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Vishay General Semiconductor - Diodes Division BZG04-9V1TR
- Part No.:
- BZG04-9V1TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-9V1TR.pdf
- Description:
- TVS DIODE 9.1VWM 15.7VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,135
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Product details
Overview
BZG04-9V1TR from Vishay Semiconductors is a glass-passivated, lead-free Zener diode designed for transient voltage suppression in high-energy surge environments. It features a nominal standoff voltage of 9.1 V, clamping voltage of 15.7 V at 20.3 A peak pulse current, and 300 W non-repetitive surge power dissipation capability - enabling robust protection in DC power rail and signal line applications.
For engineers reviewing the BZG04-9V1TR datasheet, BZG04-9V1TR pinout, BZG04-9V1TR application, or BZG04-9V1TR equivalent, key selection criteria include its DO-214AC package, 1100 pF junction capacitance at 0 V, ±0.1 %/K temperature coefficient, and validated performance under 10/1000 µs surge pulses per IEC 61000-4-5.
Technical Context
The BZG04-9V1TR operates as a unidirectional voltage-clamping device with a precisely defined Zener breakdown voltage (10.4 V min, 11.4 V max at 50 mA) and fast response time (≤1 ps). Its thermal resistance junction-to-ambient is 125 K/W when mounted on epoxy-glass hard tissue per Figure 1b, supporting reliable operation up to 150 °C junction temperature.
Designed for single-pulse transient suppression, it delivers 15.7 V clamping voltage at 20.3 A peak current (10/1000 µs waveform), with forward voltage of 1.2 V at 0.5 A and junction capacitance of 1100 pF at 0 V - balancing low clamping stress against signal integrity requirements in sensitive analog or digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage | 9.1 V - defines maximum continuous reverse voltage before conduction begins |
| Breakdown Voltage | 10.4–11.4 V @ 50 mA - ensures precise clamping onset within tight tolerance band |
| Clamping Voltage | 15.7 V @ 20.3 A (10/1000 µs) - limits transient overvoltage seen by protected circuitry |
| Junction Capacitance | 1100 pF @ 0 V, 1 MHz - impacts high-frequency signal integrity in data lines |
| Surge Power Rating | 300 W non-repetitive - supports single-event lightning or ESD-level energy absorption |
| Temperature Coefficient | +0.1 %/K - enables stable clamping across industrial temperature range (−65 to +150 °C) |
| Package | DO-214AC (SMA) - surface-mount compatible with standard reflow profiles and IPC-7351B land patterns |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with axial leads trimmed and formed for surface mounting; weight ≈ 77 mg; RoHS-compliant, lead-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased Zener terminal | Connected to protected node; conducts during overvoltage to clamp to VZ |
| Anode | Reference/ground return path | Typically tied to system ground or lower-potential rail to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term Zener voltage and leakage performance under humidity and thermal cycling |
| Fast response time ≤1 ps | Ensures clamping activation before transient energy damages downstream ICs or sensors |
| High reliability rating | Validated for >1000 surge events under specified conditions without parameter shift |
| Lead-free & RoHS compliant | Meets EU Directive 2002/95/EC and WEEE 2002/96/EC for environmentally responsible manufacturing |
Applications
| Industrial Motor Control Inputs | Automotive Body Control Module (BCM) Sensors |
|---|---|
Use Scenario: Protecting 24 V CAN bus sensor inputs from load-dump transients and inductive kickback. IC Role / Device Role / Timing Role: Standby clamping diode placed between sensor signal line and chassis ground. Use Value: Limits transient voltage to ≤15.7 V, preventing damage to 3.3 V or 5 V interface ICs while maintaining <1100 pF loading on signal path. | Use Scenario: Safeguarding LIN bus slave nodes against battery voltage spikes during ignition or alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS element connected anode-to-ground, cathode-to-LIN line. Use Value: Absorbs 300 W surge energy without degradation, preserving signal fidelity due to low 1.2 V forward drop and minimal capacitance. |
| DC Power Supply Input Rails | Programmable Logic Controller (PLC) Digital I/O Modules |
Use Scenario: Secondary overvoltage protection on 12 V auxiliary supply feeding microcontroller peripherals. IC Role / Device Role / Timing Role: Parallel-connected Zener clamp across input capacitor to shunt surges exceeding 9.1 V. Use Value: Provides fail-safe clamping margin below 15 V absolute maximum ratings of downstream regulators and LDOs. | Use Scenario: Input protection for 24 V dry-contact digital inputs exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted directly at connector entry point. Use Value: Withstands 50 A peak forward surge current and maintains stable 9.1 V standoff, ensuring immunity to IEC 61000-4-4 level 4 bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener-based transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Higher clamping voltage (14.4 V min @ 21.5 A), same DO-214AA package, 600 W surge rating | Optimized for higher-energy surges but less precise low-voltage clamping | Select when higher surge margin outweighs tighter voltage control needs |
| P6SMB9.1A | Same 9.1 V standoff, 15.3 V clamping @ 21.1 A, 600 W rating, DO-214AA package | Wider clamping tolerance and higher capacitance (1200 pF) than BZG04-9V1TR | Prefer for cost-sensitive designs where 1100 pF vs. 1200 pF capacitance is not critical |
Compared with SMBJ9.0A and P6SMB9.1A, the BZG04-9V1TR offers tighter breakdown tolerance (10.4–11.4 V), lower junction capacitance (1100 pF), and superior temperature coefficient stability (+0.1 %/K), making it preferred for precision low-voltage rail protection where signal integrity and thermal drift matter.
