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Vishay General Semiconductor - Diodes Division BZG04-180TR
- Part No.:
- BZG04-180TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-180TR.pdf
- Description:
- TVS DIODE 180VWM 305VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,766
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Product details
Overview
BZG04-180TR from Vishay Semiconductors is a glass-passivated, high-reliability Zener diode designed for transient voltage suppression in power rails and signal lines. It features a 180 V standoff voltage, 305 V clamping voltage at 1 A surge current, 300 W non-repetitive peak surge power (10/1000 µs), and DO-214AC (SMA) package with 77 mg mass - used in industrial power supply overvoltage protection.
For engineers reviewing the BZG04-180TR datasheet, BZG04-180TR pinout, BZG04-180TR application, or BZG04-180TR equivalent, key selection criteria include clamping voltage margin vs. system rail, surge current handling under 10/1000 µs waveform, thermal resistance to PCB pad layout, junction temperature limit of 150 °C, and RoHS-compliant lead-free construction.
Technical Context
The BZG04-180TR operates as a unidirectional voltage-clamping device with a precise 180 V nominal standoff voltage and 208 V minimum breakdown voltage at 2 mA test current. Its fast response time (≤ 1 ps) enables effective suppression of nanosecond-scale transients, while its 300 W surge rating supports IEC 61000-4-5 Level 4 compliance when properly mounted.
Thermal performance depends on PCB layout: RthJA ranges from 100 K/W (Al2O3 ceramic) to 150 K/W (epoxy-glass hard tissue). Junction-to-lead thermal resistance is fixed at 25 K/W, enabling predictable thermal design for repetitive surge duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VR) | 180 V - maximum continuous reverse voltage before conduction begins; defines operating margin above system rail. |
| Clamping Voltage (VCL) | 305 V at IPP = 1 A (10/1000 µs) - peak voltage seen by protected circuit during surge event. |
| Surge Power (PZSM) | 300 W - non-repetitive energy absorption capability; determines survivability under lightning-induced surges. |
| Junction Temp Limit | 150 °C - maximum allowable junction temperature; constrains average power dissipation and PCB copper area. |
| Package | DO-214AC (SMA) - surface-mount outline with 2.5 mm lead spacing; compatible with standard reflow profiles. |
| RoHS Compliance | Lead-free per 2002/95/EC - meets EU directive; no exemption required for Pb content. |
Pinout & Package
DO-214AC (SMA) package: molded epoxy body, axial leads trimmed and formed for surface mounting; case polarity marked by cathode band; weight ≈ 77 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward bias | Connected to lower-potential node (e.g., GND or return path) in clamping configuration. |
| Cathode | Current exit during reverse breakdown | Connected to protected line (e.g., 180 V rail); clamps to anode potential during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable Zener voltage over lifetime and humidity exposure; eliminates need for hermetic sealing. |
| Fast response time ≤ 1 ps | Responds before ESD or fast transients propagate through system traces; critical for data line protection. |
| High surge current rating (50 A IFSM) | Withstands 10 ms half-sine fault currents without bond wire fusing; supports motor drive or relay coil snubbing. |
| Low junction capacitance (131 pF) | Minimizes signal distortion on high-speed lines; suitable for DC power rails but not RF signal paths. |
Applications
| Industrial Power Supply Protection | Motor Drive Snubber Circuit |
|---|---|
Use Scenario: 180 V DC bus in variable-frequency drives exposed to regenerative braking spikes. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed across bus rails to clamp overshoot. Use Value: Limits voltage excursions to ≤305 V, preventing IGBT gate oxide failure and maintaining safe operating area. | Use Scenario: Inductive kickback suppression at MOSFET drain during turn-off in 180 V-rated motor controllers. IC Role / Device Role / Timing Role: Passive clamping diode absorbing stored inductive energy into rail capacitance. Use Value: Reduces voltage stress on switching FETs by 42 % compared to RC snubbers alone; extends MTBF. |
| Telecom Line Interface Protection | Renewable Energy Inverter DC Link |
Use Scenario: Protection of 180 V auxiliary supply feeding telecom base station control logic. IC Role / Device Role / Timing Role: Standby-mode Zener clamp activated only during lightning-induced surges on input feed. Use Value: Maintains <1 µA leakage at 180 V, eliminating standby power penalty while delivering 300 W surge immunity. | Use Scenario: Overvoltage clamping on photovoltaic string inverters with 180 V nominal DC link. IC Role / Device Role / Timing Role: Secondary protection layer downstream of MOVs, triggered after primary clamping threshold exceeded. Use Value: Adds precision clamping at 305 V to complement coarse MOV response; prevents false tripping of DC bus undervoltage lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Higher clamping voltage (324 V), same DO-214AA package, 600 W surge rating | Designed for higher-energy surges; less precise voltage regulation due to higher dynamic impedance | Select when surge energy exceeds 300 W but voltage margin allows 324 V clamping |
| P6SMB180A | Same clamping (324 V), 600 W rating, DO-214AA package, higher leakage (5 µA @ 144 V) | Broader manufacturing tolerance; optimized for cost-sensitive consumer-grade surge protection | Prefer for high-volume production where ±10 % VZ tolerance is acceptable and 324 V clamping is within system margin |
Compared with SMBJ180A and P6SMB180A, the BZG04-180TR offers tighter voltage tolerance (180 V ±0 % nominal, 208 V min), lower clamping (305 V vs. 324 V), and lower leakage (<5 µA @ 144 V), making it preferable for precision 180 V rail protection where voltage headroom is constrained.
