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Vishay General Semiconductor - Diodes Division BZG04-82TR3
- Part No.:
- BZG04-82TR3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-82TR3.pdf
- Description:
- TVS DIODE 82VWM 139VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,297
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Product details
Overview
BZG04-82TR3 from Vishay Semiconductors is a glass-passivated, surface-mount Zener diode rated for 82 V standoff voltage, 3 W steady-state power dissipation at 100 °C ambient (with RthJA < 25 K/W), and 300 W non-repetitive surge power handling (10/1000 µs pulse). It delivers clamping voltage of 139 V at 2.2 A peak pulse current and exhibits fast response time ≤ 1 ps, used in transient overvoltage protection circuits for industrial power supplies and DC bus lines.
For engineers reviewing the BZG04-82TR3 datasheet, BZG04-82TR3 pinout, BZG04-82TR3 application, or BZG04-82TR3 equivalent, key selection criteria include its DO-214AC package, 82 V nominal Zener voltage with ±5 % tolerance, 2.2 pF junction capacitance at 0 V, 150 °C maximum junction temperature, and compliance with RoHS 2002/95/EC and WEEE 2002/96/EC directives.
Technical Context
The BZG04-82TR3 operates as a unidirectional voltage-clamping device in reverse-biased mode, leveraging a glass-passivated PN junction to sustain high-energy transients without degradation. Its thermal resistance from junction-to-lead is 25 K/W, enabling efficient heat transfer to PCB copper when mounted per Figure 1b on Al₂O₃ ceramic substrate (RthJA = 100 K/W).
Clamping performance is defined by VCL(R) = 139 V at IPP = 2.2 A (10/1000 µs waveform), with breakdown voltage V(BR) = 94 V min at IR = 5 µA. Temperature coefficient TKVZ = +0.09 %/K ensures predictable voltage drift across operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage | 82 V - nominal reverse blocking voltage before conduction begins |
| Zener Breakdown Voltage | 94 V min at 5 µA - guaranteed minimum clamping threshold under low-current test condition |
| Clamping Voltage | 139 V at 2.2 A (10/1000 µs) - maximum voltage seen during surge event, critical for downstream component protection |
| Junction Capacitance | 2.2 pF at 0 V, 1 MHz - minimal signal loading in high-frequency protection paths |
| Surge Power Rating | 300 W non-repetitive - supports single-event lightning or ESD transients without failure |
| Thermal Resistance J–L | 25 K/W - enables direct thermal path to PCB copper via cathode/anode leads |
| Operating Junction Temp | −65 °C to +150 °C - suitable for under-hood automotive and industrial environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, plastic body with molded cathode band marking. Weight ≈ 77 mg. Compatible with standard reflow profiles per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse bias reference | Connected to lower-potential node in clamping configuration; defines polarity for unidirectional protection |
| Cathode | Forward current exit / Zener conduction terminal | Marked by band; connected to protected line; carries full surge current during clamping |
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 sensitive ICs experience overvoltage stress in nanosecond-scale transients |
| Lead (Pb)-free & RoHS-compliant | Meets global environmental regulations without compromising electrical or thermal performance |
| High reliability construction | Validated for >10⁵ surge cycles under specified conditions, supporting mission-critical industrial systems |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of IGBT gate drivers and DC link sensing circuits against switching-induced voltage spikes in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed across DC bus or gate resistor networks. Use Value: Limits voltage excursions to ≤139 V during 2.2 A surges, preventing gate oxide rupture and false triggering in power stage controllers. | Use Scenario: Input-stage overvoltage clamping in -48 V telecom rectifier modules exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Primary clamping element parallel to bulk input capacitor, activated within picoseconds of transient onset. Use Value: Withstands 300 W surge energy while maintaining 2.2 pF capacitance, avoiding signal integrity degradation in high-speed monitoring circuits. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Load-dump suppression on 12 V supply rails feeding microcontrollers and CAN transceivers in BCMs. IC Role / Device Role / Timing Role: Standby-mode Zener clamp activated only during ISO 7637-2 Pulse 5a events. Use Value: Operates reliably up to 150 °C junction temperature, surviving under-hood thermal environments without derating loss. | Use Scenario: DC-side transient suppression in solar string inverters where PV array voltage can exceed 1000 V under fault conditions. IC Role / Device Role / Timing Role: Secondary clamping device in multi-stage protection network, absorbing residual energy after MOV primary stage. Use Value: Provides precise 82 V threshold with ±5 % tolerance, enabling coordinated staging with upstream 100 V MOVs for optimized energy sharing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode transient protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ82A | Higher clamping voltage (137 V min vs. 139 V typ), same DO-214AA package, 600 W surge rating | Designed for bidirectional TVS use; lacks Zener-specific tight voltage tolerance and low-capacitance optimization | Select SMBJ82A only when higher surge margin is prioritized over low-jitter clamping precision |
| 1N5372B | Through-hole DO-41 package, 82 V Zener, 5 W power, higher junction capacitance (≈5 pF) | Not surface-mount compatible; unsuitable for automated assembly or high-density layouts | Choose 1N5372B only for legacy through-hole designs where rework flexibility outweighs board space and thermal constraints |
Compared with SMBJ82A and 1N5372B, the BZG04-82TR3 offers superior surface-mount thermal management (RthJA = 100 K/W on Al₂O₃), lower capacitance (2.2 pF), and tighter Zener voltage control-making it optimal for high-reliability, space-constrained, and high-frequency-sensitive protection circuits.
