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Vishay General Semiconductor - Diodes Division TPSMA11HE3_A/H
- Part No.:
- TPSMA11HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA11HE3_A/H.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,207
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Product details
Overview
TPSMA11HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 11.0 V breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 25.6 V clamping voltage (VC) at 5.0 A peak pulse current, and 400 W peak pulse power with 10/1000 µs waveform - used to protect MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the TPSMA11HE3_A/H datasheet, TPSMA11HE3_A/H pinout, TPSMA11HE3_A/H application, or TPSMA11HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low clamping ratio (VC/VBR = 2.33), and RoHS-compliant matte tin-plated terminals solderable per J-STD-002.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and surge robustness. It delivers 400 W peak pulse power under 10/1000 µs waveform with 0.01 % duty cycle and exhibits 0.067 %/°C temperature coefficient of VBR, enabling predictable clamping behavior across -65 °C to +185 °C operating range.
Designed for automotive-grade reliability, TPSMA11HE3_A/H meets AEC-Q101 qualification and MSL Level 1 (260 °C peak reflow). Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage (<1.0 µA at VWM) at 25 °C and <5.0 µA at 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 V / 11.0 V / 11.6 V - precise breakdown threshold ensures reliable triggering before downstream IC damage |
| VWM | 9.40 V - maximum continuous reverse voltage without significant leakage, compatible with 9 V nominal supply rails |
| VC @ IPPM | 25.6 V - clamps 5.0 A transient to safe level for 3.3 V/5 V logic interfaces and gate drivers |
| PPPM | 400 W - handles high-energy transients from inductive loads like solenoids and motors |
| TJ max. | +185 °C - supports under-hood automotive environments and high-power density PCB layouts |
| Polarity | Unidirectional - enables DC-biased protection with forward conduction during negative surges |
| Package | SMA (DO-214AC) - industry-standard SMT footprint with 0.208" x 0.157" body and cathode band marking |
Pinout & Package
SMA (DO-214AC) package with molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002; cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry during clamping | Connected to protected line's low-side reference; conducts during negative transients |
| Cathode | Reverse-biased terminal during normal operation | Connected to system ground or higher potential rail; defines polarity and clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| Junction passivation | Reduces surface leakage and improves long-term reliability under humid, high-temperature conditions |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak without moisture-induced damage |
| 185 °C TJ capability | Enables placement near heat sources (e.g., power converters) without derating penalties |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector interface to clamp ESD and switching spikes before reaching IC pins. Use Value: Clamps 10/1000 µs transients to ≤25.6 V while maintaining <1.0 µA leakage at 9.4 V, preserving signal integrity in 12 V automotive systems. | Use Scenario: Safeguarding microcontroller GPIOs and optocoupler inputs connected to relay coils and solenoid drivers in PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS shunting inductive kickback energy away from sensitive logic inputs during coil de-energization. Use Value: Withstands 40 A IFSM and 400 W PPPM, enabling robust protection without derating in 24 V industrial control environments. |
| Consumer Power Adapter Outputs | Telecom Line Interface Circuits |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V USB-C PD adapter outputs subject to no-load regulation overshoot and cable insertion transients. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing short-duration surges while remaining non-conductive during normal regulation. Use Value: 9.40 V VWM allows safe operation above 5 V/9 V nominal rails; 25.6 V VC prevents latch-up in downstream USB port controllers. | Use Scenario: Primary protection for Ethernet PHY magnetics and RS-485 transceiver inputs in base station backhaul equipment. IC Role / Device Role / Timing Role: First-stage clamping device on differential pairs to limit common-mode surges induced by lightning or AC coupling faults. Use Value: 0.067 %/°C αT ensures stable VBR across wide ambient ranges; SMA package enables compact layout adjacent to RJ45 jacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Same VBR (10.5–11.6 V), but SMB (DO-214AA) package - 20 % larger footprint, 600 W PPPM | Better suited for higher-energy transients where board space permits larger package | Select SMBJ11A when surge energy exceeds 400 W or thermal dissipation requires larger pad area |
| 1.5SMC11A | Same VBR, but SMC (DO-214AB) package - 30 % larger than SMA, 1500 W PPPM, higher IPPM | Targeted at heavy-duty industrial mains input stages requiring higher robustness margin | Choose 1.5SMC11A for front-end AC/DC protection where PCB layout accommodates larger body size |
Compared with SMBJ11A and 1.5SMC11A, TPSMA11HE3_A/H offers optimal balance of AEC-Q101 qualification, compact SMA footprint, and 400 W capability - making it preferred for space-constrained automotive and portable electronics where qualification and size are critical.
Availability
TPSMA11HE3_A/H is available at Aetrix Electronics and suitable for automotive sensor units, industrial motor drive inputs, and consumer power adapter outputs requiring stable component supply with full traceability and lifecycle management.
Supply support for TPSMA11HE3_A/H 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and high-temperature performance.
The TPSMA series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor family, engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial protection applications.
FAQ
What is the breakdown voltage tolerance for TPSMA11HE3_A/H?
The TPSMA11HE3_A/H has a specified breakdown voltage (VBR) range of 10.5 V (minimum) to 11.6 V (maximum) at 1.0 mA test current, with 11.0 V as the nominal value. This ±5 % tolerance ensures consistent clamping behavior across production lots while allowing design margin for worst-case transient thresholds. The parameter is measured per ANSI/IEEE C62.35 and validated during AEC-Q101 qualification testing.
Is TPSMA11HE3_A/H suitable for bidirectional transient protection?
No, TPSMA11HE3_A/H is unidirectional only, as confirmed in the Vishay datasheet. It conducts in forward bias during negative transients but does not suppress positive-going surges beyond its VWM. For bidirectional protection, a separate device such as the TPSMA11CA (center-tapped, bidirectional variant) or dual-diode configuration is required. Using TPSMA11HE3_A/H in bidirectional circuits may result in inadequate clamping on one polarity.
Does TPSMA11HE3_A/H meet automotive qualification standards?
Yes, TPSMA11HE3_A/H is AEC-Q101 qualified, as explicitly stated in the Vishay document 88405. The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction. Qualification includes stress tests such as high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), confirming suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of TPSMA11HE3_A/H at rated surge current?
The maximum clamping voltage (VC) of TPSMA11HE3_A/H is 25.6 V at 5.0 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and reflects the device's ability to limit transient voltage seen by downstream components. The clamping ratio (VC/VBR) is 2.33, indicating efficient suppression performance relative to its breakdown threshold.
Can TPSMA11HE3_A/H be used in reflow soldering processes?
Yes, TPSMA11HE3_A/H is rated for MSL Level 1 per J-STD-020 and supports lead-free reflow profiles with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 for solderability, and the molding compound meets UL 94 V-0 flammability. No pre-baking is required prior to standard SMT assembly.
TPSMA11HE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 24.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA11HE3_A/H FAQ
1.How can I place an order for TPSMA11HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA11HE3_A/H 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 TPSMA11HE3_A/H reliable?
The price and inventory of TPSMA11HE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA11HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA11HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA11HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA11HE3_A/H?
TPSMA11HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA11HE3_A/H 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 TPSMA11HE3_A/H?
For technical support, including TPSMA11HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA11HE3_A/H requirements.
6.How does Aetrix verify that TPSMA11HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA11HE3_A/H 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 TPSMA11HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA11HE3_A/H?
All TPSMA11HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA11HE3_A/H, 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 TPSMA11HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA11HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA11HE3_A/H Tags
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