My Inquiry
My Account
Nexperia USA Inc. BZT52-C7V5X
- Part No.:
- BZT52-C7V5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C7V5X.pdf
- Description:
- DIODE ZENER 7.45V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,065
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52-C7V5X from Nexperia is a Zener voltage regulator diode in SOD123 surface-mount package, designed for precision voltage reference and low-power regulation at 7.5 V nominal Zener voltage (IZ = 5 mA), ±5 % tolerance, with 80 Ω maximum differential resistance and 1 μA reverse current at VR = 5.6 V - used in power supply feedback loops and analog sensor biasing circuits.
For engineers reviewing the BZT52-C7V5X datasheet, BZT52-C7V5X pinout, BZT52-C7V5X application, or BZT52-C7V5X equivalent, this page delivers verified electrical parameters, thermal behavior under PCB mounting conditions, cathode/anode terminal mapping, real-world regulation use cases, and cross-compatible alternatives with documented performance trade-offs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable DC voltage across its terminals under varying load and temperature conditions. Its 7.5 V nominal Zener voltage is specified at 5 mA test current, with a positive temperature coefficient of +2.5 to +5.3 mV/K enabling predictable drift compensation in multi-diode references.
The device exhibits low dynamic impedance (80 Ω max at IZ = 5 mA) and tight voltage tolerance (±5 %), making it suitable for non-critical regulation where cost and footprint are prioritized over ultra-low noise or automotive qualification. It is not rated for automotive use per Nexperia's revision history.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V to 7.9 V at IZ = 5 mA - defines regulation setpoint with ±5 % tolerance band for stable reference generation |
| Differential Resistance (rdif) | ≤ 80 Ω at IZ = 5 mA - determines output impedance and load regulation error under current variation |
| Reverse Current (IR) | ≤ 1 μA at VR = 5.6 V - ensures minimal leakage in standby or high-impedance bias networks |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as clamping diode in bidirectional protection schemes |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad - sets maximum continuous DC power handling in standard layout |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports industrial ambient operation without derating below −40 °C or above +85 °C |
| Thermal Resistance (Rth(j-sp)) | 55 K/W - quantifies junction-to-solder-point thermal path efficiency for thermal design margining |
Pinout & Package
SOD123 plastic surface-mount package: 2-terminal, flat lead, small outline; cathode marked by a bar on the body; dimensions: 3.75 mm × 1.7 mm × 1.3 mm (L × W × H); recommended reflow footprint per Fig. 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse breakdown current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage setting without trimming; sufficient for non-precision feedback and bias applications |
| 80 Ω max differential resistance | Minimizes output voltage shift under ±1 mA load change - critical for stable reference in op-amp input stages |
| 1 μA max reverse leakage at 5.6 V | Preserves accuracy in high-impedance divider networks and battery-powered sensor interfaces |
| 590 mW total power rating | Supports 75 mA continuous Zener current at 7.5 V - adequate for IC biasing and low-current shunt regulation |
| SOD123 footprint compatibility | Matches industry-standard 0805-equivalent land pattern; enables automated placement and reflow without custom tooling |
Applications
| Power Supply Feedback Reference | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing stable 7.5 V reference for TL431-based adjustable linear regulators or optocoupler feedback in isolated DC-DC converters. IC Role / Device Role: Shunt voltage reference establishing error amplifier threshold and loop stability point. Use Value: Maintains ±2 % output regulation over line/load variations due to low rdif and predictable VZ drift. |
Use Scenario: Biasing thermistor or RTD signal conditioning circuits requiring fixed 7.5 V excitation in portable environmental monitors. IC Role / Device Role: Precision voltage source for bridge excitation and ADC reference scaling. Use Value: Delivers <1 μA leakage to preserve microamp-level sensor currents and minimize self-heating error. |
| Overvoltage Clamp Protection | Microcontroller Reset Circuit |
Use Scenario: Clamping 12 V rail transients to protect 8 V-tolerant analog front-end inputs in industrial PLC modules. IC Role / Device Role: Reverse-biased transient suppressor limiting peak voltage to 7.9 V (VZ(max)). Use Value: Absorbs up to 40 W non-repetitive surge (100 μs) while holding clamp level within safe margin of downstream IC ratings. |
