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Vishay General Semiconductor - Diodes Division BZG04-220TR
- Part No.:
- BZG04-220TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-220TR.pdf
- Description:
- TVS DIODE 220VWM 380VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,607
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Product details
Overview
BZG04-220TR from Vishay Semiconductors is a glass-passivated, surface-mount Zener diode designed for high-energy transient voltage suppression in power rails and signal lines. It features a 220 V standoff voltage, 380 V clamping voltage at 0.8 A peak pulse current, 300 W non-repetitive surge power rating, and DO-214AC (SMA) package for industrial-grade ESD and lightning surge protection.
For engineers reviewing the BZG04-220TR datasheet, BZG04-220TR pinout, BZG04-220TR application, or BZG04-220TR equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, thermal resistance under PCB copper layout constraints, surge current handling in 10/1000 µs waveform, and RoHS-compliant lead-free termination for automated assembly.
Technical Context
The BZG04-220TR operates as a unidirectional avalanche clamp with precise breakdown voltage tolerance (±5 %), leveraging glass-passivated junction technology for stable leakage performance and long-term reliability under repeated transients. Its fast response time (≤1 ps) ensures sub-nanosecond turn-on during voltage spikes.
Thermal design relies on junction-to-lead resistance of 25 K/W and junction-to-ambient resistance of 100–150 K/W depending on PCB mounting - critical for sustaining 300 W surge pulses without thermal runaway when mounted on Al2O3 ceramic or epoxy-glass substrates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VR) | 220 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| Clamping Voltage (VCL) | 380 V at IPP = 0.8 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines minimum required insulation clearance. |
| Surge Power Rating | 300 W non-repetitive - Sustains single high-energy transients such as IEC 61000-4-5 Level 4 surges without failure. |
| Junction Temperature | 150 °C max - Sets upper limit for thermal design; requires PCB copper area or heatsinking to maintain safe Tj under pulsed load. |
| Package | DO-214AC (SMA) - Standard surface-mount outline with 2.5 mm lead pitch; compatible with reflow soldering and automated pick-and-place. |
| RoHS Compliance | Lead-free, compliant with Directive 2002/95/EC - Meets global environmental requirements for commercial and industrial electronics. |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with axial leads trimmed and formed for surface-mount use; approx. 77 mg weight; standard tape-and-reel packaging (TR = 1.5 k per 7" reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side transient clamp node | Connected to protected line (e.g., DC bus or signal trace); conducts avalanche current during overvoltage events. |
| Anode | Reference/ground return path | Must be tied to low-impedance ground plane or chassis to ensure effective clamping; routing inductance directly impacts VCL overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable leakage current (<5 µA at 220 V) and immunity to humidity-induced parameter drift over 10+ year field life. |
| Fast response time ≤1 ps | Minimizes voltage overshoot during nanosecond-scale transients (e.g., ESD), reducing risk of gate oxide damage in downstream MOSFETs or ICs. |
| 300 W surge power rating | Supports IEC 61000-4-5 combination wave testing up to 4 kV open-circuit / 2 kA short-circuit without degradation. |
| DO-214AC package | Provides mechanical robustness and thermal path efficiency superior to DO-41 or SOD-123; enables >1.25 W steady-state dissipation with proper PCB copper. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: DC bus overvoltage protection in variable-frequency drives subjected to regenerative braking spikes and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed across +400 V DC bus and ground. Use Value: Clamps 380 V at 0.8 A to prevent IGBT gate driver latch-up and bus capacitor overvoltage failure during 300 W surge events. | Use Scenario: Secondary-side output rail protection in -48 V telecom rectifiers exposed to induced surges from nearby AC mains or antenna coupling. IC Role / Device Role / Timing Role: Standoff-rated Zener clamp on -48 V output, referenced to system ground. Use Value: Maintains 220 V standoff while clamping to 380 V, ensuring compatibility with telecom-grade 300 V isolation barriers and UL 60950 creepage requirements. |
| Renewable Energy Inverters | Automotive Battery Management Systems |
Use Scenario: PV string overvoltage suppression in solar inverters where open-circuit voltage can exceed 1000 V under cold conditions. IC Role / Device Role / Timing Role: Cascaded Zener clamp stage limiting intermediate DC link voltage excursions. Use Value: Provides predictable 380 V clamping ceiling with ±5 % VZ tolerance, enabling accurate sizing of downstream TVS arrays and snubbers. | Use Scenario: 12 V battery rail protection in EV BMS modules against load-dump transients per ISO 7637-2 Pulse 5a (110 V, 100 ms). IC Role / Device Role / Timing Role: High-energy Zener clamp on main battery input, upstream of DC-DC converters. Use Value: Absorbs 300 W surge energy without thermal runaway, validated for 150 °C junction operation under sustained ambient temperatures up to 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | Higher clamping voltage (391 V), same DO-214AA package, lower surge rating (200 W) | Limited to lower-energy surges; less margin for IEC 61000-4-5 Level 4 compliance | Select SMBJ220A only if board space allows larger DO-214AA footprint and surge requirement is ≤200 W. |
| P6SMB220A | Same 220 V standoff, but higher clamping (418 V), 600 W surge rating, DO-214AA package | Requires derating for thermal management due to higher RthJA (160 K/W vs. 100–150 K/W) | Choose P6SMB220A when higher surge headroom is needed and PCB copper area supports higher thermal resistance. |
Compared with SMBJ220A and P6SMB220A, the BZG04-220TR delivers tighter clamping (380 V), lower thermal resistance (100 K/W on Al2O3), and optimized DO-214AC footprint - making it preferred for space-constrained, thermally demanding industrial designs requiring precise voltage limiting.
