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Vishay General Semiconductor - Diodes Division TPSMB7.5AHE3_A/H
- Part No.:
- TPSMB7.5AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB7.5AHE3_A/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,380
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Product details
Overview
TPSMB7.5AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 11.3 V maximum clamping voltage at 53.1 A, and operates up to +185 °C junction temperature - suitable for automotive power supply protection in engine control units and body electronics.
For engineers reviewing the TPSMB7.5AHE3_A/H datasheet, TPSMB7.5AHE3_A/H pinout, TPSMB7.5AHE3_A/H application, or TPSMB7.5AHE3_A/H equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.51), and thermal stability under high-reliability automotive operating conditions.
Technical Context
The TPSMB7.5AHE3_A/H uses passivated anisotropic rectifier technology to achieve stable breakdown behavior and low incremental surge resistance. Its 185 °C maximum junction temperature rating enables operation in under-hood automotive environments without derating penalties up to 150 °C ambient.
It delivers 53.1 A peak pulse current (IPPM) at 11.3 V clamping with a 10/1000 µs waveform, and exhibits a +0.052 %/°C temperature coefficient of VBR, ensuring predictable voltage shift across temperature - critical for precision overvoltage threshold design in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - defines precise overvoltage trip point at 10 mA test current; ensures reliable triggering before downstream IC damage |
| VWM | 6.4 V - maximum continuous reverse working voltage; must exceed system nominal rail (e.g., 5.5 V or 6.0 V logic supply) to prevent leakage conduction |
| VC @ IPPM | 11.3 V - clamping voltage at 53.1 A surge; limits protected circuit voltage to safe level during 600 W transient events |
| PPPM | 600 W - peak pulse power handling (10/1000 µs); supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ max. | +185 °C - enables direct placement near hot components (e.g., power MOSFETs, DC-DC converters) without thermal derating loss |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" × 0.130" footprint; compatible with automated SMT assembly and IPC-7351B land patterns |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by color band; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference/ground return path | Connected to system ground plane; completes clamping loop; requires low-inductance layout to minimize VC overshoot |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables uninterrupted operation in under-hood automotive zones where ambient exceeds 125 °C - no external heatsinking required |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated load-dump and inductive kick events per ISO 16750-2 without degradation or parametric shift |
| Low clamping ratio (VC/VBR = 1.51) | Minimizes overvoltage margin needed for downstream 16 V-rated components - reduces design safety factor overhead |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive production use with full traceability, lot-level qualification data, and zero-defect manufacturing controls |
| MSL Level 1 (260 °C reflow) | Supports single-pass lead-free reflow soldering without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump (ISO 16750-2 Test 4a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery input and upstream fuse or DC-DC converter input. Use Value: Clamps transients to ≤11.3 V within nanoseconds, preventing latch-up or gate oxide rupture in automotive-grade microcontrollers and power management ICs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface, shunting fast transients before reaching op-amp or ADC input stage. Use Value: Limits voltage excursion to 11.3 V while maintaining <1 µA leakage at 6.4 V - preserving signal integrity and offset accuracy in 24-bit measurement systems. |
| Consumer Power Adapter Surge Suppression | Telecom DC Feeder Line Protection |
|
Use Scenario: Safeguarding USB-C PD power delivery circuits against AC line surges coupled through shared wall adapters. IC Role / Device Role / Timing Role: Primary-side TVS on 5–20 V output rail, positioned after buck controller but before USB-C port controller. Use Value: Absorbs 600 W pulses without failure, enabling compliance with UL 62368-1 surge immunity requirements for Class II power supplies. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, access points) from induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: Unidirectional TVS installed on each DC pair (spare pairs or data pairs) at network edge termination. Use Value: Withstands repetitive 10/1000 µs surges up to 53.1 A while maintaining <250 µA leakage at 6.4 V - ensuring minimal standby power impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same SMB package, 7.5 V VBR, but rated for 600 W with 10/1000 µs waveform and 11.3 V VC; not AEC-Q101 qualified; MSL Level 1 confirmed | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select SMBJ7.5A only if automotive qualification is unnecessary and cost sensitivity outweighs long-term reliability validation needs. |
| SMCJ7.5A | Higher-power SMC (DO-214AB) package; same 7.5 V VBR, 11.3 V VC, but 1500 W PPPM; larger footprint (0.280" × 0.240"); TJ max = 175 °C | Used where higher surge energy absorption is required (e.g., main battery input vs. sub-circuit rail); incompatible PCB land pattern | Choose SMCJ7.5A only when system-level surge testing exceeds 600 W or when board space allows larger SMC footprint. |
Compared with SMBJ7.5A and SMCJ7.5A, the TPSMB7.5AHE3_A/H uniquely combines AEC-Q101 qualification, 185 °C junction rating, and SMB footprint - making it the only option among the three validated for under-hood automotive deployment without layout or qualification compromise.
