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Nexperia USA Inc. BZX585-C13,135
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- Part No.:
- BZX585-C13,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C13,135.pdf
- Description:
- DIODE ZENER 13V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:19,880
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Product details
Overview
BZX585-C13,135 from Nexperia is a ±5 % tolerance Zener diode in SOD523 (SC-79) package, rated for 13 V nominal regulation voltage, 300 mW total power dissipation, and 40 W non-repetitive peak reverse power at 100 µs pulse width-used for precision voltage reference and overvoltage clamping in low-power sensor signal conditioning circuits.
For engineers reviewing the BZX585-C13,135 datasheet, BZX585-C13,135 pinout, BZX585-C13,135 application, or BZX585-C13,135 equivalent, this device supports stable 13 V regulation under 5 mA test current with 25 Ω typical differential resistance, low 0.1 µA reverse leakage at 10.4 V, and thermal resistance of 65 K/W to solder point-key for compact PCB designs requiring tight voltage tolerance and surge resilience.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 13 V nominal Zener voltage (VZ) at IZ = 5 mA, exhibiting a temperature coefficient of +7.0 mV/K at that current-enabling predictable drift compensation in bias networks. Its low 25 Ω typical differential resistance (rdiff) ensures minimal output impedance variation across load changes.
The device sustains 40 W non-repetitive peak reverse power (PZSM) for 100 µs square-wave surges at Tj = 25 °C, while maintaining 300 mW steady-state dissipation on FR4 PCB with 35 mm² copper area-making it suitable for transient suppression in space-constrained DC rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 13 V at IZ = 5 mA - defines precise regulation point for feedback or reference circuits |
| Tolerance | ±5 % - allows selection within 12.35 V to 13.65 V range without binning |
| Ptot | 300 mW at Tamb = 25 °C - sets maximum continuous power handling on standard FR4 layout |
| rdiff | 25 Ω (typ.) at IZ = 5 mA - determines output impedance stability under varying load current |
| IR | 0.1 µA max at VR = 10.4 V - ensures minimal leakage in high-impedance bias networks |
| Rth(j-sp) | 65 K/W - enables accurate junction temperature estimation from solder-point thermal measurement |
| PZSM | 40 W at tp = 100 µs - supports ESD/inductive spike clamping without degradation |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead surface-mount package: 1.25 mm × 0.85 mm footprint, 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; polarity marker aligns with PCB silkscreen bar |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Non-repetitive peak reverse power | 40 W for 100 µs pulses - enables robust transient suppression without derating |
| Total power dissipation | 300 mW on standard FR4 - eliminates need for thermal vias in most low-power applications |
| Differential resistance | 25 Ω typical at 5 mA - delivers stable regulation despite ±1 mA load variation |
| Reverse leakage | ≤ 0.1 µA at 10.4 V - preserves accuracy in microamp-level bias chains |
| Temperature coefficient | +7.0 mV/K at 5 mA - permits predictable drift modeling in ambient-varying environments |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC input stages in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 13 V rail for op-amp biasing and ADC reference divider. Use Value: ±5 % tolerance and 25 Ω rdiff ensure <0.5 LSB error contribution across 0–70 °C operating range. |
Use Scenario: Clamping induced transients on USB VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Reverse-biased transient voltage suppressor limiting VBUS to ≤13.65 V during 100 µs ESD bursts. Use Value: 40 W PZSM rating absorbs IEC 61000-4-2 Level 4 (15 kV air) surges without parametric shift. |
| Low-Power IoT Node Voltage Reference | Automotive Body Control Module Bias Network |
|
Use Scenario: Generating stable 13 V supply for RF front-end LDO input in battery-powered BLE modules. IC Role / Device Role / Timing Role: Precision shunt regulator establishing clean intermediate rail upstream of 3.3 V LDO. Use Value: 0.1 µA IR minimizes quiescent current draw, extending coin-cell life beyond 5 years. |
Use Scenario: Providing regulated 13 V bias to window motor driver IC logic inputs in 12 V automotive systems. IC Role / Device Role / Timing Role: Load-independent voltage clamp protecting CMOS inputs against load-dump spikes up to 25 V. Use Value: 65 K/W Rth(j-sp) allows direct thermal coupling to chassis ground plane for reliable 150 °C junction survival. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B13,115 | ±2 % tolerance (12.74–13.26 V), higher cost, tighter rdiff (25 Ω typ. vs. 25 Ω) | Required where 10 mV regulation window is mandatory for analog sensor calibration | Select when absolute voltage accuracy outweighs cost sensitivity and board space constraints |
| MMSZ5243B-7-F | 13 V ±5 %, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, 30 Ω rdiff | Preferred for higher-power clamping where thermal margin >300 mW is needed | Choose when PCB layout allows larger footprint and system requires 200 mW extra continuous dissipation headroom |
Compared with BZX585-C13,135, the BZX585-B13,115 offers tighter voltage control at the expense of unit cost, while MMSZ5243B-7-F trades miniaturization for higher power handling-making the C13 optimal for space-constrained, cost-sensitive 13 V reference designs needing proven surge resilience.
Availability
BZX585-C13,135 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB port overvoltage protection, and low-power IoT node voltage reference requiring stable component supply across long-lifecycle embedded programs.
Supply support for BZX585-C13,135 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, low-power voltage regulation and transient suppression in consumer, industrial, and communications equipment where SOD523 footprint and 300 mW dissipation are critical.
FAQ
What is the maximum reverse voltage before breakdown for BZX585-C13,135?
The rated Zener voltage is 13 V nominal at 5 mA test current, with guaranteed minimum and maximum values of 12.35 V and 13.65 V respectively under those conditions. Breakdown begins gradually above ~10.4 V (where reverse current reaches 0.1 µA), but stable regulation occurs only within the specified VZ band at defined IZ.
Can BZX585-C13,135 be used in place of a 12 V Zener diode?
No-it is not a drop-in replacement for 12 V Zeners due to its 13 V nominal rating and ±5 % tolerance (12.35–13.65 V range). Substituting it for a 12 V part would raise regulated voltage by ≥0.35 V minimum, potentially exceeding downstream IC absolute maximum ratings or altering feedback loop setpoints.
How does the SOD523 package affect thermal performance?
The SOD523 package delivers Rth(j-sp) = 65 K/W to the cathode solder point, enabling effective heat transfer to PCB copper. However, its small size limits steady-state power handling to 300 mW on standard FR4-so thermal design must prioritize cathode-side copper area and avoid encapsulation that impedes convection.
Is BZX585-C13,135 suitable for automotive applications?
No-this device is not AEC-Q200 qualified and lacks automotive-grade screening, temperature cycling validation, or extended lifetime testing. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use in body control modules or infotainment systems requires formal automotive-qualified alternatives.
BZX585-C13,135 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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 µA @ 8 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-C13,135 FAQ
1.How can I place an order for BZX585-C13,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C13,135 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-C13,135 reliable?
The price and inventory of BZX585-C13,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C13,135 is usually 5 days.
3.What payment methods are accepted for BZX585-C13,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C13,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C13,135?
BZX585-C13,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C13,135 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-C13,135?
For technical support, including BZX585-C13,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C13,135 requirements.
6.How does Aetrix verify that BZX585-C13,135 is sourced from the original manufacturer or authorized distributors?
All BZX585-C13,135 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-C13,135 meets industry standards.
7.What is the process for return or replacement of BZX585-C13,135?
All BZX585-C13,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C13,135, 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-C13,135 part is unused and in its original packaging.
Return procedure for BZX585-C13,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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