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Vishay General Semiconductor - Diodes Division TPSMA11AHE3/61T
- Part No.:
- TPSMA11AHE3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA11AHE3/61T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,176
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Product details
Overview
TPSMA11AHE3/61T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power and signal lines. It features a 11.0 V nominal breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 25.6 V maximum clamping voltage (VC) at 5.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the TPSMA11AHE3/61T datasheet, TPSMA11AHE3/61T pinout, TPSMA11AHE3/61T application, or TPSMA11AHE3/61T equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, 1.0 µA max reverse leakage at VWM, AEC-Q101 qualification status, and thermal derating behavior above 25 °C ambient.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under high-temperature stress (TJ = 185 °C). Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients without compromising forward conduction integrity.
The device is rated for 40 A non-repetitive peak forward surge current (IFSM) and exhibits a typical VBR temperature coefficient of +0.067 %/°C - enabling predictable voltage shift across automotive-grade thermal ranges. It meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 V / 11.0 V / 11.6 V - ensures reliable turn-on before downstream IC damage threshold |
| VWM | 9.40 V - maximum continuous reverse voltage without significant leakage |
| VC @ IPPM = 5.0 A | 25.6 V - clamped voltage during 10/1000 µs surge, limiting stress on protected circuitry |
| PPPM | 400 W - peak transient energy absorption capability under standard waveform |
| IR @ VWM, TJ = 150 °C | 1.0 µA - ultra-low leakage preserves signal integrity in high-impedance sensor paths |
| TJ max. | +185 °C - supports under-hood automotive and industrial environments without derating loss |
| Package | SMA (DO-214AC) - industry-standard SMD footprint with 0.2" × 0.2" copper pad requirement |
Pinout & Package
TPSMA11AHE3/61T is housed in an SMA (DO-214AC) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode - no internal connections or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to ground or low-impedance return path to shunt surge energy away from protected node |
| Anode | Protected line connection | Connected in parallel to sensitive input/output lines (e.g., CAN bus, sensor supply, MCU I/O) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and ESD |
| Junction passivation optimized design | Reduces parameter drift and leakage increase after thermal cycling and humidity exposure |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn effect or delamination risk |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| Unidirectional polarity only | Suitable for DC-biased lines where reverse conduction must be blocked during normal operation |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature (ECT) sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤25.6 V during 400 W surges, preventing ADC saturation and latch-up while maintaining <1.0 µA leakage at 9.4 V bias. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced transients. IC Role / Device Role / Timing Role: Parallel-connected TVS on each optocoupler input stage to absorb inductive kickback from solenoid drivers. Use Value: Clamps 10/1000 µs surges to 25.6 V within nanoseconds, preserving optocoupler CTR stability and enabling >100 k-cycle reliability under repetitive stress. |
| Telecom Power Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary-side overvoltage protection on 12 V telecom power distribution boards near PoE injectors. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC-DC converter output rail to suppress coupling from adjacent AC/DC stages. Use Value: Withstands 185 °C junction temperature and maintains 9.4 V VWM margin over full operating range, eliminating thermal runaway risk in enclosed enclosures. |
Use Scenario: Low-capacitance transient suppression on USB 2.0 D+/D− lines in portable media players. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp referenced to VBUS, leveraging low VF (3.5 V @ 25 A) for minimal forward drop during fault. Use Value: Delivers 25.6 V clamping at 5 A with <1 ns response, meeting IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) without signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same SMA package, 11 V VBR, but lower PPPM = 400 W (same rating), higher VC = 18.2 V @ 22.5 A - different test current basis | Designed for general-purpose industrial use; not AEC-Q101 qualified | Select when automotive qualification is unnecessary and cost sensitivity outweighs long-term reliability validation |
| 1.5SMC11A | Larger SMC (DO-214AB) package, identical VBR/VC specs, same PPPM, but higher IFSM = 100 A and higher thermal mass | Better suited for high-energy surge environments (e.g., outdoor telecom cabinets) where PCB space allows larger footprint | Choose when board layout permits SMC and system-level surge testing exceeds IEC 61000-4-5 Level 4 |
Compared with SMAJ11A and 1.5SMC11A, TPSMA11AHE3/61T uniquely combines AEC-Q101 qualification, MSL Level 1 reflow compatibility, and 185 °C junction rating in the compact SMA outline - making it optimal for space-constrained, thermally aggressive automotive and industrial edge nodes.
Availability
TPSMA11AHE3/61T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom power distribution systems requiring stable component supply with guaranteed AEC-Q101 compliance and high-temperature operational continuity.
Supply support for TPSMA11AHE3/61T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-temperature performance.
The TPSMA11AHE3/61T belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for robust electrostatic and surge protection in automotive, industrial, and harsh-environment electronics.
FAQ
What is the AEC-Q101 qualification status of TPSMA11AHE3/61T?
TPSMA11AHE3/61T is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - validating its suitability for automotive powertrain and body electronics applications.
Does TPSMA11AHE3/61T support lead-free reflow soldering?
Yes, TPSMA11AHE3/61T meets MSL Level 1 per J-STD-020 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing - ensuring reliable solder joint formation without voiding or intermetallic growth concerns.
What is the maximum clamping voltage of TPSMA11AHE3/61T under surge conditions?
The maximum clamping voltage (VC) of TPSMA11AHE3/61T is 25.6 V when subjected to a 10/1000 µs waveform at 5.0 A peak pulse current (IPPM). This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the temperature coefficient affect TPSMA11AHE3/61T's breakdown voltage?
TPSMA11AHE3/61T has a typical VBR temperature coefficient (αT) of +0.067 %/°C. This means its breakdown voltage increases linearly with junction temperature - e.g., at 150 °C, VBR rises ~8.4% above its 25 °C value (11.0 V), reaching approximately 11.9 V - a critical factor in thermal design margining for under-hood applications.
Is TPSMA11AHE3/61T suitable for bidirectional signal line protection?
No, TPSMA11AHE3/61T is unidirectional only, with cathode marked by a band and intended for DC-biased lines. It does not conduct in reverse beyond VWM; therefore, it cannot protect AC or bipolar signal paths like RS-485 or audio lines. For such applications, a bidirectional variant (e.g., TPSMA11CA) or dual-diode configuration is required - TPSMA11AHE3/61T must not be substituted without circuit review.
TPSMA11AHE3/61T 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.6A
- 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)
TPSMA11AHE3/61T FAQ
1.How can I place an order for TPSMA11AHE3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA11AHE3/61T 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 TPSMA11AHE3/61T reliable?
The price and inventory of TPSMA11AHE3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA11AHE3/61T is usually 5 days.
3.What payment methods are accepted for TPSMA11AHE3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA11AHE3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA11AHE3/61T?
TPSMA11AHE3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA11AHE3/61T 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 TPSMA11AHE3/61T?
For technical support, including TPSMA11AHE3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA11AHE3/61T requirements.
6.How does Aetrix verify that TPSMA11AHE3/61T is sourced from the original manufacturer or authorized distributors?
All TPSMA11AHE3/61T 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 TPSMA11AHE3/61T meets industry standards.
7.What is the process for return or replacement of TPSMA11AHE3/61T?
All TPSMA11AHE3/61T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA11AHE3/61T, 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 TPSMA11AHE3/61T part is unused and in its original packaging.
Return procedure for TPSMA11AHE3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA11AHE3/61T Tags
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