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onsemi BZX84C7V5_D87Z
- Part No.:
- BZX84C7V5_D87Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C7V5_D87Z.pdf
- Description:
- DIODE ZENER 7.5V 350MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,050
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Product details
Overview
BZX84C7V5_D87Z from ON Semiconductor is a 7.5 V ±5% tolerance surface-mount Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C ambient, with typical zener impedance of 6 Ω at 20 mA and reverse leakage current ≤1 µA at 5.0 V, used for voltage regulation and overvoltage protection in low-power analog and digital supply rails.
For engineers reviewing the BZX84C7V5_D87Z datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance (±5%), dynamic impedance at specified test current, thermal resistance (RJA = 465°C/W), junction temperature range (–55°C to +150°C), and SOT-23 footprint compatibility with automated PCB assembly.
Technical Context
The BZX84C7V5_D87Z operates as a silicon planar epitaxial Zener diode optimized for stable voltage reference and clamping functions in space-constrained designs. Its breakdown mechanism is predominantly avalanche-dominated above 6 V, resulting in positive temperature coefficient behavior (+2.5 mV/°C at 5 mA) and low capacitance (140 pF at 0 V).
It is characterized at three test currents (1 mA, 5 mA, 20 mA) to support design flexibility across varying load conditions. The device meets JEDEC standard SOT-23 mechanical dimensions and is qualified per JESD22-A108 for operating junction temperature up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V min / 8.0 V max at IZ = 20 mA - defines regulated output voltage window under nominal load |
| Zener Impedance (ZZ) | 6 Ω max at IZ = 20 mA - determines output voltage stability under dynamic load changes |
| Power Dissipation (PD) | 250 mW at TA = 25°C - sets maximum continuous DC power handling on standard FR-4 PCB |
| Reverse Leakage (IR) | ≤1 µA at VR = 5.0 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Tempco (dVZ/dT) | +2.5 mV/°C at IZ = 5 mA - quantifies voltage drift with ambient temperature variation |
| Junction-to-Ambient RJA | 465°C/W - enables thermal derating calculation for operation above 25°C ambient |
| Capacitance (CJ) | 140 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
Pinout & Package
Package: SOT-23 (JEDEC TO-236AB), 3-terminal plastic surface-mount package with cathode-marked lead. Standard footprint compatible with IPC-7351B SOICN-3 land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during normal forward bias; tied to ground or return path in shunt regulator configuration |
| Cathode | Zener breakdown terminal | Connected to regulated voltage node; carries reverse current during clamping/regulation; thermally coupled to lead frame for heat dissipation |
| Not Connected | Unused internal terminal | No electrical connection - mechanical tie-bar stub; must not be soldered or routed to avoid shorting or mechanical stress |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables precise voltage setting without external trimming in cost-sensitive consumer and industrial power monitors |
| Low dynamic impedance (6 Ω) | Maintains <±25 mV output deviation across 5–20 mA load current swing in feedback-sensing applications |
| 140 pF junction capacitance | Minimizes signal coupling in mixed-signal systems where Zener is placed near ADC references or clock lines |
| +2.5 mV/°C tempco | Allows predictable compensation in temperature-compensated reference circuits using complementary diodes or resistors |
| SOT-23 package | Supports 0.65 mm pitch reflow assembly and achieves >10,000 units/hour placement throughput in high-volume manufacturing |
Applications
| Power Supply Monitoring | Overvoltage Clamp |
|---|---|
Use Scenario: Detecting brown-out or overvoltage events on 5 V or 3.3 V microcontroller supply rails. IC Role / Device Role / Timing Role: Shunt reference element in comparator-based threshold detection circuit. Use Value: Delivers repeatable 7.5 V trigger point with <±0.1 V drift over –40°C to +85°C, enabling reliable system reset assertion. | Use Scenario: Protecting USB data lines or GPIO pins from ESD-induced transients exceeding 6 V. IC Role / Device Role / Timing Role: Fast-acting voltage clamp limiting peak excursion to ≤8.0 V. Use Value: Responds within <1 ns to 1 kV HBM pulses while maintaining <1 µA leakage below 5 V, preserving signal integrity. |
| Reference Voltage Source | Current Sink Regulator |
Use Scenario: Providing stable bias voltage for op-amp input stages or sensor excitation circuits. IC Role / Device Role / Timing Role: Low-noise DC reference node with minimal temperature-induced drift. Use Value: Achieves <±0.5% total error over full temperature and current range, supporting 12-bit ADC accuracy. | Use Scenario: Setting constant current for LED biasing or photodiode transimpedance amplifiers. IC Role / Device Role / Timing Role: Voltage-controlled current source via series resistor and fixed VZ. Use Value: Enables ±3% current accuracy with 1% resistor tolerance, eliminating need for precision current sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5236BS-7-F | Zener voltage 7.5 V ±5%, PD = 200 mW, ZZ = 7 Ω at 20 mA, RJA = 500°C/W | Lower power rating reduces thermal margin in sustained 15 mA operation; identical SOT-23 pinout | Select when board-level thermal management limits average power to <180 mW |
| BZX84-C7V5,115 | Zener voltage 7.5 V ±5%, PD = 250 mW, ZZ = 6 Ω at 20 mA, RJA = 465°C/W, same Fairchild/ON die | No functional difference; alternate marking and tape-and-reel packaging variant | Direct form-fit-function replacement with identical electrical and thermal performance |
Compared with MMBZ5236BS-7-F and BZX84-C7V5,115, the BZX84C7V5_D87Z offers identical core regulation performance and thermal capability as the latter, while providing higher power headroom than the former-making it optimal for designs requiring sustained 20 mA operation without thermal derating.
