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Nexperia USA Inc. BZT52-C13X
- Part No.:
- BZT52-C13X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C13X.pdf
- Description:
- DIODE ZENER 13.25V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,300
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Product details
Overview
BZT52-C13X from Nexperia is a Zener voltage regulator diode in SOD123 surface-mount package, designed for precision low-power voltage reference and clamping in biasing, protection, and regulation circuits. It delivers a nominal 13 V Zener voltage at 5 mA test current, ±5 % tolerance, 110 Ω maximum differential resistance, and supports up to 590 mW total power dissipation at Tamb ≤ 25 °C - suitable for industrial sensor signal conditioning and microcontroller I/O rail stabilization.
For engineers reviewing the BZT52-C13X datasheet, BZT52-C13X pinout, BZT52-C13X application, or BZT52-C13X equivalent, key selection criteria include its 13 V nominal Zener voltage with 12.4–14.1 V min/max range at IZ = 5 mA, low 0.1 μA reverse leakage at VR = 10 V, thermal resistance of 210 K/W (junction-to-solder point), and SOD123 footprint compatibility with automated PCB assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its 13 V nominal Zener voltage is specified at 5 mA test current, with temperature coefficient of +7.0 to +11.0 mV/K - indicating positive drift with junction temperature rise.
The device exhibits low dynamic impedance (rdif ≤ 110 Ω) and minimal capacitance (Cd ≤ 80 pF at 1 MHz, VR = 0 V), enabling effective high-frequency noise suppression and fast transient response in feedback and clamp applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.4 V to 14.1 V at IZ = 5 mA - defines stable regulation window for reference or clamp operation |
| Tolerance | ±5 % - determines absolute accuracy of regulated voltage in production designs |
| Differential Resistance (rdif) | ≤ 110 Ω - governs load regulation error: ΔVZ ≈ rdif × ΔIZ |
| Reverse Current (IR) | ≤ 0.1 μA at VR = 10 V - ensures minimal standby power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power handling before thermal derating |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity indicator in dual-role circuits |
| Junction Temperature (Tj) | 150 °C maximum - constrains operating ambient and PCB copper area requirements for reliability |
Pinout & Package
SOD123 plastic surface-mounted package: 2-terminal, flat lead, cathode-marked with bar; dimensions: 3.75 mm × 1.7 mm × 1.3 mm (L × W × H); standard reflow-compatible footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to higher potential in Zener regulation; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to lower potential or ground; reverse-biased configuration enables Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Stable 13 V reference | Guaranteed 12.4–14.1 V range at 5 mA enables predictable threshold setting in comparator and ADC reference circuits |
| Low differential resistance | ≤110 Ω minimizes output voltage shift under load variation - critical for precision analog sensing front-ends |
| Small SOD123 footprint | 3.75 × 1.7 mm outline supports high-density PCB layouts and automated placement without sacrificing thermal performance |
| Low leakage current | ≤0.1 μA at 10 V reverse bias reduces quiescent current in battery-powered voltage monitor circuits |
| High surge capability | Non-repetitive peak reverse power up to 40 W (tp = 100 μs) provides robust ESD and transient overvoltage protection |
Applications
| Power Supply Rail Clamp | Microcontroller I/O Protection |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V logic rails against ESD or inductive spikes in industrial control modules. IC Role / Device Role / Timing Role: Zener acts as shunt voltage limiter, conducting excess energy to ground when rail exceeds 13 V. Use Value: Prevents latch-up or damage to downstream logic by limiting transient overvoltage to safe levels below IC absolute maximum ratings. |
Use Scenario: Protecting GPIO pins of ARM Cortex-M microcontrollers from external signal overvoltage during field wiring faults. IC Role / Device Role / Timing Role: Connected anode-to-ground, cathode-to-I/O line - clamps negative transients and limits positive excursions to VZ + VF. Use Value: Enables direct interface with 12 V sensors without level-shifter, while maintaining sub-μA leakage to preserve sleep-mode current budget. |
| Reference Voltage Source | Current Source Biasing |
Use Scenario: Generating stable 13 V reference for op-amp-based current sensing in motor driver feedback loops. IC Role / Device Role / Timing Role: Provides fixed voltage node for resistor-based current setpoint in constant-current LED or solenoid drivers. Use Value: Delivers <1 % regulation error over 1–10 mA operating range due to low rdif and tight VZ tolerance. |
