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Nexperia USA Inc. BZX8450-C7V5-QVL
- Part No.:
- BZX8450-C7V5-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX8450-C7V5-QVL.pdf
- Description:
- DIODE ZENER 7.5V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,704
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Product details
Overview
BZX8450-C7V5-Q from Nexperia is a low-current Zener voltage regulator diode in SOT23 package, designed for precision biasing and voltage reference in automotive and portable electronics. It delivers 7.5 V nominal regulation at 50 µA test current, with ±5 % tolerance, 80 Ω differential resistance at 5 mA, and 2.5 mV/K temperature coefficient. Used in ECU sensor signal conditioning and battery-powered microcontroller reset circuits.
For engineers reviewing the BZX8450-C7V5-Q datasheet, BZX8450-C7V5-Q pinout, BZX8450-C7V5-Q application, or BZX8450-C7V5-Q equivalent, this page provides verified electrical characteristics, AEC-Q101 qualification status, thermal resistance data (Rth(j-a) = 500 K/W), and automotive-grade marking code F3% - all critical for low-power analog design validation.
Technical Context
This Zener diode operates in reverse breakdown mode with specified regulation at ultra-low 50 µA test current, enabling stable reference generation in micropower systems. Its intentional minor leakage rise improves switching speed and reduces noise per AN90031, making it suitable for dynamic bias networks.
The device features a 7.13 V to 7.88 V working voltage range at 25 °C, 0.1 µA max reverse current at VR = 5.7 V, and 150 pF capacitance at VR = 0 V and f = 1 MHz - parameters directly supporting low-noise analog front-end and ADC reference stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V (min 7.13 V, max 7.88 V at IZ = 50 µA; defines precise DC reference level) |
| Tolerance | ±5 % (C-series grade; enables cost-optimized selection where tight regulation is not required) |
| Differential Resistance | 80 Ω (at IZ = 5 mA; determines output impedance and load regulation error) |
| Temperature Coefficient | +2.5 mV/K (positive slope improves thermal stability in ambient-varying environments) |
| Forward Voltage | 0.9 V (at IF = 10 mA; ensures low-loss forward conduction during power-up or fault conditions) |
| Power Dissipation | 250 mW (at Tamb ≤ 25 °C on FR4 PCB; sets maximum continuous bias current limit) |
| Reverse Current | 0.1 µA (max at VR = 5.7 V; guarantees minimal quiescent drain in always-on monitoring circuits) |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), qualified per AEC-Q101 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node; reverse-biased operation requires cathode at higher potential |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating - no PCB trace or solder joint |
| 3 | Cathode (K) | Connects to regulated voltage rail; carries full Zener current and defines reference output point |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables stable reference in sub-100 µA supply rails (e.g., RTC backup, wake-up comparators) |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in feedback paths |
| AEC-Q101 qualification | Qualified for automotive applications - supports under-hood and ADAS module designs without derating |
| Thermal performance | Rth(j-a) = 500 K/W (FR4, single-sided copper) - allows direct thermal modeling for ambient-limited PCB layouts |
Applications
| Automotive Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 7.5 V bias to analog output sensors (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed excitation voltage for ratiometric sensor bridges. Use Value: ±5 % tolerance and +2.5 mV/K TC ensure <±10 mV drift over −40 °C to +125 °C, maintaining ADC accuracy without calibration. |
Use Scenario: Generating clean, low-current reset threshold for 3.3 V microcontrollers in telematics modules. IC Role / Device Role / Timing Role: Reverse-biased Zener clamping reset line to 7.5 V until power stabilizes, then enabling POR circuitry. Use Value: 0.1 µA max IR at 5.7 V prevents false triggering during brown-out, while 80 Ω rdiff ensures fast release timing. |
| Portable Battery Monitor | Industrial Signal Conditioning |
Use Scenario: Reference voltage source for Li-ion cell voltage measurement in handheld medical devices. IC Role / Device Role / Timing Role: Low-quiescent Zener providing 7.5 V reference to 12-bit SAR ADC input stage. Use Value: 50 µA test current matches typical ADC reference buffer input current, minimizing loading error and extending battery life. |