Availability
BZX84C7V5_D87Z is available at Aetrix Electronics and suitable for power supply monitoring, overvoltage protection, reference voltage sourcing, and current sink regulation requiring stable component supply across automotive infotainment, industrial PLC I/O modules, and medical sensor front-ends.
Supply support for BZX84C7V5_D87Z 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud power applications.
The BZX84 series belongs to ON Semiconductor's general-purpose Zener diode product line, engineered for cost-effective, high-reliability voltage regulation and transient suppression in compact, high-volume electronic systems.
FAQ
What is the maximum steady-state power dissipation for BZX84C7V5_D87Z?
The BZX84C7V5_D87Z has a maximum power dissipation of 250 mW at an ambient temperature of 25°C when mounted on a standard FR-4 PCB. Derating is required above 25°C at 0.54 mW/°C based on its RJA of 465°C/W. This limit ensures safe operation without exceeding the 150°C maximum junction temperature.
Does BZX84C7V5_D87Z have a specified forward voltage?
Yes, the BZX84C7V5_D87Z specifies a maximum forward voltage of 0.9 V at 10 mA forward current, consistent across the entire BZX84 series. This value is relevant for applications where the device may conduct in forward bias, such as input protection or bidirectional clamping circuits.
What is the zener impedance of BZX84C7V5_D87Z at 5 mA test current?
The BZX84C7V5_D87Z exhibits a zener impedance of 80 Ω maximum at 5 mA test current, as documented in the Electrical Characteristics table. This higher impedance at low current reflects increased dynamic resistance in the knee region of the breakdown curve, which affects regulation accuracy under light-load conditions.
Is BZX84C7V5_D87Z suitable for ESD protection on high-speed data lines?
The BZX84C7V5_D87Z provides effective clamping for low-energy transients but is not optimized for high-speed ESD protection due to its 140 pF junction capacitance. For USB 2.0 or I²C lines, dedicated low-capacitance TVS diodes (e.g., <5 pF) are preferred; however, BZX84C7V5_D87Z remains suitable for low-frequency GPIO or power rail clamping.
How does temperature affect the zener voltage of BZX84C7V5_D87Z?
The BZX84C7V5_D87Z has a positive temperature coefficient of +2.5 mV/°C at 5 mA, meaning its zener voltage increases linearly with rising junction temperature. Over –55°C to +150°C, this results in approximately ±375 mV total drift, which must be accounted for in precision reference designs.
BZX84C7V5_D87Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±6%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 15 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C7V5_D87Z FAQ
1.How can I place an order for BZX84C7V5_D87Z through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C7V5_D87Z 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 BZX84C7V5_D87Z reliable?
The price and inventory of BZX84C7V5_D87Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C7V5_D87Z is usually 5 days.
3.What payment methods are accepted for BZX84C7V5_D87Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C7V5_D87Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C7V5_D87Z?
BZX84C7V5_D87Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C7V5_D87Z 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 BZX84C7V5_D87Z?
For technical support, including BZX84C7V5_D87Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C7V5_D87Z requirements.
6.How does Aetrix verify that BZX84C7V5_D87Z is sourced from the original manufacturer or authorized distributors?
All BZX84C7V5_D87Z 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 BZX84C7V5_D87Z meets industry standards.
7.What is the process for return or replacement of BZX84C7V5_D87Z?
All BZX84C7V5_D87Z units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C7V5_D87Z, 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 BZX84C7V5_D87Z part is unused and in its original packaging.
Return procedure for BZX84C7V5_D87Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C7V5_D87Z Tags
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