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Diodes Incorporated BZT52C13S-7
- Part No.:
- BZT52C13S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C13S-7.pdf
- Description:
- DIODE ZENER 13V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,672
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Product details
Overview
BZT52C13S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 13 V zener voltage (12.4–14.1 V range at 5 mA), 200 mW power dissipation, 30 Ω maximum zener impedance at 5 mA, and SOD323 package. It provides precision voltage regulation in low-power biasing, reference, and overvoltage protection circuits for industrial sensors and automotive control modules.
For engineers reviewing the BZT52C13S-7 datasheet, BZT52C13S-7 pinout, BZT52C13S-7 application, or BZT52C13S-7 equivalent, key selection criteria include zener voltage tolerance (±4.6%), temperature coefficient (+7.0 mV/°C), reverse leakage (<0.1 µA at 11 V), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD323 package supports high-density PCB layouts and automated reflow assembly.
The device exhibits a positive temperature coefficient of +7.0 mV/°C above 6 V, enabling predictable drift compensation in reference designs. Thermal resistance of 625 °C/W (junction-to-ambient) requires careful layout derating per Figure 1 - power drops linearly to zero at +150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.0 V nominal, 12.4–14.1 V range at IZT = 5 mA - defines regulation setpoint with ±4.6% tolerance |
| Power Dissipation (PD) | 200 mW at TA = 25 °C - limits continuous current to ~15.4 mA at 13 V without heatsinking |
| Zener Impedance (ZZT) | 30 Ω max at f = 1 kHz, IZT = 5 mA - determines output voltage ripple rejection under dynamic load |
| Reverse Leakage (IR) | <0.1 µA at VR = 11 V - ensures minimal quiescent current in standby bias networks |
| Temperature Coefficient | +7.0 mV/°C - quantifies voltage drift per degree rise; critical for temperature-stable references |
| Package | SOD323 - 1.3 mm × 1.7 mm footprint with cathode band marking; compatible with IPC-7351B standard pads |
| AEC-Q101 Qualified | Yes - validated for automotive applications including engine control units and body electronics |
Pinout & Package
SOD323 package: 2-terminal surface-mount device with molded plastic case (UL 94V-0), matte tin-plated alloy 42 leadframe, cathode indicated by band on top surface. Weight: 0.0049 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit common or lower-potential rail; establishes reference polarity for regulation |
| Cathode | Reverse-biased Zener terminal / regulated output node | Connected to voltage source via current-limiting resistor; delivers stable 13 V to load |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight VZ tolerance and repeatable breakdown characteristics across production lots |
| AEC-Q101 qualification | Validates reliability for automotive environments including thermal cycling, humidity, and vibration stress |
| Lead-free & RoHS-compliant | Fully compliant with EU Directive 2011/65/EU; no intentionally added lead, halogens, or antimony |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to reflow; safe for standard SMT assembly without dry-pack handling |
Applications
| Industrial Sensor Biasing | Automotive ECU Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in factory automation PLCs. IC Role / Device Role / Timing Role: Zener voltage reference for analog front-end bias network. Use Value: Maintains ±0.5% sensor accuracy over –40 to +85 °C due to predictable +7.0 mV/°C TC and low 30 Ω ZZT. |
Use Scenario: Generating precise 13 V reference for microcontroller reset supervisor ICs in engine control units. IC Role / Device Role / Timing Role: Regulation element in power-on reset (POR) threshold circuit. Use Value: Ensures POR activation within 100 ms of 12 V battery rise, leveraging AEC-Q101 qualification and <0.1 µA leakage at 11 V. |
| USB Port Overvoltage Clamp | Low-Power IoT Node Protection |
Use Scenario: Clamping transient surges on USB VBUS lines in industrial docking stations. IC Role / Device Role / Timing Role: Shunt protection device triggered above 14.1 V breakdown threshold. Use Value: Limits VBUS to safe levels during ESD events (IEC 61000-4-2 Level 4) without crowbarring the port. |
Use Scenario: Protecting lithium coin-cell–powered wireless sensor nodes from battery overcharge during charging cycles. IC Role / Device Role / Timing Role: Reverse-biased voltage clamp on battery input rail. Use Value: Prevents >14.1 V damage to 3.3 V MCU and RF transceiver using only 0.0049 g SOD323 footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5243B-7-F | Zener voltage 13 V (12.35–13.65 V), 350 mW PD, 30 Ω ZZT, SOT-23 package | Larger footprint (2.9 × 1.3 mm vs. 1.3 × 1.7 mm); higher power enables higher current regulation | Select when >200 mW dissipation or manual prototyping with larger pitch is required |
| BZX84-C13 | Zener voltage 13 V (12.4–13.7 V), 300 mW PD, 30 Ω ZZT, SOT-23 package, non-AEC-Q101 | Not qualified for automotive use; wider VZ tolerance (±4.8% vs. ±4.6%) | Acceptable for commercial-grade consumer electronics where AEC-Q101 is not mandated |
Compared with MMBZ5243B-7-F and BZX84-C13, BZT52C13S-7 offers the smallest PCB area (SOD323), AEC-Q101 compliance, and identical zener impedance - making it optimal for space-constrained automotive and industrial modules requiring certified reliability.
Availability
BZT52C13S-7 is available at Aetrix Electronics and suitable for industrial sensor biasing, automotive ECU reference generation, and USB port overvoltage protection requiring stable component supply and full traceability.
Supply support for BZT52C13S-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52CxxS series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for automotive and industrial voltage reference and protection applications demanding high reliability and tight parametric control.
FAQ
What is the maximum reverse current specification for BZT52C13S-7 at 11 V?
The maximum reverse leakage current is 0.1 µA at VR = 11 V and TA = 25 °C, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal power loss in battery-powered or high-impedance bias networks where quiescent current must be tightly controlled.
Is BZT52C13S-7 suitable for reflow soldering in lead-free processes?
Yes - the device uses matte tin finish on alloy 42 leadframe and is rated for lead-free reflow per J-STD-020. Its moisture sensitivity level is Level 1, meaning it can be processed directly from dry pack without baking, supporting standard Pb-free peak temperatures up to 260 °C.
How does the +7.0 mV/°C temperature coefficient affect circuit performance?
The positive temperature coefficient means VZ increases by 7.0 mV per °C rise in junction temperature. In precision references, this drift must be compensated - for example, by pairing with a negative-TC component or using it in temperature-insensitive clamping roles where absolute stability is secondary to threshold consistency.
Can BZT52C13S-7 replace BZT52C12S-7 in an existing design?
No - the 13 V and 12 V variants have different zener voltage ranges (12.4–14.1 V vs. 11.4–12.7 V) and temperature coefficients (+7.0 vs. +6.0 mV/°C). Substitution would shift regulation point by ~1 V and alter thermal drift behavior, potentially violating system voltage margin requirements.
BZT52C13S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZT52C13S-7 FAQ
1.How can I place an order for BZT52C13S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C13S-7 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 BZT52C13S-7 reliable?
The price and inventory of BZT52C13S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C13S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C13S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C13S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C13S-7?
BZT52C13S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C13S-7 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 BZT52C13S-7?
For technical support, including BZT52C13S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C13S-7 requirements.
6.How does Aetrix verify that BZT52C13S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C13S-7 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 BZT52C13S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C13S-7?
All BZT52C13S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C13S-7, 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 BZT52C13S-7 part is unused and in its original packaging.
Return procedure for BZT52C13S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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