Availability
BZG04-180TR is available at Aetrix Electronics and suitable for industrial power supplies, motor drive systems, telecom infrastructure, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZG04-180TR 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 manufacturer of discrete semiconductors and passive components, specializing in high-reliability devices for automotive, industrial, and computing markets.
The BZG04-Series was engineered specifically for high-energy transient suppression in DC power systems, emphasizing low clamping voltage, repeatable surge endurance, and stable parametric performance across temperature and lifetime.
FAQ
What is the exact standoff voltage specification for BZG04-180TR?
The BZG04-180TR has a nominal standoff voltage (VR) of 180 V, defined as the maximum DC reverse voltage at which leakage remains ≤5 µA. This value is guaranteed per the Vishay datasheet Document Number 85594 Rev. 2.2, with a minimum breakdown voltage (VBR) of 208 V at IZ = 2 mA. The part number suffix "180" directly denotes this 180 V rating.
Does BZG04-180TR meet RoHS and lead-free requirements?
Yes, BZG04-180TR is lead (Pb)-free and compliant with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC. Vishay explicitly states this in the "Features" section of the official datasheet (Document No. 85594), and confirms no ozone-depleting substances were used in manufacturing.
What is the maximum clamping voltage of BZG04-180TR under surge conditions?
The BZG04-180TR clamps to a maximum of 305 V when subjected to a 1 A peak pulse current with a 10/1000 µs waveform, as specified in the Electrical Characteristics table. This clamping voltage defines the upper voltage limit imposed on protected circuits during transient events.
Can BZG04-180TR be used in surface-mount reflow assembly?
Yes, BZG04-180TR uses the DO-214AC (SMA) package, which is qualified for standard lead-free reflow soldering per J-STD-020. Its epoxy body and tinned leads support peak temperatures up to 260 °C, and the 77 mg mass ensures consistent thermal profile response across production lots.
What thermal resistance values apply to BZG04-180TR in PCB layout design?
For BZG04-180TR, junction-to-ambient thermal resistance (RthJA) varies with PCB construction: 150 K/W on epoxy-glass hard tissue (Fig. 1a), 125 K/W on same material with improved copper (Fig. 1b), and 100 K/W on Al2O3 ceramic. Junction-to-lead resistance is fixed at 25 K/W, enabling accurate thermal modeling for surge duty cycles.
BZG04-180TR 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):
- 180V
- Voltage - Breakdown (Min):
- 208V
- Voltage - Clamping (Max) @ Ipp:
- 305V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 131pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-180TR FAQ
1.How can I place an order for BZG04-180TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-180TR 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 BZG04-180TR reliable?
The price and inventory of BZG04-180TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-180TR is usually 5 days.
3.What payment methods are accepted for BZG04-180TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-180TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-180TR?
BZG04-180TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-180TR 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 BZG04-180TR?
For technical support, including BZG04-180TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-180TR requirements.
6.How does Aetrix verify that BZG04-180TR is sourced from the original manufacturer or authorized distributors?
All BZG04-180TR 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 BZG04-180TR meets industry standards.
7.What is the process for return or replacement of BZG04-180TR?
All BZG04-180TR units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-180TR, 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 BZG04-180TR part is unused and in its original packaging.
Return procedure for BZG04-180TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZG04-180TR Tags
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