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Nexperia USA Inc. BZT52-C7V5J
- Part No.:
- BZT52-C7V5J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C7V5J.pdf
- Description:
- DIODE ZENER 7.45V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,876
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Product details
Overview
BZT52-C7V5J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 7.5 V nominal regulation at 5 mA, with 80 Ω max differential resistance and 1 μA reverse current at 5.6 V, used for low-power voltage reference and overvoltage protection in consumer power rails.
For engineers reviewing the BZT52-C7V5J datasheet, BZT52-C7V5J pinout, BZT52-C7V5J application, or BZT52-C7V5J equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, thermal resistance data, and direct substitution guidance for precision biasing and clamp circuits.
Technical Context
This Zener operates in reverse breakdown mode with a specified 7.0 V to 7.9 V working voltage range at IZ = 5 mA, exhibiting a positive temperature coefficient of +2.5 mV/K to +5.3 mV/K across its operating current range. Its low 80 Ω differential resistance ensures stable regulation under small-signal load variations.
The device is characterized for Tj = 25 °C, with thermal resistance from junction to ambient (Rth(j-a)) at 350 K/W on FR4 PCB and 55 K/W to solder point, enabling accurate derating in compact layouts. Non-repetitive peak reverse power dissipation reaches 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.0 V to 7.9 V at IZ = 5 mA - defines regulation band for stable reference generation |
| Differential Resistance rdif | ≤ 80 Ω - limits output voltage variation under ±1 mA load current change |
| Reverse Current IR | ≤ 1 μA at VR = 5.6 V - ensures minimal leakage in standby clamp configurations |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - supports low-loss anode-side biasing in series regulator topologies |
| Total Power Dissipation Ptot | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 |
| Junction Temperature Tj | −55 °C to +150 °C - enables operation in industrial ambient environments without active cooling |
Pinout & Package
SOD123 surface-mount plastic package: 2-terminal, flat lead, cathode-marked with bar; dimensions 3.75 mm × 1.7 mm × 1.3 mm (L × W × H), 1 cm² cathode pad recommended for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-optimized selection where tight regulation is not required, e.g., non-critical supply monitoring |
| Low 80 Ω differential resistance | Reduces output voltage drift to < ±80 mV per ±1 mA load shift, improving reference stability |
| 150 °C max junction temperature | Supports placement near heat sources in space-constrained power modules without derating penalties |
| 350 mW pulse-rated power | Allows transient overvoltage clamping up to 350 mW for >10 ms durations on standard PCB layout |
Applications
| USB Port Overvoltage Clamp | Microcontroller Reset Circuit Reference |
|---|---|
|
Use Scenario: Clamps USB VBUS transients above 5.5 V to protect downstream PHY ICs. IC Role / Device Role / Timing Role: Zener acts as shunt overvoltage protector, conducting only when VBUS exceeds 7.5 V threshold. Use Value: Limits peak voltage to 7.9 V with <1 μA leakage below 5.6 V, preserving signal integrity during normal operation. |
Use Scenario: Provides stable 7.5 V reference for RC-based reset timing in 3.3 V microcontrollers. IC Role / Device Role / Timing Role: Functions as precision voltage threshold element in reset supervisor circuitry. Use Value: Delivers ±5 % accuracy and <80 Ω dynamic impedance to ensure consistent reset delay across temperature. |
| Industrial Sensor Bias Supply | LED Driver Current Sense Clamp |
|
Use Scenario: Generates stable bias voltage for analog sensor front-ends in 24 V industrial systems. IC Role / Device Role / Timing Role: Zener supplies regulated excitation voltage to bridge sensors or op-amp references. Use Value: Maintains 7.0–7.9 V output with <1 μA IR at 5.6 V, minimizing quiescent current in battery-backed nodes. |
Use Scenario: Limits gate drive voltage to protect MOSFETs in constant-current LED drivers. IC Role / Device Role / Timing Role: Shunt clamp prevents gate overvoltage during PWM switching transitions. Use Value: Responds within nanoseconds to transients, with 40 W non-repetitive surge capability at 100 μs pulse width. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5227BLT1G | 7.5 V nominal, ±5 %, 100 Ω max rdif, SOD-123 package | Higher differential resistance reduces regulation precision in low-noise references | Select when legacy ON Semi BOM alignment is required; verify rdif impact on load regulation error |
| Vishay BZX84-C7V5 | 7.5 V nominal, ±5 %, 80 Ω max rdif, SOT-23 package | SOT-23 footprint requires PCB redesign; same electrical specs but higher thermal resistance (400 K/W) | Choose only if SOT-23 is mandated; expect 15 % higher junction temperature rise at full power |
Compared with BZT52-C7V5J, MMBZ5227BLT1G trades regulation precision for broader vendor availability, while BZX84-C7V5 maintains identical Zener specs but sacrifices thermal performance due to smaller package thermal mass and higher Rth(j-a).
