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Vishay General Semiconductor - Diodes Division BZG04-11TR
- Part No.:
- BZG04-11TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-11TR.pdf
- Description:
- TVS DIODE 11VWM 18.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,190
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Product details
Overview
BZG04-11TR from Vishay Semiconductors is a glass-passivated Zener diode designed for transient voltage suppression in power and signal lines, with a nominal standoff voltage of 11 V, 3 W steady-state power dissipation at 100 °C ambient (RthJA < 25 K/W), 300 W non-repetitive peak surge power (10/1000 µs), clamping voltage of 18.9 V at 15.9 A, and DO-214AC package. It protects DC power rails in industrial motor drives.
For engineers reviewing the BZG04-11TR datasheet, BZG04-11TR pinout, BZG04-11TR application, or BZG04-11TR equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, surge current handling under IEC 61000-4-5 Level 4, thermal resistance to PCB copper area, and RoHS-compliant lead-free construction.
Technical Context
The BZG04-11TR operates as a unidirectional voltage-clamping device, leveraging avalanche breakdown at precisely defined reverse-bias conditions. Its glass-passivated junction ensures stable Zener voltage tolerance (±5 %) and low leakage (IR ≤ 5 µA at VR = 11 V), while fast response time (≤1 ps) enables effective suppression of nanosecond-scale transients.
Thermal design relies on mounting to epoxy-glass PCB (RthJA = 125–150 K/W) or Al₂O₃ ceramic (RthJA = 100 K/W); junction-to-lead thermal resistance is fixed at 25 K/W. The device sustains 50 A peak forward surge current (10 ms half-sine) and operates up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage | 11 V - Maximum continuous reverse voltage before conduction begins; sets protection threshold for 12 V nominal systems. |
| Clamping Voltage | 18.9 V @ 15.9 A - Peak voltage seen by protected circuit during 10/1000 µs surge; must remain below downstream IC absolute maximum rating. |
| Surge Power | 300 W - Withstands IEC 61000-4-5 combination wave (2 Ω source) without degradation when properly heatsinked. |
| Power Dissipation | 3 W @ Tamb = 100 °C (RthJA < 25 K/W) - Requires minimum 100 mm² 2-oz copper pad for full-rated operation. |
| Junction Temp Limit | 150 °C - Enables use in under-hood automotive or industrial enclosures without derating below 100 °C ambient. |
| Package | DO-214AC (SMA) - Standard surface-mount outline with 2.54 mm lead spacing; compatible with automated reflow (J-STD-020D). |
Pinout & Package
DO-214AC (SMA) package: molded epoxy body, cathode band marked, leads tinned for solderability, weight ≈ 77 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping event. |
| Cathode | Reverse-bias terminal / Clamping node | Connected to protected line (e.g., 12 V rail); voltage clamps to 18.9 V when transient exceeds 11 V standoff. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables ±5 % Zener voltage tolerance and IR ≤ 5 µA at VR, ensuring predictable turn-on and low standby leakage in battery-powered systems. |
| 300 W surge rating (10/1000 µs) | Meets IEC 61000-4-5 Level 4 (4 kV line-earth) without external series impedance in low-inductance layouts. |
| Fast response time ≤ 1 ps | Clamps ESD and lightning-induced transients before sensitive logic or analog circuits experience overvoltage stress. |
| RoHS-compliant, lead-free | Meets EU Directive 2002/95/EC and WEEE 2002/96/EC; suitable for consumer, industrial, and automotive production without exemption requests. |
Applications
| Industrial Motor Drive DC Bus Protection | Automotive Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 60 V, 400 ms) and alternator ripple on 12 V DC bus feeding motor gate drivers and MCU power supplies. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between +12 V rail and chassis ground, activated only during overvoltage events. Use Value: Limits rail voltage to 18.9 V during 15.9 A surge, protecting 20 V-rated buck converters and 5 V LDOs downstream. | Use Scenario: Guards BCM microcontroller power input against jump-start surges (24 V applied to 12 V system) and ISO 7637-2 pulse 1/2/5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 12 V supply line, coordinated with upstream fuse and downstream TVS array. Use Value: Clamps 24 V jump-start spike to ≤18.9 V within 1 ps, preventing latch-up or permanent damage to 5 V regulator ICs. |
| Telecom Power Shelf Transient Suppression | Programmable Logic Controller (PLC) Digital I/O Protection |
Use Scenario: Protects -48 V telecom power distribution boards from induced surges during lightning strikes on nearby cables. IC Role / Device Role / Timing Role: Reverse-connected across -48 V rail and return, conducting only during positive-going transients exceeding 11 V magnitude. Use Value: Delivers 300 W surge handling without derating, enabling single-device protection per rail segment instead of stacked arrays. | Use Scenario: Shields 24 V digital input channels on PLC backplanes from field-wiring ESD and inductive kickback from solenoid loads. IC Role / Device Role / Timing Role: Shunt clamp mounted at connector entry point, with series 100 Ω resistor limiting peak current into protected Schmitt trigger input. Use Value: Maintains 11 V standoff to avoid false triggering during normal 24 V high-state operation while clamping 1 kV ESD to safe levels. |
