My Inquiry
My Account
Nexperia USA Inc. BZT52H-A3V6-QX
- Part No.:
- BZT52H-A3V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A3V6-QX.pdf
- Description:
- DIODE ZENER 3.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,170
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52H-A3V6-QX from Nexperia is a ±1 % tolerance Zener diode in SOD123F package, rated for 3.6 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-A3V6-QX datasheet, BZT52H-A3V6-QX pinout, BZT52H-A3V6-QX application, or BZT52H-A3V6-QX equivalent, this page delivers verified Zener parameters, thermal resistance values, reverse current limits, temperature coefficient behavior, and automotive-grade reliability context - all confirmed from Nexperia's official product data sheet Rev. 1 (October 2021).
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a tightly controlled 3.56–3.64 V working voltage range at IZ = 5 mA, differential resistance ≤95 Ω, and temperature coefficient of −3.5 to 0.0 mV/K. It maintains stable regulation under ambient temperatures from −65 °C to +150 °C.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it delivers 830 mW total power dissipation with 70 K/W junction-to-solder-point thermal resistance and supports non-repetitive peak reverse currents up to 6.0 A for surge protection functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 3.56–3.64 V at IZ = 5 mA - defines precise regulation threshold for low-voltage reference circuits. |
| Tolerance | ±1 % - enables high-accuracy voltage clamping in feedback loops and precision biasing networks. |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 layout. |
| Differential Resistance (rdif) | ≤95 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity. |
| Reverse Current (IR) | ≤5 μA at VR = 1 V - ensures minimal leakage in standby or low-power monitoring paths. |
| Temperature Coefficient (SZ) | −3.5 to 0.0 mV/K - quantifies VZ drift over temperature, critical for thermal stability in automotive environments. |
| Junction Temperature (Tj) | −65 to +150 °C - confirms operational suitability across extended automotive temperature ranges. |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, cathode-marked with bar; dimensions 3.6 × 1.2 × 0.9 mm (L × W × H), footprint per Figure 12.
| 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 polarity must be maintained for Zener operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress testing. |
| ±1 % VZ tolerance | Enables direct replacement in high-precision feedback networks without calibration adjustment. |
| 830 mW power rating | Supports higher-current regulation than standard 500 mW Zeners, reducing need for parallel devices. |
| Low thermal resistance (70 K/W) | Improves power handling capability when mounted on 1 cm² cathode pad, minimizing junction temperature rise. |
| Non-repetitive IZSM = 6.0 A | Provides transient overvoltage suppression capability during ESD or load-dump events in vehicle systems. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing reference voltage for microcontroller ADC inputs monitoring door lock status or window position. IC Role / Device Role / Timing Role: Zener voltage reference providing 3.6 V bias to op-amp input stage and ADC reference divider. Use Value: ±1 % tolerance ensures <10 mV absolute error in 12-bit ADC full-scale measurement, meeting ASIL-B functional safety margin requirements. |
Use Scenario: Regulating supply to analog front-end circuitry in 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Shunt regulator maintaining stable 3.6 V rail for instrumentation amplifier and voltage reference IC. Use Value: 830 mW rating allows operation at 15 mA load current while staying within thermal limits on compact PCBs. |
| Consumer USB-C Power Delivery Monitor | Medical Portable Diagnostic Device |
Use Scenario: Clamping CC line voltage during USB-C negotiation to protect PD controller GPIO pins. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting CC line to 3.6 V during hot-plug events. Use Value: 6.0 A non-repetitive peak current rating absorbs 100 ns ESD pulses per IEC 61000-4-2 Level 4 without degradation. |
Use Scenario: Providing stable bias voltage for low-noise amplifiers in portable ECG signal chains. IC Role / Device Role / Timing Role: Precision shunt reference establishing 3.6 V common-mode level for differential amplification. Use Value: −3.5 to 0.0 mV/K temperature coefficient minimizes baseline drift across 0–40 °C operating range, preserving diagnostic accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52B3V6-Q | ±2 % tolerance, 95 Ω rdif, same SOD123F package | Lower accuracy; suitable where ±20 mV VZ variation is acceptable | Select for cost-sensitive non-automotive designs requiring reduced test overhead. |
| MMSZ4685-TP | ±5 % tolerance, 3.5–3.9 V range, 500 mW Ptot, SOD-123 package | Higher tolerance, lower power; not AEC-Q101 qualified | Use only in commercial-grade applications with relaxed thermal and reliability requirements. |
Compared with BZT52H-A3V6-QX, BZT52B3V6-Q trades ±1 % accuracy for broader availability and lower unit cost, while MMSZ4685-TP lacks automotive qualification and thermal robustness - making the H-series part essential for safety-critical or high-temperature deployments.
Availability
BZT52H-A3V6-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C protection circuits, and portable medical diagnostics requiring stable component supply with AEC-Q101 compliance.
Supply support for BZT52H-A3V6-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 stable voltage reference and overvoltage protection in harsh automotive and industrial environments.
FAQ
What is the maximum continuous reverse current this Zener can handle at 3.6 V?
The BZT52H-A3V6-QX is not rated for continuous reverse conduction at its Zener voltage. Its specified operating condition is IZ = 5 mA for parameter characterization. Continuous current must remain within the 830 mW power limit - at 3.6 V, that corresponds to ~230 mA maximum, but thermal derating above 25 °C applies per the Rth(j-a) = 330 K/W curve.
Does the SOD123F package require special reflow profile considerations?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD123F. The package requires peak temperature ≤260 °C, time above 217 °C of 40–120 seconds, and ramp rates compliant with IPC-J-STD-020. Hand soldering is not advised due to thermal stress risk on the small cathode pad.
How does the −3.5 to 0.0 mV/K temperature coefficient affect regulation accuracy over −40 to +125 °C?
Over that range, VZ drift is bounded by (125 − (−40)) × 0.0035 = 578 mV maximum negative shift, or zero positive shift. At nominal 3.6 V, this yields a worst-case regulation band of 3.02–3.60 V - a 16 % span - which is why system-level compensation or tighter-coefficient variants are used in precision applications.
Is the 6.0 A non-repetitive peak reverse current tested per JEDEC standards?
Yes - the 6.0 A IZSM rating is validated per IEC 60134 Absolute Maximum Ratings, using tp = 100 μs square-wave pulses at Tj = 25 °C prior to surge. This reflects single-event surge capability, not repetitive duty-cycle operation, and aligns with AEC-Q101 transient testing protocols for automotive Zeners.
BZT52H-A3V6-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):
- 3.6 V
- Tolerance:
- ±1.11%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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-A3V6-QX FAQ
1.How can I place an order for BZT52H-A3V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A3V6-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-A3V6-QX reliable?
The price and inventory of BZT52H-A3V6-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-A3V6-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-A3V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A3V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A3V6-QX?
BZT52H-A3V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A3V6-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-A3V6-QX?
For technical support, including BZT52H-A3V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A3V6-QX requirements.
6.How does Aetrix verify that BZT52H-A3V6-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-A3V6-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-A3V6-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-A3V6-QX?
All BZT52H-A3V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A3V6-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-A3V6-QX part is unused and in its original packaging.
Return procedure for BZT52H-A3V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-A3V6-QX Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
