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Diodes Incorporated BZT52HC7V5WF-7
- Part No.:
- BZT52HC7V5WF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52HC7V5WF-7.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,730
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Product details
Overview
BZT52HC7V5WF-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 7.5 V zener voltage (7.0–7.9 V range), 5 mA test current, 10 Ω dynamic impedance at 5 mA, ±5 mV/°C temperature coefficient, and 150 pF capacitance at 1 MHz. It operates in reverse-biased regulation mode for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52HC7V5WF-7 datasheet, BZT52HC7V5WF-7 pinout, BZT52HC7V5WF-7 application, or BZT52HC7V5WF-7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (150 °C/W on 1 cm² cathode pad), AEC-Q101 qualification, SOD123F package footprint, and low leakage (<1 µA at 5 V reverse bias).
Technical Context
This Zener diode uses silicon planar construction with controlled avalanche breakdown to deliver stable reverse-bias voltage regulation. Its −2.5 to +5.3 mV/°C temperature coefficient enables predictable drift compensation across −65 °C to +150 °C operating range.
Designed for low-profile PCB mounting, it achieves 830 mW power dissipation when soldered with a 1 cm² copper pad-double the 375 mW rating on standard FR-4 layout. Cathode-band polarity marking ensures unambiguous orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0–7.9 V at 5 mA - defines regulation window for 7.5 V nominal reference applications |
| Zener Impedance (ZZT) | 10 Ω at 5 mA - ensures minimal output voltage shift under load variation |
| Temperature Coefficient (TC) | +2.5 to +5.3 mV/°C - supports positive-drift compensation in temperature-stable references |
| Capacitance (CT) | 150 pF at 1 MHz, 0 V - limits high-frequency noise coupling in signal-path clamping |
| Max Reverse Current (IR) | 1 µA at 5 V - guarantees low standby leakage in battery-powered sensing nodes |
| Power Dissipation (PD) | 830 mW with 1 cm² cathode pad - enables higher continuous regulation current vs. standard layout |
| Thermal Resistance (RθJA) | 150 °C/W with enhanced pad - reduces junction temperature rise by ~55% vs. 330 °C/W baseline |
Pinout & Package
Package: SOD123F (Type B), flat-lead, green molding compound, UL 94V-0 rated, 0.015 g weight. Cathode identified by band marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential rail; reverse-biased operation requires anode grounded or at lower voltage than cathode |
| Cathode | Zener regulation output / voltage clamp node | Provides regulated 7.5 V output when reverse-biased; marked by visible band; requires thermal pad connection for full 830 mW rating |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified reliability | Validated for automotive electronics per stress-test requirements including HTOL, TCT, and ESD HBM ≥2 kV |
| SOD123F low-profile package | Height ≤0.85 mm enables use in space-constrained modules like sensor transceivers and wearables |
| Halogen- and antimony-free "Green" construction | Br+Cl <1500 ppm, Sb <1000 ppm - meets IPC-1752A Class 2 material declaration requirements |
| Matte tin annealed terminals | Solderable per MIL-STD-202 Method 208 - ensures robust reflow joint integrity in lead-free assembly |
Applications
| Automotive Sensor Reference | Industrial I/O Protection |
|---|---|
Use Scenario: Providing stable 7.5 V reference for analog front-end of engine coolant temperature sensor. IC Role / Device Role / Timing Role: Zener voltage reference source for ADC biasing and signal conditioning circuitry. Use Value: Tight 7.0–7.9 V tolerance and AEC-Q101 qualification ensure accuracy and reliability across −40 °C to +125 °C under hood conditions. |
Use Scenario: Clamping transient surges on 24 V industrial PLC analog input channels. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector limiting input to 7.9 V peak. Use Value: 150 pF capacitance avoids signal distortion at 1 kHz–10 kHz process monitoring bandwidths while handling repetitive 1 kV EFT pulses. |
| Portable Medical Monitor Bias | Smart Meter Power Rail Clamp |
Use Scenario: Generating precise bias voltage for op-amp rails in handheld ECG front-end. IC Role / Device Role / Timing Role: Low-leakage (1 µA @ 5 V) voltage reference enabling microamp-level sleep current. Use Value: Sub-1 µA reverse current preserves battery life in multi-year wearable deployments without compromising regulation stability. |
Use Scenario: Protecting 3.3 V microcontroller supply against 12 V backup rail coupling faults. IC Role / Device Role / Timing Role: Shunt regulator clamping fault energy before LDO input stage. Use Value: 830 mW dissipation capability with thermal pad allows safe absorption of 100 ms overvoltage events without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Same 7.5 V nominal, but ±5% tolerance (7.13–7.88 V); 15 Ω ZZT; SOT-23 package | Higher thermal resistance (270 °C/W) limits power handling; unsuitable for >200 mW sustained loads | Select when board space is constrained and thermal pad area is unavailable; verify layout derating for ambient >85 °C |
| BZX84-C7V5 | 7.5 V nominal, ±5% tolerance; 30 Ω ZZT; SOT-23; no AEC-Q101 qualification | Lacks automotive reliability validation; higher impedance increases regulation error under load | Acceptable for commercial-grade consumer devices where cost is prioritized over long-term stability and surge resilience |
Compared with MMBZ5227BS-7-F and BZX84-C7V5, BZT52HC7V5WF-7 delivers superior thermal performance (150 °C/W), tighter voltage consistency (±0.45 V), and automotive-grade reliability-making it optimal for safety-critical or thermally demanding designs.
