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Nexperia USA Inc. BZT52H-C7V5-QX
- Part No.:
- BZT52H-C7V5-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C7V5-QX.pdf
- Description:
- DIODE ZENER 7.45V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
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Product details
Overview
BZT52H-C7V5-QX from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 7.5 V nominal breakdown voltage at 5 mA, 830 mW total power dissipation, and qualified to AEC-Q101 for automotive voltage regulation and reference applications.
For engineers reviewing the BZT52H-C7V5-QX datasheet, BZT52H-C7V5-QX pinout, BZT52H-C7V5-QX application, or BZT52H-C7V5-QX equivalent, this page delivers verified Zener parameters, thermal resistance values, differential resistance, temperature coefficient, reverse current limits, and automotive-grade reliability context - all confirmed from Nexperia's official product data sheet Rev. 1 (October 2021).
Technical Context
This device operates as a precision voltage reference diode with a nominal Zener voltage of 7.5 V at IZ = 5 mA, exhibiting a temperature coefficient of +2.5 to +5.3 mV/K and differential resistance ≤80 Ω. Its reverse current remains ≤10 μA at VR = 5.6 V (75 % of VZ), supporting stable biasing in low-power analog circuits.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it achieves Rth(j-a) = 330 K/W (free air) and Rth(j-sp) = 70 K/W (cathode solder point), enabling reliable thermal performance in space-constrained automotive modules where ambient temperatures range from −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V to 7.9 V at IZ = 5 mA - defines regulated output voltage window under standard test conditions |
| Tolerance | ±5 % - specifies maximum deviation from nominal 7.5 V, critical for reference accuracy in feedback loops |
| Differential Resistance (rdif) | ≤80 Ω - determines output impedance and load regulation sensitivity in shunt regulator configurations |
| Reverse Current (IR) | ≤10 μA at VR = 5.6 V - ensures minimal leakage before breakdown, preserving efficiency in standby modes |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB with 1 cm² cathode pad |
| Temperature Coefficient (SZ) | +2.5 to +5.3 mV/K - quantifies VZ drift per degree Celsius, essential for thermal stability in engine control units |
| Junction Temperature (Tj) | −65 °C to +150 °C - confirms operational viability across full automotive under-hood thermal envelope |
Pinout & Package
SOD123F plastic surface-mount package: 2-terminal, flat lead, small outline; dimensions 3.4–3.6 mm × 2.5–2.7 mm × 1.0–1.2 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker (bar) identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical stress per discrete semiconductor standard |
| Three tolerance options | ±1 %, ±2 %, and ±5 % series - enables cost/performance trade-off selection without redesigning PCB layout |
| Low thermal resistance to solder point | Rth(j-sp) = 70 K/W - improves heat transfer from junction to PCB, supporting higher sustained power in compact modules |
| Wide Zener voltage range | 2.4 V to 75 V (E24 series) - allows single-package-family reuse across multiple voltage rails in vehicle ECUs and body controllers |
| Pulse surge capability | IZSM = 4.0 A (tp = 100 μs) - withstands transient overvoltage events common in 12 V automotive electrical systems |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Reference |
|---|---|
Use Scenario: Provides stable 7.5 V reference for microcontroller ADC input scaling and sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Shunt voltage reference diode maintaining precise bias point for analog front-end circuitry. Use Value: Enables consistent 12-bit ADC readings across −40 °C to +125 °C ambient, meeting ASIL-B functional safety requirements. |
Use Scenario: Supplies regulated voltage to op-amp comparators monitoring throttle position sensor output. IC Role / Device Role / Timing Role: Precision Zener reference ensuring comparator trip-point accuracy despite battery voltage fluctuations. Use Value: Reduces false throttle fault detection by limiting reference drift to <±15 mV over full operating temperature range. |
| Infotainment System Power Sequencing | ADAS Camera Module Bias Supply |
Use Scenario: Generates clean 7.5 V rail for sequencing logic in multi-rail PMIC startup sequences. IC Role / Device Role / Timing Role: Low-leakage Zener clamping element stabilizing enable signal thresholds during cold-cranking events. Use Value: Prevents premature IC activation when battery dips to 6 V, improving system robustness during engine start. |
