Vishay General Semiconductor - Diodes Division TGL41-12A-E3/97
- Part No.:
- TGL41-12A-E3/97
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-213AB, MELF
- Datasheet:
-
TGL41-12A-E3/97.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC GL41
- Quantity:
- Payment:

- Shipping:

Inventory:8,451
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Product details
Overview
TGL41-12A-E3/97 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in GL41 (DO-213AB) plastic MELF package, rated for 400 W peak pulse power (10/1000 μs), 11.4–12.6 V breakdown voltage (VBR), and 16.7 V clamping voltage (VC) at 24.0 A peak pulse current - deployed for surge protection on signal lines of industrial sensor units.
For engineers reviewing the TGL41-12A-E3/97 datasheet, TGL41-12A-E3/97 pinout, TGL41-12A-E3/97 application, or TGL41-12A-E3/97 equivalent, key selection criteria include unidirectional polarity, 10.2 V stand-off voltage (VWM), 5.0 μA max reverse leakage, 1.0 W steady-state power dissipation, and compliance with J-STD-020 MSL Level 1.
Technical Context
This TVS diode uses a glass passivated planar junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective clamping of transients induced by inductive load switching or ESD events. Its unidirectional configuration provides forward conduction path during overvoltage while maintaining high impedance under normal bias.
The device operates across -55 °C to +150 °C junction temperature range and is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine). Thermal derating follows Fig. 2 in the datasheet, with power dissipation reduced linearly above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V - ensures reliable triggering above 10.2 V operating voltage without false clamping |
| VWM | 10.2 V - maximum continuous reverse working voltage compatible with 12 V rail systems |
| VC @ IPPM | 16.7 V - clamps transient energy to safe level for downstream 16 V-rated ICs or MOSFETs |
| IPPM | 24.0 A - peak surge current handling capability under standardized 10/1000 μs waveform |
| PPPM | 400 W - transient energy absorption capacity sufficient for IEC 61000-4-5 Level 3 surges |
| IR @ VWM | 5.0 μA - minimal leakage preserves signal integrity and battery life in always-on circuits |
| TJ max | +150 °C - supports operation in high-temperature industrial enclosures without thermal shutdown |
Pinout & Package
GL41 (DO-213AB) plastic MELF package: cylindrical body with solderable matte tin-plated ends; blue band denotes cathode (positive terminal during clamping); no internal leads - terminals are the two metallized end caps.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (blue band end) | Transient current sink during overvoltage | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode (opposite end) | Reference/return path | Typically tied to system ground; completes clamping loop with minimal inductance due to symmetric MELF geometry |
Key Features
| Feature | Design Value |
|---|---|
| Plastic MELF package | Enables high-speed automated placement and reflow compatibility per J-STD-020 MSL Level 1 (250 °C peak) |
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| 400 W peak pulse power | Handles repetitive 10/1000 μs transients at 0.01% duty cycle without degradation |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on protected circuitry compared to higher-ratio suppressors |
| Unidirectional polarity only | Simplifies layout for DC-biased lines; eliminates need for series blocking capacitor |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module Inputs |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation cabinets exposed to relay coil flyback. IC Role / Device Role / Timing Role: TVS diode placed between signal line and ground to clamp inductive spikes before they reach ADC input or op-amp buffer. Use Value: Prevents latch-up or permanent damage to precision signal conditioning ICs by limiting transient voltage to ≤16.7 V. | Use Scenario: Safeguarding microcontroller GPIO pins connected to door lock actuators or window motor switches in 12 V automotive systems. IC Role / Device Role / Timing Role: Unidirectional TVS shunts load-dump and ISO 7637-2 pulse 1/2a transients away from MCU I/O pads. Use Value: Maintains functional safety compliance by ensuring MCU remains operational after 100+ surge events without parameter drift. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Feedback Lines |
Use Scenario: Shielding RS-485 transceiver data lines on base station line cards from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Placed differential-to-ground to suppress common-mode transients while preserving signal integrity up to 10 Mbps. Use Value: Achieves IEC 61000-4-5 4 kV (line-earth) immunity without adding capacitance that degrades edge rate. | Use Scenario: Protecting hall-effect sensor feedback signals in smart washing machine motor control boards subject to brush-commutator noise. IC Role / Device Role / Timing Role: Mounted directly at sensor connector to intercept high-frequency ringing (<100 ns rise time) before coupling into PCB traces. Use Value: Eliminates false zero-crossing detection in BLDC commutation logic caused by sub-10 ns transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| P4SMA12A-E3/97 | Same VBR range (11.4–12.6 V), but lower PPPM = 400 W (same rating), larger SMA package (DO-214AC), higher VC = 19.9 V | Less suitable for space-constrained layouts; higher clamping voltage increases stress on protected ICs | Choose when board-level rework tolerance or manual assembly is required over MELF placement |
