Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
TPSMA27AHE3_B/I
Vishay General Semiconductor - Diodes Division
TVS DIODE 23.1VWM 37.5VC DO214AC
55235 Pcs New Original In Stock
37.5V Clamp 10.7A Ipp Tvs Diode Surface Mount DO-214AC (SMA)
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (346 Ratings)
TPSMA27AHE3_B/I
Product Overview
1095086
DiGi Electronics Part Number
TPSMA27AHE3_B/I-DGManufacturer
Vishay General Semiconductor - Diodes Division
TPSMA27AHE3_B/I
Description
TVS DIODE 23.1VWM 37.5VC DO214ACInventory
55235 Pcs New Original In Stock
37.5V Clamp 10.7A Ipp Tvs Diode Surface Mount DO-214AC (SMA)
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
TPSMA27AHE3_B/I Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
PAR®
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
23.1V
Voltage - Breakdown (Min)
25.7V
Voltage - Clamping (Max) @ Ipp
37.5V
Current - Peak Pulse (10/1000µs)
10.7A
Power - Peak Pulse
400W
Power Line Protection
No
Applications
-
Capacitance @ Frequency
-
Operating Temperature
-65°C ~ 185°C (TJ)
Grade
Automotive
Qualification
AEC-Q101
Mounting Type
Surface Mount
Package / Case
DO-214AC, SMA
Supplier Device Package
DO-214AC (SMA)
Base Product Number
TPSMA27
Datasheet & Documents
HTML Datasheet
TPSMA27AHE3_B/I-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
112-TPSMA27AHE3_B/ICT
112-TPSMA27AHE3_B/IDKR
TPSMA27AHE3_B/I-DG
112-TPSMA27AHE3_B/ITR
Standard Package
7,500
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
TPSMA27AHE3_A/I
Vishay General Semiconductor - Diodes Division
2675
TPSMA27AHE3_A/I-DG
0.0929
Direct
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
배송이 정말 빠르고 포장도 꼼꼼하게 되어 있어서 좋아요. 가격도 경쟁력이 있어서 한번 구매하면 계속 찾게 됩니댜.
Dec 02, 2025
처음부터 끝까지 투명하고 정직한 거래로, 신뢰와 만족을 동시에 얻었어요.
Dec 02, 2025
他們的物流速度真的很快，幾乎是隔天就能收到商品，效率大大提升。
Dec 02, 2025
DiGi Electronics的產品品質讓我很放心，出貨速度也非常迅速，很棒的購物體驗！
Dec 02, 2025
DiGi Electronics propose des produits qui allient économie et fiabilité.
Dec 02, 2025
Their timely shipments help us meet critical project milestones.
Dec 02, 2025
My experience has always been positive, thanks to their quick dispatch and attentive support.
Dec 02, 2025
Support staff were friendly and quick to assist, making the post-purchase process smooth.
Dec 02, 2025
My order arrived rapidly, and I’m happy with the efficient delivery process.
Dec 02, 2025
With such a broad product lineup, DiGi Electronics is my go-to store for all tech needs.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can the TPSMA27AHE3_B/I be used as a drop-in replacement for a SMAJ24A in a 24V automotive power rail protection circuit, and what are the key risks if the system experiences sustained overvoltage conditions?
While the TPSMA27AHE3_B/I (23.1V reverse standoff) and SMAJ24A (24V reverse standoff) have similar voltage ratings, the TPSMA27AHE3_B/I has a lower breakdown voltage (25.7V min vs. ~26.7V for SMAJ24A) and a higher clamping voltage (37.5V @ 10.7A vs. 38.9V @ 10.5A), making it slightly more responsive but potentially less tolerant to marginal overvoltage events. The critical risk lies in sustained overvoltage—neither device is rated for continuous conduction, and prolonged exposure above 23.1V can cause thermal runaway. In automotive environments with load dump transients exceeding ISO 7637-2 pulses, ensure upstream fusing or series impedance limits energy delivery. Always validate with actual transient waveforms; the TPSMA27AHE3_B/I’s AEC-Q101 qualification supports automotive use, but system-level protection coordination is essential to prevent catastrophic failure during extended faults.
