# TVS Diode, ESDA2, Unidirectional, 24 V, SOT-23, 3 Pins
**URL**: https://novapart.co/products/ESDA25L/tvs-diode-esda2-unidirectional-24-v-sot-23-3-pins
**SKU**: ESDA25L
**Manufacturer**: STMICROELECTRONICS
**Category**: Circuit Protection || TVS - Transient Voltage Suppressors || TVS Diodes
**Price**: €0.1190
**Stock**: 1000+
**Lead Time**: 125 days (indicative)
## Description
Product Range:ESDA2 Series; TVS Polarity:Unidirectional; Reverse Stand-Off Voltage Vrwm:24V; Clamping Voltage Vc Max:-; Diode Case Style:SOT-23; No. of Pins:3Pins; Breakdown Voltage Min
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Tvs Polarity | Unidirectional |
| Product Range | ESDA2 |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | SOT-23 |
| Clamping Voltage Max | - |
| Reverse Standoff Voltage | 24V |
| Maximum Breakdown Voltage | 30V |
| Minimum Breakdown Voltage | 25V |
| Operating Temperature Max | 125°C |
| Peak Pulse Power Dissipation | 300W |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1749264/)
## **ESDAL**
## Dual Transil™ array for ESD protection
Datasheet - production data
## **Applications**
Where transient overvoltage protection in ESD sensitive equipment is required, such as:
- Entertainment
- Signal communications
- Connectivity
- Comfort and convenience
## **Description**
**==> picture [42 x 7] intentionally omitted <==**
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SOT23-3L
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## **Features**
- Unidirectional device
- Low leakage current (IR max. < 20 µA at VBR)
- 300 W peak pulse power (8/20 µs)
This device is a diode array designed to protect 1 line or 2 lines against ESD transients.
The device is ideal for applications where both reduced line capacitance and board space saving are required.
It can also be used as bidirectional suppressor by connecting only pin 1 and 2.
## **Figure 1: Functional diagram**
## **Benefits**
- High ESD protection level: up to 30 kV
- High integration
- Suitable for high density boards
## **Complies with the following standards**
- IEC 61000-4-2 (exceeds level 4) : 30 kV (air discharge)
**==> picture [110 x 89] intentionally omitted <==**
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1
3
2
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- 30 kV (contact discharge)
1/11
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DocID7058 Rev 5
This is information on a product in full production.
_www.st.com_
**Characteristics**
**ESDAL**
## **1 Characteristics**
**Table 1: Absolute maximum ratings (Tamb = 25 °C)**
|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|Vpp|Peak pulse voltage_(1)_|IEC 61000-4-2:
Contact discharge
Air discharge|30
30|kV|
|Ppp|Peak pulse power (8/20 μs)||300|W|
|Ipp|Peak pulse current (8/20 μs)|ESDA5V3L
ESDA6V1L
ESDA14V2L
ESDA25L
ESDA37L|25
18
14
7
6.3|A|
|Tj|Operating junction temperature range||-40 to 150|°C|
|Tstg|Storage junction temperature range||-65 to 150|°C|
|TL|Maximum lead temperature for soldering during 10 s at 5 mm from
case||260|°C|
## **Notes:**
(1)For a surge greater than the maximum values, the diode will fail in short-circuit.