Use Scenario: Biasing base-emitter junctions of discrete PNP transistors in linear regulator pass elements. IC Role / Device Role / Timing Role: Functions as temperature-compensated voltage source to establish stable base drive voltage independent of supply ripple. Use Value: Positive temperature coefficient (+7.0 to +11.0 mV/K) counterbalances transistor VBE drift, improving thermal stability of bias current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5243B | 13 V nominal, ±5 %, SOD-123, but rated at 350 mW Ptot (vs. 590 mW) | Limited to lower-power bias networks; unsuitable for sustained 10 mA regulation loads | Select when board space matches and thermal margin is sufficient; verify derating above 70 °C ambient |
| Vishay BZX84-C13 | 13 V nominal, ±5 %, SOT-23 package - smaller footprint but higher thermal resistance (350 K/W vs. 210 K/W) | Higher self-heating under same load; requires tighter layout control for thermal management | Prefer for ultra-compact designs where 0.6 mm² area saving outweighs thermal derating penalty |
Compared with MMBZ5243B and BZX84-C13, BZT52-C13X offers superior power handling and thermal performance in SOD123, making it optimal for industrial applications requiring sustained 13 V regulation at >5 mA with minimal board-level copper.
Availability
BZT52-C13X is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller I/O protection, and analog reference circuits requiring stable component supply and long-term obsolescence management.
Supply support for BZT52-C13X 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 essential semiconductors - including logic, discretes, MOSFETs, and bipolar devices - serving automotive, industrial, and consumer markets.
The BZT52 series targets cost-sensitive, high-volume general-purpose voltage regulation and protection, emphasizing manufacturability, SMD compatibility, and broad voltage coverage (2.4–75 V) in standardized packages.
FAQ
What is the Zener voltage tolerance and test condition for BZT52-C13X?
The BZT52-C13X has a ±5 % Zener voltage tolerance, specified at a test current of 5 mA and junction temperature of 25 °C. The actual measured VZ falls between 12.4 V and 14.1 V under those conditions, as confirmed in Table 8 of the Nexperia datasheet Rev. 2.
Can BZT52-C13X be used in place of a 12 V Zener diode?
No - BZT52-C13X is specifically rated for 13 V nominal Zener voltage. Substituting it for a 12 V part introduces a 1 V systematic offset, which may violate regulation thresholds in feedback loops or protection circuits. Use BZT52-C12X (12 V) or BZT52-C15X (15 V) for adjacent values.
What is the maximum continuous reverse current it can handle?
The maximum continuous reverse (Zener) current is derived from Ptot = 590 mW and VZ ≈ 13 V, yielding ~45 mA maximum steady-state IZ. However, the Absolute Maximum Rating for forward current is 250 mA - not applicable in Zener mode. Sustained operation above 20 mA requires thermal derating per Rth(j-a) = 350 K/W.
Is BZT52-C13X qualified for automotive applications?
No - per Section 13 of the datasheet, BZT52-C13X is non-automotive qualified. Nexperia explicitly states that C-series parts "changed to non-automotive qualification" in Rev. 2. For automotive use, select the -Q qualified variants (e.g., BZT52-C13X-Q) or consult Nexperia's automotive portfolio.
BZT52-C13X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13.25 V
- Tolerance:
- ±6.4%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C13X FAQ
1.How can I place an order for BZT52-C13X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C13X 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 BZT52-C13X reliable?
The price and inventory of BZT52-C13X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C13X is usually 5 days.
3.What payment methods are accepted for BZT52-C13X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C13X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C13X?
BZT52-C13X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C13X 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 BZT52-C13X?
For technical support, including BZT52-C13X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C13X requirements.
6.How does Aetrix verify that BZT52-C13X is sourced from the original manufacturer or authorized distributors?
All BZT52-C13X 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 BZT52-C13X meets industry standards.
7.What is the process for return or replacement of BZT52-C13X?
All BZT52-C13X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C13X, 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 BZT52-C13X part is unused and in its original packaging.
Return procedure for BZT52-C13X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C13X Tags
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MM5Z5V1ST1G
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