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Diodes Incorporated BZT52C5V1T-7
- Part No.:
- BZT52C5V1T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C5V1T-7.pdf
- Description:
- DIODE ZENER 5.1V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:22,352
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Product details
Overview
BZT52C5V1T-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 5.1 V, ±5% tolerance (4.8–5.4 V), 5 mA test current, 60 Ω dynamic impedance at 1 kHz, and 300 mW power dissipation in SOD523 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for consumer power supplies and sensor signal conditioning.
For engineers reviewing the BZT52C5V1T-7 datasheet, BZT52C5V1T-7 pinout, BZT52C5V1T-7 application, or BZT52C5V1T-7 equivalent, this page delivers verified electrical specs, thermal derating behavior, cathode-band polarity marking, JEDEC-qualified reliability data, and direct substitution guidance against industry-standard 5.1 V Zeners in SOD523.
Technical Context
This Zener operates in reverse breakdown mode with a temperature coefficient of –2.7 mV/°C, enabling predictable drift compensation in stable reference designs. Its 1.0 µA maximum reverse leakage at 2.0 V ensures minimal quiescent current draw in battery-powered monitoring nodes.
The device is rated for –55°C to +150°C operation, qualified to JEDEC high-reliability standards, and manufactured in IATF 16949-certified facilities-making it suitable for industrial control and automotive body electronics where thermal stability and process traceability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V nominal, 4.8–5.4 V range at 5 mA - defines regulated output level in shunt reference circuits |
| Power Dissipation (PD) | 300 mW at 25°C - sets maximum continuous power handling on standard FR-4 PCB with 2 oz copper |
| Zener Impedance (ZZT) | 60 Ω at 1 kHz, 5 mA - determines regulation accuracy under varying load current |
| Reverse Leakage (IR) | 2.0 µA max at 2.0 V - limits standby current in low-power voltage monitor stages |
| Thermal Resistance (RθJA) | 417 °C/W - quantifies junction-to-ambient self-heating under ambient convection cooling |
| Operating Temperature | –55°C to +150°C - supports deployment in under-hood automotive and industrial motor drive environments |
Pinout & Package
Package: SOD523 - ultra-compact, low-profile surface-mount package with cathode band marking; dimensions: 0.75–0.85 mm (D), 1.15–1.25 mm (E), 0.55–0.65 mm (A); weight ≈ 0.001 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in shunt regulator; forms return path for Zener current |
| Cathode | Reverse-biased breakdown terminal / regulated output node | Marked by band; connected to input rail to clamp voltage at 5.1 V during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-qualified high-reliability construction | Validated per AEC-Q stress protocols - enables use in automotive subsystems without additional qualification |
| Green molding compound (UL 94V-0) | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets RoHS 3 and automotive environmental compliance |
| Low-profile SOD523 footprint | 1.25 mm × 0.85 mm outline - saves board space in compact wearables and IoT sensor modules |
| Matte tin annealed terminals | Solderable per MIL-STD-202, Method 208 - ensures robust reflow joint integrity in high-volume SMT assembly |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Clamping transient surges on USB VBUS lines during hot-plug or ESD events. IC Role / Device Role: Shunt voltage limiter placed between VBUS and GND. Use Value: Limits voltage to ≤5.4 V (max VZ) before damage occurs, with 2.0 µA leakage preserving bus idle state. |
Use Scenario: Providing stable 5.1 V reference for microcontroller reset threshold detection. IC Role / Device Role: Precision voltage reference for external reset IC or internal bandgap comparator. Use Value: –2.7 mV/°C tempco enables predictable reset window shift across –40°C to +125°C operating range. |
| Industrial Sensor Signal Conditioning | Low-Power Battery Monitor |
|
Use Scenario: Biasing op-amp input stages in 4–20 mA transmitter front-ends. IC Role / Device Role: Low-current voltage reference for current-loop scaling resistors. Use Value: 60 Ω ZZT ensures <±10 mV regulation error under 100 µA load variation - critical for 0.1% accuracy loops. |
Use Scenario: Monitoring Li-ion cell voltage via resistive divider with Zener-clamped ADC input. IC Role / Device Role: Input protection and reference clamp for analog front-end. Use Value: 300 mW PD and 417 °C/W RθJA allow safe operation at 85°C ambient with <1 mA average current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | Same 5.1 V nominal, but 100 Ω ZZT and 200 mW PD; SOD-323 package (larger than SOD523) | Higher impedance reduces regulation precision; lower power rating limits surge handling | Prefer when legacy SOD-323 footprint compatibility is required over size or regulation tightness |
| 1SMA5913BT3G | 5.1 V, 1.5 W PD, DO-214AC package; 10 Ω ZZT but 2.5× larger footprint and 10× higher leakage (2.5 µA @ 2 V) | Superior power handling for transient suppression; unsuitable for space-constrained or ultra-low-IQ designs | Choose only when >500 mW clamping energy is needed and board area permits DO-214AC |
Compared with MMBZ5221BS-7-F and 1SMA5913BT3G, BZT52C5V1T-7 uniquely balances ultra-small SOD523 size, 60 Ω regulation impedance, and JEDEC-qualified reliability-making it optimal for miniaturized industrial sensors and automotive body-control modules where footprint, precision, and qualification status are jointly constrained.