Availability
BZT52-C7V5J is available at Aetrix Electronics and suitable for USB protection, microcontroller reset circuits, industrial sensor biasing, and LED driver clamping requiring stable component supply across high-volume production runs.
Supply support for BZT52-C7V5J 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZT52 series targets general-purpose voltage regulation and protection in cost-sensitive, space-constrained applications-designed for robustness in consumer, computing, and industrial power management subsystems.
FAQ
What is the maximum continuous reverse current the BZT52-C7V5J can handle?
The BZT52-C7V5J is rated for a maximum continuous reverse current of 250 mA, derived from its 590 mW total power dissipation limit and minimum Zener voltage of 7.0 V (P = V × I → I = 590 mW / 7.0 V ≈ 84 mA). However, the Absolute Maximum Rating specifies IF = 250 mA forward, while reverse conduction is governed by power and thermal limits-not a fixed current rating. Safe continuous Zener current depends on ambient temperature and PCB thermal design.
Does the BZT52-C7V5J meet automotive qualification standards?
No, the BZT52-C7V5J is explicitly designated as non-automotive qualified per Nexperia's revision history (v.2, October 2025), which states that C-selection parts have changed to non-automotive qualification. For automotive use, Nexperia offers separate -Q qualified variants such as BZT52-C7V5-Q, which undergo AEC-Q101 stress testing and include extended temperature screening.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
The BZT52-C7V5J exhibits a temperature coefficient of +2.5 mV/K to +5.3 mV/K at IZ = 5 mA. Over a 165 °C range, this introduces a worst-case Zener voltage shift of +0.41 V to +0.87 V-translating to ±5.5 % to ±11.6 % deviation from nominal 7.5 V. Designers must account for this drift in precision references; tighter regulation requires compensation or selection of lower-TC alternatives.
Can the BZT52-C7V5J be used in parallel for higher power handling?
No-Zener diodes should not be paralleled without individual ballast resistors due to mismatched breakdown voltages. Even within the same batch, VZ tolerance (±5 %) and temperature coefficient variation cause current hogging, leading to thermal runaway. For higher power, select a single higher-rated Zener (e.g., BZT52-C7V5 in TO-236 or use a dedicated voltage reference IC).
BZT52-C7V5J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.45 V
- Tolerance:
- ±6%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C7V5J FAQ
1.How can I place an order for BZT52-C7V5J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C7V5J 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 BZT52-C7V5J reliable?
The price and inventory of BZT52-C7V5J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C7V5J is usually 5 days.
3.What payment methods are accepted for BZT52-C7V5J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C7V5J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C7V5J?
BZT52-C7V5J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C7V5J 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 BZT52-C7V5J?
For technical support, including BZT52-C7V5J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C7V5J requirements.
6.How does Aetrix verify that BZT52-C7V5J is sourced from the original manufacturer or authorized distributors?
All BZT52-C7V5J 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 BZT52-C7V5J meets industry standards.
7.What is the process for return or replacement of BZT52-C7V5J?
All BZT52-C7V5J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C7V5J, 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 BZT52-C7V5J part is unused and in its original packaging.
Return procedure for BZT52-C7V5J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C7V5J Tags
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