My Inquiry
My Account
Nexperia USA Inc. BZT52H-C30-QX
- Part No.:
- BZT52H-C30-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C30-QX.pdf
- Description:
- DIODE ZENER 30V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52H-C30-QX from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 30 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and AEC-Q101 qualification for automotive voltage regulation and reference applications.
For engineers reviewing the BZT52H-C30-QX datasheet, BZT52H-C30-QX pinout, BZT52H-C30-QX application, or BZT52H-C30-QX equivalent, this part delivers stable 30 V regulation under transient load conditions, supports high-reliability automotive subsystems, and provides low thermal resistance (70 K/W junction-to-solder point) for compact PCB layouts.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain a precise 30 V reference across its terminals when current exceeds the knee threshold (IZ ≥ 2 mA). Its differential resistance of 250 Ω at IZ = 2 mA ensures minimal voltage deviation under varying load currents.
The device exhibits a temperature coefficient of +0.05 mV/K at IZ = 2 mA, indicating near-zero drift over temperature, and features 50 μA maximum reverse leakage at VR = 24 V, enabling low-power standby regulation without excessive quiescent loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 28.0 V to 32.0 V at IZ = 2 mA - defines usable regulation window for 30 V nominal systems |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - enables sustained operation in thermally constrained automotive modules |
| Differential Resistance rdif | 250 Ω max at IZ = 2 mA - limits output voltage variation under ±1 mA load current change |
| Reverse Leakage IR | 40 μA max at VR = 24 V - ensures minimal standby current in always-on vehicle networks |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - supports bidirectional protection circuit integration with low conduction loss |
| Junction Temperature Range | –65 °C to +150 °C - meets under-hood automotive thermal requirements per AEC-Q101 |
| Package | SOD123F - surface-mount footprint compatible with standard reflow processes and FR4 PCBs |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with cathode marked by a bar on the body. The device measures 3.6 mm × 1.2 mm × 0.9 mm and uses tin-plated copper pads for soldering.
| 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; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock testing |
| ±5 % voltage tolerance | Supports cost-sensitive designs where tighter tolerances are unnecessary and board-level trimming is avoided |
| 830 mW power rating | Enables regulation in 12 V/24 V automotive subsystems without external heat sinking |
| Low thermal resistance (70 K/W) | Improves power handling in confined spaces by efficiently transferring heat to PCB copper |
| Small SOD123F footprint | Reduces PCB area by >30 % vs. DO-35 or SOD-123 packages while maintaining manufacturability |
Applications
| Engine Control Unit (ECU) Reference | Infotainment Power Sequencing |
|---|---|
|
Use Scenario: Providing stable 30 V reference for analog sensor signal conditioning circuits in engine control modules. IC Role / Device Role / Timing Role: Zener voltage reference for ADC biasing and op-amp feedback networks. Use Value: Maintains <±1 % reference accuracy across –40 °C to +125 °C ambient, ensuring consistent sensor calibration. |
Use Scenario: Enabling controlled power-up sequencing of display backlight drivers and audio amplifiers in head units. IC Role / Device Role / Timing Role: Voltage clamp in enable-line regulator circuits to prevent premature IC activation. Use Value: Limits enable voltage to 30 V during hot-swap events, preventing latch-up in downstream PMICs. |
| Body Control Module (BCM) Overvoltage Protection | ADAS Camera Power Rail Stabilization |
|
Use Scenario: Clamping transients on 12 V supply lines feeding door lock actuators and window lift motors. IC Role / Device Role / Timing Role: Transient voltage suppressor for ISO 7637-2 pulse 1/2a/5a compliance. Use Value: Absorbs 40 W non-repetitive surges (tp = 100 μs) without degradation, meeting OEM surge immunity specs. |
Use Scenario: Stabilizing 3.3 V LDO input rails in surround-view camera modules exposed to EMI-rich environments. IC Role / Device Role / Timing Role: Low-noise shunt regulator filtering high-frequency noise coupled onto power traces. Use Value: Achieves <150 pF capacitance at 0 V bias, minimizing RF coupling into image sensor analog front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52B-C30-Q | ±2 % tolerance, 200 Ω rdif at IZ = 5 mA | Higher precision required in feedback loops of switching regulators | Select when tighter voltage stability is needed despite higher cost and reduced surge margin |
| MMBZ5262B-7-F | ±5 % tolerance, 30 V VZ, SOT-23 package, 350 mW Ptot | Space-constrained consumer electronics with lower power demands | Choose only if board area is critical and thermal derating to 350 mW is acceptable |
Compared with BZT52B-C30-Q, the BZT52H-C30-QX trades voltage precision for higher surge capability and automotive qualification; compared with MMBZ5262B-7-F, it offers 2.4× higher power rating and AEC-Q101 validation but requires larger PCB real estate.
Availability
BZT52H-C30-QX is available at Aetrix Electronics and suitable for automotive engine control units, infotainment power sequencing, and ADAS camera stabilization requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-C30-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 advanced packaging technologies.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient suppression in harsh automotive environments.
FAQ
What is the maximum non-repetitive peak reverse current for BZT52H-C30-QX?
The maximum non-repetitive peak reverse current (IZSM) is 1.0 A at tp = 100 μs and Tamb = 25 °C, verified per IEC 60134 limiting values. This rating enables reliable clamping of ISO 7637-2 Pulse 5a transients without device failure.
How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?
The temperature coefficient is +0.05 mV/K at IZ = 2 mA, resulting in only ±1.5 mV drift from –40 °C to +125 °C. This translates to <±0.005 % VZ variation, preserving reference integrity in engine bay and cabin applications.
Can BZT52H-C30-QX be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but the BZT52H-C30-QX has a near-zero coefficient (+0.05 mV/K), making current sharing unstable. Parallel operation is not recommended due to mismatched thermal runaway risk.
What is the minimum reverse voltage required to achieve stable Zener conduction?
Stable Zener conduction begins at approximately 27 V, defined by the lower limit of the 28.0–32.0 V breakdown range. Below 27 V, reverse current remains below 1 μA; regulation becomes effective only above this threshold with IZ ≥ 2 mA.
BZT52H-C30-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):
- 30 V
- Tolerance:
- ±6.67%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-C30-QX FAQ
1.How can I place an order for BZT52H-C30-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C30-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-C30-QX reliable?
The price and inventory of BZT52H-C30-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-C30-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C30-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C30-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C30-QX?
BZT52H-C30-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C30-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-C30-QX?
For technical support, including BZT52H-C30-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C30-QX requirements.
6.How does Aetrix verify that BZT52H-C30-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C30-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-C30-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C30-QX?
All BZT52H-C30-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C30-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-C30-QX part is unused and in its original packaging.
Return procedure for BZT52H-C30-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-C30-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…
