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Nexperia USA Inc. BZT52H-B62-QX
- Part No.:
- BZT52H-B62-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B62-QX.pdf
- Description:
- DIODE ZENER 62V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,407
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Product details
Overview
BZT52H-B62-QX from Nexperia is a ±2 % tolerance Zener diode in SOD123F package, rated for 62 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and AEC-Q101 qualification for automotive voltage regulation. It operates with ≤140 μA reverse current at VR = 50 V and exhibits a temperature coefficient of +0.05 mV/K.
For engineers reviewing the BZT52H-B62-QX datasheet, BZT52H-B62-QX pinout, BZT52H-B62-QX application, or BZT52H-B62-QX equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, automotive-grade thermal performance (Rth(j-sp) = 150 K/W), and direct substitution guidance against industry-standard 62 V Zeners.
Technical Context
This device functions as a precision shunt voltage regulator, maintaining stable reference voltage under reverse-biased operation with differential resistance of 400 Ω at IZ = 2 mA and junction temperature range from –65 °C to +150 °C. Its low capacitance (35 pF at 1 MHz, VR = 0 V) supports high-frequency noise suppression in feedback paths.
The SOD123F package enables surface-mount compatibility on FR4 PCBs with single-sided copper, tin-plated finish, and defined thermal pad layout (1 cm² cathode mounting area). Non-repetitive peak reverse current capability is 0.3 A (tp = 100 μs), supporting transient overvoltage clamping in automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 62 V nominal at IZ = 2 mA; ±2 % tolerance ensures tight regulation in reference circuits. |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C; defines maximum continuous DC power handling on standard FR4 PCB. |
| Differential Resistance rdif | 400 Ω max at IZ = 2 mA; determines output impedance and load regulation sensitivity. |
| Reverse Current IR | ≤140 μA at VR = 50 V; specifies leakage level critical for low-power standby circuits. |
| Temperature Coefficient SZ | +0.05 mV/K at IZ = 2 mA; indicates near-zero drift across operating temperature range. |
| Junction-to-Solder-Point Rth(j-sp) | 150 K/W; quantifies thermal path efficiency from die to cathode solder joint for thermal design. |
| Non-repetitive Peak Reverse Current IZSM | 0.3 A (tp = 100 μs); supports short-duration surge suppression without degradation. |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with 3.4–3.6 mm body length, 2.5–2.7 mm width, and 0.55–0.70 mm height; cathode marked by bar on top surface.
| 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 bias applied between anode and cathode to enable Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power rails. |
| ±2 % voltage tolerance | Enables tighter system-level voltage margining than ±5 % Zeners in safety-critical sensing circuits. |
| 830 mW power rating | Supports higher steady-state current in voltage reference buffers without derating below 125 °C ambient. |
| Low 35 pF capacitance | Minimizes phase shift in high-speed feedback loops of switching regulators using Zener-derived references. |
| 150 K/W junction-to-solder thermal resistance | Allows direct thermal coupling to PCB copper pour for improved long-term reliability in under-hood environments. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stable 62 V reference for overvoltage detection in 48 V mild-hybrid battery management systems. IC Role / Device Role / Timing Role: Shunt regulator providing precise trip threshold for protection ICs monitoring DC-link voltage. Use Value: ±2 % tolerance ensures consistent fault detection across temperature, eliminating calibration drift in production units. |
Use Scenario: Precision voltage clamp in analog front-end of pressure transducers operating from 24 V industrial supply. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input swing to protect downstream op-amps from transient overvoltage. Use Value: 400 Ω differential resistance maintains signal integrity during clamping, minimizing distortion in millivolt-level sensor outputs. |
| Telecom Power Supply Monitoring | Medical Infusion Pump Power Supervision |
Use Scenario: Reference element in isolated DC-DC converter feedback network for telecom base station power supplies. IC Role / Device Role / Timing Role: Provides stable 62 V setpoint to optocoupler-driven error amplifier controlling primary-side MOSFET duty cycle. Use Value: +0.05 mV/K temperature coefficient prevents output voltage drift over –40 °C to +85 °C operating range. |