How does the TPSMA27AHE3_B/I compare to the Littelfuse SMAJ24A in terms of surge handling and long-term reliability under repeated ESD and load dump events in an automotive infotainment module?
The TPSMA27AHE3_B/I offers comparable peak pulse power (400W vs. 400W for SMAJ24A) and similar Ipp (10.7A vs. 10.5A), but its lower reverse standoff voltage (23.1V vs. 24V) means it begins conducting earlier during marginal overvoltage, which may increase stress on downstream components if clamping isn’t well-matched. For repeated ESD (IEC 61000-4-2) and ISO 7637-2 load dump pulses, both diodes meet automotive standards, but the TPSMA27AHE3_B/I’s tighter parametric distribution and AEC-Q101 qualification provide better batch consistency. However, its DO-214AC (SMA) package has identical thermal resistance to the SMAJ24A, so reliability under cyclic stress depends heavily on PCB copper area and via stitching. For mission-critical infotainment systems, consider adding a PTC fuse or ferrite bead upstream to reduce duty cycle on the TVS and extend lifespan during frequent minor transients.
What layout and thermal considerations are critical when using the TPSMA27AHE3_B/I in a high-vibration automotive environment with limited PCB copper area for heat dissipation?
In high-vibration automotive applications, mechanical stress on the DO-214AC (SMA) package can lead to solder joint fatigue, especially if the PCB lacks adequate thermal relief or strain relief features. The TPSMA27AHE3_B/I’s MSL 1 rating allows unlimited floor life, but thermal management remains crucial: during a 400W pulse, junction temperature can spike rapidly even with brief events. To mitigate risk, use a minimum of two thermal vias under the cathode pad connected to a ground plane, and ensure the anode trace is short and wide to minimize inductance. Avoid placing the diode near board edges or connectors subject to flex. In confined spaces, consider conformal coating to reduce moisture-induced corrosion, but verify compatibility with coating materials to prevent thermal insulation. Always perform thermal imaging during validation testing to confirm hotspot locations and validate that TJ stays below 185°C under worst-case pulse repetition.
Is the TPSMA27AHE3_B/I suitable for protecting a 24V industrial CAN bus line against ISO 7637-2 Pulse 5a transients, and how should it be coordinated with other protection components like common-mode chokes or GDTs?
Yes, the TPSMA27AHE3_B/I is suitable for 24V CAN bus protection against ISO 7637-2 Pulse 5a (87V, 400ms), as its 37.5V clamping voltage keeps transceiver voltages within safe limits. However, standalone use risks excessive energy absorption; coordinate it with a gas discharge tube (GDT) or multi-layer varistor (MLV) for high-energy primary protection and a common-mode choke to filter differential noise. Place the TPSMA27AHE3_B/I as close as possible to the connector, followed by the choke, to minimize loop inductance. Without proper coordination, the TVS may degrade prematurely from repeated high-energy pulses. Use a series resistor (1–10Ω) between the GDT and TVS to limit current sharing imbalance. Validate the full stack with actual transient testing, as parasitic inductance can cause voltage overshoot beyond datasheet clamping levels, especially in daisy-chained topologies.
Can the TPSMA27AHE3_B/I be safely paralleled with another identical unit to increase surge current capability in a high-reliability motor control unit, and what derating or matching precautions are necessary?
Paralleling two TPSMA27AHE3_B/I diodes is not recommended without careful design due to inherent parameter mismatch—especially in breakdown voltage and dynamic resistance—which leads to unequal current sharing and potential thermal runaway. Even with identical part numbers, typical manufacturing tolerances can cause one diode to conduct 70% or more of the total surge current. If paralleling is unavoidable (e.g., for redundancy in safety-critical motor drives), use individual series resistors (0.5–2Ω, pulse-rated) on each anode to force current balancing, and ensure both devices share the same copper pour with symmetric layout. Derate total power handling by at least 30% to account for imbalance, and never exceed the absolute maximum rating of a single device under any condition. For higher surge requirements, select a single higher-power TVS like the SMCJ24A in a DO-214AB package instead, which offers better scalability and proven reliability in automotive motor applications.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
TPSMA27AHE3_B/I CAD Models
Vishay General Semiconductor - Diodes Division TPSMA27AHE3_B/I PCB symbols & footprints
productDetail