Use Scenario: Generating clean 7.5 V reset threshold for microcontrollers with external reset supervisor ICs. IC Role / Device Role: Stable voltage reference feeding comparator input in brown-out detection circuitry. Use Value: Ensures reset assertion within ±0.4 V over −40 °C to +85 °C due to known +3.5 mV/K temperature coefficient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-B7V5 | ±2 % tolerance (tighter), 150 Ω rdif (higher), same VZ range and SOD123 package | Better voltage accuracy but higher impedance limits use in dynamic load regulation | Select when absolute VZ accuracy > low rdif; avoid in high-frequency feedback paths |
| MMBZ5227BS | Same 7.5 V nominal, ±5 %, SOT-23 package, 100 Ω rdif, 350 mW Ptot | Smaller footprint but lower power rating reduces usable Zener current to ~46 mA | Choose for space-constrained designs accepting 40 % lower power headroom and 25 % higher impedance |
Compared with BZT52-C7V5X, BZT52-B7V5 trades tighter tolerance for higher dynamic impedance, while MMBZ5227BS sacrifices power handling and impedance performance for board area reduction - selection depends on whether accuracy, thermal margin, or footprint is the dominant constraint.
Availability
BZT52-C7V5X is available at Aetrix Electronics and suitable for power supply feedback reference, low-power sensor biasing, overvoltage clamp protection, and microcontroller reset circuit design requiring stable component supply and consistent SOD123 packaging.
Supply support for BZT52-C7V5X 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 BZT52 series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-sensitive, surface-mount voltage regulation and clamping in consumer, industrial, and computing applications - not qualified for automotive use.
FAQ
What is the maximum continuous Zener current for BZT52-C7V5X at room temperature?
The maximum continuous Zener current is calculated from Ptot = 590 mW and VZ ≈ 7.5 V, yielding ~78.7 mA. However, derating is required above 25 °C ambient; at 85 °C, usable current drops to ~45 mA due to thermal resistance (210 K/W junction-to-ambient) and 150 °C max Tj.
Does BZT52-C7V5X meet automotive AEC-Q200 requirements?
No. Per Nexperia's revision history (Rev. 2, October 2025), the C-series BZT52 devices are explicitly designated as non-automotive qualified. Automotive applications require the -Q qualified variants (e.g., BZT52-C7V5X-Q), which undergo extended temperature cycling, humidity testing, and failure analysis per AEC-Q200.
How does the temperature coefficient affect regulation accuracy over −40 °C to +85 °C?
With a typical SZ of +3.5 mV/K, the Zener voltage shifts +437.5 mV across 125 K ΔT - from ~7.25 V at −40 °C to ~7.69 V at +85 °C. This ±2.9 % drift must be accounted for in precision references; it is acceptable for non-critical biasing where ±5 % overall tolerance is specified.
Can BZT52-C7V5X be used in parallel for higher power dissipation?
No. Zener diodes exhibit negative temperature coefficients at low voltages and positive above ~5 V, but manufacturing spread in VZ causes current hogging. Even matched units show >5 % VZ variation, leading to unequal current sharing and thermal runaway - parallel operation is not recommended without active balancing circuitry.
BZT52-C7V5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.45 V
- Tolerance:
- ±6%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C7V5X FAQ
1.How can I place an order for BZT52-C7V5X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C7V5X 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 BZT52-C7V5X reliable?
The price and inventory of BZT52-C7V5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C7V5X is usually 5 days.
3.What payment methods are accepted for BZT52-C7V5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C7V5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C7V5X?
BZT52-C7V5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C7V5X 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 BZT52-C7V5X?
For technical support, including BZT52-C7V5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C7V5X requirements.
6.How does Aetrix verify that BZT52-C7V5X is sourced from the original manufacturer or authorized distributors?
All BZT52-C7V5X 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 BZT52-C7V5X meets industry standards.
7.What is the process for return or replacement of BZT52-C7V5X?
All BZT52-C7V5X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C7V5X, 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 BZT52-C7V5X part is unused and in its original packaging.
Return procedure for BZT52-C7V5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C7V5X 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…
