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Vishay General Semiconductor - Diodes Division TPSMB11AHM3_A/H
- Part No.:
- TPSMB11AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB11AHM3_A/H.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,830
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Product details
Overview
TPSMB11AHM3_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 11.0 V nominal breakdown voltage (VBR), 9.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 15.6 V maximum clamping voltage at 38.5 A, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMB11AHM3_A/H datasheet, TPSMB11AHM3_A/H pinout, TPSMB11AHM3_A/H application, or TPSMB11AHM3_A/H equivalent, this device is selected for automotive-grade overvoltage protection where AEC-Q101 qualification, high-temperature stability, low clamping ratio, and halogen-free RoHS compliance are required.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and repetitive transients per IEC 61000-4-2/4-4/4-5. Its unidirectional polarity and cathode-band marking align with standard SMB (DO-214AA) PCB layout conventions.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 reflow (260 °C peak), and delivers stable VBR performance across -65 °C to +185 °C with a +0.067 %/°C temperature coefficient - critical for under-hood automotive and industrial power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 11.0 V - precise breakdown threshold ensures reliable triggering before downstream IC damage |
| VWM | 9.4 V - maximum continuous working voltage compatible with 9 V nominal supply rails |
| VC @ IPPM | 15.6 V - clamps 38.5 A surge to safe level for 5 V–12 V logic and power stages |
| PPPM | 600 W - handles high-energy transients per 10/1000 µs waveform without degradation |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC/DC converters) |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation |
| Package | SMB (DO-214AA) - industry-standard footprint with 0.205" x 0.220" pad layout and MSL-1 compatibility |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads. Cathode identified by black band; anode is opposite end. 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 | Connected to protected line; conducts surge current to ground when VWM exceeded |
| Anode (non-banded end) | Reference/return path | Typically tied to system ground or low-impedance return plane for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| Halogen-free & RoHS-compliant | Meets global environmental regulations without compromising thermal or electrical performance |
| 185 °C junction rating | Supports operation in high-ambient environments such as power inverters and under-dash modules |
| Low clamping ratio (VC/VBR = 1.42) | Minimizes overvoltage stress on protected ICs compared to higher-ratio alternatives |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking or special handling protocols |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 9.4 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair or single-ended output to ground. Use Value: Maintains signal integrity while limiting transient voltage to ≤15.6 V, preserving ADC accuracy and amplifier input stage reliability. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifiers and secondary-side DC bus from lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–12 V output rail to absorb repetitive switching spikes and external surges. Use Value: Extends product lifetime in ungrounded consumer devices by absorbing >600 W pulses without parameter shift. | Use Scenario: Protecting Ethernet PHY interfaces and PoE power injectors from induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Bidirectionally configured (via dual-device arrangement) or used in unidirectional rail-to-ground configuration. Use Value: Complies with IEC 61000-4-5 Level 4 (4 kV) when combined with series impedance, due to fast response and low VC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Same SMB package, 11 V VBR, but rated for 600 W with 10/1000 µs waveform; not AEC-Q101 qualified; no halogen-free option | Lacks automotive qualification and halogen-free certification; suitable for commercial/industrial use only | Select SMBJ11A only if AEC-Q101 and RoHS/halogen-free compliance are not required. |
| TPSMB11AHE3_A/H | Identical electrical specs and SMB package; differs only in suffix: HE3 denotes RoHS-compliant + AEC-Q101, HM3 adds halogen-free material | No functional difference; both meet same automotive reliability standards | Choose TPSMB11AHE3_A/H if halogen-free content is not mandated; otherwise TPSMB11AHM3_A/H is preferred. |
Compared with SMBJ11A and TPSMB11AHE3_A/H, the TPSMB11AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free construction, and 185 °C operation - making it the only choice for next-generation automotive modules requiring full environmental and thermal compliance.
Availability
TPSMB11AHM3_A/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface design, and telecom line card development requiring stable component supply and long-term lifecycle support.
Supply support for TPSMB11AHM3_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, TVS devices, and optoelectronics with emphasis on reliability, thermal performance, and application-specific validation.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS platform, engineered specifically for high-temperature, high-reliability transient suppression in automotive and industrial power systems.
FAQ
What is the breakdown voltage tolerance for TPSMB11AHM3_A/H?
The TPSMB11AHM3_A/H has a specified breakdown voltage range of 10.5 V (min) to 11.6 V (max) at 1 mA test current, with a nominal value of 11.0 V. This ±5% tolerance ensures consistent clamping behavior across production lots and supports robust design margins for 9–12 V system rails. The TPSMB11AHM3_A/H maintains this specification under all qualified operating conditions including elevated temperature and humidity.
Is TPSMB11AHM3_A/H suitable for bidirectional transient protection?
No, the TPSMB11AHM3_A/H is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive-going transients relative to ground and must be oriented with the cathode toward the protected line. For bidirectional protection, two TPSMB11AHM3_A/H devices may be used in series opposition, or a dedicated bidirectional TVS such as SMBJ11CA should be selected instead.
Does TPSMB11AHM3_A/H require derating at high ambient temperatures?
Yes, the TPSMB11AHM3_A/H must be derated above 25 °C ambient per Figure 2 in the datasheet. Its peak pulse power decreases linearly to ~50% at +125 °C ambient when mounted on standard 0.2" × 0.2" copper pads. Designers must apply this derating curve to ensure sustained 600 W capability is not assumed outside 25 °C testing conditions.
What is the meaning of the "HM3" suffix in TPSMB11AHM3_A/H?
The "HM3" suffix in TPSMB11AHM3_A/H indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It distinguishes this variant from the "HE3" version (RoHS + AEC-Q101 but not halogen-free) and confirms compliance with automotive material restrictions including JEDEC J-STD-20 and JESD201 Class 2 whisker resistance requirements.
Can TPSMB11AHM3_A/H replace SMAJ11A in existing designs?
TPSMB11AHM3_A/H is not a direct drop-in replacement for SMAJ11A due to package differences: SMAJ11A uses SMA (DO-214AC), while TPSMB11AHM3_A/H uses SMB (DO-214AA) - a larger outline with different pad dimensions and thermal mass. Layout revision is required. Electrical parameters are similar, but the TPSMB11AHM3_A/H offers superior thermal rating (+185 °C vs. +150 °C) and automotive qualification.
TPSMB11AHM3_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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
TPSMB11AHM3_A/H FAQ
1.How can I place an order for TPSMB11AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB11AHM3_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 TPSMB11AHM3_A/H reliable?
The price and inventory of TPSMB11AHM3_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 TPSMB11AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB11AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB11AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB11AHM3_A/H?
TPSMB11AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB11AHM3_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 TPSMB11AHM3_A/H?
For technical support, including TPSMB11AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB11AHM3_A/H requirements.
6.How does Aetrix verify that TPSMB11AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB11AHM3_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 TPSMB11AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB11AHM3_A/H?
All TPSMB11AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB11AHM3_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 TPSMB11AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMB11AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB11AHM3_A/H Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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