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Nexperia USA Inc. BZT5250H-C36-QX
- Part No.:
- BZT5250H-C36-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C36-QX.pdf
- Description:
- DIODE ZENER 36V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,692
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Product details
Overview
BZT5250H-C36-Q from Nexperia is a low-current Zener diode in SOD123F package, providing precise 36 V voltage regulation at 50 µA test current, with ±5 % tolerance, 350 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZT5250H-C36-Q datasheet, BZT5250H-C36-Q pinout, BZT5250H-C36-Q application, or BZT5250H-C36-Q equivalent, this part serves as a stable, low-bias voltage reference in battery-powered sensor nodes, ECU power-rail monitoring, and automotive infotainment standby regulators where leakage-optimized switching and thermal robustness are critical.
Technical Context
This Zener operates in reverse breakdown with nominal VZ = 36 V (min 35.3 V, max 36.7 V) at IZ = 50 µA, exhibiting a temperature coefficient of +0.05 mV/K and diode capacitance of 45 pF at 0 V. Its intentional minor leakage rise supports fast transient response and noise reduction per AN90031.
Thermal design is enabled by Rth(j-a) = 330 K/W (free air) and Rth(j-sp) = 70 K/W (cathode solder point), with total power dissipation rated up to 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 36 V - Stable reverse breakdown voltage for precision reference in 12 V/24 V automotive subsystems |
| Tolerance | ±5 % - Tighter than standard Zeners; enables accurate threshold detection without trimming |
| IZ test current | 50 µA - Enables ultra-low quiescent current operation in battery-backed circuits |
| rdiff | 350 Ω at 5 mA - Low dynamic impedance ensures minimal output voltage shift under load variation |
| Ptot | 830 mW - Supports sustained regulation in compact SOD123F footprint without forced cooling |
| AEC-Q101 qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Cd | 45 pF at 0 V, 1 MHz - Low capacitance preserves high-frequency signal integrity in bias networks |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead, single-sided copper FR4 mounting, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; primary heat path to PCB pad |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - Reduces standby power in always-on vehicle modules below 2 µW |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - Improves switching speed and reduces broadband noise in sensing front-ends |
| Automotive qualification | AEC-Q101 compliant - Meets stress test requirements for temperature, humidity, and lifetime in engine bay and cabin environments |
| Thermal performance | Rth(j-sp) = 70 K/W - Enables direct thermal coupling to copper pour for >100 °C junction stability in sealed enclosures |
| Small form factor | SOD123F footprint - Fits high-density layouts in ADAS camera modules and gateway ECUs without sacrificing power rating |
Applications
| Automotive ECU Power Monitoring | Portable Sensor Node Reference |
|---|---|
Use Scenario: Monitoring 36 V auxiliary rail in hybrid vehicle DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 36 V threshold for overvoltage protection comparator input. Use Value: ±5 % tolerance and +0.05 mV/K TC ensure trip point drift remains under ±0.4 V across −40 °C to +125 °C ambient. |
Use Scenario: Battery voltage scaling in wireless tire pressure sensor with coin-cell supply. IC Role / Device Role / Timing Role: Low-current Zener shunt regulator establishing 36 V reference for ADC input scaling. Use Value: 50 µA test current enables full-scale reference generation while consuming <1.8 µA total circuit bias. |
| Infotainment System Standby Regulator | Industrial CAN Transceiver Bias Network |
Use Scenario: Providing clean 36 V bias to microcontroller RTC and wake-up circuitry during vehicle sleep mode. IC Role / Device Role / Timing Role: Voltage clamp maintaining stable logic-level reference independent of main 12 V rail fluctuations. Use Value: 45 pF capacitance avoids signal coupling into sensitive wake-up interrupt lines, preventing false triggers. |
Use Scenario: Stabilizing isolated 36 V supply for CAN FD transceiver VIO pin in heavy-duty truck control unit. IC Role / Device Role / Timing Role: Precision shunt regulator compensating for transformer winding tolerance and load transients. Use Value: 350 Ω rdiff limits voltage deviation to <175 mV under 500 µA load step, preserving CAN signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36 | Same 36 V, ±5 %, but SOT23 package; higher rdiff (500 Ω); no AEC-Q101 qualification | Limited to commercial-grade portable electronics; unsuitable for under-hood automotive deployment | Select only for cost-sensitive non-automotive designs where thermal derating and qualification are not required |
| MMSZ5245B | 36 V, ±5 %, SOD-123 package; 800 mW Ptot; rdiff = 400 Ω; no intentional leakage optimization | Higher forward voltage (1.1 V vs. 0.9 V); less effective noise suppression in high-speed analog paths | Prefer when legacy footprint compatibility is mandatory and AN90031 noise benefits are not needed |
Compared with BZT5250H-C36-Q, BZX84-C36 lacks automotive qualification and thermal performance, while MMSZ5245B trades off noise reduction capability for broader distributor availability-making the BZT5250H-C36-Q optimal for new AEC-Q101-compliant designs demanding low-noise, low-IQ regulation.
Availability
BZT5250H-C36-Q is available at Aetrix Electronics and suitable for automotive ECU monitoring, portable sensor node references, and infotainment standby regulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C36-Q 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current, low-noise voltage regulation in automotive electronics and battery-constrained IoT edge nodes.
FAQ
What is the maximum reverse voltage (VR) before breakdown for BZT5250H-C36-Q?
The device exhibits sharp reverse breakdown at nominal 36 V, with guaranteed VZ range of 35.3 V to 36.7 V at IZ = 50 µA. It does not specify a distinct non-breakdown "maximum reverse voltage"; operation above VZ enters controlled regulation, not avalanche failure, within its 830 mW power limit.
Can BZT5250H-C36-Q be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated Zener or switch to an active shunt regulator topology.
Is the SOD123F package compatible with standard reflow profiles?
Yes-the SOD123F package is qualified for lead-free reflow soldering per J-STD-020. The recommended profile uses peak temperature ≤ 260 °C, time above liquidus 60–150 s, and ramp rates per JEDEC standards; footprint dimensions are provided in Figure 10 of the datasheet.
How does the "intentional minor rise of leakage current" improve performance?
Per AN90031, this controlled increase in reverse leakage at low bias improves carrier injection dynamics, reducing turn-on delay and minimizing high-frequency ringing in fast-switching applications such as PWM feedback clamping and transient voltage suppression in CAN bus interfaces.
BZT5250H-C36-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H-Q
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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
BZT5250H-C36-QX FAQ
1.How can I place an order for BZT5250H-C36-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C36-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 BZT5250H-C36-QX reliable?
The price and inventory of BZT5250H-C36-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C36-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C36-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C36-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C36-QX?
BZT5250H-C36-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C36-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 BZT5250H-C36-QX?
For technical support, including BZT5250H-C36-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C36-QX requirements.
6.How does Aetrix verify that BZT5250H-C36-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C36-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 BZT5250H-C36-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C36-QX?
All BZT5250H-C36-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C36-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 BZT5250H-C36-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C36-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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