My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB27AHE3/5BT
;;2.jpg)
- Part No.:
- TPSMB27AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB27AHE3/5BT.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,946
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB27AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for clamping inductive and lightning-induced transients on power rails and signal lines. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 16 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - suitable for automotive power rail protection in engine control units and body electronics.
For engineers reviewing the TPSMB27AHE3/5BT datasheet, TPSMB27AHE3/5BT pinout, TPSMB27AHE3/5BT application, or TPSMB27AHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and thermal derating 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 unidirectional architecture provides forward conduction only during overvoltage events, enabling precise clamping without reverse leakage degradation at VWM = 23.1 V.
The device delivers 37.5 V clamping at 16 A (10/1000 µs), with <0.087 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold shift across -65 °C to +185 °C operating range. It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V at 1 mA - defines reliable turn-on threshold for transient suppression |
| VWM | 23.1 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 37.5 V at 16 A (10/1000 µs) - clamped voltage seen by protected IC during worst-case surge |
| PPPM | 600 W - peak pulse power handling capability under standard 10/1000 µs waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments without thermal derating penalties |
| Polarity | Unidirectional - blocks reverse current until breakdown; conducts forward during overvoltage |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint |
Pinout & Package
TPSMB27AHE3/5BT uses the SMB (DO-214AA) surface-mount package: cathode indicated by a color band; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102. The package measures 4.57 mm × 3.94 mm × 2.20 mm (L × W × H) with 2.44 mm lead spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected circuit ground or lower-potential rail; forms forward path when VAK > VBR |
| Cathode | Current exit point during clamping | Connected to line being protected (e.g., 24 V supply); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 185 °C junction rating | Enables operation in high-ambient environments such as engine compartments without derating |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 Level 4 transients |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes stress on downstream components during fast-rising transients |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at 260 °C peak without baking preconditioning |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp transients above 27 V. Use Value: Limits voltage excursion to ≤37.5 V at 16 A surge, preventing damage to MCU power inputs and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC input cards. IC Role / Device Role / Timing Role: Standoff protection element on signal lines exposed to ESD and field wiring transients. Use Value: Maintains 23.1 V working margin while clamping fast 10/1000 µs surges to 37.5 V, preserving ADC accuracy. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Circuits |
Use Scenario: Securing -48 V telecom power distribution boards against lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Reverse-biased clamping device referenced to negative rail, absorbing positive transients. Use Value: Withstands repetitive 600 W pulses with <0.01% duty cycle, meeting GR-1089-CORE immunity requirements. | Use Scenario: Shielding microcontroller GPIOs and gate drivers in washing machine motor control boards. IC Role / Device Role / Timing Role: Localized transient suppressor on MOSFET gate drive traces and power supply inputs. Use Value: Fast response (<1 ns) and low dynamic impedance ensure gate oxide integrity during brush-commutator arcing events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27A | Same SMB package, identical VBR (25.7–28.4 V), but not AEC-Q101 qualified; 150 °C TJ max. | Lacks automotive qualification; unsuitable for under-hood deployment where 185 °C operation required. | Select TPSMB27AHE3/5BT when AEC-Q101 compliance and extended temperature range are mandatory. |
| SMCJ27A | Higher power (1500 W), larger SMC (DO-214AB) package; same VBR and VC specs. | Requires PCB layout change due to 7.11 mm × 6.22 mm footprint vs. SMB's 4.57 mm × 3.94 mm. | Choose TPSMB27AHE3/5BT for space-constrained designs needing 600 W in minimal area and automotive qualification. |
Compared with SMBJ27A and SMCJ27A, the TPSMB27AHE3/5BT uniquely combines AEC-Q101 qualification, 185 °C operation, and SMB footprint - making it the only option for compact, high-reliability automotive power rail protection without layout or qualification compromise.
Availability
TPSMB27AHE3/5BT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply and full traceability.
Supply support for TPSMB27AHE3/5BT 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 automotive qualification.
The TPSMB series belongs to Vishay's PAR® (Protection and Regulation) transient suppressor family, engineered specifically for high-temperature, high-reliability applications in automotive, industrial, and telecom infrastructure where sustained 185 °C operation and AEC-Q101 validation are critical.
FAQ
What is the maximum clamping voltage of the TPSMB27AHE3/5BT under standard test conditions?
The TPSMB27AHE3/5BT has a maximum clamping voltage (VC) of 37.5 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 16 A. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during surge events. The TPSMB27AHE3/5BT maintains this clamping performance across its full operating temperature range, supporting robust design margins in harsh environments.
Is the TPSMB27AHE3/5BT qualified for automotive applications?
Yes, the TPSMB27AHE3/5BT is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock - validating suitability for under-hood and body-control module applications. The TPSMB27AHE3/5BT also supports 185 °C junction operation, exceeding typical automotive requirements.
What does the "HE3" suffix indicate in TPSMB27AHE3/5BT?
The "HE3" suffix in TPSMB27AHE3/5BT specifies that the device is RoHS-compliant, halogen-free, and AEC-Q101 qualified. It also indicates compliance with JESD201 Class 2 whisker resistance and MSL Level 1 per J-STD-020. The "5BT" portion refers to tape-and-reel packaging: 7" diameter reel with 750 units per reel. This full designation ensures traceability to Vishay's qualified manufacturing lot and process controls for the TPSMB27AHE3/5BT.
How does the TPSMB27AHE3/5BT compare to bidirectional TVS diodes in surge protection?
The TPSMB27AHE3/5BT is unidirectional, meaning it clamps only positive transients relative to its cathode connection and conducts forward during overvoltage. Unlike bidirectional devices, it exhibits negligible leakage at VWM = 23.1 V and avoids reverse conduction during normal operation - ideal for DC power rails. Bidirectional alternatives would require higher VWM headroom and introduce symmetrical clamping, making the TPSMB27AHE3/5BT preferable for single-polarity protection where precision standoff and low leakage are critical.
What is the thermal derating behavior of the TPSMB27AHE3/5BT above 25 °C ambient?
The TPSMB27AHE3/5BT follows Vishay's standard derating curve (Fig. 2 in datasheet 88406): peak pulse power decreases linearly from 600 W at 25 °C to ~300 W at 125 °C ambient, with full 600 W capability restored at case temperatures ≤25 °C. Derating is based on junction temperature limits up to +185 °C. For accurate system-level thermal modeling, designers must account for PCB copper pad area (0.2" × 0.2" recommended) and airflow, as specified in the TPSMB27AHE3/5BT datasheet.
TPSMB27AHE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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 (SMBJ)
TPSMB27AHE3/5BT FAQ
1.How can I place an order for TPSMB27AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB27AHE3/5BT 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 TPSMB27AHE3/5BT reliable?
The price and inventory of TPSMB27AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB27AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB27AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB27AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB27AHE3/5BT?
TPSMB27AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB27AHE3/5BT 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 TPSMB27AHE3/5BT?
For technical support, including TPSMB27AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB27AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB27AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB27AHE3/5BT 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 TPSMB27AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB27AHE3/5BT?
All TPSMB27AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB27AHE3/5BT, 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 TPSMB27AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB27AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB27AHE3/5BT 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 …