Use Scenario: Precision voltage clamp in 4–20 mA transmitter loop-powered analog front ends. IC Role / Device Role / Timing Role: Regulator diode limiting op-amp supply rail to protect against transient overvoltage events. Use Value: 250 mW Ptot and 40 W non-repetitive surge rating (tp = 100 µs) absorb ESD and inductive kick without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5,115 | Same SOT23 package, ±5 % tolerance, but rated only to 200 mW Ptot and not AEC-Q101 qualified | Limited to industrial/commercial use; lacks automotive reliability validation and thermal margin | Select when cost is primary and automotive qualification is unnecessary |
| MMSZ5236B-TP | 7.5 V ±5 %, 500 mW Ptot, but 100 Ω rdiff (vs. 80 Ω) and −2.5 mV/K TC (vs. +2.5 mV/K) | Higher impedance and negative TC increase output drift in warm environments | Prefer only if higher power handling is required and thermal drift can be compensated |
Compared with BZX8450-C7V5-Q, the BZX84-C7V5,115 offers identical regulation but lacks automotive qualification and 50 mW power headroom, while MMSZ5236B-TP trades tighter thermal stability for higher power and looser impedance control - making the BZX8450-C7V5-Q optimal for AEC-Q101-compliant, low-drift, low-power reference designs.
Availability
BZX8450-C7V5-Q is available at Aetrix Electronics and suitable for automotive ECUs, portable medical monitors, and industrial 4–20 mA transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8450-C7V5-Q 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.
The BZX8450-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for low-current, low-noise voltage reference in automotive and portable electronics where micropower operation and thermal stability are critical.
FAQ
What is the marking code for BZX8450-C7V5-Q?
The official marking code for BZX8450-C7V5-Q is F3%, as confirmed in Table 4 of the Rev. 3 datasheet. This three-character code appears on the top surface of the SOT23 package and uniquely identifies the 7.5 V ±5 % variant within the C-series lineup.
Is BZX8450-C7V5-Q suitable for reverse-voltage protection?
No - BZX8450-C7V5-Q is a Zener regulator diode optimized for reverse-bias voltage reference, not forward-conduction protection. Its 0.9 V VF at 10 mA and lack of surge-rated forward SOA make it unsuitable for polarity protection; dedicated TVS or Schottky diodes are required instead.
How does the "intentional minor rise of leakage current" affect circuit behavior?
Per AN90031, the controlled IR increase reduces junction capacitance transients during switching, lowering high-frequency noise coupling into adjacent analog nodes. This is especially beneficial in op-amp feedback references and ADC reference buffers where spectral purity matters.
Can BZX8450-C7V5-Q be used in parallel for higher current capability?
No - Zener diodes exhibit manufacturing spread in VZ and rdiff, causing current imbalance and thermal runaway when paralleled. For higher current, use a single higher-power Zener (e.g., BZX85-C7V5) or an active shunt regulator circuit with matched components.
BZX8450-C7V5-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8450-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX8450-C7V5-QVL FAQ
1.How can I place an order for BZX8450-C7V5-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8450-C7V5-QVL 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 BZX8450-C7V5-QVL reliable?
The price and inventory of BZX8450-C7V5-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8450-C7V5-QVL is usually 5 days.
3.What payment methods are accepted for BZX8450-C7V5-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8450-C7V5-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8450-C7V5-QVL?
BZX8450-C7V5-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8450-C7V5-QVL 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 BZX8450-C7V5-QVL?
For technical support, including BZX8450-C7V5-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8450-C7V5-QVL requirements.
6.How does Aetrix verify that BZX8450-C7V5-QVL is sourced from the original manufacturer or authorized distributors?
All BZX8450-C7V5-QVL 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 BZX8450-C7V5-QVL meets industry standards.
7.What is the process for return or replacement of BZX8450-C7V5-QVL?
All BZX8450-C7V5-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8450-C7V5-QVL, 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 BZX8450-C7V5-QVL part is unused and in its original packaging.
Return procedure for BZX8450-C7V5-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8450-C7V5-QVL 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
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