Availability
BZG04-9V1TR is available at Aetrix Electronics and suitable for industrial motor control inputs, automotive BCM sensors, and DC power supply input rails requiring stable component supply with full traceability and lifecycle management.
Supply support for BZG04-9V1TR 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for industrial, automotive, and computing markets.
The BZG04-Series was engineered specifically for high-surge, low-leakage transient voltage suppression in harsh environments - emphasizing glass passivation, tight Zener tolerances, and repeatable clamping performance across temperature and lifetime.
FAQ
What is the maximum clamping voltage of the BZG04-9V1TR under standard test conditions?
The BZG04-9V1TR has a maximum clamping voltage of 15.7 V when subjected to a 10/1000 µs surge pulse at 20.3 A peak current, as specified in the Vishay BZG04-Series datasheet (Doc. #85594, Rev. 2.2). This value reflects worst-case clamping performance under standardized transient conditions and is critical for verifying safe operating margins in protected circuits. The BZG04-9V1TR maintains this clamping behavior consistently across its rated temperature range.
Does the BZG04-9V1TR meet RoHS and lead-free compliance requirements?
Yes, the BZG04-9V1TR is explicitly certified as lead-free and compliant with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC, as stated in the official Vishay datasheet. Its glass-passivated junction and DO-214AC packaging contain no restricted substances above threshold limits. The BZG04-9V1TR also conforms to Vishay's ozone-depleting substances policy, confirming zero use of Annex A/B Montreal Protocol compounds in manufacturing.
What is the junction-to-ambient thermal resistance (RthJA) for the BZG04-9V1TR in standard mounting configuration?
The BZG04-9V1TR has a junction-to-ambient thermal resistance of 125 K/W when mounted on epoxy-glass hard tissue per Figure 1b in the Vishay datasheet. This value assumes standard PCB layout with copper pour and applies at Tamb = 25 °C. Derating is required above 50 °C ambient, where power dissipation drops to 1.25 W. The BZG04-9V1TR's RthJA directly impacts sustained surge duty cycle capability and thermal safety margin.
Can the BZG04-9V1TR be used for bidirectional transient suppression?
No, the BZG04-9V1TR is a unidirectional Zener diode intended for reverse-bias clamping only. It lacks symmetrical breakdown characteristics and is not rated for bidirectional surge handling. For AC or dual-polarity protection, a dedicated bidirectional TVS like SMAJ9.0CA must be used instead. The BZG04-9V1TR's design and characterization - including clamping voltage, leakage, and surge testing - apply exclusively to single-polarity operation.
What is the typical junction capacitance of the BZG04-9V1TR and how does it affect high-speed signal lines?
The BZG04-9V1TR exhibits a typical junction capacitance of 1100 pF at 0 V and 1 MHz, as measured per the Vishay datasheet. This capacitance introduces signal attenuation and rise-time degradation on high-speed lines - limiting practical use to frequencies below ~10 MHz. For USB, CAN FD, or Ethernet interfaces, lower-capacitance alternatives (<100 pF) are recommended. The BZG04-9V1TR remains suitable for slower digital I/O, sensor analog outputs, and power rail monitoring where bandwidth is not critical.
BZG04-9V1TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- BZG04
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.1V
- Voltage - Breakdown (Min):
- 10.4V
- Voltage - Clamping (Max) @ Ipp:
- 15.7V
- Current - Peak Pulse (10/1000µs):
- 19.1A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1100pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-9V1TR FAQ
1.How can I place an order for BZG04-9V1TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-9V1TR 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 BZG04-9V1TR reliable?
The price and inventory of BZG04-9V1TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-9V1TR is usually 5 days.
3.What payment methods are accepted for BZG04-9V1TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-9V1TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-9V1TR?
BZG04-9V1TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-9V1TR 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 BZG04-9V1TR?
For technical support, including BZG04-9V1TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-9V1TR requirements.
6.How does Aetrix verify that BZG04-9V1TR is sourced from the original manufacturer or authorized distributors?
All BZG04-9V1TR 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 BZG04-9V1TR meets industry standards.
7.What is the process for return or replacement of BZG04-9V1TR?
All BZG04-9V1TR units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-9V1TR, 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 BZG04-9V1TR part is unused and in its original packaging.
Return procedure for BZG04-9V1TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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