My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB6.8AHM3_A/H
- Part No.:
- TPSMB6.8AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB6.8AHM3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,375
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB6.8AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 5.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 57.1 V clamping voltage at 57.1 A, and operates up to TJ = +185 °C - deployed in automotive ECUs, industrial sensor interfaces, and telecom power supply protection.
For engineers reviewing the TPSMB6.8AHM3_A/H datasheet, TPSMB6.8AHM3_A/H pinout, TPSMB6.8AHM3_A/H application, or TPSMB6.8AHM3_A/H equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and 10.5 V clamping margin over VWM under 57.1 A surge current.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-reliability operation under repetitive surge stress. Its junction design enables stable VBR drift (αT = 0.047 %/°C) and low incremental surge resistance, ensuring consistent clamping performance across temperature and pulse cycles.
The device is rated for 75 A non-repetitive forward surge (8.3 ms half-sine) and exhibits fast response time (<1 ns) with low capacitance (typ. 1000 pF at VWM). It meets MSL Level 1 per J-STD-020 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified - confirmed by HM3 suffix and ordering code TPSMB6.8AHM3_A/H.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at 10 mA - defines precise voltage threshold where avalanche conduction begins, critical for matching system overvoltage tolerance. |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 500 μA; sets safe operating margin below VBR. |
| VC @ IPPM | 10.5 V at 57.1 A - clamped voltage during 600 W surge (10/1000 µs); determines protected circuit's peak stress level. |
| PPPM | 600 W - peak pulse power handling capability; validates robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| TJ max. | +185 °C - extended junction temperature rating enables use in under-hood automotive and high-ambient industrial environments without derating. |
| Polarity & Package | Unidirectional, SMB (DO-214AA) - standard surface-mount footprint with cathode band marking; compatible with automated SMT assembly and reflow profiles up to 260 °C. |
Pinout & Package
Package: SMB (DO-214AA), molded case meeting UL 94 V-0 flammability rating; matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamping | Connected to ground or lower-potential rail; forms return path for transient current during reverse-biased clamping event. |
| Cathode | Current exit point during reverse-biased avalanche clamping | Connected to protected line (e.g., 5 V rail or CAN_H); conducts surge current to ground when VLINE exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage (<500 μA at VWM) over 15+ years in automotive under-hood conditions. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including HTOL, temperature cycling, and HTRB - required for ECU, ADAS, and body control modules. |
| 185 °C junction temperature rating | Supports operation in engine bay or industrial motor drive enclosures without thermal derating of surge capability. |
| 600 W peak pulse power (10/1000 µs) | Withstands multiple ISO 7637-2 Pulse 5a events (100 V, 500 ms) without degradation when mounted on 5 mm × 5 mm copper pads. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V power supply inputs in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy away from LDO regulators and microcontrollers. Use Value: Maintains VIN ≤ 10.5 V during 57.1 A surge, preventing latch-up or permanent damage to downstream 5 V logic. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter) from ESD and field wiring faults in factory automation. IC Role / Device Role / Timing Role: Fast-response voltage clamp absorbing ±8 kV contact ESD per IEC 61000-4-2 without affecting signal integrity. Use Value: Limits voltage excursion to <11 V during 10/1000 µs transients, preserving 12-bit DAC accuracy and isolator input thresholds. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Line |
Use Scenario: Shielding -48 V telecom rectifier outputs from lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: High-energy clamping element placed upstream of DC-DC converters and hot-swap controllers. Use Value: Dissipates 600 W pulses while holding clamped voltage within 15 % of nominal rail, avoiding brownout or reset triggers. | Use Scenario: Adding secondary surge suppression on 5 V VBUS lines in USB-C docking stations alongside primary protection. IC Role / Device Role / Timing Role: Secondary TVS providing low-clamp redundancy after front-end GDT or polymer PTC. Use Value: Reduces residual clamping voltage to 10.5 V at 57.1 A, lowering stress on USB PD controller and port switch ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same SMB package, 600 W rating, but not AEC-Q101 qualified; VBR min 6.45 V, VC = 11.2 V at 53.3 A | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs. |
| TPSMB6.8AHE3_A/H | Identical electrical specs and SMB package; HE3 suffix indicates RoHS-compliant and AEC-Q101 qualified, but not halogen-free | Same automotive use cases, but material compliance differs (halogen content) | Choose when halogen-free requirement is waived and HE3 availability or pricing is favorable. |
Compared with TPSMB6.8AHM3_A/H, SMBJ6.8A lacks automotive qualification and has higher clamping voltage, while TPSMB6.8AHE3_A/H matches all electrical and qualification specs but omits halogen-free compliance - making HM3 the sole choice when both AEC-Q101 and halogen-free mandates apply.
