IZ = 5 mA - defines usable regulation range for precision biasing |
| Differential Resistance (rdiff) | 20 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current (IR) | 0.7 µA max at VR = 6.2 V - ensures minimal quiescent current in standby circuits |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs square wave - supports ESD/transient suppression without failure |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 with 35 mm² copper - sets continuous thermal design limit |
| Junction-to-Solder-Point Rth | 65 K/W - enables accurate thermal modeling when mounted on standard PCB pads |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - defines conduction loss during forward-biased 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. Designed for reflow soldering with standardized footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during Zener operation |
| 2 (A) | Anode | Connected to circuit ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical reference applications without trimming |
| Low differential resistance (20 Ω typ.) | Minimizes output voltage shift under varying load currents in feedback loops |
| Non-repetitive peak power (40 W) | Provides robustness against short-duration surges without derating continuous operation |
| Ultra-compact SOD523 footprint | Reduces PCB area by >50 % vs. SOD323, supporting miniaturized wearables and IoT sensors |
| 65 K/W junction-to-solder-point thermal resistance | Allows accurate thermal simulation using standard PCB copper pour assumptions |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp for MCU I/O |
|---|---|
Use Scenario: Stabilizing feedback voltage in low-current linear regulators or switching converter error amplifiers. IC Role / Device Role / Timing Role: Provides fixed 8.2 V reference to comparator input, enabling accurate output voltage setpoint. Use Value: Maintains ±0.41 V regulation window over temperature and current, reducing output drift in battery-powered systems. |
Use Scenario: Protecting 3.3 V or 5 V microcontroller GPIO pins from accidental 12 V misconnection or ESD events. IC Role / Device Role / Timing Role: Acts as shunt clamp, conducting excess voltage above 8.2 V to ground before damage threshold is reached. Use Value: Limits transient voltage to ≤8.61 V with <0.7 µA leakage at operating voltage, preserving signal integrity and I/O reliability. |
| Low-Power Sensor Biasing | Signal-Level DC Restoration |
Use Scenario: Generating stable bias voltage for analog sensor front-ends (e.g., thermistor bridges or photodiode amps). IC Role / Device Role / Timing Role: Supplies regulated excitation voltage independent of supply rail variation, improving measurement linearity. Use Value: Delivers <20 Ω dynamic impedance and +3.2 mV/K tempco, enabling sub-0.5 % full-scale error in 0–70 °C industrial environments. |
Use Scenario: Restoring DC level of AC-coupled audio or data signals in portable audio codecs or interface receivers. IC Role / Device Role / Timing Role: Clamps negative swing to −0.7 V while regulating positive peak to +8.2 V via series resistor network. Use Value: Achieves <150 pF capacitance and fast recovery, minimizing signal distortion in 20 kHz bandwidth applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B8V2,135 | ±2 % tolerance (vs. ±5 %); 15 Ω rdiff typ. (vs. 20 Ω); identical SOD523 package and thermal specs | Required where tighter voltage accuracy or lower dynamic impedance is critical for high-precision references | Select when regulation stability under varying load or temperature is prioritized over cost |
| MMSZ5231B-7-F | ±5 % tolerance; 30 Ω rdiff typ.; SOD-123 package (2.7 × 1.6 mm vs. SOD523's 1.25 × 0.85 mm) | Used where higher surge rating (500 mW Ptot) is needed but board space allows larger footprint | Choose for legacy designs already using SOD-123 or where thermal margin exceeds SOD523 limits |
Compared with BZX585-C8V2,135, the BZX585-B8V2,135 offers tighter regulation at the expense of higher unit cost, while MMSZ5231B-7-F trades miniaturization for greater power handling and wider industry adoption-making the C-grade optimal for cost-sensitive, space-constrained applications requiring moderate accuracy.
Availability
BZX585-C8V2,135 is available at Aetrix Electronics and suitable for power supply feedback reference, overvoltage clamp for MCU I/O, and low-power sensor biasing requiring stable component supply across prototyping, NPI, and volume production phases.
Supply support for BZX585-C8V2,135 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 leading semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered for reliable voltage regulation and transient protection in miniaturized, cost-sensitive electronic systems.
FAQ
What is the maximum continuous reverse current for BZX585-C8V2,135?
The absolute maximum continuous reverse current is not explicitly specified, but the device is rated for 300 mW total power dissipation at 25 °C ambient on FR4 with 35 mm² copper. At 8.2 V Zener voltage, this corresponds to approximately 36.6 mA average reverse current under ideal thermal conditions. Derating is required above 25 °C per the 350 K/W junction-to-ambient thermal resistance.
Can BZX585-C8V2,135 be used in place of a 3.3 V Zener diode?
No - BZX585-C8V2,135 has a nominal Zener voltage of 8.2 V (range 7.79–8.61 V), which is incompatible with 3.3 V regulation requirements. Using it would result in excessive voltage drop and potential circuit malfunction. For 3.3 V regulation, select BZX585-C3V3,135 or equivalent with matching voltage grade and tolerance.
Is the SOD523 package compatible with standard reflow profiles?
Yes - the SOD523 package is qualified for lead-free reflow soldering per J-STD-020. The recommended profile includes peak temperature ≤260 °C, time above liquidus 60–150 seconds, and ramp-up rate ≤3 °C/s. Figure 12 in the datasheet provides the exact solder land pattern dimensions for reliable assembly.
Does BZX585-C8V2,135 have automotive qualification?
No - the BZX585-C8V2,135 is not AEC-Q200 qualified. Nexperia explicitly states in the legal disclaimers that unless otherwise noted in the datasheet, products are non-automotive qualified and not tested to automotive reliability or environmental standards. Use in automotive applications requires customer validation and assumes full liability.
BZX585-C8V2,135 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:
- ±5%
- 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
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX585-C8V2,135 FAQ
1.How can I place an order for BZX585-C8V2,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C8V2,135 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 BZX585-C8V2,135 reliable?
The price and inventory of BZX585-C8V2,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C8V2,135 is usually 5 days.
3.What payment methods are accepted for BZX585-C8V2,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C8V2,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C8V2,135?
BZX585-C8V2,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C8V2,135 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 BZX585-C8V2,135?
For technical support, including BZX585-C8V2,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C8V2,135 requirements.
6.How does Aetrix verify that BZX585-C8V2,135 is sourced from the original manufacturer or authorized distributors?
All BZX585-C8V2,135 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 BZX585-C8V2,135 meets industry standards.
7.What is the process for return or replacement of BZX585-C8V2,135?
All BZX585-C8V2,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C8V2,135, 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 BZX585-C8V2,135 part is unused and in its original packaging.
Return procedure for BZX585-C8V2,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C8V2,135 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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