Availability
BZT52HC7V5WF-7 is available at Aetrix Electronics and suitable for automotive sensor reference, industrial I/O protection, portable medical monitor bias, and smart meter power rail clamp applications requiring stable component supply, AEC-Q101 compliance, and consistent Zener voltage regulation.
Supply support for BZT52HC7V5WF-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 computing markets.
The BZT52HC series targets precision voltage regulation in space- and power-constrained applications, emphasizing AEC-Q101 qualification, green packaging, and thermal-enhanced SOD123F layout for automotive and industrial end equipment.
FAQ
What is the maximum reverse voltage this Zener can sustain before breakdown?
The BZT52HC7V5WF-7 exhibits sharp, repeatable avalanche breakdown at 7.0–7.9 V when reverse-biased at 5 mA. Below 7.0 V, reverse leakage remains ≤1 µA at 5 V; above 7.9 V, it enters full regulation with <10 Ω dynamic impedance. It is not rated for sustained operation beyond its 830 mW thermal limit.
Does this part support lead-free reflow soldering?
Yes. The device features matte tin-annealed terminals qualified per MIL-STD-202 Method 208 and compatible with standard Pb-free reflow profiles (peak 260 °C, 10 s max). Its SOD123F package withstands JEDEC J-STD-020 Level 1 moisture sensitivity without baking.
How does the temperature coefficient affect regulation accuracy over temperature?
With a +2.5 to +5.3 mV/°C coefficient, the zener voltage increases linearly with junction temperature. At 125 °C (ΔT = +100 °C from 25 °C), VZ rises by 250–530 mV-within the 7.0–7.9 V initial tolerance band. This enables predictable drift modeling in closed-loop compensation circuits.
Can this Zener be used in parallel for higher current handling?
No. Zener diodes exhibit manufacturing spread in VZ, causing current hogging if paralleled. For >250 mA regulation, use a single BZT52HC7V5WF-7 with adequate thermal pad area or pair with an external pass transistor-never direct parallel connection without ballast resistors.
BZT52HC7V5WF-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):
- 7.5 V
- Tolerance:
- ±5.33%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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
BZT52HC7V5WF-7 FAQ
1.How can I place an order for BZT52HC7V5WF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52HC7V5WF-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 BZT52HC7V5WF-7 reliable?
The price and inventory of BZT52HC7V5WF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52HC7V5WF-7 is usually 5 days.
3.What payment methods are accepted for BZT52HC7V5WF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52HC7V5WF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52HC7V5WF-7?
BZT52HC7V5WF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52HC7V5WF-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 BZT52HC7V5WF-7?
For technical support, including BZT52HC7V5WF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52HC7V5WF-7 requirements.
6.How does Aetrix verify that BZT52HC7V5WF-7 is sourced from the original manufacturer or authorized distributors?
All BZT52HC7V5WF-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 BZT52HC7V5WF-7 meets industry standards.
7.What is the process for return or replacement of BZT52HC7V5WF-7?
All BZT52HC7V5WF-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52HC7V5WF-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 BZT52HC7V5WF-7 part is unused and in its original packaging.
Return procedure for BZT52HC7V5WF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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