Use Scenario: Overvoltage guard in battery-backed real-time clock (RTC) circuitry of infusion pumps. IC Role / Device Role / Timing Role: Clamps backup supply rail to prevent damage to RTC IC during lithium battery charging surges. Use Value: 0.3 A non-repetitive peak current rating absorbs 100 μs transients without parametric shift or failure. |
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 MMBZ5262B | Same 62 V/±5 % rating but only qualified to JESD22-A108; no AEC-Q101 certification. | Limited to commercial-grade power supplies; unsuitable for automotive ECU designs requiring stress-tested reliability. | Select when cost is prioritized over automotive qualification and ±5 % tolerance is acceptable. |
| Vishay BZX84-C62 | 62 V/±5 %, SOT-23 package; 350 mW Ptot, higher rdif (600 Ω), no AEC-Q101 status. | Lower power handling and larger thermal resistance restrict use in high-current reference nodes. | Choose only for space-constrained layouts where SOT-23 footprint is mandatory and automotive compliance is not required. |
Compared with MMBZ5262B and BZX84-C62, BZT52H-B62-QX provides superior automotive qualification, tighter ±2 % tolerance, higher 830 mW power rating, and lower 400 Ω differential resistance-making it the sole option for AEC-Q101-compliant 62 V reference designs demanding long-term stability.
Availability
BZT52H-B62-QX is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, telecom power supervision, and medical device power monitoring requiring stable component supply with full traceability and AEC-Q101 documentation.
Supply support for BZT52H-B62-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 targets automotive voltage regulation and precision reference applications, designed specifically to meet AEC-Q101 stress requirements while delivering tight tolerance and robust thermal performance in compact SMD packages.
FAQ
What is the maximum continuous reverse current this Zener can handle at 62 V?
The BZT52H-B62-QX is not rated for continuous conduction at 62 V; its specified reverse current at VR = 50 V is ≤140 μA. At exactly 62 V, it enters breakdown and conducts based on external series resistance and thermal limits-maximum steady-state current is determined by Ptot/VZ ≈ 13.4 mA at 25 °C ambient, derating linearly above that temperature.
Does the SOD123F package require special reflow profile considerations?
Yes-Nexperia specifies reflow soldering only, with peak temperature ≤260 °C for ≤10 seconds. The SOD123F outline requires precise stencil aperture (1.1 mm × 1.1 mm per pad) and 2.9 mm pad spacing to ensure coplanarity and avoid tombstoning; hand soldering is not recommended due to thermal mass imbalance.
How does the +0.05 mV/K temperature coefficient impact accuracy over –40 °C to +125 °C?
Over that 165 K range, the total voltage drift is +8.25 mV (0.05 × 165), representing just ±0.013 % of 62 V-well within the ±2 % initial tolerance. This near-zero coefficient makes it suitable for uncalibrated reference circuits where thermal compensation circuitry would otherwise be needed.
Can this Zener replace older BZT52C62 variants in existing designs?
Yes, with caveats: BZT52H-B62-QX offers tighter ±2 % tolerance versus ±5 % for BZT52C62, identical SOD123F footprint, and AEC-Q101 qualification. However, its differential resistance (400 Ω) is higher than BZT52C62's typical 150 Ω, so verify loop stability in feedback applications before drop-in replacement.
BZT52H-B62-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):
- 62 V
- Tolerance:
- ±1.94%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 140 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-B62-QX FAQ
1.How can I place an order for BZT52H-B62-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B62-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-B62-QX reliable?
The price and inventory of BZT52H-B62-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-B62-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-B62-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B62-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B62-QX?
BZT52H-B62-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B62-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-B62-QX?
For technical support, including BZT52H-B62-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B62-QX requirements.
6.How does Aetrix verify that BZT52H-B62-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-B62-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-B62-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-B62-QX?
All BZT52H-B62-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B62-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-B62-QX part is unused and in its original packaging.
Return procedure for BZT52H-B62-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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