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Diodes Incorporated BZT52HC13WF-7
- Part No.:
- BZT52HC13WF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52HC13WF-7.pdf
- Description:
- DIODE ZENER 13V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,912
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Product details
Overview
BZT52HC13WF-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 13 V (12.4–14.1 V range), 5 mA test current, and 10 Ω maximum zener impedance at IZT. It features SOD123F (Type B) package, AEC-Q101 qualification for automotive reliability, and operates across −65 °C to +150 °C. Used for precision voltage regulation in low-power sensor biasing and power rail clamping.
For engineers reviewing the BZT52HC13WF-7 datasheet, BZT52HC13WF-7 pinout, BZT52HC13WF-7 application, or BZT52HC13WF-7 equivalent, key selection factors include its 13 V zener tolerance, 110 Ω dynamic impedance at knee current, temperature coefficient of +7.0 to +11.0 mV/°C, and 80 pF capacitance at 1 MHz - critical for noise-sensitive analog reference circuits.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its positive temperature coefficient (+7.0 to +11.0 mV/°C) enables predictable drift compensation in series-reference designs, and its 1 mA knee current (IZK) supports low-current regulation down to microamp-level standby modes.
The device delivers 375 mW power dissipation on standard FR-4 PCBs and up to 830 mW with enhanced cathode pad area (1 cm²), supported by thermal resistance of 150 °C/W in optimized layout. Reverse leakage remains ≤0.1 µA at 10.4 V, ensuring minimal quiescent current in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 12.4 V to 14.1 V at 5 mA - defines regulation window for 13 V nominal rail stabilization |
| Zener Impedance | 10 Ω max at 5 mA - ensures low output impedance for stable voltage under small-signal load variation |
| Knee Impedance | 110 Ω at 1 mA - indicates usable regulation onset for ultra-low-power biasing applications |
| Temperature Coefficient | +7.0 to +11.0 mV/°C - enables predictable voltage drift tracking for temperature-compensated references |
| Capacitance | 80 pF max at 1 MHz, 0 V - limits high-frequency coupling in signal-path protection and filtering |
| Reverse Leakage | ≤0.1 µA at 10.4 V - minimizes standby current in always-on monitoring circuits |
| Power Dissipation | 830 mW with 1 cm² cathode pad - supports higher continuous regulation in thermally constrained layouts |
Pinout & Package
Package: SOD123F (Type B), flat-lead surface-mount plastic case with cathode band marking; weight ≈0.015 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias configuration; determines polarity of clamping action |
| Cathode | Zener breakdown terminal / regulated output node | Marked with band; supplies stabilized voltage when reverse-biased above VZ; requires proper PCB thermal pad for 830 mW rating |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| SOD123F low-profile package | 1.8 mm height enables use in space-constrained modules like automotive ECUs and portable sensors |
| Halogen- and antimony-free "Green" construction | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - compliant with global environmental directives |
| Matte tin annealed terminals | Ensures consistent solderability per MIL-STD-202 Method 208, even after extended storage |
Applications
| Automotive Sensor Biasing | Industrial Analog Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric measurement front-ends. Use Value: Tight 12.4–14.1 V tolerance and +7.0 to +11.0 mV/°C TC enable direct compensation against ambient temperature drift. |
Use Scenario: Generating fixed reference for 12-bit ADCs in programmable logic controllers. IC Role / Device Role / Timing Role: Low-noise, low-capacitance shunt reference in isolated signal conditioning stages. Use Value: 80 pF capacitance and ≤0.1 µA leakage preserve signal integrity and minimize offset error in high-impedance input paths. |
| USB Port Overvoltage Protection | Low-Power Microcontroller Reset Circuit |
Use Scenario: Clamping transient surges on 5 V USB VBUS lines during hot-plug events. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting voltage excursion above safe threshold. Use Value: 10 Ω dynamic impedance ensures rapid voltage stabilization during 100 ns–1 µs transients without latch-up risk. |
Use Scenario: Holding reset line low until regulated 3.3 V rail reaches valid level in battery-backed IoT nodes. IC Role / Device Role / Timing Role: Threshold-detecting element in discrete reset supervisor circuitry. Use Value: Predictable 13 V breakdown with 1 mA knee current allows precise timing via RC delay networks with minimal component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5242B-7-F (Diodes Inc.) | Same 13 V nominal, but SOD-123 package (not SOD123F); 15 Ω ZZT, no AEC-Q101 qualification | Lacks automotive qualification; higher impedance reduces regulation accuracy under load variation | Select when cost sensitivity outweighs AEC-Q101 requirement and thermal performance is secondary |
| BZX84-C13 (Nexperia) | SOT-23 package; 12–14.4 V range; 30 Ω ZZT; AEC-Q101 qualified; 250 mW PD | Higher package profile and lower power rating limit use in high-density or high-dissipation layouts | Prefer where board space permits SOT-23 and system-level thermal margin exceeds 375 mW |
Compared with MMSZ5242B-7-F and BZX84-C13, BZT52HC13WF-7 offers superior thermal performance (830 mW with pad), tighter impedance (10 Ω), and identical AEC-Q101 compliance - making it optimal for automotive and industrial applications demanding both reliability and power handling.