**Figure 2: Electrical characteristics (definitions)**
**==> picture [406 x 201] intentionally omitted <==**
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I
Symbol Parameter IF
VBR = Breakdown voltage
VCL = Clamping voltage
VRM = Stand-off voltage
VBR
IRM = Leakage current VF
IF = Forward current Vcl VRM V
IPP = Peak pulse current IRM
IR = Breakdown current
VF = Forward voltage drop
CRd == CapacitanceDynamic impedance Slope = 1/Rd IPP
αT = Voltage temperature
**----- End of picture text -----**
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DocID7058 Rev 5
**ESDAL**
**Characteristics**
||**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**Table 2: Electrical characteristics(Tamb =**|**25 °C)**|||
|---|---|---|---|---|---|---|---|---|---|---|
||**VBR at IR**|||**IRM at VRM**||**Rd****_(1)_**|**αT****_(2)_**|**Cline**|**VF at IF**||
|**Order code**|**Min.**|**Max.**||**Max.**||**Typ.**|**Max.**|**Typ. at 0 V bias**|**Max.**||
||**V**|**V**|**mA**|**µA**|**V**|**mΩ**|**10-4/°C**|**pF**|**V**|**mA**|
|ESDA5V3L|5.3|5.9|1|2|3|280|5|220|1.25|200|
|ESDA6V1L|6.1|7.2|1|20|5.25|350|6|140|1.25|200|
|ESDA14V2L|14.2|15.8|1|5|12|650|10|90|1.25|200|
|ESDA25L|25|30|1|1|24|1000|10|50|1.2|10|
|ESDA37L|37|43.3|1|1|36|2400|10|48|0.9|10|
## **Notes:**
(1)Square pulse Ipp = 15 A, tp = 2.5 µs
(2)∆ VBR = αT x (Tamb -25 °C) x VBR (25 °C)
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DocID7058 Rev 5
**Characteristics**
**ESDAL**
## **1.1 Characteristics (curves)**
**==> picture [456 x 180] intentionally omitted <==**
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Figure 4: Peak pulse power versus exponential
Figure 3: Variation of peak pulse power versus pulse duration
initial junction temperature PPP(W)
PPP(W)
350 Tj initial = 25 °Cmaximum value
1000
300
250
200
150
100
100
50
0 Tj(°C)
25 50 75 100 125 150 175 tp(µs)
ESDA5V3L ESDA6V1L ESDA14V2L ESDA25L ESDA37L 10
10 100 1000
**----- End of picture text -----**
**==> picture [457 x 178] intentionally omitted <==**
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Figure 5: Variation of clamping voltage versus Figure 6: Relative variation of leakage current
peak pulse current (max. values, 8/20 µs waveform) at VR = VRM versus junction values
IPP(A) Ir(nA)
100 10000
Tj initial = 25 °C8/20µs ESDA5V3L
ESDA6V1L
1000
ESDA14V2L
ESDA25L
10 ESDA37L 100
10
1 1 ESDA5V3L
ESDA6V1L
0.1 ESDA14V2L
ESDA25L
VCL(V) Tj(°C) ESDA37L
0.1 0.01
0 10 20 30 40 50 60 25 50 75 100 125 150
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4/11
DocID7058 Rev 5
**ESDAL**
**Application** and design guidelines
## **2 Application and design guidelines**
Refer to STMicroelectronics application note:
- AN2689: Protection of automotive electronics from electrical hazards, guidelines for design and component selection.
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**Package** information
**ESDAL**
## **3 Package information**
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: _**www.st.com**_ . ECOPACK[®] is an ST trademark.
- Epoxy meets UL 94,V0
- Lead-free package
## **3.1 SOT23-3L mechanical data**
**Figure 7: SOT23-3L package outline**
**==> picture [28 x 6] intentionally omitted <==**
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0053390_I
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~~ne~~ 6/11 DocID7058 Rev 5
**Package** information
**ESDAL**
**Table 3: SOT23-3L mechanical data**
|**Dim.**
~~es~~|**mm**
~~po~~
~~ee~~|**mm**
~~po~~
~~ee~~|**mm**
~~po~~
~~ee~~|
|---|---|---|---|
||**Min.**
~~po~~
~~es~~|**Typ.**
~~po~~
~~es~~
~~ee~~|**Max.**
~~po~~
~~es~~|
|A
~~es~~
~~es~~|0.89
~~es~~|~~es~~
~~ee~~|1.40
~~es~~|
|A1
~~es~~
~~es~~
~~a~~|0
~~ee~~|~~ee~~|0.10|
|B
~~es~~
~~a~~
~~es~~|0.30
~~ee~~
~~ee~~|~~ee~~|0.51
~~ee~~|
|C
~~a~~
~~es~~|0.085
~~ee~~
~~ee~~|~~ee~~|0.18
~~ee~~|
|D
~~es~~
~~a~~
~~es~~|2.75
~~ee~~|~~ee~~|3.04
~~ee~~|
|e
~~a~~
~~es~~
~~es~~|0.85||1.05|
|e1
~~es~~
~~es~~
~~es~~|1.70||2.10|
|E
~~es~~
~~es~~
~~es~~|1.20||1.75|
|H
~~es~~
~~es~~|2.10||3.00|
|L
~~es~~
~~a~~
~~es~~|~~ee~~|0.60
~~ee~~|~~ee~~|
|S
~~a~~
~~es~~|0.35
~~ee~~|~~ee~~|0.65
~~ee~~|
|L1
~~es~~
~~a~~
~~es~~|0.25
~~ee~~|~~ee~~|0.55
~~ee~~|
|a
~~es~~|0°||8°|
**Figure 8: SOT23-3L recommended footprint**
Dimensions are in mm.
