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Vishay General Semiconductor - Diodes Division TPSMA7.5AHM3_B/H
- Part No.:
- TPSMA7.5AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA7.5AHM3_B/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,646
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Product details
Overview
TPSMA7.5AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching and lightning-induced transients on signal lines and power rails. It features a 7.5 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 11.3 V maximum clamping voltage at 35.4 A, 6.4 V stand-off voltage (VWM), and operates up to +185 °C junction temperature - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the TPSMA7.5AHM3_B/H datasheet, TPSMA7.5AHM3_B/H pinout, TPSMA7.5AHM3_B/H application, or TPSMA7.5AHM3_B/H equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, TJ = 185 °C capability, and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping with low incremental surge resistance and excellent response time (<1 ns). Its unidirectional architecture enables forward-biased operation during overvoltage events while maintaining low leakage (≤150 μA at VWM) at 25 °C and ≤1000 μA at 150 °C.
The device is rated for 40 A non-repetitive peak forward surge current (8.3 ms half-sine), supports 1.0 W steady-state power dissipation, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal design accommodates high-reliability automotive environments via AEC-Q101 qualification and halogen-free, RoHS-compliant construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - ensures reliable triggering above circuit operating voltage while avoiding false trips |
| VWM | 6.40 V - defines maximum continuous reverse voltage before leakage rises significantly |
| VC @ IPPM | 11.3 V - clamping voltage at 35.4 A peak pulse current; limits downstream IC stress during transients |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; supports common surge immunity standards |
| TJ max. | +185 °C - enables use in under-hood automotive and high-temperature industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin leads |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded epoxy body, color band indicating cathode terminal, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VAK exceeds VBR |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR drift < ±5 % over lifetime at TJ = 150 °C |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD per JESD47 |
| MSL Level 1 | Zero floor life limitation; supports standard SMT reflow without dry pack or baking |
| Halogen-free & RoHS | Complies with JEDEC JS709E and EU RoHS Directive 2011/65/EU; no brominated flame retardants |
| Low clamping ratio | VC/VBR = 1.51 - minimizes overvoltage exposure to protected ICs compared to generic TVS diodes |
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 ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to limit transient excursions below IC absolute maximum ratings. Use Value: Enables compliance with AEC-Q100 stress tests and extends field lifetime of sensor modules in 12 V/24 V vehicle architectures. |
Use Scenario: Shielding digital input channels on programmable logic controllers from inductive kickback generated by solenoid valves and relay coils. IC Role / Device Role / Timing Role: Fast-response shunt element that diverts >35 A surge current away from optocoupler input stages and microcontroller GPIO pins. Use Value: Reduces unplanned downtime by preventing latch-up or gate oxide damage during factory automation equipment cycling. |
| Consumer Power Adapter ESD Protection | Telecom Line Interface Surge Suppression |
Use Scenario: Safeguarding USB-C and barrel jack inputs of wall adapters against human-body-model (HBM) ESD and AC-line coupled surges. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail upstream of buck converter ICs and input capacitors. Use Value: Maintains UL 62368-1 compliance with <100 ns response and clamps 8 kV contact discharge to <12 V at the regulator input. |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to induced lightning surges on twisted-pair cabling. IC Role / Device Role / Timing Role: First-stage suppression device mounted directly at RJ-45 connector, referenced to isolated ground plane. Use Value: Achieves ITU-T K.20/21 immunity levels by limiting induced transients to <15 V before secondary protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Same VBR (7.13–7.88 V), but lower PPPM = 400 W (same rating), higher VC = 12.0 V at 32.5 A; not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Select SMAJ7.5A only if AEC-Q101 is not required and board space allows same SMA footprint |
| 1.5SMC7.5A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, VC = 12.9 V at 116 A; AEC-Q101 available in HM3 variant | Requires PCB redesign due to 0.285" × 0.235" footprint vs. SMA's 0.208" × 0.157" | Choose 1.5SMC7.5A when higher surge margin is needed and layout permits larger package |
Compared with SMAJ7.5A and 1.5SMC7.5A, the TPSMA7.5AHM3_B/H delivers identical surge power in a smaller footprint while guaranteeing automotive qualification - making it optimal for space-constrained, high-reliability signal-line protection where AEC-Q101 compliance is mandatory.
Availability
TPSMA7.5AHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter designs requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for TPSMA7.5AHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-temperature performance.
The TPSMA series belongs to Vishay's PAR® (Precision Avalanche Rectifier) TVS platform, engineered specifically for robust transient suppression in automotive, industrial, and telecom infrastructure where long-term stability at elevated junction temperatures is critical.
FAQ
What is the exact breakdown voltage range for TPSMA7.5AHM3_B/H?
The TPSMA7.5AHM3_B/H has a guaranteed breakdown voltage (VBR) range of 7.13 V (minimum) to 7.88 V (maximum) at 10 mA test current, with a nominal value of 7.50 V. This specification is measured per ANSI/IEEE C62.35 and confirmed across production lots per Vishay Document Number 88405, Revision 23-Jan-2024.
Is TPSMA7.5AHM3_B/H AEC-Q101 qualified?
Yes, TPSMA7.5AHM3_B/H is AEC-Q101 qualified. The "HM3" suffix denotes halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). Qualification data is documented in Vishay's certification reports aligned with the TPSMA family.
What does the "B/H" suffix mean in TPSMA7.5AHM3_B/H?
The "B/H" suffix in TPSMA7.5AHM3_B/H indicates packaging configuration: "B" refers to the revision code (Revision B per Vishay's internal change control), and "H" specifies the preferred package code - 7-inch diameter plastic tape and reel containing 1800 units. This matches the ordering information table in Document Number 88405.
Can TPSMA7.5AHM3_B/H replace TPSMA7.5AHE3_B/H in a design?
Yes, TPSMA7.5AHM3_B/H can replace TPSMA7.5AHE3_B/H in most applications because both share identical electrical specifications, SMA (DO-214AC) package, and AEC-Q101 qualification. The only difference is material composition: HM3 is halogen-free whereas HE3 is RoHS-compliant but not halogen-free. No PCB or schematic changes are required.
What is the maximum clamping voltage of TPSMA7.5AHM3_B/H under surge conditions?
The maximum clamping voltage (VC) of TPSMA7.5AHM3_B/H is 11.3 V at 35.4 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Document Number 88405 and reflects worst-case clamping performance across temperature and process variation.
TPSMA7.5AHM3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 35.4A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA7.5AHM3_B/H FAQ
1.How can I place an order for TPSMA7.5AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/H reliable?
The price and inventory of TPSMA7.5AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA7.5AHM3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMA7.5AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA7.5AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA7.5AHM3_B/H?
TPSMA7.5AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/H?
For technical support, including TPSMA7.5AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA7.5AHM3_B/H requirements.
6.How does Aetrix verify that TPSMA7.5AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMA7.5AHM3_B/H?
All TPSMA7.5AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/H part is unused and in its original packaging.
Return procedure for TPSMA7.5AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA7.5AHM3_B/H Tags
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