Availability
TPSMB7.5AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeders requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMB7.5AHE3_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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The TPSMB series belongs to Vishay's PAR® (Protection and Regulation) transient suppression product line, engineered specifically for robust, high-temperature-stable overvoltage protection in automotive power systems and harsh-environment electronics.
FAQ
What is the exact breakdown voltage tolerance for TPSMB7.5AHE3_A/H?
The TPSMB7.5AHE3_A/H has a guaranteed breakdown voltage range of 7.13 V (minimum) to 7.88 V (maximum) at 10 mA test current, with 7.50 V as the nominal value. This ±5% tolerance is specified per the Vishay datasheet revision 23-Jan-2024 (Document Number: 88406) and applies at TA = 25 °C. The TPSMB7.5AHE3_A/H maintains this specification across its full operating temperature range due to its +0.052 %/°C temperature coefficient.
Is TPSMB7.5AHE3_A/H RoHS-compliant and halogen-free?
Yes, the TPSMB7.5AHE3_A/H is RoHS-compliant and halogen-free. As stated in the Vishay datasheet, the HE3 suffix denotes RoHS-compliance and AEC-Q101 qualification, while the HM3 suffix adds halogen-free status. Since the part number ends in "HE3", it meets RoHS Directive 2011/65/EU but does not carry halogen-free certification - that requires the HM3 variant (e.g., TPSMB7.5AHM3_A/H). The TPSMB7.5AHE3_A/H uses matte tin-plated leads and UL 94 V-0 molding compound.
What is the maximum clamping voltage of TPSMB7.5AHE3_A/H at its rated peak pulse current?
The maximum clamping voltage (VC) of the TPSMB7.5AHE3_A/H is 11.3 V at its rated peak pulse current (IPPM) of 53.1 A, measured using the standard 10/1000 µs double-exponential waveform. This value is guaranteed per the Electrical Characteristics table in the Vishay datasheet and reflects worst-case performance at TA = 25 °C. The TPSMB7.5AHE3_A/H achieves this low clamping level via optimized junction passivation and low incremental surge resistance.
Can TPSMB7.5AHE3_A/H be used in bidirectional configurations?
No, the TPSMB7.5AHE3_A/H is unidirectional only, as explicitly stated in the Vishay datasheet under FEATURES. It is designed to clamp positive transients relative to ground and must be oriented with the cathode toward the protected line. For bidirectional protection (e.g., AC lines or differential signals), a separate device such as the TPSMB7.5CAHE3_A/H (center-tapped, bidirectional variant) is required - the TPSMB7.5AHE3_A/H cannot be repurposed or paralleled to achieve bidirectional behavior.
What is the surge current rating of TPSMB7.5AHE3_A/H for an 8.3 ms half-sine waveform?
The TPSMB7.5AHE3_A/H has a maximum non-repetitive forward surge current (IFSM) rating of 75 A for an 8.3 ms single half-sine waveform, per JEDEC standards. This rating is independent of the 10/1000 µs pulse rating and applies to events like power-up inrush or short-duration fault currents. The TPSMB7.5AHE3_A/H maintains this rating up to its maximum junction temperature of +185 °C, with derating applied above TA = 25 °C per Figure 2 in the Vishay datasheet.
TPSMB7.5AHE3_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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
TPSMB7.5AHE3_A/H FAQ
1.How can I place an order for TPSMB7.5AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB7.5AHE3_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 TPSMB7.5AHE3_A/H reliable?
The price and inventory of TPSMB7.5AHE3_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 TPSMB7.5AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB7.5AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB7.5AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB7.5AHE3_A/H?
TPSMB7.5AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB7.5AHE3_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 TPSMB7.5AHE3_A/H?
For technical support, including TPSMB7.5AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB7.5AHE3_A/H requirements.
6.How does Aetrix verify that TPSMB7.5AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB7.5AHE3_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 TPSMB7.5AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB7.5AHE3_A/H?
All TPSMB7.5AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB7.5AHE3_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 TPSMB7.5AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMB7.5AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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