Availability
BZT52C5V1T-7 is available at Aetrix Electronics and suitable for USB power protection, microcontroller reset circuits, industrial sensor biasing, and low-power battery monitoring requiring stable component supply and full RoHS 3 compliance.
Supply support for BZT52C5V1T-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and sales operations across Asia, the Americas, and Europe.
BZT52C5V1T-7 belongs to the BZT52C series of surface-mount Zener diodes engineered for precision voltage regulation in space-constrained, thermally demanding applications such as automotive body electronics and portable instrumentation.
FAQ
What is the cathode marking convention for BZT52C5V1T-7?
The cathode is identified by a visible band on the SOD523 package body - consistent with JEDEC standard polarity marking. When viewed from the top with the band on the left, the left pad is cathode and right pad is anode. This orientation matches standard PCB silkscreen conventions for automated optical inspection and pick-and-place alignment.
Does BZT52C5V1T-7 meet AEC-Q200 requirements?
No - BZT52C5V1T-7 is qualified to JEDEC high-reliability standards but is not AEC-Q200 certified. For automotive-grade equivalents, Diodes offers the Q-suffix variants (e.g., BZT52C5V1TQ-7-F), which undergo full AEC-Q200 stress testing and are produced in IATF 16949-certified facilities with PPAP documentation support.
How does thermal derating affect BZT52C5V1T-7's power handling above 25°C?
Per Figure 1 in DS30502, power dissipation linearly derates from 300 mW at 25°C to zero at 150°C, yielding a slope of –2.5 mW/°C. At 100°C ambient, maximum allowable power drops to 112.5 mW - requiring circuit designers to limit Zener current accordingly to avoid junction overheating and parameter drift.
Can BZT52C5V1T-7 be used in place of a 5.0 V Zener diode?
Not without verification: its 5.1 V nominal value (4.8–5.4 V range) exceeds typical 5.0 V Zener tolerances (e.g., 4.75–5.25 V). In precision references or reset circuits with tight thresholds, this 2% offset may cause premature triggering or failure to activate - system-level validation of voltage margin is required before substitution.
BZT52C5V1T-7 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZT52C5V1T-7 FAQ
1.How can I place an order for BZT52C5V1T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C5V1T-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 BZT52C5V1T-7 reliable?
The price and inventory of BZT52C5V1T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C5V1T-7 is usually 5 days.
3.What payment methods are accepted for BZT52C5V1T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C5V1T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C5V1T-7?
BZT52C5V1T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C5V1T-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 BZT52C5V1T-7?
For technical support, including BZT52C5V1T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C5V1T-7 requirements.
6.How does Aetrix verify that BZT52C5V1T-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C5V1T-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 BZT52C5V1T-7 meets industry standards.
7.What is the process for return or replacement of BZT52C5V1T-7?
All BZT52C5V1T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C5V1T-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 BZT52C5V1T-7 part is unused and in its original packaging.
Return procedure for BZT52C5V1T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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