Availability
TPSMB6.8AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom DC power input protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPSMB6.8AHM3_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, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The TPSMB6.8AHM3_A/H belongs to Vishay's PAR® (Protected Avalanche Rectifier) TVS family, engineered specifically for robust transient suppression in harsh environments where AEC-Q101 qualification, 185 °C operation, and stable clamping are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMB6.8AHM3_A/H at 10 mA test current?
The TPSMB6.8AHM3_A/H has a guaranteed breakdown voltage range of 6.45 V (minimum) to 7.14 V (maximum) at 10 mA test current, with a nominal value of 6.80 V. This range is measured per ANSI/IEEE C62.35 and reflects production lot tolerances. The TPSMB6.8AHM3_A/H maintains this specification across its full operating temperature range, supported by a temperature coefficient of +0.047 %/°C.
Is TPSMB6.8AHM3_A/H qualified for automotive applications?
Yes, TPSMB6.8AHM3_A/H is AEC-Q101 qualified, as confirmed by the HM3 suffix in its ordering code and documentation in Vishay's datasheet (Doc. #88406, Rev. 23-Jan-2024). It undergoes stress testing including high-temperature operating life, temperature cycling, and humidity bias HTRB. The TPSMB6.8AHM3_A/H is intended for use in engine control units, body electronics, and ADAS subsystems where automotive-grade reliability is mandated.
What does the "HM3" suffix mean in TPSMB6.8AHM3_A/H?
The "HM3" suffix in TPSMB6.8AHM3_A/H denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It distinguishes this variant from HE3 (RoHS-compliant and AEC-Q101 qualified but not halogen-free) and standard versions. The TPSMB6.8AHM3_A/H meets JESD201 Class 2 whisker resistance and is rated for peak reflow temperatures up to 260 °C per J-STD-020 MSL Level 1.
What is the clamping voltage of TPSMB6.8AHM3_A/H under maximum surge current?
The TPSMB6.8AHM3_A/H clamps to a maximum of 10.5 V at its peak pulse current of 57.1 A (10/1000 µs waveform). This clamping voltage is measured under standardized test conditions with 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuits during worst-case transients. The TPSMB6.8AHM3_A/H achieves this with low incremental surge resistance, ensuring minimal overshoot beyond VC.
Can TPSMB6.8AHM3_A/H replace older SMBJ6.8A parts in existing designs?
TPSMB6.8AHM3_A/H is not a direct drop-in replacement for SMBJ6.8A due to differences in qualification and clamping behavior: SMBJ6.8A is not AEC-Q101 qualified and has a higher clamping voltage (11.2 V vs. 10.5 V). While both share the SMB (DO-214AA) package and similar VBR, the TPSMB6.8AHM3_A/H requires validation of thermal and surge margin in automotive or high-reliability contexts where SMBJ6.8A was previously used.
TPSMB6.8AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 57.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB6.8AHM3_A/H FAQ
1.How can I place an order for TPSMB6.8AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB6.8AHM3_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 TPSMB6.8AHM3_A/H reliable?
The price and inventory of TPSMB6.8AHM3_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 TPSMB6.8AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB6.8AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB6.8AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB6.8AHM3_A/H?
TPSMB6.8AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB6.8AHM3_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 TPSMB6.8AHM3_A/H?
For technical support, including TPSMB6.8AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB6.8AHM3_A/H requirements.
6.How does Aetrix verify that TPSMB6.8AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB6.8AHM3_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 TPSMB6.8AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB6.8AHM3_A/H?
All TPSMB6.8AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB6.8AHM3_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 TPSMB6.8AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMB6.8AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB6.8AHM3_A/H 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 …