Use Scenario: Supplies bias voltage to image sensor analog supply domain in rear-view camera modules. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference minimizing dark current variation in CMOS image sensors. Use Value: Maintains <1.2 % gain error in sensor output across −40 °C to +105 °C, reducing post-processing calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B7V5-Q | ±2 % tolerance, 75 % tighter VZ spread (7.35 V–7.65 V), lower rdif (≤60 Ω) | Better regulation accuracy required in high-precision sensor interfaces | Select when reference stability <±0.15 V is mandatory and cost premium is acceptable |
| MMBZ5227BS-7-F | ±5 % tolerance, same 7.5 V nominal, but SOT-23 package and higher rdif (≤100 Ω) | Legacy board designs using SOT-23 footprint; lower thermal performance (Rth(j-a) = 400 K/W) | Choose only for footprint compatibility; avoid in thermally constrained or AEC-Q101-mandated designs |
Compared with BZT52H-C7V5-QX, the BZT52H-B7V5-Q offers tighter regulation at higher cost, while MMBZ5227BS-7-F sacrifices thermal and automotive qualification for legacy package compatibility - making the C-grade part optimal for cost-sensitive, AEC-compliant shunt regulation where ±5 % tolerance suffices.
Availability
BZT52H-C7V5-QX is available at Aetrix Electronics and suitable for automotive body control modules, engine management systems, infotainment power sequencing, and ADAS camera bias supplies requiring stable component supply with AEC-Q101 compliance and traceable sourcing.
Supply support for BZT52H-C7V5-QX 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 components and energy-efficient solutions.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for voltage regulation, reference, and protection functions in harsh automotive environments - emphasizing thermal robustness, long-term stability, and manufacturing consistency.
FAQ
What is the maximum continuous reverse power dissipation for BZT52H-C7V5-QX at 85 °C ambient?
At Tamb = 85 °C, derated power dissipation is 581 mW, calculated using the 830 mW rating at 25 °C and thermal resistance Rth(j-a) = 330 K/W. This ensures junction temperature stays below 150 °C under steady-state operation on standard FR4 PCBs.
How does the ±5 % tolerance affect circuit design compared to ±1 % variants?
The ±5 % tolerance (7.0–7.9 V) requires wider design margins in feedback networks and ADC reference paths. It is appropriate for non-critical biasing and clamping, whereas ±1 % variants (e.g., BZT52H-A7V5-Q) are reserved for precision references where absolute voltage accuracy directly impacts measurement fidelity.
Can BZT52H-C7V5-QX be used in parallel for higher current handling?
No - Zener diodes exhibit negative temperature coefficients at low voltages and positive above ~5.6 V, but inherent parameter spread prevents balanced current sharing. Parallel connection risks thermal runaway; use a single higher-power device or active regulation instead.
Is the SOD123F package compatible with standard reflow profiles for lead-free soldering?
Yes - Nexperia specifies reflow soldering as the only recommended method, with peak temperature up to 260 °C and time above liquidus ≤60 seconds. The SOD123F footprint in Figure 12 supports IPC-7351-compliant land patterns for reliable joint formation without tombstoning.
BZT52H-C7V5-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H-Q
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.45 V
- Tolerance:
- ±6.04%
- 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:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-C7V5-QX FAQ
1.How can I place an order for BZT52H-C7V5-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C7V5-QX 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 BZT52H-C7V5-QX reliable?
The price and inventory of BZT52H-C7V5-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C7V5-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C7V5-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C7V5-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C7V5-QX?
BZT52H-C7V5-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C7V5-QX 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 BZT52H-C7V5-QX?
For technical support, including BZT52H-C7V5-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C7V5-QX requirements.
6.How does Aetrix verify that BZT52H-C7V5-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C7V5-QX 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 BZT52H-C7V5-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C7V5-QX?
All BZT52H-C7V5-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C7V5-QX, 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 BZT52H-C7V5-QX part is unused and in its original packaging.
Return procedure for BZT52H-C7V5-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-C7V5-QX Tags
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