7/11 ~~ee~~
DocID7058 Rev 5
**Recommendation** on PCB assembly
**ESDAL**
## **4 Recommendation on PCB assembly**
## **4.1 Solder paste**
1. Halide-free flux qualification ROL0 according to ANSI/J-STD-004.
2. “No clean” solder paste is recommended.
3. Offers a high tack force to resist component movement during high speed.
4. Use solder paste with fine particles: powder particle size 20-45 µm.
## **4.2**
## **Placement**
1. Manual positioning is not recommended.
2. It is recommended to use the lead recognition capabilities of the placement system, not the outline centering
3. Standard tolerance of ±0.05 mm is recommended.
4. 3.5 N placement force is recommended. Too much placement force can lead to squeezed out solder paste and cause solder joints to short. Too low placement force can lead to insufficient contact between package and solder paste that could cause open solder joints or badly centered packages.
5. To improve the package placement accuracy, a bottom side optical control should be performed with a high resolution tool.
6. For assembly, a perfect supporting of the PCB (all the more on flexible PCB) is recommended during solder paste printing, pick and place and reflow soldering by using optimized tools.
## **4.3**
## **PCB design preference**
1. To control the solder paste amount, the closed via is recommended instead of open vias.
2. The position of tracks and open vias in the solder area should be well balanced. A symmetrical layout is recommended, to avoid any tilt phenomena caused by asymmetrical solder paste due to solder flow away.
8/11
DocID7058 Rev 5
**Recommendation** on PCB assembly
**ESDAL**
## **4.4 Reflow profile**
**Figure 9: ST ECOPACK® recommended soldering reflow profile for PCB mounting**
Minimize air convection currents in the reflow oven to avoid component movement.
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DocID7058 Rev 5
**Ordering** information
**ESDAL**
## **5 Ordering information**
**Figure 10: Ordering information scheme**
**==> picture [406 x 230] intentionally omitted <==**
**----- Start of picture text -----**
ESDA XXX L
ESD Array
Minimum breakdown voltage
Package
L = SOT23-3L
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**Table 3: Ordering information**
|**Order code**|**Marking****_(1)_**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|ESDA5V3L|EL53|SOT23-3L|8.7 mg|3000|Tape and reel|
|ESDA6V1L|EL61|||||
|ESDA14V2L|EL15|||||
|ESDA25L|EL25|||||
|ESDA37L|EL37||9.8 mg|||
- **Notes:** (1)The marking can be rotated by multiples of 90° to differentiate assembly location.
## **6 Revision history**
**Table 4: Document revision history**
|**Date**|**Revision**|**Changes**|
|---|---|---|
|31-Jul-2012|4|First issue.|
|20-Jul-2017|5|Added ESDA37L package information.|
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## **ESDAL**
## **IMPORTANT NOTICE – PLEASE READ CAREFULLY**
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2017 STMicroelectronics – All rights reserved
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## Links
- [View this product on Novapart](https://novapart.co/products/ESDA25L/tvs-diode-esda2-unidirectional-24-v-sot-23-3-pins)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/stmicroelectronics/esda25l/transil-array-uni-dual-esd-sot/dp/1749264)
---
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