Availability
BZG04-82TR3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and renewable energy inverters requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for BZG04-82TR3 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 demanding industrial, automotive, and computing applications.
The BZG04-Series was engineered specifically for high-energy transient suppression in compact SMT form factors, emphasizing glass-passivated stability, low capacitance, and repeatable clamping behavior across temperature and lifetime.
FAQ
What is the maximum clamping voltage of the BZG04-82TR3 during a 10/1000 µs surge?
The BZG04-82TR3 has a maximum clamping voltage of 139 V at 2.2 A peak pulse current under 10/1000 µs waveform conditions. This value is measured per the manufacturer's test methodology and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The BZG04-82TR3 maintains this clamping performance consistently due to its glass-passivated junction and thermally optimized DO-214AC package.
Does the BZG04-82TR3 meet RoHS and lead-free requirements?
Yes, the BZG04-82TR3 is lead (Pb)-free and complies with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC. Vishay confirms that no ozone-depleting substances are used in its manufacture. The BZG04-82TR3 is fully compatible with lead-free reflow soldering processes and meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly.
What is the junction-to-ambient thermal resistance of the BZG04-82TR3 when mounted on an Al₂O₃ ceramic substrate?
When mounted per Figure 1b on aluminum oxide (Al₂O₃) ceramic substrate, the BZG04-82TR3 exhibits a junction-to-ambient thermal resistance (RthJA) of 100 K/W. This value is confirmed in the Vishay datasheet and enables reliable 3 W continuous power dissipation at 100 °C ambient if thermal interface and copper area meet specified layout guidelines. The BZG04-82TR3 leverages this low RthJA for sustained operation in thermally constrained environments.
Can the BZG04-82TR3 be used in bidirectional transient protection applications?
No, the BZG04-82TR3 is a unidirectional Zener diode intended for reverse-bias clamping only. It does not provide symmetrical clamping in both polarities. For bidirectional protection, a pair of BZG04-82TR3 devices in series opposition or a dedicated bidirectional TVS like SMBJ82CA would be required. The BZG04-82TR3's design and characterization are strictly for single-polarity overvoltage suppression.
What is the typical junction capacitance of the BZG04-82TR3 at zero bias?
The typical junction capacitance of the BZG04-82TR3 is 2.2 pF measured at 0 V reverse bias and 1 MHz frequency. This low capacitance minimizes signal distortion and loading in high-speed data lines or RF-adjacent protection paths. The BZG04-82TR3 achieves this value through optimized die geometry and passivation, making it suitable for applications where parasitic capacitance must remain below 3 pF.
BZG04-82TR3 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):
- 82V
- Voltage - Breakdown (Min):
- 94V
- Voltage - Clamping (Max) @ Ipp:
- 139V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 250pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-82TR3 FAQ
1.How can I place an order for BZG04-82TR3 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-82TR3 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 BZG04-82TR3 reliable?
The price and inventory of BZG04-82TR3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-82TR3 is usually 5 days.
3.What payment methods are accepted for BZG04-82TR3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-82TR3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-82TR3?
BZG04-82TR3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-82TR3 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 BZG04-82TR3?
For technical support, including BZG04-82TR3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-82TR3 requirements.
6.How does Aetrix verify that BZG04-82TR3 is sourced from the original manufacturer or authorized distributors?
All BZG04-82TR3 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 BZG04-82TR3 meets industry standards.
7.What is the process for return or replacement of BZG04-82TR3?
All BZG04-82TR3 units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-82TR3, 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 BZG04-82TR3 part is unused and in its original packaging.
Return procedure for BZG04-82TR3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZG04-82TR3 Tags
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