My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMA6.8AHE3_A/I
- Part No.:
- TPSMA6.8AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA6.8AHE3_A/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,118
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMA6.8AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and lightning-induced surges on signal lines and power rails. It features a 6.8 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), 10.5 V maximum clamping voltage at 38.1 A, 5.8 V stand-off voltage (VWM), and operates up to +185 °C junction temperature - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the TPSMA6.8AHE3_A/I datasheet, TPSMA6.8AHE3_A/I pinout, TPSMA6.8AHE3_A/I application, or TPSMA6.8AHE3_A/I equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, 10.5 V clamping performance at rated surge current, and thermal derating behavior above 25 °C ambient.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 10/1000 µs waveform response delivers consistent clamping under repetitive surge conditions with 0.01 % duty cycle, and it meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow capability.
The device exhibits a positive temperature coefficient of VBR (+0.047 %/°C), enabling predictable voltage drift over temperature. Its 3.5 V maximum forward voltage at 25 A supports robust forward conduction during bidirectional fault events when paired with complementary devices, though TPSMA6.8AHE3_A/I itself is unidirectional only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V - ensures reliable turn-on before downstream IC damage at nominal operating voltage |
| VWM | 5.8 V - maximum continuous reverse voltage without significant leakage, compatible with 5 V logic and sensor supply rails |
| VC @ IPPM | 10.5 V - clamps transient energy to safe levels for 3.3 V/5 V microcontrollers and analog front-ends |
| PPPM | 400 W - handles automotive load-dump and ISO 7637-2 Pulse 1/2a surges on 12 V systems |
| TJ max. | +185 °C - supports under-hood automotive placement and high-reliability industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; requires external design for bidirectional suppression |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL and temperature cycling |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, cathode indicated by molded band. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), with 2.54 mm lead pitch and matte tin-plated terminals solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line; conducts during positive transients to shunt energy to ground |
| Anode | Cathode of internal PN junction | Typically tied to system ground or lowest potential reference; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Reduces surface leakage and improves long-term reliability under humid, high-bias stress conditions |
| 10/1000 µs waveform rating | Enables direct comparison with ISO 7637-2 and IEC 61000-4-5 surge test profiles |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (< 1 ns rise time) |
| MSL Level 1 | Allows unlimited floor life and single-reflow processing without dry-pack requirements |
| RoHS & halogen-free option | HE3 suffix indicates RoHS-compliant construction; HM3 suffix adds halogen-free molding compound |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ESD events in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to limit transient voltage to ≤10.5 V. Use Value: Prevents latch-up or gate oxide damage in 5 V tolerant transceivers while maintaining signal integrity during normal operation. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback generated by solenoid and relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS (5.8 V) placed across input terminals to absorb 400 W surge energy within 1 ms. Use Value: Eliminates need for external series resistors or RC snubbers, reducing BOM count and PCB footprint. |
| Consumer Power Adapter Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB-C PD controller ICs and voltage monitors in AC/DC adapters subjected to lightning-induced surges on primary-side bias rails. IC Role / Device Role / Timing Role: Primary-side clamping device on 12–24 V auxiliary supply rail, triggered before overvoltage reaches controller VDD pin. Use Value: Maintains adapter certification compliance (UL 62368-1) by limiting transient propagation to <10.5 V at full rated surge current. | Use Scenario: Protecting Ethernet PHY interfaces and PoE injectors from induced surges on RJ45 data pairs in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Discrete unidirectional TVS mounted per pair, referenced to local ground plane with controlled trace impedance. Use Value: Achieves >30 kV ESD contact immunity (IEC 61000-4-2) and 1 kV surge immunity (IEC 61000-4-5) without degrading 100 MHz signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same VBR (6.4–7.14 V), higher PPPM (600 W), larger SMB (DO-214AA) package | Requires larger PCB pad layout; better suited for higher-energy surges where space permits | Select when surge energy exceeds 400 W but board area allows SMB footprint |
| 1.5SMC6.8A | Same VBR, identical PPPM (400 W), larger SMC (DO-214AB) package, higher IFSM (50 A vs. 40 A) | Lower thermal resistance enables longer surge duration handling; not AEC-Q101 qualified | Choose for non-automotive industrial use requiring higher surge repetition tolerance |
Compared with SMBJ6.8A and 1.5SMC6.8A, TPSMA6.8AHE3_A/I offers the smallest footprint (SMA), AEC-Q101 qualification, and optimized thermal performance for high-density automotive modules - making it preferred where space, qualification, and temperature stability are jointly constrained.
Availability
TPSMA6.8AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMA6.8AHE3_A/I 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 operation.
The TPSMA6.8AHE3_A/I belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for automotive-grade surge protection in harsh environments where junction temperatures exceed 150 °C.
FAQ
What is the clamping voltage of TPSMA6.8AHE3_A/I at its rated peak pulse current?
The TPSMA6.8AHE3_A/I has a maximum clamping voltage (VC) of 10.5 V at its rated peak pulse current (IPPM) of 38.1 A, measured using the standard 10/1000 µs waveform. This value ensures that downstream 5 V or 3.3 V ICs remain within absolute maximum ratings during surge events. The clamping performance is guaranteed across the full operating temperature range and is validated per JEDEC test methods.
Is TPSMA6.8AHE3_A/I qualified for automotive applications?
Yes, TPSMA6.8AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. It is rated for operation up to +185 °C junction temperature and passes stress tests including high-temperature operating life (HTOL), temperature cycling, and unbiased highly accelerated stress testing (UHAST).
What does the "HE3" suffix mean in TPSMA6.8AHE3_A/I?
The "HE3" suffix in TPSMA6.8AHE3_A/I indicates RoHS-compliant construction with matte tin-plated leads, JESD201 Class 2 whisker resistance, and AEC-Q101 qualification. The "A/I" portion specifies packaging: 13-inch tape-and-reel with 7500 units per reel. This suffix distinguishes it from HM3 (halogen-free variant) and non-qualified base parts.
Can TPSMA6.8AHE3_A/I be used in bidirectional transient protection circuits?
No, TPSMA6.8AHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It protects against positive-going transients relative to ground. For bidirectional protection, two TPSMA6.8AHE3_A/I devices must be connected in series opposition, or a dedicated bidirectional TVS such as TPSMA6.8CAHE3_A/I should be selected instead.
What is the maximum reverse leakage current of TPSMA6.8AHE3_A/I at its stand-off voltage?
At its 5.8 V stand-off voltage (VWM) and 25 °C ambient, TPSMA6.8AHE3_A/I exhibits a maximum reverse leakage current (IR) of 300 µA. At elevated temperature (TJ = 150 °C), leakage increases to 1000 µA - a value still well within acceptable limits for most low-power sensor and communication interfaces.
TPSMA6.8AHE3_A/I 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 38.1A
- 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)
TPSMA6.8AHE3_A/I FAQ
1.How can I place an order for TPSMA6.8AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA6.8AHE3_A/I 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 TPSMA6.8AHE3_A/I reliable?
The price and inventory of TPSMA6.8AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA6.8AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA6.8AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA6.8AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA6.8AHE3_A/I?
TPSMA6.8AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA6.8AHE3_A/I 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 TPSMA6.8AHE3_A/I?
For technical support, including TPSMA6.8AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA6.8AHE3_A/I requirements.
6.How does Aetrix verify that TPSMA6.8AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA6.8AHE3_A/I 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 TPSMA6.8AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA6.8AHE3_A/I?
All TPSMA6.8AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA6.8AHE3_A/I, 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 TPSMA6.8AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA6.8AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA6.8AHE3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