Availability
BZG04-220TR is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, renewable energy inverters, and automotive battery management systems requiring stable component supply with full traceability and long-lifecycle support.
Supply support for BZG04-220TR 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 passive and active components for industrial, automotive, and computing applications.
The BZG04-Series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing glass-passivated stability, tight voltage tolerance, and robust surge survivability in surface-mount form factors.
FAQ
What is the maximum clamping voltage of the BZG04-220TR under standard test conditions?
The BZG04-220TR has a maximum clamping voltage of 380 V when subjected to a 10/1000 µs surge pulse at IPP = 0.8 A, as specified in the Vishay BZG04-Series datasheet (Doc. #85594, Rev. 2.2). This value is measured at Tj = 25 °C and defines the upper voltage limit imposed on protected circuits during transient events. The BZG04-220TR maintains this clamping performance consistently due to its glass-passivated junction and controlled Zener breakdown characteristics.
Is the BZG04-220TR suitable for bidirectional transient suppression?
No, the BZG04-220TR is a unidirectional Zener diode intended for single-polarity clamping - cathode connected to the protected line, anode to ground. It does not provide symmetrical clamping for AC or bipolar transients. For bidirectional protection, two BZG04-220TR devices must be used in series opposition, or a dedicated bidirectional TVS like SMAJ220A should be selected. The BZG04-220TR's electrical specifications and package marking confirm its unidirectional functionality.
What is the junction-to-ambient thermal resistance (RthJA) of the BZG04-220TR under typical PCB mounting?
The BZG04-220TR exhibits RthJA = 100 K/W when mounted on an Al2O3 ceramic substrate (per Fig. 1b), 125 K/W on epoxy-glass hard tissue with extended copper, and 150 K/W on minimal copper. These values are critical for calculating junction temperature rise during surge events. The BZG04-220TR's low RthJA enables reliable 300 W pulse handling without exceeding the 150 °C maximum junction temperature, provided appropriate PCB thermal design is implemented.
Does the BZG04-220TR meet RoHS and lead-free assembly requirements?
Yes, the BZG04-220TR is lead (Pb)-free and fully compliant with RoHS Directive 2002/95/EC and WEEE 2002/96/EC, as confirmed in the Vishay BZG04-Series datasheet. Its termination is compatible with standard SnAgCu reflow profiles (JEDEC J-STD-020), and the device undergoes no post-soldering cleaning. The BZG04-220TR's RoHS compliance is verified through material declarations and third-party testing, supporting environmentally regulated industrial and consumer deployments.
How does the BZG04-220TR's 220 V standoff voltage relate to its breakdown and clamping behavior?
The 220 V standoff voltage (VR) is the maximum DC reverse voltage at which leakage remains ≤5 µA; breakdown occurs at V(BR) = 251 V (min) per datasheet, with tight ±5 % tolerance. Clamping initiates near breakdown and stabilizes at 380 V under surge. This three-tier voltage relationship - standoff < breakdown < clamping - ensures the BZG04-220TR remains inactive during normal operation yet responds predictably during overvoltage events. The BZG04-220TR's defined VR and V(BR) enable precise system-level margin analysis.
BZG04-220TR 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):
- 220V
- Voltage - Breakdown (Min):
- 251V
- Voltage - Clamping (Max) @ Ipp:
- 380V
- Current - Peak Pulse (10/1000µs):
- 800mA
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 120pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-220TR FAQ
1.How can I place an order for BZG04-220TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-220TR 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 BZG04-220TR reliable?
The price and inventory of BZG04-220TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-220TR is usually 5 days.
3.What payment methods are accepted for BZG04-220TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-220TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-220TR?
BZG04-220TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-220TR 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 BZG04-220TR?
For technical support, including BZG04-220TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-220TR requirements.
6.How does Aetrix verify that BZG04-220TR is sourced from the original manufacturer or authorized distributors?
All BZG04-220TR 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 BZG04-220TR meets industry standards.
7.What is the process for return or replacement of BZG04-220TR?
All BZG04-220TR units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-220TR, 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 BZG04-220TR part is unused and in its original packaging.
Return procedure for BZG04-220TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZG04-220TR Tags
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