My Inquiry
My Account
Nexperia USA Inc. BZT52H-A7V5X
- Part No.:
- BZT52H-A7V5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A7V5X.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,878
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52H-A7V5X from Nexperia is a ±1 % tolerance Zener diode in SOD123F package, designed for precision voltage regulation and reference applications at 7.5 V nominal breakdown voltage (IZ = 5 mA), with 80 Ω differential resistance, 1 μA reverse current at VR = 5.6 V, and +2.5 mV/K temperature coefficient - used in power supply feedback loops and analog sensor biasing circuits.
For engineers reviewing the BZT52H-A7V5X datasheet, BZT52H-A7V5X pinout, BZT52H-A7V5X application, or BZT52H-A7V5X equivalent, this page delivers verified Zener parameters, thermal performance data, SOD123F mounting guidance, and direct alternatives for stable 7.5 V reference design in industrial and consumer power management systems.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ = 7.42–7.58 V at IZ = 5 mA, enabling accurate voltage clamping and low-drift reference generation. Its ±1 % tolerance and +2.5 mV/K temperature coefficient support stable operation across -65 °C to +150 °C ambient range.
Thermal resistance from junction to solder point is 70 K/W, and total power dissipation reaches 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad - confirming suitability for compact surface-mounted designs requiring reliable thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.42–7.58 V at IZ = 5 mA - defines precise regulation threshold for feedback networks |
| Tolerance | ±1 % - ensures minimal unit-to-unit variation in critical reference applications |
| Differential Resistance (rdif) | 80 Ω max - limits output impedance impact on regulation accuracy under load changes |
| Reverse Current (IR) | 1 μA max at VR = 5.6 V - guarantees low leakage in standby or high-impedance sensing paths |
| Temperature Coefficient (SZ) | +2.5 mV/K - enables predictable drift compensation in temperature-sensitive analog circuits |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports robust operation in thermally constrained PCB layouts |
| Junction Temperature (Tj) | 150 °C max - allows sustained operation in industrial environments without derating |
Pinout & Package
SOD123F surface-mount plastic package: 2-pin, flat lead, small outline (3.6 × 1.7 mm footprint), 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-biased configuration enables Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| High-precision voltage reference | ±1 % VZ tolerance enables <10 mV error in 7.5 V regulation without trimming |
| Low thermal drift | +2.5 mV/K coefficient allows predictable offset correction in wide-temperature designs |
| Compact SMD packaging | SOD123F footprint (3.6 × 1.7 mm) supports high-density layout in space-constrained power modules |
| Robust thermal performance | Rth(j-sp) = 70 K/W ensures efficient heat transfer to PCB copper, sustaining 830 mW at 25 °C ambient |
| Controlled leakage behavior | IR ≤ 1 μA at VR = 5.6 V minimizes quiescent current draw in battery-powered reference circuits |
Applications
| Power Supply Feedback Loop | ADC Reference Stabilization |
|---|---|
Use Scenario: Regulating output voltage in isolated DC-DC converters via optocoupler-coupled feedback path. IC Role / Device Role / Timing Role: Zener diode provides stable 7.5 V reference for TL431-type shunt regulator input. Use Value: ±1 % VZ tolerance maintains output accuracy within ±0.5 % over line/load/temperature, reducing need for post-production calibration. |
Use Scenario: Biasing precision analog front-ends in 12-bit SAR ADCs for industrial sensors. IC Role / Device Role / Timing Role: Supplies low-noise, temperature-compensated reference voltage to ADC's REF+ pin. Use Value: +2.5 mV/K SZ and 80 Ω rdif limit reference drift to <1 LSB over 0–70 °C, preserving measurement integrity. |
| Overvoltage Protection Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting 5 V logic inputs from transient surges in automotive body control modules. IC Role / Device Role / Timing Role: Clamps induced spikes above 7.5 V to prevent latch-up in downstream CMOS buffers. Use Value: 4.0 A non-repetitive peak reverse current (IZSM) absorbs 100 μs transients without degradation. |
