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Diodes Incorporated BZT52C5V1TQ-7-F
- Part No.:
- BZT52C5V1TQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C5V1TQ-7-F.pdf
- Description:
- DIODE ZENER 5.1V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,711
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Product details
Overview
BZT52C5V1TQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 5.1 V zener voltage, 5 mA test current, 60 Ω maximum zener impedance at 1 kHz, 2.0 µA maximum reverse leakage at 2.0 V, and ±2.7 mV/°C temperature coefficient. It operates from −55 °C to +150 °C and dissipates up to 300 mW in SOD523 package, used for precision voltage reference and overvoltage protection in automotive power rails.
For engineers reviewing the BZT52C5V1TQ-7-F datasheet, BZT52C5V1TQ-7-F pinout, BZT52C5V1TQ-7-F application, or BZT52C5V1TQ-7-F equivalent, key selection criteria include zener voltage tolerance (±5.9% at 5.1 V), thermal resistance (417 °C/W junction-to-ambient), low-profile SOD523 footprint compatibility, and AEC-Q200 readiness via Q-suffix qualification path.
Technical Context
This Zener diode functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across load and line variations. Its 5.1 V nominal breakdown is specified at 5 mA test current with tight 4.8–5.4 V range and low dynamic impedance (≤60 Ω), enabling accurate clamping in low-power analog circuits.
The device uses alloy-42 leadframe with matte tin annealed terminals, rated for 300 mW power dissipation on FR-4 board with 2 oz copper, and exhibits predictable thermal drift (−2.7 to +0 mV/°C) over −55 °C to +150 °C operating range - critical for under-hood automotive sensor biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V nominal, 4.8–5.4 V min/max at 5 mA - ensures ±5.9% regulation accuracy for 5 V rail monitoring |
| Power Dissipation (PD) | 300 mW - supports continuous operation in compact SOD523 layout without forced cooling |
| Zener Impedance (ZZT) | ≤60 Ω at 1 kHz - minimizes output voltage variation under dynamic load transients |
| Reverse Leakage (IR) | ≤2.0 µA at VR = 2.0 V - enables low-quiescent-current bias networks in battery-powered systems |
| Temperature Coefficient | −2.7 to +0 mV/°C - provides predictable drift compensation in wide-temperature industrial sensors |
| Package | SOD523 - 1.25 mm × 0.85 mm footprint with 0.17 mm max height, compatible with high-density PCB assembly |
| Operating Temperature | −55 °C to +150 °C - qualified for under-dash and engine compartment automotive environments |
Pinout & Package
Two-terminal device in SOD523 package: cathode marked by band on top surface; anode and cathode terminals are co-planar, flat-lead design optimized for low profile and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-bias voltage reference node | Connected to regulated output or clamp point; polarity must be observed to avoid forward conduction |
| Anode | Reference ground return path | Tied to system ground or lower-potential rail; completes bias current loop during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD523 package | 1.25 mm × 0.85 mm × 0.65 mm max height - fits beneath connectors and shields in space-constrained modules |
| High-reliability construction | Qualified to JEDEC standards per AEC-Q200 requirements - suitable for PPAP-capable automotive production |
| Green molding compound | UL 94V-0 rated, halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets automotive RoHS 3 and ELV compliance |
| Stable thermal performance | RθJA = 417 °C/W on FR-4 - enables predictable derating curves for ambient temperatures up to 125 °C |
Applications
| Automotive Power Rail Protection | Industrial Sensor Biasing |
|---|---|
Use Scenario: Clamping transient spikes on 5 V microcontroller supply lines in body control modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage protector, diverting surge current above 5.4 V threshold. Use Value: Prevents MCU brownout or latch-up during load dump events while consuming <2 µA quiescent current at nominal 5 V. | Use Scenario: Providing stable reference voltage for RTD or thermistor signal conditioning circuits. IC Role / Device Role / Timing Role: Precision voltage reference source with low tempco (−2.7 mV/°C) for analog front-end biasing. Use Value: Enables <±0.5% measurement accuracy over −40 °C to +125 °C without active regulation. |
| USB Port ESD Clamp | Low-Power IoT Node Regulation |