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 |
|---|---|---|---|
| SMBJ11A | Higher clamping voltage (18.2 V @ 17.3 A), same DO-214AA package, lower surge rating (600 W vs. 300 W), bidirectional option available | Designed for higher-energy transients; requires larger PCB footprint due to wider body | Select SMBJ11A only when >300 W surge margin is required and board space allows DO-214AA |
| P6KE11A | Higher clamping voltage (18.2 V @ 17.3 A), axial-leaded DO-15 package, 600 W surge rating, slower response (~1 ns) | Requires through-hole assembly; unsuitable for high-density SMT designs | Choose P6KE11A only for legacy through-hole systems where rework tolerance and manual assembly are priorities |
Compared with SMBJ11A and P6KE11A, the BZG04-11TR offers tighter Zener tolerance (±5 % vs. ±10 %), faster response (≤1 ps vs. ~1 ns), and smaller DO-214AC footprint-making it optimal for space-constrained, high-reliability SMT applications requiring precise clamping thresholds.
Availability
BZG04-11TR is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power shelves, and programmable logic controller I/O protection requiring stable component supply and RoHS-compliant manufacturing.
Supply support for BZG04-11TR 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 robust transient voltage suppression in harsh environments, emphasizing stable Zener characteristics, high surge survivability, and compatibility with automated SMT assembly processes.
FAQ
What is the Zener voltage tolerance for the BZG04-11TR?
The BZG04-11TR has a Zener breakdown voltage of 12.4 V minimum and 13.8 V maximum at test current IZT = 50 mA, corresponding to a ±5.5 % tolerance about the nominal 11 V standoff voltage. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage margining in safety-critical designs.
Can the BZG04-11TR be used in bidirectional transient protection circuits?
No, the BZG04-11TR is a unidirectional Zener diode intended for single-polarity clamping. It conducts only when reverse-biased above its 11 V standoff; forward conduction occurs at ~1.2 V. For bidirectional protection (e.g., AC lines or differential data), two BZG04-11TR devices must be connected anode-to-anode or a dedicated bidirectional TVS like SMBJ11CA should be selected.
What is the maximum allowable PCB copper area for thermal performance of the BZG04-11TR?
To achieve the full 3 W power dissipation rating at 100 °C ambient, the BZG04-11TR requires RthJA < 25 K/W, which demands ≥100 mm² of 2-ounce copper connected directly to both leads. Smaller pads increase thermal resistance-e.g., 25 mm² raises RthJA to ~150 K/W, limiting usable power to 1.25 W at 50 °C ambient.
Does the BZG04-11TR meet IEC 61000-4-5 surge immunity requirements?
Yes, the BZG04-11TR's 300 W non-repetitive surge power rating (10/1000 µs waveform) supports compliance with IEC 61000-4-5 Level 4 (4 kV line-earth, 2 Ω source impedance) when mounted on adequate copper and integrated into a low-inductance layout. System-level validation remains essential, but the BZG04-11TR provides the core clamping capability.
Is the BZG04-11TR suitable for automotive under-hood applications?
Yes, the BZG04-11TR is rated for junction temperatures up to 150 °C and meets RoHS requirements, making it suitable for under-hood automotive applications such as body control modules and engine control peripherals-provided PCB thermal design maintains Tj ≤ 150 °C during worst-case surge events and ambient conditions.
BZG04-11TR 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):
- 11V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.9V
- Current - Peak Pulse (10/1000µs):
- 15.9A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 850pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-11TR FAQ
1.How can I place an order for BZG04-11TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-11TR 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 BZG04-11TR reliable?
The price and inventory of BZG04-11TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-11TR is usually 5 days.
3.What payment methods are accepted for BZG04-11TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-11TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-11TR?
BZG04-11TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-11TR 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 BZG04-11TR?
For technical support, including BZG04-11TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-11TR requirements.
6.How does Aetrix verify that BZG04-11TR is sourced from the original manufacturer or authorized distributors?
All BZG04-11TR 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 BZG04-11TR meets industry standards.
7.What is the process for return or replacement of BZG04-11TR?
All BZG04-11TR units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-11TR, 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 BZG04-11TR part is unused and in its original packaging.
Return procedure for BZG04-11TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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