| SMAJ12A | Identical electrical specs (VBR, VC, IPPM), same DO-214AC package, but not RoHS-compliant (no -E3 suffix) and lacks JESD201 whisker testing | Not acceptable for commercial-grade production requiring lead-free and whisker-free qualification | Select only for legacy repair or non-RoHS environments where JEDEC whisker compliance is waived |
Compared with P4SMA12A-E3/97 and SMAJ12A, the TGL41-12A-E3/97 offers superior board-area efficiency via MELF packaging, tighter thermal performance (MSL Level 1 vs. MSL Level 1 for P4SMA, unspecified for SMAJ), and guaranteed RoHS/whisker compliance - critical for high-volume automated manufacturing.
Availability
TGL41-12A-E3/97 is available at Aetrix Electronics and suitable for industrial sensor interface protection, automotive body control module inputs, and telecom line card surge protection requiring stable component supply and full traceability.
Supply support for TGL41-12A-E3/97 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with emphasis on reliability-critical applications.
The TGL41 series belongs to Vishay's TRANSZorb® TVS portfolio, engineered specifically for high-energy transient suppression in harsh industrial and automotive environments where compact size and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the TGL41-12A-E3/97 under maximum surge conditions?
The TGL41-12A-E3/97 has a maximum clamping voltage (VC) of 16.7 V at its rated peak pulse current (IPPM) of 24.0 A, measured using the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and ensures protected circuits remain below 17 V during transient events - critical for safeguarding 16 V-tolerant interface ICs.
Is the TGL41-12A-E3/97 suitable for bidirectional signal line protection?
No, the TGL41-12A-E3/97 is unidirectional only, with a blue band marking the cathode. It must be oriented with cathode toward the protected line and anode to ground. For bidirectional AC or differential signal protection, a separate symmetrical TVS array or dual-diode configuration is required - the TGL41-12A-E3/97 does not support reverse-bias clamping.
What is the maximum steady-state power dissipation for the TGL41-12A-E3/97?
The TGL41-12A-E3/97 has a maximum steady-state power dissipation (PD) of 1.0 W when mounted on an infinite heatsink at lead temperature (TL) of 75 °C. Derating is linear above 25 °C ambient, per Figure 5 in the datasheet; at 100 °C ambient, usable PD drops to approximately 0.5 W.
Does the TGL41-12A-E3/97 meet RoHS and lead-free assembly requirements?
Yes, the TGL41-12A-E3/97 carries the -E3 suffix, confirming full RoHS compliance and matte tin-plated leads qualified per J-STD-002 and JESD 22-B102. It also passes JESD 201 Class 1A whisker testing, making it suitable for lead-free reflow processes with peak temperatures up to 250 °C (MSL Level 1).
What is the reverse leakage current specification for the TGL41-12A-E3/97 at its rated stand-off voltage?
At the specified stand-off voltage (VWM) of 10.2 V and ambient temperature of 25 °C, the TGL41-12A-E3/97 exhibits a maximum reverse leakage current (ID) of 5.0 μA. This low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems.
TGL41-12A-E3/97 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-213AB, MELF
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 24A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AB (GL41)
TGL41-12A-E3/97 FAQ
1.How can I place an order for TGL41-12A-E3/97 through Aetrix?
Please submit a Request for Quotation (RFQ) for TGL41-12A-E3/97 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 TGL41-12A-E3/97 reliable?
The price and inventory of TGL41-12A-E3/97 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TGL41-12A-E3/97 is usually 5 days.
3.What payment methods are accepted for TGL41-12A-E3/97?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TGL41-12A-E3/97 transactions.
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4.How is shipping managed for TGL41-12A-E3/97?
TGL41-12A-E3/97 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TGL41-12A-E3/97 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 TGL41-12A-E3/97?
For technical support, including TGL41-12A-E3/97 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TGL41-12A-E3/97 requirements.
6.How does Aetrix verify that TGL41-12A-E3/97 is sourced from the original manufacturer or authorized distributors?
All TGL41-12A-E3/97 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 TGL41-12A-E3/97 meets industry standards.
7.What is the process for return or replacement of TGL41-12A-E3/97?
All TGL41-12A-E3/97 units undergo pre-shipment inspection (PSI). If there is an issue with TGL41-12A-E3/97, 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 TGL41-12A-E3/97 part is unused and in its original packaging.
Return procedure for TGL41-12A-E3/97:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TGL41-12A-E3/97 Tags

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