Use Scenario: Generating clean reset signal for ARM Cortex-M0 microcontrollers during brown-out events. IC Role / Device Role / Timing Role: Forms RC-delayed reset generator with 7.5 V threshold triggering POR circuitry. Use Value: 1 μA IR at 5.6 V ensures negligible discharge of timing capacitor, maintaining reset pulse width accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B7V5 | ±2 % tolerance (7.35–7.65 V), same SOD123F package and thermal specs | Acceptable where tighter regulation not required; lower cost per unit | Select when system-level calibration compensates for wider VZ spread |
| MMSZ5236B-TP | ±5 % tolerance (7.13–7.88 V), SOD-123 package, 500 mW Ptot, higher rdif (~100 Ω) | Higher power margin at lower cost but reduced accuracy and thermal capability | Choose only for non-critical biasing where 830 mW dissipation is unnecessary |
Compared with BZT52H-A7V5X, the BZT52H-B7V5 offers identical thermal and package performance at lower precision, while MMSZ5236B-TP trades accuracy and thermal headroom for cost - making the A-grade part optimal for uncalibrated, high-stability 7.5 V references.
Availability
BZT52H-A7V5X is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and embedded microcontroller reset circuits requiring stable component supply and traceable sourcing.
Supply support for BZT52H-A7V5X 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 and industrial-grade components.
The BZT52H series belongs to Nexperia's precision Zener diode product line, engineered specifically for stable voltage reference and regulation in space-constrained, thermally demanding applications across consumer, industrial, and computing markets.
FAQ
What is the maximum reverse current (IR) specification for BZT52H-A7V5X at VR = 5.6 V?
The maximum reverse current is 1 μA at VR = 5.6 V and Tj = 25 °C, measured under specified test conditions. This low leakage ensures minimal loading on high-impedance nodes in reference and sensing circuits, preserving signal integrity and power efficiency in battery-operated systems.
Can BZT52H-A7V5X be used in reflow soldering processes?
Yes - the SOD123F package is qualified exclusively for reflow soldering, with a recommended footprint defined in Figure 12 of the datasheet (2.9 × 1.6 mm solder land, 4.4 mm occupied area). Wave soldering is not supported due to thermal stress limitations on the molded plastic body.
How does the +2.5 mV/K temperature coefficient affect long-term stability in a 0–70 °C operating range?
Over 0–70 °C, the Zener voltage shifts by +175 mV (70 K × 2.5 mV/K), resulting in a final VZ of ~7.755 V. This predictable linear drift enables hardware or firmware compensation in precision systems, unlike non-linear coefficients found in lower-grade Zeners.
Is BZT52H-A7V5X automotive-qualified?
No - per Revision 7 (January 2023), this device is explicitly designated as non-automotive qualified. Nexperia offers separate -Q qualified variants (e.g., BZT52H-Q series) for AEC-Q101 compliance; BZT52H-A7V5X is intended for industrial, consumer, and computing applications only.
BZT52H-A7V5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±1%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-A7V5X FAQ
1.How can I place an order for BZT52H-A7V5X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A7V5X 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-A7V5X reliable?
The price and inventory of BZT52H-A7V5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-A7V5X is usually 5 days.
3.What payment methods are accepted for BZT52H-A7V5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A7V5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A7V5X?
BZT52H-A7V5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A7V5X 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-A7V5X?
For technical support, including BZT52H-A7V5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A7V5X requirements.
6.How does Aetrix verify that BZT52H-A7V5X is sourced from the original manufacturer or authorized distributors?
All BZT52H-A7V5X 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-A7V5X meets industry standards.
7.What is the process for return or replacement of BZT52H-A7V5X?
All BZT52H-A7V5X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A7V5X, 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-A7V5X part is unused and in its original packaging.
Return procedure for BZT52H-A7V5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-A7V5X 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…