Availability
BZT52HC13WF-7 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog reference generation, USB overvoltage protection, and low-power microcontroller reset circuits requiring stable component supply and long-term lifecycle continuity.
Supply support for BZT52HC13WF-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, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BZT52HC series targets automotive-grade Zener regulation, designed specifically for AEC-Q101 compliance, low-profile packaging, and stable voltage reference in harsh-temperature environments.
FAQ
What is the maximum power dissipation of BZT52HC13WF-7 under standard PCB conditions?
BZT52HC13WF-7 dissipates up to 375 mW when mounted on an FR-4 PCB using Diodes Incorporated's minimum recommended pad layout. This rating assumes natural convection cooling and accounts for thermal resistance of 330 °C/W junction-to-ambient. Derating begins linearly above +25 °C ambient.
Does BZT52HC13WF-7 have a defined polarity marking, and how is it identified?
Yes - polarity is indicated by a cathode band printed on the device body, aligned with the cathode terminal. In the SOD123F package, the band corresponds to the terminal on the same side as the shorter leadframe extension. This marking is visible under 10× magnification and matches the polarity symbol in the official package outline drawing.
Can BZT52HC13WF-7 be used in place of older BZT52C13 models?
No - BZT52HC13WF-7 is not a drop-in replacement for legacy BZT52C13. It uses the newer SOD123F package (vs. SOD-123), has tighter zener tolerance (±7.7% vs. ±10%), lower impedance (10 Ω vs. ~20 Ω), and full AEC-Q101 qualification. Layout and thermal design must be updated to match the SOD123F footprint and enhanced power capability.
What is the significance of the "WF" suffix in BZT52HC13WF-7?
The "WF" suffix denotes Diodes Incorporated's "Green" halogen- and antimony-free construction, meeting strict environmental standards (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb). It also indicates matte tin annealed terminations for guaranteed solderability and RoHS compliance per EU Directive 2011/65/EU.
BZT52HC13WF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6.54%
- Power - Max:
- 375 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:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52HC13WF-7 FAQ
1.How can I place an order for BZT52HC13WF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52HC13WF-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 BZT52HC13WF-7 reliable?
The price and inventory of BZT52HC13WF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52HC13WF-7 is usually 5 days.
3.What payment methods are accepted for BZT52HC13WF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52HC13WF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52HC13WF-7?
BZT52HC13WF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52HC13WF-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 BZT52HC13WF-7?
For technical support, including BZT52HC13WF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52HC13WF-7 requirements.
6.How does Aetrix verify that BZT52HC13WF-7 is sourced from the original manufacturer or authorized distributors?
All BZT52HC13WF-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 BZT52HC13WF-7 meets industry standards.
7.What is the process for return or replacement of BZT52HC13WF-7?
All BZT52HC13WF-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52HC13WF-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 BZT52HC13WF-7 part is unused and in its original packaging.
Return procedure for BZT52HC13WF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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