Use Scenario: Secondary-level ESD protection on USB VBUS line in portable diagnostic tools. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting voltage to 5.4 V during IEC 61000-4-2 contact discharge. Use Value: Complements TVS diodes with tighter voltage tolerance and lower leakage than standard 5.6 V Zeners. | Use Scenario: Regulating supply to ultra-low-power BLE SoC in battery-operated asset trackers. IC Role / Device Role / Timing Role: Passive voltage regulator replacing LDO where 300 mW dissipation and ±5.9% tolerance are acceptable. Use Value: Reduces BOM count and quiescent current vs. active regulators, extending coin-cell life by >15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5231B-7-F | Same 5.1 V nominal, but SOD123 package (2.7 × 1.6 mm); higher PD = 500 mW; ZZT = 17 Ω | Preferred where board space allows larger footprint and higher power margin is needed | Select when thermal headroom >300 mW is required and SOD123 placement is feasible |
| BZX584C5V1 | SOD523 package, same 5.1 V rating, but tighter 4.95–5.25 V tolerance (±3%) and lower ZZT = 40 Ω | Better suited for high-precision references where ±3% VZ and lower impedance are mandatory | Choose when tighter voltage tolerance and lower dynamic impedance outweigh cost and availability trade-offs |
Compared with MMSZ5231B-7-F and BZX584C5V1, BZT52C5V1TQ-7-F offers optimal balance of ultra-compact SOD523 size, AEC-Q200-ready qualification path, and cost-effective 5.1 V regulation - ideal for space-constrained automotive and industrial modules where ±5.9% tolerance is acceptable.
Availability
BZT52C5V1TQ-7-F is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor biasing, USB port ESD clamping, and low-power IoT node regulation requiring stable component supply across extended temperature ranges.
Supply support for BZT52C5V1TQ-7-F 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 BZT52 series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for voltage regulation and transient suppression in harsh-environment applications including engine control units, ADAS sensors, and infotainment power supplies.
FAQ
What is the maximum reverse leakage current for BZT52C5V1TQ-7-F at 2.0 V?
The maximum reverse leakage current is 2.0 µA at VR = 2.0 V and TA = +25 °C, per the Electrical Characteristics table in DS30502 Rev. 18-2. This value remains ≤5.0 µA across the full −55 °C to +150 °C operating range, verified by Fig. 5 reverse characteristics curves.
Is BZT52C5V1TQ-7-F qualified to AEC-Q200?
No - the "Q" suffix indicates automotive-grade change control capability and manufacturing in IATF 16949-certified facilities, but formal AEC-Q200 qualification requires separate PPAP documentation. The part is built to JEDEC reliability standards referenced in AEC-Q and supports AEC-Q200-compliant programs when paired with appropriate process controls.
Can BZT52C5V1TQ-7-F replace a 5.6 V Zener in a 5 V rail clamp circuit?
No - its 4.8–5.4 V zener voltage range is incompatible with 5.6 V designs. Using it would cause premature conduction below nominal rail voltage, risking false triggering and excessive standby current. For 5.6 V applications, BZT52C5V6TQ-7-F (5.2–6.0 V) is the correct variant.
What is the thermal resistance junction-to-ambient for BZT52C5V1TQ-7-F on standard FR-4?
RθJA is 417 °C/W when mounted on FR-4 board with single-sided 2 oz copper and 1.92 mm² pad area, as defined in Note 6 of DS30502. Derating begins above +25 °C ambient per Fig. 1, reaching 150 mW at +100 °C ambient.
BZT52C5V1TQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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-523
BZT52C5V1TQ-7-F FAQ
1.How can I place an order for BZT52C5V1TQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C5V1TQ-7-F 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 BZT52C5V1TQ-7-F reliable?
The price and inventory of BZT52C5V1TQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C5V1TQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C5V1TQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C5V1TQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C5V1TQ-7-F?
BZT52C5V1TQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C5V1TQ-7-F 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 BZT52C5V1TQ-7-F?
For technical support, including BZT52C5V1TQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C5V1TQ-7-F requirements.
6.How does Aetrix verify that BZT52C5V1TQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C5V1TQ-7-F 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 BZT52C5V1TQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C5V1TQ-7-F?
All BZT52C5V1TQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C5V1TQ-7-F, 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 BZT52C5V1TQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C5V1TQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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